CN101503239B - Multicomponent composite flocculating setting agent and use in arsenic contamination water treatment - Google Patents
Multicomponent composite flocculating setting agent and use in arsenic contamination water treatment Download PDFInfo
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- CN101503239B CN101503239B CN2009100805955A CN200910080595A CN101503239B CN 101503239 B CN101503239 B CN 101503239B CN 2009100805955 A CN2009100805955 A CN 2009100805955A CN 200910080595 A CN200910080595 A CN 200910080595A CN 101503239 B CN101503239 B CN 101503239B
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- arsenic
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- sedimentation agent
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 485
- 229910001868 water Inorganic materials 0.000 title claims abstract description 485
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 title claims abstract description 448
- 229910052785 arsenic Inorganic materials 0.000 title claims abstract description 447
- 239000002131 composite material Substances 0.000 title claims abstract description 367
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 363
- 230000003311 flocculating effect Effects 0.000 title description 159
- 238000011109 contamination Methods 0.000 title description 101
- 229910052751 metal Inorganic materials 0.000 claims abstract description 146
- 239000002184 metal Substances 0.000 claims abstract description 146
- 238000004062 sedimentation Methods 0.000 claims abstract description 49
- 150000002505 iron Chemical class 0.000 claims abstract description 41
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 28
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 18
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 18
- 238000013329 compounding Methods 0.000 claims abstract 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 303
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical group Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 85
- 229910052782 aluminium Inorganic materials 0.000 claims description 65
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 65
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 64
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 64
- 239000012286 potassium permanganate Substances 0.000 claims description 62
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 60
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims description 56
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 53
- 229940037003 alum Drugs 0.000 claims description 53
- 238000003756 stirring Methods 0.000 claims description 41
- 238000006243 chemical reaction Methods 0.000 claims description 36
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 33
- 229920001661 Chitosan Polymers 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 16
- 238000005189 flocculation Methods 0.000 claims description 15
- 230000016615 flocculation Effects 0.000 claims description 15
- 235000019830 sodium polyphosphate Nutrition 0.000 claims description 12
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 10
- 229920002472 Starch Polymers 0.000 claims description 10
- 239000000661 sodium alginate Substances 0.000 claims description 10
- 235000010413 sodium alginate Nutrition 0.000 claims description 10
- 229940005550 sodium alginate Drugs 0.000 claims description 10
- 239000008107 starch Substances 0.000 claims description 10
- 235000019698 starch Nutrition 0.000 claims description 10
- JYLNVJYYQQXNEK-UHFFFAOYSA-N 3-amino-2-(4-chlorophenyl)-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(CN)C1=CC=C(Cl)C=C1 JYLNVJYYQQXNEK-UHFFFAOYSA-N 0.000 claims description 9
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 4
- 229910002651 NO3 Inorganic materials 0.000 claims description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 claims description 3
- 239000001488 sodium phosphate Substances 0.000 claims description 3
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 3
- 235000011008 sodium phosphates Nutrition 0.000 claims description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 3
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims 4
- 230000003068 static effect Effects 0.000 claims 4
- 238000011144 upstream manufacturing Methods 0.000 claims 3
- 238000005273 aeration Methods 0.000 claims 2
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims 2
- 229920002301 cellulose acetate Polymers 0.000 claims 1
- 159000000014 iron salts Chemical class 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 239000007864 aqueous solution Substances 0.000 abstract description 113
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 58
- 229910052742 iron Inorganic materials 0.000 abstract description 28
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract description 15
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052793 cadmium Inorganic materials 0.000 abstract description 3
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 abstract description 3
- 239000011651 chromium Substances 0.000 abstract description 3
- 229910052804 chromium Inorganic materials 0.000 abstract description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 239000010949 copper Substances 0.000 abstract description 3
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 229910052748 manganese Inorganic materials 0.000 abstract description 2
- 239000011572 manganese Substances 0.000 abstract description 2
- 238000003903 river water pollution Methods 0.000 abstract description 2
- 229910019142 PO4 Inorganic materials 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 1
- 239000010452 phosphate Substances 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- 239000002352 surface water Substances 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 description 64
- 159000000013 aluminium salts Chemical class 0.000 description 53
- 229910000329 aluminium sulfate Inorganic materials 0.000 description 53
- -1 comprises absorption Chemical compound 0.000 description 44
- AMWRITDGCCNYAT-UHFFFAOYSA-L manganese oxide Inorganic materials [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 40
- 230000036571 hydration Effects 0.000 description 39
- 238000006703 hydration reaction Methods 0.000 description 39
- 239000000243 solution Substances 0.000 description 34
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 33
- 239000012266 salt solution Substances 0.000 description 32
- 238000002360 preparation method Methods 0.000 description 28
- 229910052739 hydrogen Inorganic materials 0.000 description 26
- 239000001257 hydrogen Substances 0.000 description 26
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 25
- 238000000034 method Methods 0.000 description 25
- 239000011790 ferrous sulphate Substances 0.000 description 24
- 235000003891 ferrous sulphate Nutrition 0.000 description 24
- 239000011259 mixed solution Substances 0.000 description 24
- 238000005507 spraying Methods 0.000 description 20
- 238000002156 mixing Methods 0.000 description 19
- 235000019353 potassium silicate Nutrition 0.000 description 18
- 238000012545 processing Methods 0.000 description 18
- 230000003203 everyday effect Effects 0.000 description 15
- 150000002696 manganese Chemical class 0.000 description 15
- 230000008021 deposition Effects 0.000 description 14
- 230000003647 oxidation Effects 0.000 description 14
- 238000007254 oxidation reaction Methods 0.000 description 14
- 150000002431 hydrogen Chemical class 0.000 description 13
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 13
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 13
- 150000002500 ions Chemical class 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-O oxonium Chemical compound [OH3+] XLYOFNOQVPJJNP-UHFFFAOYSA-O 0.000 description 13
- 239000004575 stone Substances 0.000 description 13
- 230000015572 biosynthetic process Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 12
- MVFCKEFYUDZOCX-UHFFFAOYSA-N iron(2+);dinitrate Chemical compound [Fe+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MVFCKEFYUDZOCX-UHFFFAOYSA-N 0.000 description 10
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 9
- 239000002689 soil Substances 0.000 description 9
- 239000005995 Aluminium silicate Substances 0.000 description 8
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 8
- 235000012211 aluminium silicate Nutrition 0.000 description 8
- 239000004927 clay Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 239000010881 fly ash Substances 0.000 description 8
- 230000005484 gravity Effects 0.000 description 8
- 230000008676 import Effects 0.000 description 8
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 8
- 230000035484 reaction time Effects 0.000 description 8
- 239000003643 water by type Substances 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 6
- CNFDGXZLMLFIJV-UHFFFAOYSA-L manganese(II) chloride tetrahydrate Chemical compound O.O.O.O.[Cl-].[Cl-].[Mn+2] CNFDGXZLMLFIJV-UHFFFAOYSA-L 0.000 description 6
- 238000006116 polymerization reaction Methods 0.000 description 6
- 239000008399 tap water Substances 0.000 description 6
- 235000020679 tap water Nutrition 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 description 5
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 4
- 239000001110 calcium chloride Substances 0.000 description 4
- 229910001628 calcium chloride Inorganic materials 0.000 description 4
- 229910001629 magnesium chloride Inorganic materials 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229940099596 manganese sulfate Drugs 0.000 description 3
- 239000011702 manganese sulphate Substances 0.000 description 3
- 235000007079 manganese sulphate Nutrition 0.000 description 3
- 239000005022 packaging material Substances 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- FGIWMSAVEQNPPQ-UHFFFAOYSA-N arsenic;hydrate Chemical compound O.[As] FGIWMSAVEQNPPQ-UHFFFAOYSA-N 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000011133 lead Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 229910021380 Manganese Chloride Inorganic materials 0.000 description 1
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- JYIBXUUINYLWLR-UHFFFAOYSA-N aluminum;calcium;potassium;silicon;sodium;trihydrate Chemical compound O.O.O.[Na].[Al].[Si].[K].[Ca] JYIBXUUINYLWLR-UHFFFAOYSA-N 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- LCPUDZUWZDSKMX-UHFFFAOYSA-K azane;hydrogen sulfate;iron(3+);sulfate;dodecahydrate Chemical compound [NH4+].O.O.O.O.O.O.O.O.O.O.O.O.[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O LCPUDZUWZDSKMX-UHFFFAOYSA-K 0.000 description 1
- 229910001603 clinoptilolite Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 239000002384 drinking water standard Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000000909 electrodialysis Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000003621 irrigation water Substances 0.000 description 1
- 239000011565 manganese chloride Substances 0.000 description 1
- 235000002867 manganese chloride Nutrition 0.000 description 1
- 229940099607 manganese chloride Drugs 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009865 steel metallurgy Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
本发明属于河流水体污染治理技术领域，特别涉及一种多元复合絮凝沉降剂及多元复合絮凝沉降剂在砷污染水体治理中的应用。本发明的多元复合絮凝沉降剂是由铁盐、铝盐、高锰酸盐以及聚丙烯酰胺和水溶液进行复配得到的。本发明的多元复合絮凝沉降剂能够应用于被砷污染的水体治理中，去除被砷污染水体中的砷，处理后的水中砷浓度可以满足或优于国家地表水环境质量标准中三类水体对砷浓度的规定要求(＜0.05mg/L)。也可用于沉降去除水中的铜、铬、镉、铅等重金属和金属铁、金属锰、磷酸盐等污染物。本发明的多元复合絮凝沉降剂也能够与多元复合金属氧化物除砷沉降剂联合应用于不流动或流动的砷污染水体治理，去除被砷污染水体中的砷。The invention belongs to the technical field of river water pollution treatment, and in particular relates to a multi-component composite flocculation-sedimentation agent and the application of the multi-component composite flocculation-settling agent in the treatment of arsenic-polluted water bodies. The multi-component composite flocculation-settling agent of the invention is obtained by compounding iron salt, aluminum salt, permanganate, polyacrylamide and aqueous solution. The multi-component composite flocculation-sedimentation agent of the present invention can be applied to the treatment of arsenic-polluted water bodies to remove arsenic in arsenic-polluted water bodies, and the arsenic concentration in the treated water can meet or be better than that of the three types of water bodies in the national surface water environmental quality standard. Arsenic concentration requirements (<0.05mg/L). It can also be used for sedimentation to remove copper, chromium, cadmium, lead and other heavy metals and pollutants such as metal iron, metal manganese and phosphate in water. The multi-element composite flocculation-sedimentation agent of the present invention can also be combined with the multi-element composite metal oxide arsenic-removing sedimentation agent to be used in the treatment of stagnant or flowing arsenic-polluted water bodies to remove arsenic in arsenic-polluted water bodies.
Description
Technical field
The invention belongs to river water Pollution abatement technical field, the application in arsenic polluted water body is administered of particularly a kind of multicomponent composite flocculating setting agent and multicomponent composite flocculating setting agent.
Background technology
The arsenic-containing waste water that Industrial processes such as chemical, iron and steel metallurgy, energy minerals produce is the important source of pollution of water body environment pollution; If get in the environment and possibly cause severe contamination to water body environments such as river, lake, reservoirs without dealing carefully with; And jeopardize the safety of littoral drinking water source and water quality, tap water is caused major hidden danger.Especially discharge the water body arsenic contamination incident that causes at short notice for some high loading arsenic-containing waste water, more likely since characteristics such as its pollution load is high, pollution intensity the is big and downstream lives of the people, fish production, social stability etc. are caused have a strong impact on.China is frequent in recent years takes place owing to arsenic-containing waste water discharges the environmental pollution incident that causes.For example, in April, 2006, Xin Qiang river arsenic contamination incident takes place in yueyang, hunan; 2008, arsenic contamination incidents such as Yunnan Yang Zonghai, Guangxi Hechi, Shangqiu, Henan took place in succession.
For the risk of controlling arsenic contamination and human body, aquatic animals and plants and ecology being caused, China has carried out strict regulation to arsenic concentration limit value in the different water body environments.The existing drinking water standard of country (GB5749-2006) clearly in the regulation tap water arsenic peak concentration must be lower than 0.10mg/L; Require in the water environment quality standard that arsenic concentration should be lower than 0.05mg/L in four types and the above water body; Regulation drains into that arsenic concentration should be lower than 0.50mg/L in the trade effluent in the water body in the industrial wastewater discharge standard.In addition, also clearly define for the concentration of arsenic in the systems such as soil, agricultural irrigation water, food.
The removal technology of arsenic mainly comprises absorption, flocculation-deposition-filtration, flocculation-direct filtration, electrodialysis, IX, membrane sepn etc. in the water.For removing arsenic adsorbent material, common arsenic removal material mainly contains materials such as gac, activated alumina, red mud, clinoptilolite, modified activated carbon, hydrous iron oxide,
manganese sand, hydrated manganese oxide compound, iron-managanese compounded oxide/diatomite.Though the above-mentioned sorbing material that is used for removing tap water arsenic has the ability of arsenic-adsorbing; But often have that the equilibrium adsorption capacity is low excessively, settling velocity is too fast, the absorption reaction deficiency of time, lack suitable problems such as environmental hydraulics condition such as mixing, thereby be difficult to have tangible effect of removing arsenic.The iron-managanese compounded oxide/diatomite of the applicant's early development removes arsenic adsorbent material (CN2006100081358); Effectively improved the kinetic reaction speed of material loading capacity and arsenic-adsorbing thereof, removed the arsenic in the water but still be difficult to effective sedimentation owing to its sedimentation is too fast.Lee's Gui waits combined oxidation flocculation agent (CN200410058308.8) settling velocity in water of exploitation obviously to reduce in vain; But very high to the HYDRODYNAMIC CONDITION RELATING TO requirement that mixes, reacts in the arsenic removal process, be difficult to be applied to water body arsenic contaminations such as huge lake, reservoir, river and administer.In addition, people such as Cai Yaqi has invented ferric oxide-alumina composite nano materials (CN200710118307.1).This material can effectively be removed pollutent such as arsenic, fluorine in the water, but material preparation process is complicated, and cost is expensive, is difficult to large-scale application in engineering reality.
For the removal of arsenic in the tap water, often the particulate form sorbing material is seated in the adsorption column, arsenic-containing water is flowed through, and the arsenic contamination thing is able to remove from aqueous phase absorption in the adsorption column process; Removal technology for arsenic in the impounded bodies such as lake, reservoir rarely has report both at home and abroad up to now.The multiple element composite metal oxidate arsenic removal settling agent of the applicant's early development (CN200810266740.1) is settled down to lakebed through absorption and the settlement action that forms sinking agent with arsenic in the water, thereby realizes the removal of arsenic in the water body.But this arsenic removal settling agent is primarily aimed at the following characteristics of impounded body arsenic contaminations such as lake, reservoir and administers: the spatial distribution of polluted water body is concentrated relatively, and arsenic removal settling agent easy to implement such as adds at engineering measure; Settling time can be in the time scale scope of a couple of days, tens of days even up to a hundred days.Adopt this arsenic removal settling agent (CN200810266740.1) can solve impounded body arsenic contamination problems such as lake, reservoir.But, for the river that suffers arsenic contamination, channel length often tens of to the several hundred kilometers scope, scope is crossed wide and is difficult to add arsenic removal settling agent; River cross-section is irregular, is difficult to carry out appropriate design and control to adding engineering process; It is often shorter relatively that the river course arsenic contamination is handled the settling time that is allowed, and often requires can accomplish in the scope in several hours to tens of hours the sedimentation of arsenic.Therefore; If adopt multiple element composite metal oxidate arsenic removal settling agent (CN200810266740.1) at above-mentioned short period scope internal adsorption the sinking agent of arsenic be difficult to abundant sedimentation and effect of removing arsenic is limited, accelerate subsidence rate and then be difficult to guarantee the absorption arsenic removal effect if form the big sinking agent of particle.Therefore, adopt above-mentioned multiple element composite metal oxidate arsenic removal settling agent and engineering scheme thereof to be difficult to effectively solve the problem that the river arsenic polluted water body is administered engineering to impounded bodies such as lake, reservoirs.
To river water topography and geomorphology characteristics and arsenic contamination characteristics; The exploitation performance efficient, with low cost, easy to use and can be in engineering the river arsenic contamination method of improvementing of large-scale application, this is a difficult point problem of needing solution in the present Research And Engineering application badly.The present invention is the basis with above-mentioned multiple element composite metal oxidate arsenic removal settling agent (CN200810266740.1); Certain hour after adding multiple element composite metal oxidate arsenic removal settling agent; Add a kind of multicomponent composite flocculating setting agent again; Thereby optimal control arsenic removal absorption and settling process realize that the absorption and the settling process of arsenic in the water is controlled, guarantee the removal of arsenic.
Summary of the invention
One of the object of the invention is to arsenic in the water bodys such as arsenic contamination thing, especially river in the water, provides that a kind of performance is efficient, economically feasible, is easy to the multicomponent composite flocculating setting agent of large-scale application in engineering.
Two of the object of the invention provides the application of multicomponent composite flocculating setting agent in arsenic polluted water body is administered, the especially application in arsenic-polluted river is administered.
Know-why of the present invention is: on the basis of multiple element composite metal oxidate arsenic removal settling agent (CN200810266740.1); Introduce a kind of can make to strengthen be adsorbed on the particulate form arsenic sedimentation on the polynary metal oxide and can fully guarantee the multicomponent composite flocculating setting agent of effect of removing arsenic, thereby guarantee on short time scale, particulate form arsenic to be settled down to the removal that arsenic is realized in the river bed.
Multicomponent composite flocculating setting agent of the present invention; Its sedimentation arsenic removal technology principle is: flocculation agent, permanganate and SEPIGEL 305 (PAM) coagulant aidss etc. such as molysite, aluminium salt are carried out composite, formation can fully be compressed arsenic PM for particulate matter surface potential, enhanced flocculation arsenic nucleus and form, promotes particulate form arsenic cohesion flocculation, strengthens the crosslinked settled arsenic removal settling agent of arsenic PM for particulate matter.In sedimentation arsenic removal process, the PM for particulate matter that has adsorbed arsenic is settled down to the river bed, thereby realizes the removal of particulate form arsenic in the water after taking off steady and being cross-linked to form macrobead under the self gravitation effect.
With the removal of multiple element composite metal oxidate arsenic removal settling agent (CN200810266740.1) and multicomponent composite flocculating setting agent combined utilization of the present invention arsenic in river water, treating water can satisfy in China's water environment quality standard three types of water bodys to the specified requirement of arsenic contamination thing (＜0.05mg/L).Multiple element composite metal oxidate arsenic removal settling agent (CN200810266740.1) and multicomponent composite flocculating setting agent combined utilization of the present invention also can effectively be removed arsenic contamination thing in the water bodys such as lake, reservoir, underground water, tap water, trade effluent; In addition, can also remove pollutents such as heavy metals such as copper in the above-mentioned water body, chromium, cadmium, lead, mercury and metallic iron, manganese metal, phosphoric acid salt.
Multicomponent composite flocculating setting agent of the present invention is to comprise coagulant aidss such as flocculation agent, permanganate and SEPIGEL 305s such as molysite, aluminium salt and water carries out the composite solution that obtains; Wherein, molysite and the total concn scope of aluminium salt of multicomponent composite flocculating setting agent in processed water is between 2～400mg/L, and the molar ratio range of molysite and aluminium salt is 0.01～20: between 1; Permanganate be molysite and aluminium salt gross weight 0.025%～80% between; SEPIGEL 305 be molysite and aluminium salt gross weight 0～40% between.
Can also further contain mass ratio with aluminium salt or molysite in the above-mentioned multicomponent composite flocculating setting agent and be at least a in the group that components such as 0～0.2: 1 water glass, sodium polysilicate, sodium phosphate, sodium polyphosphate, sodium-alginate, chitosan, starch, FM form.
Described molysite is selected from least a in the group that iron(ic)chloride, ferric sulfate, iron nitrate, poly-ferric chloride, bodied ferric sulfate, polymerization iron nitrate, PAFS etc. are formed.
Described aluminium salt is selected from least a in the group that Tai-Ace S 150, aluminum chloride, polyaluminium sulfate, Poly aluminum Chloride (PAC), aluminum nitrate, polymerization aluminum nitrate, alum, PAFS etc. are formed.
Described permanganate is potassium permanganate, sodium permanganate or their mixture etc.
The preparation method of multicomponent composite flocculating setting agent of the present invention: with molysite, aluminium salt, permanganate and SEPIGEL 305 with water dissolution and fully mix after; Molysite and the total concn scope of aluminium salt directly put in the multicomponent composite flocculating setting agent that formation obtains in the processed water are between 2～400mg/L, and the molar ratio range of molysite and aluminium salt is 0.01～20: between 1; Permanganate be molysite and aluminium salt gross weight 0.025%～80% between; SEPIGEL 305 be molysite and aluminium salt gross weight 0～40% between.
In the process of the above-mentioned multicomponent composite flocculating setting agent of preparation, can also further add the mass ratio that contains with aluminium salt or molysite and be at least a in the group that components such as 0～0.2: 1 water glass, sodium polysilicate, sodium phosphate, sodium polyphosphate, sodium-alginate, chitosan, starch, FM form.
Multicomponent composite flocculating setting agent of the present invention can be applied to by in the water body treating of arsenic contamination, removes by the arsenic in the arsenic polluted water body.Treating water can satisfy in China's water environment quality standard three types of water bodys to the specified requirement of arsenic contamination thing (＜0.05mg/L).
Described multicomponent composite flocculating setting agent is applied to by in the water body treating of arsenic contamination; Removal is by the arsenic in the arsenic polluted water body; Be that multicomponent composite flocculating setting agent is evenly sprayed on the water surface of arsenic polluted water body, and quiescent setting 24～72 hours, obtain the water after the arsenic removal; The throwing weight range of multicomponent composite flocculating setting agent in water is between 2～500mg/L.
Molysite and the total concn scope of aluminium salt of multicomponent composite flocculating setting agent in processed water is between 2～400mg/L, and the molar ratio range of molysite and aluminium salt is 0.01～20: between 1; Permanganate be molysite and aluminium salt gross weight 0.025%～80% between; SEPIGEL 305 be molysite and aluminium salt gross weight 0～40% between.
When multicomponent composite flocculating setting agent of the present invention and multiple element composite metal oxidate arsenic removal settling agent (CN200810266740.1) combined utilization is administered in not mobile or mobile arsenic polluted water body; Can reach better effect of removing arsenic, treating water can satisfy in China's water environment quality standard three types of water bodys to the specified requirement of arsenic contamination thing (＜0.05mg/L).
When multicomponent composite flocculating setting agent of the present invention and multiple element composite metal oxidate arsenic removal settling agent (CN200810266740.1) combined utilization is administered in immobilising arsenic polluted water body:
Multiple element composite metal oxidate arsenic removal settling agent (CN200810266740.1) is evenly sprayed on the water surface of arsenic polluted water body; After the arrest reaction deposition 2～72 hours; Multicomponent composite flocculating setting agent of the present invention is evenly sprayed on the water surface of arsenic polluted water body; And quiescent setting 24～72 hours, obtain the water after the arsenic removal; Wherein, the throwing weight range of multiple element composite metal oxidate arsenic removal settling agent in water is between 1～125mg/L, and the throwing weight range of multicomponent composite flocculating setting agent in water is between 2～500mg/L; Or
Earlier multiple element composite metal oxidate arsenic removal settling agent (CN200810266740.1) is joined in the arsenic polluted water body stir afterreaction 0～48 hour of thorough mixing; Add multicomponent composite flocculating setting agent of the present invention afterwards, thorough mixing evenly stirred 1～15 minute once more, and quiescent settling 2～72 hours obtains the water after the arsenic removal; Wherein, the throwing weight range of multiple element composite metal oxidate arsenic removal settling agent in water is between 1～125mg/L, and the throwing weight range of multicomponent composite flocculating setting agent in water is between 2～500mg/L.
Molysite and the total concn scope of aluminium salt of multicomponent composite flocculating setting agent in processed water is between 2～400mg/L, and the molar ratio range of molysite and aluminium salt is 0.01～20: between 1; Permanganate be molysite and aluminium salt gross weight 0.025%～80% between; SEPIGEL 305 be molysite and aluminium salt gross weight 0～40% between.
Multicomponent composite flocculating setting agent of the present invention and multiple element composite metal oxidate arsenic removal settling agent (CN200810266740.1) combined utilization is when the mobile arsenic polluted water body is administered:
(1) suffers the current downstream of arsenic contamination at mobile, utilize the interception dam that the current interception is lived to let out under the current of avoiding receiving arsenic contamination; In the water of interception front, dam, pontoon pump or U trap are set;
(2) will tackle current that the upper reaches, dam do not receive arsenic contamination and the Zhi Liushui that possibly import these current that receive arsenic contamination and stop, and avoid not receiving the current of arsenic contamination to get into and suffer in the water of arsenic contamination with the interception dam;
(3) by the upper reaches of the water that suffers arsenic contamination of the described interception of step (1) dam interception, the length that is provided for adding multiple element composite metal oxidate arsenic removal settling agent is the same with the width of water stream channel has the porous pipe; In the downstream that add the multiple element composite metal oxidate arsenic removal settling agent place, the length that is provided for adding multicomponent composite flocculating setting agent is the same with the width of water stream channel has the porous pipe; And the distance that adds the multiple element composite metal oxidate arsenic removal settling agent place and add between the multicomponent composite flocculating setting agent place is (if the available water capacity of water stream channel is 0 with the ratio of handling the water yield every day, to represent that then arsenic removal settling agent and flocculating setting agent add in same point) between 0: 1～4: 1 for the ratio scope of the available water capacity of the water stream channel between the two and the volume of handling the water yield every day; The distance that adds between the described interception of multicomponent composite flocculating setting agent place and step (1) dam is between 1: 10～10: 1 for the ratio scope of the available water capacity of water stream channel between the two and the volume of handling the water yield every day; 0.5～10 meter and/or 0.5～10 meter, rear of adding the multicomponent composite flocculating setting agent place are provided with aerating apparatus or whipping appts at the rear that adds the multiple element composite metal oxidate arsenic removal settling agent place;
(4) the even spraying step (3) setting of multiple element composite metal oxidate arsenic removal settling agent added on the water surface that has the described interception of porous pipe place to step (1) Ba Chu of multiple element composite metal oxidate arsenic removal settling agent; After the arrest reaction deposition 2～72 hours; And then on this water surface, evenly spray multicomponent composite flocculating setting agent of the present invention; And quiescent setting 24～72 hours, the water after this waters obtains arsenic removal; Wherein, the throwing weight range of multiple element composite metal oxidate arsenic removal settling agent in water is between 1～125mg/L, and the throwing weight range of multicomponent composite flocculating setting agent in water is between 2～500mg/L;
Molysite and the total concn scope of aluminium salt of multicomponent composite flocculating setting agent in processed water is between 2～400mg/L, and the molar ratio range of molysite and aluminium salt is 0.01～20: between 1; Permanganate be molysite and aluminium salt gross weight 0.025%～80% between; SEPIGEL 305 be molysite and aluminium salt gross weight 0～40% between;
Let out to downstream under the upper water overflow of the water after utilizing pontoon pump or U trap with the above-mentioned arsenic removal that obtains then; The upper reaches, the place ahead arsenic-containing water that has porous pipe place that adds multiple element composite metal oxidate arsenic removal settling agent is set this moment; Under action of gravity, flow through in order add multiple element composite metal oxidate arsenic removal settling agent have a porous pipe place, and flow through add multicomponent composite flocculating setting agent have a porous pipe place; Flow through when two places have the porous pipe at arsenic-containing water; Multiple element composite metal oxidate arsenic removal settling agent and multicomponent composite flocculating setting agent add in the water body that gets into continuous flow through the porous pipe that has separately; And stir the arsenic removal of carrying out water body under the situation of water body at aerating apparatus or whipping appts; Realization contains the continuous processing of arsenic current water, until the arsenic-containing water body between step (1) described interception dam and the described interception of step (2) dam is disposed; Wherein, the throwing weight range of multiple element composite metal oxidate arsenic removal settling agent in water is between 1～125mg/L, and the throwing weight range of multicomponent composite flocculating setting agent in water is between 2～500mg/L;
Molysite and the total concn scope of aluminium salt of multicomponent composite flocculating setting agent in processed water is between 2～400mg/L, and the molar ratio range of molysite and aluminium salt is 0.01～20: between 1; Permanganate be molysite and aluminium salt gross weight 0.025%～80% between; SEPIGEL 305 be molysite and aluminium salt gross weight 0～40% between.
The mobile water body that adopts aforesaid method to carry out arsenic contamination is handled, in the water after the processing arsenic concentration can satisfy or be superior in the national water environment quality standard three types of water bodys to the specified requirement of arsenic concentration (＜0.05mg/L).
Described band foraminous pipe is more than one.
Described multiple element composite metal oxidate arsenic removal settling agent (CN200810266740.1) is to be prepared from through chemical reaction iron salt solutions, aluminum salt solution, ferrous salt solution, manganese salt solution, permanganate solution.The composite component of multiple element composite metal oxidate arsenic removal settling agent comprises ferric hydrous oxide (Fe
2O
3XH
2O), hydronium(ion) oxidation iron (Fe (OH)
3XH
2O), hydration hydroxyl hydrogen red stone (FeOOHxH
2O), hydrated aluminum oxide compound (Al
2O
3XH
2O), hydration aluminum oxyhydroxide (AlOOHxH
2O), W 4600 (Al (OH)
3XH
2O), hydrated manganese oxide compound (MnO
2XH
2O) and hydration hydroxyl hydrogen manganese oxide (MnOOHxH
2O) etc., wherein: X is the number of water molecules; Iron, manganese, the aluminium element molar ratio range between the two arbitrarily are 6: 1～1: 6.
In above-mentioned multiple element composite metal oxidate arsenic removal settling agent, can also further contain mass ratio with aluminium salt, molysite or manganese salt and be at least a in the group that 0～0.1: 1 water glass, sodium polysilicate, sodium polyphosphate, sodium-alginate, chitosan, starch, SEPIGEL 305 components such as (PAM) form.
In above-mentioned multiple element composite metal oxidate arsenic removal settling agent, can also further contain mass ratio with aluminium salt, molysite or manganese salt and be at least a in the group that components such as zeyssatite below 100 orders of 0～2000: 1 grain diameter, kaolin, red soil, flyash, red mud, clay form.
In above-mentioned multiple element composite metal oxidate arsenic removal settling agent, can also further contain mass ratio with aluminium salt, molysite or manganese salt and be at least a in the group that 0～0.1: 1 water glass, sodium polysilicate, sodium polyphosphate, sodium-alginate, chitosan, starch, SEPIGEL 305 form, with the mass ratio that contains aluminium salt, molysite or manganese salt be at least a at least a group of forming in the group formed of 0～2000: 1 zeyssatite, kaolin, red soil, flyash, red mud, the clay of grain diameter below 100 orders.
The preparation method of the multiple element composite metal oxidate arsenic removal settling agent among the present invention (CN200810266740.1) is:
(1) with iron salt solutions, aluminum salt solution, ferrous salt solution, manganese salt solution mixing acquisition mixed liquor A, with permanganate solution as solution B; Or
Aluminum salt solution, ferrous salt solution, manganese salt solution are mixed acquisition mixed solution C, iron salt solutions, permanganate solution are mixed obtaining mixed solution D; Or
Iron salt solutions, ferrous salt solution, manganese salt solution are mixed acquisition mixed solution E, aluminum salt solution, permanganate solution are mixed obtaining mixed solution F; Or
Aluminum salt solution, ferrous salt solution are mixed acquisition mixed solution G, iron salt solutions, permanganate solution are mixed obtaining mixed solution H; Or
With iron salt solutions, ferrous salt solution mixing acquisition mixed liquor I, aluminum salt solution, permanganate solution are mixed acquisition mixed solution J; Or
Ferrous salt solution, manganese salt solution as solution K, are mixed acquisition mixed solution L with aluminum salt solution, iron salt solutions, permanganate solution;
Ferrous salt solution as solution M, is mixed acquisition mixed solution N with aluminum salt solution, iron salt solutions, permanganate solution;
Manganese salt solution as solution O, is mixed acquisition mixed solution P with aluminum salt solution, iron salt solutions, permanganate solution;
(2) mixed liquor A that step (1) is obtained and solution B fully mix carries out chemical reaction; Wherein mixing reaction time range is 10 minutes～6 hours, and the iron in the multiple element composite metal oxidate arsenic removal settling agent that obtains, manganese, the aluminium element molar ratio range between the two arbitrarily are 6: 1～1: 6; Or
Mixed solution C and mixed solution D fully mixed carry out chemical reaction; Wherein mixing reaction time range is 10 minutes～6 hours, and the iron in the multiple element composite metal oxidate arsenic removal settling agent that obtains, manganese, the aluminium element molar ratio range between the two arbitrarily are 6: 1～1: 6; Or
Mixed solution E and mixed solution F fully mixed carry out chemical reaction; Wherein mixing reaction time range is 10 minutes～6 hours, and the iron in the multiple element composite metal oxidate arsenic removal settling agent that obtains, manganese, the aluminium element molar ratio range between the two arbitrarily are 6: 1～1: 6; Or
Solution G and mixed solution H fully mixed carry out chemical reaction; Wherein mixing reaction time range is 10 minutes～6 hours, and the iron in the multiple element composite metal oxidate arsenic removal settling agent that obtains, manganese, the aluminium element molar ratio range between the two arbitrarily are 6: 1～1: 6; Or
Mixed liquor I and mixed solution J fully mixed carry out chemical reaction; Wherein mixing reaction time range is 10 minutes～6 hours, and the iron in the multiple element composite metal oxidate arsenic removal settling agent that obtains, manganese, the aluminium element molar ratio range between the two arbitrarily are 6: 1～1: 6; Or
Mixed solution K and mixed solution L fully mixed carry out chemical reaction; Wherein mixing reaction time range is 10 minutes～6 hours, and the iron in the multiple element composite metal oxidate arsenic removal settling agent that obtains, manganese, the aluminium element molar ratio range between the two arbitrarily are 6: 1～1: 6; Or
Mixed solution M and mixed solution N fully mixed carry out chemical reaction; Wherein mixing reaction time range is 10 minutes～6 hours, and the iron in the multiple element composite metal oxidate arsenic removal settling agent that obtains, manganese, the aluminium element molar ratio range between the two arbitrarily are 6: 1～1: 6; Or
Mixed solution O and mixed solution P fully mixed carry out chemical reaction; Wherein mixing reaction time range is 10 minutes～6 hours, and the iron in the multiple element composite metal oxidate arsenic removal settling agent that obtains, manganese, the aluminium element molar ratio range between the two arbitrarily are 6: 1～1: 6.
In the process of the above-mentioned multiple element composite metal oxidate arsenic removal settling agent of preparation, can also further add the mass ratio that contains with aluminium salt, molysite or manganese salt and be at least a in the group that components such as 0～0.1: 1 water glass, sodium polysilicate, sodium polyphosphate, sodium-alginate, chitosan, starch, SEPIGEL 305 form; Or
Further add the mass ratio that contains with aluminium salt, molysite or manganese salt and be at least a in the group that components such as zeyssatite below 100 orders of 0～2000: 1 grain diameter, kaolin, red soil, flyash, red mud, clay form; Or
Further add the mass ratio that contains with aluminium salt, molysite or manganese salt and be at least a in the group that components such as 0～0.1: 1 water glass, sodium polysilicate, sodium polyphosphate, sodium-alginate, chitosan, starch, SEPIGEL 305 form, with the mass ratio that contains aluminium salt, molysite or manganese salt be at least a at least a group of forming in the group formed of components such as zeyssatite below 100 orders of 0～2000: 1 grain diameter, kaolin, red soil, flyash, red mud, clay.
Described molysite is selected from least a in the group that iron(ic)chloride, ferric sulfate, iron nitrate, poly-ferric chloride, bodied ferric sulfate, polymerization iron nitrate, PAFS etc. are formed.
Described aluminium salt is selected from least a in the group that Tai-Ace S 150, aluminum chloride, polyaluminium sulfate, Poly aluminum Chloride (PAC), aluminum nitrate, polymerization aluminum nitrate, alum, PAFS etc. are formed.
Described permanganate is potassium permanganate, sodium permanganate or their mixture.
Described ferrous salt is at least a in the group formed such as ferrous sulfate, Iron nitrate, iron protochloride.
Described manganese salt is at least a in the group formed such as manganous sulfate, manganous nitrate, Manganous chloride tetrahydrate.
The technique effect that the present invention realizes is following:
Multicomponent composite flocculating setting agent that the present invention relates to and multiple element composite metal oxidate arsenic removal settling agent all adopt common common water treatment agent and/or material prepn to form, and the preparation method is simple, and is with low cost, uses easy and simple to handle; The two unites the improvement that use can realize arsenic-polluted river more effectively.
1. multicomponent composite flocculating setting agent preparation manipulation process is simple, is easy to realize; The material that is adopted is water purification medicament or water-purifying material commonly used in the water treatment, and is with low cost;
2. the application mode of multicomponent composite flocculating setting agent is flexible, both can be used for the not processing of mobile arsenic-containing water body, also can be used for the processing of mobile arsenic-containing water body;
3. the above-mentioned water body treating method that contains arsenic contamination to not flowing or flowing is simple, and as to containing the river improvement of arsenic contamination, its engineering construction is simple, and operating process is simple and easy, short instant effect of duration;
4. above-mentionedly contain the water body treatment process of arsenic contamination to not flowing or flowing, treating water is satisfied or be superior in the national water environment quality standard three types of water bodys to the specified requirement of arsenic concentration (＜0.05mg/L);
5. the improvement method of above-mentioned multicomponent composite flocculating setting agent and the water body that contains arsenic contamination to not flowing or flowing can also be used for removing water body arsenic contamination things such as lake, reservoir, underground water, tap water, trade effluent;
6. above-mentioned multicomponent composite flocculating setting agent and contain the water body treating method of arsenic contamination to not flowing or flowing can also be used for sedimentation and remove pollutents such as heavy metal such as the copper of water, chromium, cadmium, lead and iron, manganese, phosphoric acid salt.
Embodiment
Embodiment 1
Multicomponent composite flocculating setting agent preparation: iron trichloride, aluminum chloride, potassium permanganate joined simultaneously in the lixator that water is housed fully stirring and dissolving, make that the concentration of aluminium salt and molysite is 2g/L in the water, the concentration of potassium permanganate is 0.02g/L.
The mixed aqueous solution (iron trichloride, aluminum chloride, the ferrous sulfate concentration in mixed aqueous solution is 2g/L) that multiple element composite metal oxidate arsenic removal settling agent is made up of the aqueous solution of the aqueous solution of the aqueous solution of iron trichloride, aluminum chloride, ferrous sulfate mixes stirring reaction with potassium permanganate solution (concentration of potassium permanganate is 1g/L) and prepared in 10 minutes; The composite component of multiple element composite metal oxidate arsenic removal settling agent comprises ferric hydrous oxide, hydronium(ion) oxidation iron, hydration hydroxyl hydrogen red stone, hydrated aluminum oxide compound, hydration aluminum oxyhydroxide, W 4600, hydrated manganese oxide compound and hydration hydroxyl hydrogen manganese oxide etc., and wherein: ferro element: manganese element: the mol ratio of aluminium element is 5: 1: 2.
Be applied to the arsenic contamination lake cleaning: arsenic concentration is 0.20mg/L in the arsenic polluted water body.At first, the even spraying of multiple element composite metal oxidate arsenic removal settling agent suffered on the water surface to be clean of arsenic contamination, the throwing amount of multiple element composite metal oxidate arsenic removal settling agent is 100mg/L, arrest reaction deposition 2 hours; Afterwards multicomponent composite flocculating setting agent is evenly sprayed and be deposited on the water surface; The iron trichloride in the multicomponent composite flocculating setting agent that formation obtains in processed water and the total concn of aluminum chloride are 20mg/L, and the mol ratio of iron trichloride and aluminum chloride is 0.82: 1; Potassium permanganate is 1% of iron trichloride and aluminum chloride gross weight.Added behind the multicomponent composite flocculating setting agent quiescent setting 24 hours, handle arsenic concentration in the water of back reach three types of water bodys of national water environment quality standard to the requirement of arsenic concentration (＜0.05mg/L).
Embodiment 2
Multicomponent composite flocculating setting agent preparation: aluminum chloride, iron nitrate and alum are joined abundant stirring and dissolving in the lixator that water is housed simultaneously, make that the aluminium salt concn is 20g/L in the water, iron salt concentration is 0.2g/L, and potassium permanganate concentration is 0.05g/L.
Being applied to the arsenic contamination reservoir purifies: arsenic concentration is 0.10mg/L in the arsenic polluted water body.Multicomponent composite flocculating setting agent evenly sprays and is deposited on the water surface, and the iron trichloride in the multicomponent composite flocculating setting agent that formation obtains in processed water and the total concn of aluminum chloride are 2mg/L, and the mol ratio of iron trichloride and aluminum chloride is 0.82%: 1; Potassium permanganate is 2.5% of iron trichloride and aluminum chloride gross weight.Added behind the multicomponent composite flocculating setting agent quiescent setting 48 hours, handle arsenic concentration in the water of back reach three types of water bodys of national water environment quality standard to the requirement of arsenic concentration (＜0.05mg/L).
Embodiment 3
Multicomponent composite flocculating setting agent preparation: aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate, PAFS, potassium permanganate, SEPIGEL 305 are joined simultaneously abundant stirring and dissolving in the lixator that water is housed; Make that the aluminium salt concn is 3000g/L in the water; Iron salt concentration is 1000g/L; Potassium permanganate concentration is 10g/L, and concentration of polyacrylamide is 0.2g/L.
Multiple element composite metal oxidate arsenic removal settling agent was prepared by the aqueous solution of the aqueous solution of aluminum chloride, ferrous sulfate mixed aqueous solution of forming (aluminum chloride, the ferrous sulfate concentration in mixed aqueous solution is 2g/L) and mixed aqueous solution (concentration of iron trichloride in mixed aqueous solution is 2g/L, the concentration 1g/L of potassium permanganate in mixed aqueous solution) the mixing stirring reaction of being made up of ferric chloride aqueous solutions, potassium permanganate solution in 6 hours; The composite component of multiple element composite metal oxidate arsenic removal settling agent comprises ferric hydrous oxide, hydronium(ion) oxidation iron, hydration hydroxyl hydrogen red stone, hydrated aluminum oxide compound, hydration aluminum oxyhydroxide, W 4600, hydrated manganese oxide compound and hydration hydroxyl hydrogen manganese oxide etc., and wherein: ferro element: manganese element: the mol ratio of aluminium element is 4: 1: 2.
Be applied to the arsenic contamination lake cleaning: arsenic concentration is 1.50mg/L in the arsenic polluted water body.At first even spraying of multiple element composite metal oxidate arsenic removal settling agent suffered on the water surface to be clean of arsenic contamination, the throwing amount of multiple element composite metal oxidate arsenic removal settling agent is 200mg/L, arrest reaction deposition 72 hours; Afterwards multicomponent composite flocculating setting agent is evenly sprayed and be deposited on the water surface; The total concn that in processed water, forms aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and PAFS in the multicomponent composite flocculating setting agent that obtains is 500mg/L, and the mol ratio of the aluminium element in ferro element in bodied ferric sulfate and the PAFS and aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate and the PAFS is 0.27: 1; Potassium permanganate be in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the PAFS ferro element and aluminium element gross weight 0.25%, SEPIGEL 305 be in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the PAFS ferro element and aluminium element gross weight 0.05%.Added behind the multicomponent composite flocculating setting agent quiescent setting 72 hours, handle arsenic concentration in the water of back reach three types of water bodys of national water environment quality standard to the requirement of arsenic concentration (＜0.05mg/L).
Embodiment 4
Multicomponent composite flocculating setting agent preparation: aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, water glass, sodium polysilicate, bodied ferric sulfate, PAFS, potassium permanganate, SEPIGEL 305 are joined simultaneously abundant stirring and dissolving in the lixator that water is housed; Make that the aluminium salt concn is 3000g/L in the water; Iron salt concentration is 1000g/L; Potassium permanganate concentration is 100g/L; Concentration of polyacrylamide is 0.2g/L, and water glass and sodium polysilicate concentration are 100g/L.
The mixed aqueous solution (iron trichloride, aluminum chloride, ferrous sulfate, the Manganous chloride tetrahydrate concentration in mixed aqueous solution is 2g/L) that multiple element composite metal oxidate arsenic removal settling agent is made up of the aqueous solution of the aqueous solution of the aqueous solution of the aqueous solution of iron trichloride, aluminum chloride, ferrous sulfate, Manganous chloride tetrahydrate mixes stirring reaction with aqueous sodium permanganate solution (concentration of aqueous solution of sodium permanganate is 1g/L) and prepared in 2 hours; The composite component of multiple element composite metal oxidate arsenic removal settling agent comprises ferric hydrous oxide, hydronium(ion) oxidation iron, hydration hydroxyl hydrogen red stone, hydrated aluminum oxide compound, hydration aluminum oxyhydroxide, W 4600, hydrated manganese oxide compound and hydration hydroxyl hydrogen manganese oxide etc., and wherein: ferro element: manganese element: the mol ratio of aluminium element is 2: 2: 1.
Be applied to the arsenic contamination lake cleaning: arsenic concentration is 1.50mg/L in the arsenic polluted water body.At first, the even spraying of multiple element composite metal oxidate arsenic removal settling agent suffered on the water surface to be clean of arsenic contamination, multiple element composite metal oxidate arsenic removal settling agent throwing amount is 250mg/L, arrest reaction deposition 48 hours; Afterwards multicomponent composite flocculating setting agent is evenly sprayed and be deposited on the water surface; The total concn that in processed water, forms aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and PAFS in the multicomponent composite flocculating setting agent that obtains is 40mg/L, and the mol ratio of the aluminium element in ferro element in bodied ferric sulfate and the PAFS and aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate and the PAFS is 0.27: 1; Potassium permanganate be in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the PAFS ferro element and aluminium element gross weight 2.5%; SEPIGEL 305 be in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the PAFS ferro element and aluminium element gross weight 0.05%, water glass and sodium polysilicate be in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the PAFS ferro element and aluminium element gross weight 2.5%.Added behind the multicomponent composite flocculating setting agent quiescent setting 72 hours, handle arsenic concentration in the water of back reach three types of water bodys of national water environment quality standard to the requirement of arsenic concentration (＜0.05mg/L).
Embodiment 5
Multicomponent composite flocculating setting agent preparation: aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate, PAFS, potassium permanganate, SEPIGEL 305, sodium-alginate, chitosan, starch are joined simultaneously abundant stirring and dissolving in the lixator that water is housed; Make that the aluminium salt concn is 3000g/L in the water; Iron salt concentration is 1000g/L; Potassium permanganate concentration is 0.1g/L; Concentration of polyacrylamide is 0.2g/L, and sodium alginate concentration is 50g/L, and chitosan and starch concentration are respectively 10g/L.
Multiple element composite metal oxidate arsenic removal settling agent by the aqueous solution of the aqueous solution of the aqueous solution of the aqueous solution of the aqueous solution of the aqueous solution of the aqueous solution of iron trichloride, ferric sulfate, iron nitrate, aluminum chloride, aqueous solution of aluminum nitrate, Tai-Ace S 150, ferrous sulfate, Manganous chloride tetrahydrate, mixed aqueous solution (iron trichloride, ferric sulfate, iron nitrate, aluminum chloride, aluminum nitrate, Tai-Ace S 150, ferrous sulfate, Manganous chloride tetrahydrate, the manganous sulfate concentration in mixed aqueous solution is 2g/L) that manganese sulfate solution is formed with prepared in 3 hours by the aqueous solution of the aqueous solution of the aqueous solution of potassium permanganate, Poly aluminum Chloride (PAC), bodied ferric sulfate, mixed aqueous solution (the potassium permanganate concentration in mixed aqueous solution is 5g/L, and the concentration of Poly aluminum Chloride (PAC), bodied ferric sulfate, polymerization iron nitrate is 1g/L) mixing stirring reaction that the polymerization iron nitrate solution is formed; The composite component of multiple element composite metal oxidate arsenic removal settling agent comprises ferric hydrous oxide, hydronium(ion) oxidation iron, hydration hydroxyl hydrogen red stone, hydrated aluminum oxide compound, hydration aluminum oxyhydroxide, W 4600, hydrated manganese oxide compound and hydration hydroxyl hydrogen manganese oxide etc., and wherein: ferro element: manganese element: the mol ratio of aluminium element is 3: 6: 1.
Be applied to the arsenic contamination lake cleaning: arsenic concentration is 1.50mg/L in the arsenic polluted water body.At first, the even spraying of multiple element composite metal oxidate arsenic removal settling agent suffered on the water surface to be clean of arsenic contamination, multiple element composite metal oxidate arsenic removal settling agent throwing amount is 250mg/L, arrest reaction deposition 48 hours; Afterwards multicomponent composite flocculating setting agent is evenly sprayed and be deposited on the water surface; The total concn that in processed water, forms aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and PAFS in the multicomponent composite flocculating setting agent that obtains is 40mg/L, and the mol ratio of the aluminium element in ferro element in bodied ferric sulfate and the PAFS and aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate and the PAFS is 0.27: 1; Potassium permanganate be in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the PAFS ferro element and aluminium element gross weight 0.0025%; SEPIGEL 305 be in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the PAFS ferro element and aluminium element gross weight 0.05%; Sodium alginate concentration be in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the PAFS ferro element and aluminium element gross weight 1.25%, chitosan and starch concentration be in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the PAFS ferro element and aluminium element gross weight 0.25%.Added behind the multicomponent composite flocculating setting agent quiescent setting 72 hours, handle arsenic concentration in the water of back reach three types of water bodys of national water environment quality standard to the requirement of arsenic concentration (＜0.05mg/L).
Embodiment 6
Multicomponent composite flocculating setting agent preparation: aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate, PAFS, potassium permanganate, SEPIGEL 305 are joined simultaneously abundant stirring and dissolving in the lixator that water is housed; Make that the aluminium salt concn is 3000g/L in the water; Iron salt concentration is 1000g/L; Potassium permanganate concentration is 0.1g/L, and concentration of polyacrylamide is 0.2g/L.
Multiple element composite metal oxidate arsenic removal settling agent was prepared with mixed aqueous solution (concentration of the iron trichloride in the mixed aqueous solution is 2g/L, and the concentration of potassium permanganate is 4g/L) the mixing stirring reaction of being made up of ferric chloride aqueous solutions, potassium permanganate solution by the aqueous solution of the aqueous solution of aluminum chloride, ferrous sulfate, the mixed aqueous solution that manganese chloride solution is formed (concentration of the aluminum chloride in the mixed aqueous solution is that the concentration of 1g/L, ferrous sulfate is that the concentration of 1g/L, Manganous chloride tetrahydrate is 2g/L) in 6 hours; The composite component of multiple element composite metal oxidate arsenic removal settling agent comprises ferric hydrous oxide, hydronium(ion) oxidation iron, hydration hydroxyl hydrogen red stone, hydrated aluminum oxide compound, hydration aluminum oxyhydroxide, W 4600, hydrated manganese oxide compound and hydration hydroxyl hydrogen manganese oxide etc., and wherein: ferro element: manganese element: the mol ratio of aluminium element is 3: 6: 1.
Be applied to the arsenic contamination lake cleaning: arsenic concentration is 1.00mg/L in the arsenic polluted water body.At first, the even spraying of multiple element composite metal oxidate arsenic removal settling agent suffered on the water surface to be clean of arsenic contamination, multiple element composite metal oxidate arsenic removal settling agent throwing amount is 100mg/L, arrest reaction deposition 36 hours; Afterwards multicomponent composite flocculating setting agent is evenly sprayed and be deposited on the water surface; The total concn that in processed water, forms aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and PAFS in the multicomponent composite flocculating setting agent that obtains is 400mg/L, and the mol ratio of the aluminium element in ferro element in bodied ferric sulfate, the PAFS and aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate and the PAFS is 0.27: 1; Potassium permanganate be in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the PAFS ferro element and aluminium element gross weight 0.0025%, SEPIGEL 305 be in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the PAFS ferro element and aluminium element gross weight 0.05%.Added behind the multicomponent composite flocculating setting agent quiescent setting 12 hours, handle arsenic concentration in the water of back reach three types of water bodys of national water environment quality standard to the requirement of arsenic concentration (＜0.05mg/L).
Embodiment 7
Multicomponent composite flocculating setting agent preparation: aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate, PAFS, potassium permanganate, SEPIGEL 305 are joined simultaneously abundant stirring and dissolving in the lixator that water is housed; Make that the aluminium salt concn is 3000g/L in the water; Iron salt concentration is 1000g/L; Potassium permanganate concentration is 0.1g/L, and concentration of polyacrylamide is 0.2g/L.
Multiple element composite metal oxidate arsenic removal settling agent mixes stirring reaction preparation in 6 hours by the aqueous solution of the aqueous solution of iron trichloride, ferrous sulfate, the mixed aqueous solution that manganese sulfate solution is formed (concentration of the iron trichloride in the mixed aqueous solution is that the concentration of 2g/L, copperas solution is that the concentration of 1g/L, manganese sulfate solution is 2g/L) and mixed aqueous solution (concentration of aluminum chloride is 15g/L, and the concentration of sodium permanganate is 3g/L) by aluminum trichloride solution, sodium permanganate and gets.The composite component of multiple element composite metal oxidate arsenic removal settling agent comprises ferric hydrous oxide, hydronium(ion) oxidation iron, hydration hydroxyl hydrogen red stone, hydrated aluminum oxide compound, hydration aluminum oxyhydroxide, W 4600, hydrated manganese oxide compound and hydration hydroxyl hydrogen manganese oxide etc., and wherein: ferro element: manganese element: the mol ratio of aluminium element is 1: 2: 6.
Be applied to the arsenic contamination lake cleaning: arsenic concentration is 0.50mg/L in the arsenic polluted water body.At first, the even spraying of multiple element composite metal oxidate arsenic removal settling agent suffered on the water surface to be clean of arsenic contamination, multiple element composite metal oxidate arsenic removal settling agent throwing amount is 50mg/L, arrest reaction deposition 12 hours; Afterwards multicomponent composite flocculating setting agent is evenly sprayed and be deposited on the water surface; The total concn that in processed water, forms aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and PAFS in the multicomponent composite flocculating setting agent that obtains is 200mg/L, and the mol ratio of the aluminium element in ferro element in bodied ferric sulfate and the PAFS and aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate and the PAFS is 0.27: 1; Potassium permanganate be in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the PAFS ferro element and aluminium element gross weight 0.0025%, SEPIGEL 305 be in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the PAFS ferro element and aluminium element gross weight 0.05%.Added behind the multicomponent composite flocculating setting agent quiescent setting 72 hours, handle arsenic concentration in the water of back reach three types of water bodys of national water environment quality standard to the requirement of arsenic concentration (＜0.05mg/L).
Embodiment 8
Multicomponent composite flocculating setting agent preparation: aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate, PAFS, potassium permanganate, SEPIGEL 305 are joined simultaneously abundant stirring and dissolving in the lixator that water is housed; Make that the aluminium salt concn is 460g/L in the water; Iron salt concentration is 40g/L; Potassium permanganate concentration is 0.5g/L, and concentration of polyacrylamide is 2g/L.
Multiple element composite metal oxidate arsenic removal settling agent mixes stirring reaction by the aqueous solution of the aqueous solution of the aqueous solution of the aqueous solution of iron trichloride, aluminum chloride, ferrous sulfate, calcium chloride, mixed aqueous solution (iron trichloride, aluminum chloride, the ferrous sulfate concentration in mixed aqueous solution is 2g/L, and calcium chloride is 0.5g/L with the concentration of magnesium chloride in mixed aqueous solution) that magnesium chloride solution is formed with potassium permanganate solution (concentration of potassium permanganate solution is 1g/L) and prepared in 30 minutes; The composite component of multiple element composite metal oxidate arsenic removal settling agent comprises ferric hydrous oxide, hydronium(ion) oxidation iron, hydration hydroxyl hydrogen red stone, hydrated aluminum oxide compound, hydration aluminum oxyhydroxide, W 4600, hydrated manganese oxide compound and hydration hydroxyl hydrogen manganese oxide etc., and wherein: ferro element: manganese element: the mol ratio of aluminium element is 3: 1: 2.
Being applied to arsenic-polluted river purifies: arsenic concentration is 1.50mg/L in the arsenic polluted water body.Administer according to following steps:
(1) suffers the current downstream of arsenic contamination at mobile, utilize the interception dam that the current interception is lived to let out under the current of avoiding receiving arsenic contamination; In the water of interception front, dam, pontoon pump or U trap are set;
(2) will tackle current that the upper reaches, dam do not receive arsenic contamination and the Zhi Liushui that possibly import these current that receive arsenic contamination and stop, and avoid not receiving the current of arsenic contamination to get into and suffer in the water of arsenic contamination with the interception dam;
(3) by the upper reaches of the water that suffers arsenic contamination of the described interception of step (1) dam interception, the length that is provided for adding multiple element composite metal oxidate arsenic removal settling agent is the same with the width of water stream channel has the porous pipe; In the downstream that add the multiple element composite metal oxidate arsenic removal settling agent place, the length that is provided for adding multicomponent composite flocculating setting agent is the same with the width of water stream channel has the porous pipe; And the distance that adds the multiple element composite metal oxidate arsenic removal settling agent place and add between the multicomponent composite flocculating setting agent place is 1: 1 for the ratio of the available water capacity of the water stream channel between the two and the volume of handling the water yield every day; The distance that adds between the described interception of multicomponent composite flocculating setting agent place and step (1) dam is 1: 1 for the ratio of the available water capacity of water stream channel between the two and the volume of handling the water yield every day; At 0.5m place, rear that adds the multiple element composite metal oxidate arsenic removal settling agent place and the 0.5m place, rear that adds the multicomponent composite flocculating setting agent place aerating apparatus is set;
(4) the even spraying step (3) setting of multiple element composite metal oxidate arsenic removal settling agent added on the water surface that has the described interception of porous pipe place to step (1) Ba Chu of multiple element composite metal oxidate arsenic removal settling agent, the throwing amount of multiple element composite metal oxidate arsenic removal settling agent in water is 100mg/L.After the arrest reaction deposition 2 hours; The even spraying of multicomponent composite flocculating setting agent is deposited on the water surface; The total concn that in processed water, forms aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and PAFS in the multicomponent composite flocculating setting agent that obtains is 100mg/L, and the mol ratio of the aluminium element in ferro element in bodied ferric sulfate and the PAFS and aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate and the PAFS is 0.07: 1; Potassium permanganate be in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the PAFS ferro element and aluminium element gross weight 0.1%, SEPIGEL 305 be in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the PAFS ferro element and aluminium element gross weight 0.4%.Added behind the multicomponent composite flocculating setting agent quiescent setting 24 hours, handle in this waters arsenic concentration in the water of back reach three types of water bodys of national water environment quality standard to the requirement of arsenic concentration (＜0.05mg/L);
Let out to downstream under the upper water overflow of the water after utilizing pontoon pump or U trap with the above-mentioned arsenic removal that obtains then; The upper reaches, the place ahead arsenic-containing water that has porous pipe place that adds multiple element composite metal oxidate arsenic removal settling agent is set this moment; Under action of gravity, flow through in order add multiple element composite metal oxidate arsenic removal settling agent have a porous pipe place, and flow through add multicomponent composite flocculating setting agent have a porous pipe place; Flow through when two places have the porous pipe at arsenic-containing water; Multiple element composite metal oxidate arsenic removal settling agent and multicomponent composite flocculating setting agent add in the water body that gets into continuous flow through the porous pipe that has separately; And stir the arsenic removal of carrying out water body under the situation of water body at aerating apparatus; Realization contains the continuous processing of arsenic current water, until the arsenic-containing water body between step (1) described interception dam and the described interception of step (2) dam is disposed.Wherein, the throwing amount of multiple element composite metal oxidate arsenic removal settling agent in water is 100mg/L, and the throwing amount of multicomponent composite flocculating setting agent in water is 100mg/L, and the composition of the multicomponent composite flocculating setting agent that formation obtains in processed water and content are with the above.
The mobile water body that adopts aforesaid method to carry out arsenic contamination is handled, in the water after the processing arsenic concentration can satisfy or be superior in the national water environment quality standard three types of water bodys to the specified requirement of arsenic concentration (＜0.05mg/L).
Embodiment 9
Multicomponent composite flocculating setting agent preparation: aluminum chloride, bodied ferric sulfate, potassium permanganate joined simultaneously in the lixator that water is housed fully stirring and dissolving, make that the aluminium salt concn is 4.6g/L in the water, iron salt concentration is 0.4g/L, and potassium permanganate concentration is 0.5g/L.
Being applied to the arsenic contamination water channel purifies: arsenic concentration is 0.2mg/L in the arsenic polluted water body.Administer according to following steps:
(1) suffers the current downstream of arsenic contamination at mobile, utilize the interception dam that the current interception is lived to let out under the current of avoiding receiving arsenic contamination; In the water of interception front, dam, pontoon pump or U trap are set;
(2) will tackle current that the upper reaches, dam do not receive arsenic contamination and the Zhi Liushui that possibly import these current that receive arsenic contamination and stop, and avoid not receiving the current of arsenic contamination to get into and suffer in the water of arsenic contamination with the interception dam;
(3) by the upper reaches of the water that suffers arsenic contamination of the described interception of step (1) dam interception, be provided for simultaneously adding multiple element composite metal oxidate arsenic removal settling agent the same with the width that adds the settled length of polynary composite flocculation arsenic removal and water stream channel have a porous pipe; Add multiple element composite metal oxidate arsenic removal settling agent and add the multicomponent composite flocculating setting agent place and the described interception of step (1) dam between distance be 10: 1 for the ratio of the useful capacity of water stream channel between the two and the volume of handling the water yield every day; With the 5m place, rear that adds the multicomponent composite flocculating setting agent place aerating apparatus or whipping appts are set all adding multiple element composite metal oxidate arsenic removal settling agent;
(4) the even spraying step (3) setting of multiple element composite metal oxidate arsenic removal settling agent added on the water surface that has the described interception of porous pipe place to step (1) Ba Chu of multiple element composite metal oxidate arsenic removal settling agent and multicomponent composite flocculating setting agent; The throwing amount of multiple element composite metal oxidate arsenic removal settling agent in water is 50mg/L, arrest reaction deposition 72 hours; Afterwards; The even spraying of multicomponent composite flocculating setting agent is deposited on the water surface; The total concn of aluminum chloride and bodied ferric sulfate is 200mg/L in the multicomponent composite flocculating setting agent that formation obtains in processed water, and the ferro element in the bodied ferric sulfate and the mol ratio of the aluminium element in the aluminum chloride are 0.87: 1; Potassium permanganate be in aluminum chloride and the bodied ferric sulfate ferro element and aluminium element gross weight 10%.Added behind the multicomponent composite flocculating setting agent quiescent setting 48 hours, handle in this waters arsenic concentration in the water of back reach three types of water bodys of national water environment quality standard to the requirement of arsenic concentration (＜0.05mg/L).
Let out to downstream under the upper water overflow of the water after utilizing pontoon pump or U trap with the above-mentioned arsenic removal that obtains then; The upper reaches, the place ahead arsenic-containing water that has porous pipe place that adds multiple element composite metal oxidate arsenic removal settling agent and multicomponent composite flocculating setting agent is set this moment; Under action of gravity, flow through add multiple element composite metal oxidate arsenic removal settling agent with add multicomponent composite flocculating setting agent have a porous pipe place; Flow through when this place has the porous pipe at arsenic-containing water; Multiple element composite metal oxidate arsenic removal settling agent and multicomponent composite flocculating setting agent add in the water body that gets into continuous flow through the porous pipe that has separately; And stir the arsenic removal of carrying out water body under the situation of water body at aerating apparatus; Realization contains the continuous processing of arsenic current water, until the arsenic-containing water body between step (1) described interception dam and the described interception of step (2) dam is disposed.Wherein, the throwing amount of multiple element composite metal oxidate arsenic removal settling agent in water is 40mg/L, and the throwing amount of multicomponent composite flocculating setting agent in water is 100mg/L, and the composition of the multicomponent composite flocculating setting agent that formation obtains in processed water and content are with the above.
The mobile water body that adopts aforesaid method to carry out arsenic contamination is handled, in the water after the processing arsenic concentration can satisfy or be superior in the national water environment quality standard three types of water bodys to the specified requirement of arsenic concentration (＜0.05mg/L).
(iron trichloride, aluminum chloride, the ferrous sulfate concentration in mixed aqueous solution is 2g/L to the mixed aqueous solution that described multiple element composite metal oxidate arsenic removal settling agent is made up of the aqueous solution of the aqueous solution of the aqueous solution of the aqueous solution of the aqueous solution of the aqueous solution of iron trichloride, aluminum chloride, ferrous sulfate, water glass, sodium polysilicate, sodium polyphosphate; Water glass, sodium polysilicate, the sodium polyphosphate concentration in mixed aqueous solution is 0.5g/L) mixed aqueous solution (the potassium permanganate concentration in the mixed solution is 1g/L, and sodium permanganate concentration is 2g/L) the mixing stirring reaction that obtains with aqueous solution by the aqueous solution of potassium permanganate and sodium permanganate prepared in 30 minutes; The composite component of multiple element composite metal oxidate arsenic removal settling agent comprises ferric hydrous oxide, hydronium(ion) oxidation iron, hydration hydroxyl hydrogen red stone, hydrated aluminum oxide compound, hydration aluminum oxyhydroxide, W 4600, hydrated manganese oxide compound and hydration hydroxyl hydrogen manganese oxide etc., and wherein: ferro element: manganese element: the mol ratio of aluminium element is 3: 3: 2.
Embodiment 10
Multicomponent composite flocculating setting agent preparation: Poly aluminum Chloride (PAC), Tai-Ace S 150, potassium permanganate, iron trichloride, SEPIGEL 305 are joined simultaneously abundant stirring and dissolving in the lixator that water is housed; Make that the aluminium salt concn is 1000g/L in the water; Iron salt concentration is 500g/L; Potassium permanganate concentration is 5g/L, and concentration of polyacrylamide is 20g/L.
Being applied to arsenic-polluted river purifies: arsenic concentration is 1.50mg/L in the arsenic polluted water body.Administer according to following steps:
(1) suffers the current downstream of arsenic contamination at mobile, utilize the interception dam that the current interception is lived to let out under the current of avoiding receiving arsenic contamination; In the water of interception front, dam, pontoon pump or U trap are set;
(2) will tackle current that the upper reaches, dam do not receive arsenic contamination and the Zhi Liushui that possibly import these current that receive arsenic contamination and stop, and avoid the water in tributary to get into and suffer in the water of arsenic contamination with the interception dam;
(3) by the upper reaches of the water that suffers arsenic contamination of the described interception of step (1) dam interception, the length that is provided for adding multiple element composite metal oxidate arsenic removal settling agent is the same with the width of water stream channel has the porous pipe; In the downstream that add the multiple element composite metal oxidate arsenic removal settling agent place, the length that is provided for adding multicomponent composite flocculating setting agent is the same with the width of water stream channel has the porous pipe; And the distance that adds the multiple element composite metal oxidate arsenic removal settling agent place and add between the multicomponent composite flocculating setting agent place is 4: 1 for the ratio scope of the useful capacity of the water stream channel between the two and the volume of handling the water yield every day; The distance that adds between the described interception of multicomponent composite flocculating setting agent place and step (1) dam is 1: 10 for the ratio scope of the useful capacity of water stream channel between the two and the volume of handling the water yield every day; At the 4m place, rear that adds the multiple element composite metal oxidate arsenic removal settling agent place and the 5m place, rear that adds the multicomponent composite flocculating setting agent place aerating apparatus or whipping appts all are set;
(4) the even spraying step (3) setting of multiple element composite metal oxidate arsenic removal settling agent added on the water surface that has the described interception of porous pipe place to step (1) Ba Chu of multiple element composite metal oxidate arsenic removal settling agent; The throwing amount of multiple element composite metal oxidate arsenic removal settling agent in water is 400mg/L, arrest reaction deposition 48 hours.Afterwards; The even spraying of multicomponent composite flocculating setting agent is deposited on the water surface; The total concn that in processed water, forms Poly aluminum Chloride (PAC), Tai-Ace S 150 and iron trichloride in the multicomponent composite flocculating setting agent that obtains is 400mg/L, and the mol ratio of the aluminium element in ferro element in the iron trichloride and Poly aluminum Chloride (PAC) and the Tai-Ace S 150 is 0.5: 1; Potassium permanganate be in Poly aluminum Chloride (PAC), Tai-Ace S 150 and the iron trichloride ferro element and aluminium element gross weight 0.33%; SEPIGEL 305 be in Poly aluminum Chloride (PAC), Tai-Ace S 150, the iron trichloride ferro element and aluminium element gross weight 1.3%.Staticly settled 72 hours after adding multicomponent composite flocculating setting agent, handle in this waters arsenic concentration in the water of back reach three types of water bodys of national water environment quality standard to the requirement of arsenic concentration (＜0.05mg/L).
Let out to downstream under the upper water overflow of the water after utilizing pontoon pump or U trap with the above-mentioned arsenic removal that obtains then; The upper reaches, the place ahead arsenic-containing water that has porous pipe place that adds multiple element composite metal oxidate arsenic removal settling agent is set this moment; Under action of gravity, flow through in order add multiple element composite metal oxidate arsenic removal settling agent have a porous pipe place, and flow through add multicomponent composite flocculating setting agent have a porous pipe place; Flow through when two places have the porous pipe at arsenic-containing water; Multiple element composite metal oxidate arsenic removal settling agent and multicomponent composite flocculating setting agent add in the water body that gets into continuous flow through the porous pipe that has separately; And stir the arsenic removal of carrying out water body under the situation of water body at aerating apparatus; Realization contains the continuous processing of arsenic current water, until the arsenic-containing water body between step (1) described interception dam and the described interception of step (2) dam is disposed.Wherein, the throwing amount of multiple element composite metal oxidate arsenic removal settling agent in water is 200mg/L, and the throwing amount of multicomponent composite flocculating setting agent in water is 50mg/L, and the composition of the multicomponent composite flocculating setting agent that formation obtains in processed water and content are with the above.
The mobile water body that adopts aforesaid method to carry out arsenic contamination is handled, in the water after the processing arsenic concentration can satisfy or be superior in the national water environment quality standard three types of water bodys to the specified requirement of arsenic concentration (＜0.05mg/L).
The mixed solution (iron trichloride, aluminum chloride, the ferrous sulfate concentration in mixed aqueous solution is 2g/L) that described multiple element composite metal oxidate arsenic removal settling agent is made up of the aqueous solution of the aqueous solution of the aqueous solution of iron trichloride, aluminum chloride, ferrous sulfate prepared with mixed aqueous solution (concentration of permanganate in mixed aqueous solution is 4g/L, and water glass, chitosan, the PAM concentration in mixed aqueous solution is 1g/L) the mixing stirring reaction of being made up of the aqueous solution of the aqueous solution of the aqueous solution of the aqueous solution of potassium permanganate, water glass, chitosan, PAM in 6 hours; The composite component of multiple element composite metal oxidate arsenic removal settling agent comprises ferric hydrous oxide, hydronium(ion) oxidation iron, hydration hydroxyl hydrogen red stone, hydrated aluminum oxide compound, hydration aluminum oxyhydroxide, W 4600, hydrated manganese oxide compound and hydration hydroxyl hydrogen manganese oxide etc., and wherein: ferro element: manganese element: the mol ratio of aluminium element is 4: 2: 1.
Embodiment 11
Multicomponent composite flocculating setting agent preparation: aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate, PAFS, potassium permanganate, SEPIGEL 305 are joined simultaneously abundant stirring and dissolving in the lixator that water is housed; Make that the aluminium salt concn is 600g/L in the water; Iron salt concentration is 400g/L; Potassium permanganate concentration is 500g/L, and concentration of polyacrylamide is 2g/L.
Being applied to arsenic-polluted river purifies: arsenic concentration is 1.0mg/L in the arsenic polluted water body.Administer according to following steps:
(1) suffers the current downstream of arsenic contamination at mobile, utilize the interception dam that the current interception is lived to let out under the current of avoiding receiving arsenic contamination; In the water of interception front, dam, pontoon pump or U trap are set;
(2) will tackle current that the upper reaches, dam do not receive arsenic contamination and the Zhi Liushui that possibly import these current that receive arsenic contamination and stop, and avoid the water in tributary to get into and suffer in the water of arsenic contamination with the interception dam;
(3) by the upper reaches of the water that suffers arsenic contamination of the described interception of step (1) dam interception, the length that is provided for adding multiple element composite metal oxidate arsenic removal settling agent is the same with the width of water stream channel has the porous pipe; In the downstream that add the multiple element composite metal oxidate arsenic removal settling agent place, the length that is provided for adding multicomponent composite flocculating setting agent is the same with the width of water stream channel has the porous pipe; And the distance that adds the multiple element composite metal oxidate arsenic removal settling agent place and add between the multicomponent composite flocculating setting agent place is 2: 1 for the ratio scope of the useful capacity of the water stream channel between the two and the volume of handling the water yield every day; The distance that adds between the described interception of multicomponent composite flocculating setting agent place and step (1) dam is 10: 1 for the ratio scope of the useful capacity of water stream channel between the two and the volume of handling the water yield every day; At the 4m place, rear that adds the multiple element composite metal oxidate arsenic removal settling agent place and the 10m place, rear that adds the multicomponent composite flocculating setting agent place aerating apparatus or whipping appts all are set;
(4) the even spraying step (3) setting of multiple element composite metal oxidate arsenic removal settling agent added on the water surface that has the described interception of porous pipe place to step (1) Ba Chu of multiple element composite metal oxidate arsenic removal settling agent; The throwing weight range of multiple element composite metal oxidate arsenic removal settling agent in water is between the 100mg/L, arrest reaction deposition 24 hours.Afterwards; The even spraying of multicomponent composite flocculating setting agent is deposited on the water surface; Form in processed water in the multicomponent composite flocculating setting agent obtain that the total concn of ferro element and aluminium element is 20mg/L in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the PAFS, the mol ratio of the aluminium element in ferro element in bodied ferric sulfate and the PAFS and aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate and the PAFS is 0.67: 1; Potassium permanganate be in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the PAFS ferro element and aluminium element gross weight 50%; SEPIGEL 305 be in Poly aluminum Chloride (PAC), Tai-Ace S 150, the iron trichloride ferro element and aluminium element gross weight 0.2%.Added behind the multicomponent composite flocculating setting agent quiescent setting 48 hours, handle in this waters arsenic concentration in the water of back reach three types of water bodys of national water environment quality standard to the requirement of arsenic concentration (＜0.05mg/L).
Let out to downstream under the upper water overflow of the water after utilizing pontoon pump or U trap with the above-mentioned arsenic removal that obtains then; The upper reaches, the place ahead arsenic-containing water that has porous pipe place that adds multiple element composite metal oxidate arsenic removal settling agent is set this moment; Under action of gravity, flow through in order add multiple element composite metal oxidate arsenic removal settling agent have a porous pipe place, and flow through add multicomponent composite flocculating setting agent have a porous pipe place; Flow through when two places have the porous pipe at arsenic-containing water; Multiple element composite metal oxidate arsenic removal settling agent and multicomponent composite flocculating setting agent add in the water body that gets into continuous flow through the porous pipe that has separately; And stir the arsenic removal of carrying out water body under the situation of water body at whipping appts; Realization contains the continuous processing of arsenic current water, until the arsenic-containing water body between step (1) described interception dam and the described interception of step (2) dam is disposed.Wherein, the throwing amount of multiple element composite metal oxidate arsenic removal settling agent in water is 100mg/L, and the throwing amount of multicomponent composite flocculating setting agent in water is 50mg/L, and the composition of the multicomponent composite flocculating setting agent that formation obtains in processed water and content are with the above.
The mobile water body that adopts aforesaid method to carry out arsenic contamination is handled, in the water after the processing arsenic concentration can satisfy or be superior in the national water environment quality standard three types of water bodys to the specified requirement of arsenic concentration (＜0.05mg/L).
Described multiple element composite metal oxidate arsenic removal settling agent is according to the preparation of following method and get: the mixed aqueous solution (iron trichloride, aluminum chloride, the ferrous sulfate concentration in mixed aqueous solution is 2g/L) that preparation is combined to form by the aqueous solution of the aqueous solution of the aqueous solution of iron trichloride, aluminum chloride, ferrous sulfate, and adding zeyssatite, kaolin, red soil, flyash, red mud and clay (zeyssatite, kaolin, red soil, flyash, red mud and the clay concentration in mixed aqueous solution is 5g/L) mix the acquisition mixed liquor A; The aqueous solution (concentration of potassium permanganate in mixed aqueous solution is 4g/L, and water glass, chitosan, the PAM concentration in mixed aqueous solution is 1g/L) and stirring and dissolving that the aqueous solution of the aqueous solution of preparation potassium permanganate, the aqueous solution of water glass, chitosan, the aqueous solution of PAM combine obtain mixed liquid B.Mixing mixed liquor A also with mixed liquid B, stirring reaction prepared and got in 3 hours.The composite component of multiple element composite metal oxidate arsenic removal settling agent comprises ferric hydrous oxide, hydronium(ion) oxidation iron, hydration hydroxyl hydrogen red stone, hydrated aluminum oxide compound, hydration aluminum oxyhydroxide, W 4600, hydrated manganese oxide compound and hydration hydroxyl hydrogen manganese oxide etc., and wherein: ferro element: manganese element: the mol ratio of aluminium element is 4: 2: 1.
Embodiment 12
Multicomponent composite flocculating setting agent preparation: aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate, PAFS, potassium permanganate, SEPIGEL 305, water glass, sodium polyphosphate are joined simultaneously abundant stirring and dissolving in the lixator that water is housed; Make that the aluminium salt concn is 600g/L in the water; Iron salt concentration is 400g/L; Potassium permanganate concentration is 500g/L; Concentration of polyacrylamide is 2g/L, and sodium silicate silicate is 20g/L, and sodium polyphosphate concentration is 40g/L.
Being applied to arsenic-polluted river purifies: arsenic concentration is 1.0mg/L in the arsenic polluted water body.Administer according to following steps:
(1) suffers the current downstream of arsenic contamination at mobile, utilize the interception dam that the current interception is lived to let out under the current of avoiding receiving arsenic contamination; In the water of interception front, dam, pontoon pump or U trap are set;
(2) will tackle current that the upper reaches, dam do not receive arsenic contamination and the Zhi Liushui that possibly import these current that receive arsenic contamination and stop, and avoid the water in tributary to get into and suffer in the water of arsenic contamination with the interception dam;
(3) by the upper reaches of the water that suffers arsenic contamination of the described interception of step (1) dam interception, the length that is provided for adding multiple element composite metal oxidate arsenic removal settling agent is the same with the width of water stream channel has the porous pipe; In the downstream that add the multiple element composite metal oxidate arsenic removal settling agent place, the length that is provided for adding multicomponent composite flocculating setting agent is the same with the width of water stream channel has the porous pipe; And the distance that adds the multiple element composite metal oxidate arsenic removal settling agent place and add between the multicomponent composite flocculating setting agent place is 2: 1 for the ratio scope of the useful capacity of the water stream channel between the two and the volume of handling the water yield every day; The distance that adds between the described interception of multicomponent composite flocculating setting agent place and step (1) dam is 5: 1 for the ratio scope of the useful capacity of water stream channel between the two and the volume of handling the water yield every day; At the 2m place, rear that adds the multiple element composite metal oxidate arsenic removal settling agent place and the 2m place, rear that adds the multicomponent composite flocculating setting agent place aerating apparatus or whipping appts all are set;
(4) the even spraying step (3) setting of multiple element composite metal oxidate arsenic removal settling agent added on the water surface that has the described interception of porous pipe place to step (1) Ba Chu of multiple element composite metal oxidate arsenic removal settling agent; The throwing weight range of multiple element composite metal oxidate arsenic removal settling agent in water is 100mg/L, arrest reaction deposition 24 hours; Afterwards; The even spraying of multicomponent composite flocculating setting agent is deposited on the water surface; Form in processed water in the multicomponent composite flocculating setting agent obtain that the total concn of ferro element and aluminium element is 200mg/L in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the PAFS, the mol ratio of the aluminium element in ferro element in bodied ferric sulfate and the PAFS and aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate and the PAFS is 0.67: 1; Potassium permanganate concentration is 50% of aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and PAFS gross weight; Concentration of polyacrylamide be in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the PAFS ferro element and aluminium element gross weight 0.2%; Sodium silicate silicate be in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the PAFS ferro element and aluminium element gross weight 2%, sodium polyphosphate concentration be in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the PAFS ferro element and aluminium element gross weight 4%.Added behind the multicomponent composite flocculating setting agent quiescent setting 48 hours, handle in this waters arsenic concentration in the water of back reach three types of water bodys of national water environment quality standard to the requirement of arsenic concentration (＜0.05mg/L).
Let out to downstream under the upper water overflow of the water after utilizing pontoon pump or U trap with the above-mentioned arsenic removal that obtains then; The upper reaches, the place ahead arsenic-containing water that has porous pipe place that adds multiple element composite metal oxidate arsenic removal settling agent is set this moment; Under action of gravity, flow through in order add multiple element composite metal oxidate arsenic removal settling agent have a porous pipe place, and flow through add multicomponent composite flocculating setting agent have a porous pipe place; Flow through when two places have the porous pipe at arsenic-containing water; Multiple element composite metal oxidate arsenic removal settling agent and multicomponent composite flocculating setting agent add in the water body that gets into continuous flow through the porous pipe that has separately; And stir the arsenic removal of carrying out water body under the situation of water body at aerating apparatus; Realization contains the continuous processing of arsenic current water, until the arsenic-containing water body between step (1) described interception dam and the described interception of step (2) dam is disposed.Wherein, the throwing amount of multiple element composite metal oxidate arsenic removal settling agent in water is 80mg/L, and the throwing amount of multicomponent composite flocculating setting agent in water is 100mg/L, and the composition of the multicomponent composite flocculating setting agent that formation obtains in processed water and content are with the above.
The mobile water body that adopts aforesaid method to carry out arsenic contamination is handled, in the water after the processing arsenic concentration can satisfy or be superior in the national water environment quality standard three types of water bodys to the specified requirement of arsenic concentration (＜0.05mg/L).
Described multiple element composite metal oxidate arsenic removal settling agent gets according to following method preparation: the mixed aqueous solution (iron trichloride, aluminum chloride, the ferrous sulfate concentration in mixed aqueous solution is 2g/L) that the aqueous solution of the aqueous solution of preparation iron trichloride, the aqueous solution of aluminum chloride, ferrous sulfate is formed, and add zeyssatite and kaolin (zeyssatite and the kaolin concentration in mixed aqueous solution is 50g/L) and mix the acquisition mixed liquor A; The mixed aqueous solution of the aqueous solution of the aqueous solution of configuration potassium permanganate, the aqueous solution of water glass, chitosan, the aqueous solution combination of PAM; And (concentration of potassium permanganate in mixed aqueous solution B is 4g/L to add abundant stirring acquisition such as red soil, flyash, red mud and clay mixed aqueous solution B; Water glass, chitosan, the concentration of PAM in mixed aqueous solution B are 1g/L, and red soil, flyash, red mud and the clay concentration in mixed aqueous solution B is 50g/L).Mixed liquor A is mixed also abundant the stirring to be prepared and got with mixed liquid B in 3 hours.The composite component of multiple element composite metal oxidate arsenic removal settling agent comprises ferric hydrous oxide, hydronium(ion) oxidation iron, hydration hydroxyl hydrogen red stone, hydrated aluminum oxide compound, hydration aluminum oxyhydroxide, W 4600, hydrated manganese oxide compound and hydration hydroxyl hydrogen manganese oxide etc., and wherein: ferro element: manganese element: the mol ratio of aluminium element is 4: 2: 1.
Embodiment 13
Multicomponent composite flocculating setting agent preparation: aluminum chloride, PAFS, potassium permanganate, SEPIGEL 305 are joined simultaneously abundant stirring and dissolving in the lixator that water is housed; Make that the aluminium salt concn is 400g/L in the water; Iron salt concentration is 5g/L; Potassium permanganate concentration is 0.5g/L, and concentration of polyacrylamide is 2g/L.
Being applied to arsenic-polluted river purifies: arsenic concentration is 0.5mg/L in the arsenic polluted water body.Administer according to following steps:
(1) suffers the current downstream of arsenic contamination at mobile, utilize the interception dam that the current interception is lived to let out under the current of avoiding receiving arsenic contamination; In the water of interception front, dam, pontoon pump or U trap are set;
(2) will tackle current that the upper reaches, dam do not receive arsenic contamination and the Zhi Liushui that possibly import these current that receive arsenic contamination and stop, and avoid the water in tributary to get into and suffer in the water of arsenic contamination with the interception dam;
(3) by the upper reaches of the water that suffers arsenic contamination of the described interception of step (1) dam interception, the length that is provided for adding multicomponent composite flocculating setting agent is the same with the width of water stream channel has the porous pipe; The distance that adds between the described interception of multicomponent composite flocculating setting agent place and step (1) dam is 2: 1 for the ratio scope of the useful capacity of water stream channel between the two and the volume of handling the water yield every day; 10m place, rear adding the multicomponent composite flocculating setting agent place all is provided with aerating apparatus or whipping appts;
(4) the even spraying step (3) setting of multicomponent composite flocculating setting agent added on the water surface that has the described interception of porous pipe place to step (1) Ba Chu of multicomponent composite flocculating setting agent.Form in processed water in the multicomponent composite flocculating setting agent obtain that the total concn of ferro element and aluminium element is 400mg/L in the aluminum chloride and PAFS, the mol ratio of the aluminium element in ferro element in the PAFS and aluminum chloride and the PAFS is 1.25%: 1; Potassium permanganate be in aluminum chloride and the PAFS ferro element and aluminium element gross weight 0.12%; Concentration of polyacrylamide be in aluminum chloride, the PAFS ferro element and aluminium element gross weight 0.48%.Added behind the multicomponent composite flocculating setting agent quiescent setting 72 hours, handle in this waters arsenic concentration in the water of back reach three types of water bodys of national water environment quality standard to the requirement of arsenic concentration (＜0.05mg/L).
Let out to downstream under the upper water overflow of the water after utilizing pontoon pump or U trap with the above-mentioned arsenic removal that obtains then; Be provided with the upper reaches, the place ahead arsenic-containing water that has porous pipe place add multicomponent composite flocculating setting agent this moment, under action of gravity, flow through add multicomponent composite flocculating setting agent have a porous pipe place; Flow through when this has the porous pipe at arsenic-containing water; Multicomponent composite flocculating setting agent adds in the water body that gets into continuous flow through having the porous pipe; And stir the arsenic removal of carrying out water body under the situation of water body at whipping appts; Realization contains the continuous processing of arsenic current water, until the arsenic-containing water body between step (1) described interception dam and the described interception of step (2) dam is disposed.Wherein, the composition of the multicomponent composite flocculating setting agent that formation obtains in processed water and content are with the above, and the throwing amount is 200mg/L.
The mobile water body that adopts aforesaid method to carry out arsenic contamination is handled, in the water after the processing arsenic concentration can satisfy or be superior in the national water environment quality standard three types of water bodys to the specified requirement of arsenic concentration (＜0.05mg/L).
Embodiment 14
Multicomponent composite flocculating setting agent preparation: aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate, iron trichloride, potassium permanganate, SEPIGEL 305 are joined simultaneously abundant stirring and dissolving in the lixator that water is housed; Make that the aluminium salt concn is 400g/L in the water; Iron salt concentration is 40g/L; Potassium permanganate concentration is 44g/L, and concentration of polyacrylamide is 4.4g/L.
Being applied to arsenic-polluted river purifies: arsenic concentration is 1.50mg/L in the arsenic polluted water body.Administer according to following steps:
(1) suffers the current downstream of arsenic contamination at mobile, utilize the interception dam that the current interception is lived to let out under the current of avoiding receiving arsenic contamination; In the water of interception front, dam, pontoon pump or U trap are set;
(2) will tackle current that the upper reaches, dam do not receive arsenic contamination and the Zhi Liushui that possibly import these current that receive arsenic contamination and stop, and avoid not receiving the current of arsenic contamination to get into and suffer in the water of arsenic contamination with the interception dam;
(3) by the upper reaches of the water that suffers arsenic contamination of the described interception of step (1) dam interception, the length that is provided for adding multiple element composite metal oxidate arsenic removal settling agent is the same with the width of water stream channel has the porous pipe; In the downstream that add the multiple element composite metal oxidate arsenic removal settling agent place, the length that is provided for adding multicomponent composite flocculating setting agent is the same with the width of water stream channel has the porous pipe; And the distance that adds the multiple element composite metal oxidate arsenic removal settling agent place and add between the multicomponent composite flocculating setting agent place is 1: 1 for the ratio of the available water capacity of the water stream channel between the two and the volume of handling the water yield every day; The distance that adds between the described interception of multicomponent composite flocculating setting agent place and step (1) dam is 1: 1 for the ratio of the available water capacity of water stream channel between the two and the volume of handling the water yield every day; At 0.5m place, rear that adds the multiple element composite metal oxidate arsenic removal settling agent place and the 0.5m place, rear that adds the multicomponent composite flocculating setting agent place aerating apparatus is set;
(4) the even spraying step (3) setting of multiple element composite metal oxidate arsenic removal settling agent added on the water surface that has the described interception of porous pipe place to step (1) Ba Chu of multiple element composite metal oxidate arsenic removal settling agent; The throwing amount of multiple element composite metal oxidate arsenic removal settling agent in water is 100mg/L, arrest reaction deposition 2 hours.Afterwards; The even spraying of multicomponent composite flocculating setting agent is deposited on the water surface; Form in processed water in the multicomponent composite flocculating setting agent obtain that the total concn of ferro element and aluminium element is 100mg/L in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the iron trichloride, the mol ratio of the aluminium element in ferro element in bodied ferric sulfate and the iron trichloride and aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150 and the aluminum nitrate is 0.1: 1; Potassium permanganate concentration be in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the iron trichloride ferro element and aluminium element gross weight 10%, concentration of polyacrylamide be in aluminum chloride, alum, polyaluminium sulfate, Poly aluminum Chloride (PAC), Tai-Ace S 150, aluminum nitrate, bodied ferric sulfate and the iron trichloride ferro element and aluminium element gross weight 1%.Added behind the multicomponent composite flocculating setting agent quiescent setting 24 hours, handle in this waters arsenic concentration in the water of back reach three types of water bodys of national water environment quality standard to the requirement of arsenic concentration (＜0.05mg/L).
Let out to downstream under the upper water overflow of the water after utilizing pontoon pump or U trap with the above-mentioned arsenic removal that obtains then; The upper reaches, the place ahead arsenic-containing water that has porous pipe place that adds multiple element composite metal oxidate arsenic removal settling agent is set this moment; Under action of gravity, flow through in order add multiple element composite metal oxidate arsenic removal settling agent have a porous pipe place, and flow through add multicomponent composite flocculating setting agent have a porous pipe place; Flow through when two places have the porous pipe at arsenic-containing water; Multiple element composite metal oxidate arsenic removal settling agent and multicomponent composite flocculating setting agent add in the water body that gets into continuous flow through the porous pipe that has separately; And stir the arsenic removal of carrying out water body under the situation of water body at aerating apparatus; Realization contains the continuous processing of arsenic current water, until the arsenic-containing water body between step (1) described interception dam and the described interception of step (2) dam is disposed; Wherein, the throwing amount of multiple element composite metal oxidate arsenic removal settling agent in water is 50mg/L, and the throwing amount of multicomponent composite flocculating setting agent in water is 100mg/L, and the composition of the multicomponent composite flocculating setting agent that formation obtains in processed water and content are with the above.
The mobile water body that adopts aforesaid method to carry out arsenic contamination is handled, in the water after the processing arsenic concentration can satisfy or be superior in the national water environment quality standard three types of water bodys to the specified requirement of arsenic concentration (＜0.05mg/L).
Described multiple element composite metal oxidate arsenic removal settling agent mixes stirring reaction preparation in 30 minutes by the aqueous solution of the aqueous solution of the aqueous solution of the aqueous solution of iron trichloride, aluminum chloride, ferrous sulfate, calcium chloride, mixed aqueous solution (iron trichloride, aluminum chloride, the ferrous sulfate concentration in mixed aqueous solution is 4g/L, and calcium chloride is 1g/L with the concentration of magnesium chloride in mixed aqueous solution) that magnesium chloride solution is formed and gets with potassium permanganate solution (concentration of permanganate water solution is 2g/L).The composite component of multiple element composite metal oxidate arsenic removal settling agent comprises ferric hydrous oxide, hydronium(ion) oxidation iron, hydration hydroxyl hydrogen red stone, hydrated aluminum oxide compound, hydration aluminum oxyhydroxide, W 4600, hydrated manganese oxide compound and hydration hydroxyl hydrogen manganese oxide etc., and wherein: ferro element: manganese element: the mol ratio of aluminium element is 3: 1: 2.
Claims (6)
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