CN107381925A - A kind of method for handling methylene blue waste water - Google Patents
A kind of method for handling methylene blue waste water Download PDFInfo
- Publication number
- CN107381925A CN107381925A CN201710720314.2A CN201710720314A CN107381925A CN 107381925 A CN107381925 A CN 107381925A CN 201710720314 A CN201710720314 A CN 201710720314A CN 107381925 A CN107381925 A CN 107381925A
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- China
- Prior art keywords
- waste water
- methylene blue
- blue waste
- processing
- aqueous solution
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Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 90
- 229960000907 methylthioninium chloride Drugs 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 73
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 title claims abstract 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- TUSDEZXZIZRFGC-UHFFFAOYSA-N 1-O-galloyl-3,6-(R)-HHDP-beta-D-glucose Natural products OC1C(O2)COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC1C(O)C2OC(=O)C1=CC(O)=C(O)C(O)=C1 TUSDEZXZIZRFGC-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000001263 FEMA 3042 Substances 0.000 claims abstract description 21
- LRBQNJMCXXYXIU-PPKXGCFTSA-N Penta-digallate-beta-D-glucose Natural products OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-PPKXGCFTSA-N 0.000 claims abstract description 21
- LRBQNJMCXXYXIU-NRMVVENXSA-N tannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-NRMVVENXSA-N 0.000 claims abstract description 21
- 229940033123 tannic acid Drugs 0.000 claims abstract description 21
- 235000015523 tannic acid Nutrition 0.000 claims abstract description 21
- 229920002258 tannic acid Polymers 0.000 claims abstract description 21
- 238000005189 flocculation Methods 0.000 claims abstract description 15
- 230000016615 flocculation Effects 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 50
- 239000007864 aqueous solution Substances 0.000 claims description 31
- 229920001864 tannin Polymers 0.000 claims description 19
- 235000018553 tannin Nutrition 0.000 claims description 19
- 239000001648 tannin Substances 0.000 claims description 19
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 18
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical group O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 13
- 239000013049 sediment Substances 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 8
- 239000001110 calcium chloride Substances 0.000 claims description 8
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 8
- 159000000007 calcium salts Chemical class 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000008394 flocculating agent Substances 0.000 claims description 5
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical group Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 5
- 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 5
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 5
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- 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 4
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims description 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 4
- 239000000376 reactant Substances 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- 235000000177 Indigofera tinctoria Nutrition 0.000 claims description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 229940097275 indigo Drugs 0.000 claims description 2
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000010908 plant waste Substances 0.000 claims description 2
- 239000002244 precipitate Substances 0.000 claims description 2
- 241001062009 Indigofera Species 0.000 claims 1
- MCPLVIGCWWTHFH-UHFFFAOYSA-L methyl blue Chemical compound [Na+].[Na+].C1=CC(S(=O)(=O)[O-])=CC=C1NC1=CC=C(C(=C2C=CC(C=C2)=[NH+]C=2C=CC(=CC=2)S([O-])(=O)=O)C=2C=CC(NC=3C=CC(=CC=3)S([O-])(=O)=O)=CC=2)C=C1 MCPLVIGCWWTHFH-UHFFFAOYSA-L 0.000 claims 1
- 239000000975 dye Substances 0.000 abstract description 26
- 230000000694 effects Effects 0.000 abstract description 18
- 230000036284 oxygen consumption Effects 0.000 abstract description 13
- 239000000126 substance Substances 0.000 abstract description 13
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229910001424 calcium ion Inorganic materials 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- CXKWCBBOMKCUKX-UHFFFAOYSA-M methylene blue Chemical compound [Cl-].C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 CXKWCBBOMKCUKX-UHFFFAOYSA-M 0.000 description 62
- 101710086811 Chitooligosaccharide deacetylase Proteins 0.000 description 20
- 239000000243 solution Substances 0.000 description 18
- 238000004042 decolorization Methods 0.000 description 15
- 239000011260 aqueous acid Substances 0.000 description 8
- 238000002835 absorbance Methods 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 5
- 229910021645 metal ion Inorganic materials 0.000 description 5
- 239000001045 blue dye Substances 0.000 description 4
- 238000004043 dyeing Methods 0.000 description 4
- 229940056319 ferrosoferric oxide Drugs 0.000 description 4
- 238000007885 magnetic separation Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 235000013824 polyphenols Nutrition 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 241000276457 Gadidae Species 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 3
- 238000003556 assay Methods 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 150000004696 coordination complex Chemical class 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 3
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005660 chlorination reaction Methods 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 239000010919 dye waste Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- RNKMOGIPOMVCHO-SJMVAQJGSA-N 1,3,6-trigalloyl glucose Chemical compound C([C@@H]1[C@H]([C@@H]([C@@H](O)[C@H](OC(=O)C=2C=C(O)C(O)=C(O)C=2)O1)OC(=O)C=1C=C(O)C(O)=C(O)C=1)O)OC(=O)C1=CC(O)=C(O)C(O)=C1 RNKMOGIPOMVCHO-SJMVAQJGSA-N 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 229920001661 Chitosan Polymers 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 244000283207 Indigofera tinctoria Species 0.000 description 1
- 206010028400 Mutagenic effect Diseases 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 229920002253 Tannate Polymers 0.000 description 1
- 208000031320 Teratogenesis Diseases 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- -1 corrosion inhibiter Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000243 mutagenic effect Toxicity 0.000 description 1
- 230000003505 mutagenic effect Effects 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 150000008442 polyphenolic compounds Chemical class 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 229930000044 secondary metabolite Natural products 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 230000010148 water-pollination Effects 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/481—Treatment of water, waste water, or sewage with magnetic or electric fields using permanent magnets
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/484—Treatment of water, waste water, or sewage with magnetic or electric fields using electromagnets
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The present invention relates to a kind of method for handling methylene blue waste water, the present invention in methylene blue waste water by adding tannic acid and metal calcium ion, add Magnaglo and flocculant again after mixing, magnetic flocculate is formed in the basic conditions, Magneto separate is carried out to magnetic flocculate through magnet, has the function that to purify methylene blue waste water.Beneficial effects of the present invention are：Simple to operate, decolorizing effect significantly, can effectively remove the soluble organic dyes in waste water from dyestuff and reduce the chemical oxygen consumption (COC) in water；Operating cost is low, process cycle is short, efficiency high, and technique is simple, will not produce secondary pollution after flocculation treatment, easy to spread.
Description
Technical field
The present invention relates to a kind of method of wastewater treatment, and in particular to a kind of method for handling methylene blue waste water.
Background technology
Methylene blue is a kind of important organic chemical synthesis dye of positive ion, is widely used in dyeing, can be used for
Fiber crops, silk fabric, the dyeing of paper and the coloring of bamboo and wood, it can also be used to biology, the dyeing of bacterial organisms and for manufacturing ink
Water and color lake etc..The extensive use of methylene blue industrially causes industrial wastewater containing methylene blue to cause other pure water bodys
Pollution.Printing and dyeing, weaving, dyestuff and the waste water that waits industry to be discharged have that water is big, complicated component, pollutant concentration are high, colourity
The features such as deep, and with certain anti-oxidant, antibiont degradability, it has also become the important pollution sources in the major waters in China.It is organic
Not only colourity is high for waste water from dyestuff, and chemical oxygen consumption (COC) (COD) concentration is high in water, it is difficult to and it is biodegradable, decolourize difficult.And mostly
Number dyestuff also has toxicity, there is carcinogenic, teratogenesis and mutagenic effect.The processing method containing organic dye waste water mainly has at present
Bioanalysis, Coagulation Method, oxidizing process, absorption method and membrane separation process etc..
The processing method generally existing handling process of existing organic dye waste water is cumbersome, processing time is long, removal efficiency
Low, the problem of processing cost is high.Raw material needed for flocculant or adsorbent manufacturing process used is more and expensive, preparation technology
Complicated, the problems such as manufacturing cost is high.Waste water of the Biochemical method containing organic dyestuff is by factors such as pH value, temperature, kind of dyes
Influence, in addition sludge bulking, poly- the micelle easily reason such as disintegration so that the effect of biological treatment is not ideal enough.The operation of Coagulation Method
Costly, body refuse amount is big and dehydration is difficult, and applicable pH range is narrow, to hydrophilic dye poor processing effect.Oxidizing process into
This height, and catalyst can not reclaim, conventional oxidant can also show that oxidability is not strong, the shortcomings of selective oxidation be present,
And it is readily incorporated impurity in processing procedure and causes secondary pollution.Suspension, macromolecule pollutant, oil of the absorption method easily in by water
Fat etc. influences, and adsorbent amount is big, costly.Membrane separation process is divided into electroosmose process, hyperfiltration, nano filtering process, ultrafiltration etc.,
Wherein electroosmose process, hyperfiltration, nano filtering process the advantages of be clearance height, the dyestuff in waste water can be reclaimed, technique is simple, still
The cost of film used in itself is higher, and operating pressure is larger, causes the energy consumption of embrane method higher, have impact on its industrial applications.And pass
The ultrafiltration of system is larger due to membrane aperture, it is difficult to removes the organic pollution of low molecule amount, removal efficiency is low.Flocculation decoloration method because
Investment cost is low, processing capacity is big, percent of decolourization is high and is widely used in the decolorization of high-concentration and high-chromaticity waste water.Existing wadding
Solidifying agent mainly has inorganic flocculating agent and the major class of organic flocculant two.Inorganic flocculating agent mainly has iron chloride, aluminum sulfate, polyaluminum sulfate
Iron etc., it has certain effect to removing the suspension in sewage, but does not have decolorization for deliquescent dyestuff in water, and
Dosage is big, efficiency is low.Organic flocculant mainly has the decolorization flocculation agent of polyacrylamide and chitosan etc., but because its price is held high
Expensive, processing cost is high, and polyacrylamide has certain toxicity in itself, using being subject to certain restrictions.Due to highly concentrated high chroma
The water quality of waste water is sufficiently complex, and single flocculant is difficult to reach ideal effect, thus develop the agent of NEW TYPE OF COMPOSITE decolorization flocculation into
For the study hotspot in current water treatment field.
The content of the invention
In order to solve the shortcomings of the prior art, the invention provides it is a kind of handle methylene blue waste water method and its
Preparation method and application.The method of processing methylene blue waste water made of of the invention
It is an object of the invention to provide a kind of method for handling methylene blue waste water.
According to the method for the processing methylene blue waste water of the embodiment of the present invention, the processing methylene blue waste water
Method comprise the following steps：
(1) tannic acid is added separately to mix and react in methylene blue waste water with calcium salt；
(2) reactant obtained in step (1) is adjusted into pH to 9-10 with alkaline aqueous solution, mixes and react to form blueness
Sediment；
(3) Magnaglo is added in the reactant obtained into step (2) and flocculant carries out flocculation sediment；
(4) flocculation sediment obtained in step (3) is separated and removed using magnet, completed to methylene blue waste water
Processing.
According to the method for the processing methylene blue waste water of the embodiment of the present invention, wherein, it is described in step (1)
The concentration of methylene blue waste water is 5-100mg/L；The tannic acid is vegatable tannin acid.The effective content of tannic acid is
80wt%, that is, the tannic acid added are mixture, and its tannic acid contained is 80wt%.
According to the method for the processing methylene blue waste water of the embodiment of the present invention, wherein, it is single described in step (1)
The addition of peaceful acid is the tannic acid that 0.078-0.098mmol is added into every liter of methylene blue waste water.Preferably, every liter of methylene
0.088mmol tannic acid is added in base indigo plant waste water, or, 150mg tannic acid is directly added into every liter of methylene blue waste water
Solid matter.
According to the method for the processing methylene blue waste water of the embodiment of the present invention, wherein, calcium described in step (1)
Salt is calcium chloride, calcium sulfate, calcium carbonate or calcium nitrate, and the addition of the calcium salt is to add 0.8- in every liter of methylene blue waste water
1.0mmol calcium salt.Preferably, 0.9mmol calcium salts are added in every liter of methylene blue waste water.
According to the method for the processing methylene blue waste water of the embodiment of the present invention, wherein, alkali described in step (2)
Property the aqueous solution be sodium hydrate aqueous solution, the concentration of the sodium hydrate aqueous solution is 40%.
According to the method for the processing methylene blue waste water of the embodiment of the present invention, wherein, described in step (3)
Magnaglo is ferroferric oxide powder.
According to the method for the processing methylene blue waste water of the embodiment of the present invention, wherein, described in step (3)
Flocculant is ferric trichloride, ferric sulfate, bodied ferric sulfate, poly-ferric chloride, aluminum sulfate or polyaluminium sulfate.
According to the method for the processing methylene blue waste water of the embodiment of the present invention, wherein, described in step (3)
The addition of Magnaglo is that 1.25g Magnaglos are added in every liter of methylene blue waste water；The addition of the flocculant is every
Rise and 3.5mmol flocculants are added in methylene blue waste water.
According to the method for the processing methylene blue waste water of the embodiment of the present invention, wherein, it is described in step (3)
Flocculation sediment is first carries out whipping process, then carries out standing process, and the speed of the stirring is 150-200r/min, the stirring
Time be 10s-30s, the time of the standing is 30s-50s.
According to the method for the processing methylene blue waste water of the embodiment of the present invention, wherein, it is described in step (4)
Magnet is permanent magnet or electromagnet.
Heretofore described tannic acid, calcium chloride, ferric trichloride, that ferroso-ferric oxide can be configured to finite concentration is water-soluble
Liquid, the content in solution can be also converted into the solids quality needed for every liter, directly added in proportion into solution above-mentioned solid
Body material.For example the addition of tannic acid is that 0.088mmol is added in every liter of methylene blue waste water or is given up to every liter of methylene blue
150mg tannic acid solid matters are directly added in water.
Vegatable tannin is also plant polyphenol, is the secondary metabolites of complicated relatively higher plant, is widely distributed in plant
It is interior, containing the more frequently seen plants of tannin more than 800 kinds, the high plant of more than 300 kind tannin contents is had found in China, is a kind of point
Wide, wide in variety, quantity the is big important natural products of cloth.Each construction unit of tannin molecule is by polycyclic aromatic core and activity
Functional group forms, and its active function groups includes：Phenolic hydroxyl group, hydroxyl, carboxyl etc..Due to having various active functional group in molecule,
Vegatable tannin has hydrophily, surface-active, ion-exchange capacity, complexing power and absorption dispersibility etc., therefore it can make
It is applied for flocculant, dirt dispersion agent, corrosion inhibiter, ion exchange resin in water process.Tannin can be with protein, more
Sugar, nonionic surfactant, metal ion (particularly heavy metallic salt) combine and produce precipitation；In addition, the tannin aqueous solution has half
The property of colloidal solution, threshing is negatively charged, has electric potential, and tannin is natural macromolecular material in itself, and volume is big, holds
Flocculation sediment gets off in Yi Congshui, therefore can be applied to drinking water, waste water and Industrial Wastewater Treatment.The structure of known tannic acid
In contain substantial amounts of hydrophilic radical phenolic hydroxyl group, these groups have good to dye of positive ion molecule and heavy metal ion etc.
Compatibility, the mechanism of this and flocculence processing waste water from dyestuff is consistent.
The method of the processing methylene blue waste water of the present invention, it is certain density by being added in methylene blue dye wastewater
Tannic acid and certain density special metal ion, add a certain amount of Magnaglo and flocculant again after being sufficiently stirred,
It is sufficiently mixed under alkalescence condition and is allowed to form flocculate, producing efficient absorption with water Methylene Blue dye molecule acts on being formed surely
Fixed magnetic flocculate, Magneto separate is carried out to magnetic flocculate through magnet, methylene blue dye molecules carried out only so as to reach
The effect of change.
The tannin acid metal complex that tannic acid and divalent calcium metal ion are formed, in the basic conditions, for cation
Coloured groups in waste water from dyestuff and colorful wastewater produce Electrostatic Absorption, make dye molecule or the de- steady formation graininess of colored group
Colored sediment.
The inventive method is implemented at normal temperatures, and handling process is simple and convenient to operate, cost is low, non-secondary pollution and technique
Combination is convenient, easily realizes automation mechanized operation and easy to spread.
The method of the processing methylene blue waste water of the present invention, can be played and other flocculants or adsorbent (organic high score
Son and metal ion) same effect, separative efficiency is high, reduces secondary pollution risk.
Beneficial effects of the present invention are：The method of the processing methylene blue waste water of the present invention, simple to operate, decolorizing effect show
Write, can effectively remove the soluble organic dyes in waste water from dyestuff and reduce the chemical oxygen consumption (COC) (COD) in water；
The aqueous solution after flocculation treatment, the percent of decolourization of methylene blue waste water reach more than 97%, chemical oxygen consumption (COC) (COD)
Clearance reaches more than 75%；
The method of the processing methylene blue waste water of the present invention, operating cost is low, process cycle is short, efficiency high, technique is simple,
Secondary pollution will not be produced after flocculation treatment, it is easy to spread.
In the method for the processing methylene blue waste water of the present invention, a certain amount of Magnaglo and flocculant such as tri-chlorination is added
Iron, ferric sulfate, polyiron sulfate, aluminum sulfate, aluminium chloride etc., magnetic flocculate can be formed with colored sediment, will using magnetic force
Sediment and water quick separating, the flocculate dewatering speed that sub-argument comes out is fast, and ferroferric oxide powder therein can reclaim again
And reuse, save input cost.
This method can remove the organic matter in waste water from dyestuff simultaneously, reduce chemical oxygen consumption (COC) (COD) concentration in waste water.
The biodegradable removal of tannic acid remained in water after processing, will not produce other harm to water body.
Embodiment
Technical scheme and effect are described in further details with reference to specific embodiment.
Instrument and chemical reagent are commercially available in the present invention, and each raw material used in the present invention is all industry universal original
Material.
Embodiment 1
A kind of method for handling methylene blue waste water, comprises the following steps：
(1) the methylene blue waste water 80ml for taking concentration to be 100mg/L is placed in beaker；
(2) addition concentration is 40g/L tannin aqueous acid 0.3ml in the solution first obtained to step (1) and concentration is
20g/L calcium chloride water 0.4ml, at room temperature, 30s is stirred with 150r/min rotating speed, is well mixed, it is water-soluble to obtain dyestuff
Liquid；
(3) pH of the aqueous dye solutions obtained with sodium hydroxide (NaOH) aqueous solution regulating step (2) that concentration is 40%
To 9,30s is stirred with 150r/min rotating speed, treats to form stable blue particle shape flocculate in solution；
(4) added in the aqueous solution with blue particle shape flocculate obtained again to step (3) in 1.25g/L ratio
Ferroso-ferric oxide (Fe3O4) powder 0.1g and concentration is 920g/L ferric trichlorides (Fecl3) aqueous solution 0.05ml, then be with concentration
40% sodium hydroxide (NaOH) adjusts wastewater pH to 9, stirs 30s with 150r/min rotating speed, after standing 30s, utilizes magnet
Magnetic separation is carried out to flocculate, flocculate can be realized from the aqueous solution and efficiently separated after 5min.
Tannin aqueous acid used needs matching while using, deposits and is not to be exceeded 12 hours under normal temperature, and storage for a long time can be single
Peaceful acid can hydrolyze, and influence treatment effect.
The aqueous solution after flocculation treatment, methylene blue solution percent of decolourization reach more than 97%, and chemical oxygen consumption (COC) (COD) is gone
Except rate reaches more than 75%.
Embodiment 2
A kind of method for handling methylene blue waste water, comprises the following steps：
(1) the aqueous solution of methylene blue 80ml for taking concentration to be 100mg/L is placed in beaker.
(2) addition concentration is 40g/L tannin aqueous acid 0.3ml in the solution first obtained to step (1) and concentration is
20g/L calcium chloride water 0.4ml, at room temperature, 30s is stirred with 200r/min rotating speed, is well mixed, it is water-soluble to obtain dyestuff
Liquid.
(3) the aqueous dye solutions pH to 9-10 obtained with the NaOH aqueous solution regulating step (2) that concentration is 40%, with
200r/min rotating speed stirring 30s, after stable blue particle shape flocculate is formed in solution.
(4) ferroso-ferric oxide (Fe is added in 1.25g/L ratio in the aqueous solution obtained again to step (3)3O4) powder
0.1g and concentration are 920g/L ferric trichlorides (Fecl3) aqueous solution 0.05ml, then with concentration be 40% sodium hydroxide (NaOH)
PH to 9-10 is adjusted, 30s is stirred with 200r/min rotating speed, after standing 30s, magnetic separation is carried out to flocculate using magnet,
Flocculate can be realized from the aqueous solution and efficiently separated after 1min.
Tannin aqueous acid used needs matching while using, deposits and is not to be exceeded 12 hours under normal temperature, and storage for a long time can be single
Peaceful acid can hydrolyze, and influence treatment effect.
The assay method of indices：
Percent of decolourization determines：Absorbance measuring instrument is ultraviolet-visible spectrophotometer, is existed using AAS
Absorbance of the wavelength as after methylene blue waste water is measured at 502nm before treatment is set, percent of decolourization is calculated by formula.
Chemical oxygen consumption (COC) determines：Using the determination method of national standard GB11914-89 CODs to methylene before and after the processing
COD (COD) in blue waste water is measured, and the COD (COD) for calculating methylene blue waste water before and after the processing is dense
Degree.
Water treatment effect such as table 1：
The water treatment effect parameter lookup table of table 1
As can be seen from Table 1, gone using the method for handling methylene blue waste water of the embodiment of the present invention 2, methylene blue
Except rate is 97.0%, chemical oxygen consumption (COC) clearance is 75.2%.
Embodiment 3
A kind of method for handling methylene blue waste water, comprises the following steps：
(1) the aqueous solution of methylene blue 80ml for taking concentration to be 50mg/L is placed in beaker；
(2) addition concentration is 40g/L tannin aqueous acid 0.3ml in the solution first obtained to step (1) and concentration is
20g/L calcium chloride water 0.4ml, at room temperature, 30s is stirred with 150-200r/min rotating speed, is well mixed, obtains dyestuff water
Solution；
(3) with the obtained aqueous dye solutions pH of sodium hydroxide (NaOH) aqueous solution regulating step (2) that concentration is 40% extremely
9-10,30s is stirred with 150-200r/min rotating speed, after stable blue particle shape flocculate is formed in solution；
(4) Fe is added in 1.25g/L ratio in the aqueous solution obtained again to step (3)3O4Powder 0.1g and concentration are
920g/L ferric trichlorides (Fecl3) aqueous solution 0.05ml, then wastewater pH is adjusted to 9-10 with the NaOH that concentration is 40%, with 150-
200r/min rotating speed stirring 2min, after standing 30s, magnetic separation is carried out to flocculate using magnet, will can be wadded a quilt with cotton after 1-5min
Condensate is realized from the aqueous solution and efficiently separated.
Tannin aqueous acid used needs matching while using, deposits and is not to be exceeded 12 hours under normal temperature, and storage for a long time can be single
Peaceful acid can hydrolyze, and influence treatment effect.
The assay method of indices：
Percent of decolourization determines：Absorbance measuring instrument is ultraviolet-visible spectrophotometer, is existed using AAS
Absorbance of the wavelength as after methylene blue waste water is measured at 502nm before treatment is set, percent of decolourization is calculated by formula.
Chemical oxygen consumption (COC) determines：Using the determination method of national standard GB11914-89 CODs to methylene before and after the processing
COD (COD) in blue waste water is measured, and the COD (COD) for calculating methylene blue waste water before and after the processing is dense
Degree.
The water treatment effect parameter lookup table of table 2
As can be seen from Table 2, gone using the method for handling methylene blue waste water of the embodiment of the present invention 3, methylene blue
Except rate is 97.7%, chemical oxygen consumption (COC) clearance is 77.1%.
Contrast experiment's example
A kind of method for handling methylene blue waste water, comprises the following steps：
(1) the aqueous solution of methylene blue 80ml for taking concentration to be 100mg/L is placed in beaker.
(2) it is 40g/L tannin aqueous acid 0.3ml concentration to be added in the solution first obtained to step (1), does not add chlorination
Calcium, at room temperature, 30s is stirred with 150-200r/min rotating speed, is well mixed, obtains aqueous dye solutions.
(3) with the obtained aqueous dye solutions pH of sodium hydroxide (NaOH) aqueous solution regulating step (2) that concentration is 40% extremely
9-10,30s is stirred with 150-200r/min rotating speed.
(4) ferroso-ferric oxide (Fe is added in 1.25g/L ratio in the aqueous solution obtained again to step (3)3O4) powder
0.1g and concentration are 920g/L ferric trichlorides (Fecl3) aqueous solution 0.05ml, then with concentration be 40% sodium hydroxide (NaOH)
The aqueous solution adjusts wastewater pH to 9-10,2min is stirred with 150-200r/min rotating speed, after standing 30s, using magnet to flocculation
Thing carries out magnetic separation, and methylene blue solution percent of decolourization is 0, the chemical oxygen consumption (COC) rise in waste water.
Tannin aqueous acid used needs matching while using, deposits and is not to be exceeded 12 hours under normal temperature, and storage for a long time can be single
Peaceful acid can hydrolyze, and influence treatment effect.
The assay method of indices：
Percent of decolourization determines：Absorbance measuring instrument is ultraviolet-visible spectrophotometer, is existed using AAS
Absorbance of the wavelength as after methylene blue waste water is measured at 502nm before treatment is set, percent of decolourization is calculated by formula.
Chemical oxygen consumption (COC) determines：Using the determination method of national standard GB11914-89 CODs to methylene before and after the processing
COD (COD) in blue waste water is measured, and the COD (COD) for calculating methylene blue waste water before and after the processing is dense
Degree.
The water treatment effect parameter lookup table of table 3
When contrast experiment's example does not add calcium chloride it can be seen from upper table 3, the percent of decolourization of methylene blue dye wastewater and
Clearance is zero, and when not having calcium ion, with metal ion substitution reaction, nothing can not occur this explanation for the phenolic hydroxyl group of tannic acid
Method forms tannate of lime metal complex；Also precipitation adsorption can not be produced in the basic conditions and is produced with methylene blue molecule quiet
Electro Sorb, it is impossible to make methylene blue molecule depart from from the aqueous solution and be effectively separated.Chemical oxygen consumption (COC) in waste water is
Increase, be due to caused by addition tannic acid, due to not forming metal complex with calcium chloride, can not be formed precipitate and from water
In separate, cause the increase of water body organism content.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. it is a kind of handle methylene blue waste water method, it is characterised in that it is described processing methylene blue waste water method include with
Lower step：
(1) tannic acid is added separately to mix and react in methylene blue waste water with calcium salt；
(2) reactant obtained in step (1) is adjusted into pH to 9-10 with alkaline aqueous solution, mixes and react to form blue precipitate
Thing；
(3) Magnaglo is added in the reactant obtained into step (2) and flocculant carries out flocculation sediment；
(4) flocculation sediment obtained in step (3) is separated and removed using magnet, complete the place to methylene blue waste water
Reason.
2. the method for processing methylene blue waste water according to claim 1, it is characterised in that in step (1), the methylene
The concentration of base indigo plant waste water is 5-100mg/L；The tannic acid is vegatable tannin acid.
3. the method for processing methylene blue waste water according to claim 1, it is characterised in that tannin described in step (1)
The addition of acid is addition 0.088mmol tannic acid in every liter of methylene blue waste water.
4. the method for processing methylene blue waste water according to claim 1, it is characterised in that calcium salt described in step (1)
For calcium chloride, calcium sulfate, calcium carbonate or calcium nitrate, the addition of the calcium salt is to be added in every liter of methylene blue waste water
0.9mmol calcium salts.
5. the method for processing methylene blue waste water according to claim 1, it is characterised in that alkaline described in step (2)
The aqueous solution is sodium hydrate aqueous solution, and the concentration of the sodium hydrate aqueous solution is 40%.
6. the method for processing methylene blue waste water according to claim 1, it is characterised in that the magnetic described in step (3)
Property powder is ferroferric oxide powder.
7. the method for processing methylene blue waste water according to claim 1, it is characterised in that the wadding described in step (3)
Solidifying agent is ferric trichloride, ferric sulfate, bodied ferric sulfate, poly-ferric chloride, aluminum sulfate or polyaluminium sulfate.
8. according to the method for the processing methylene blue waste water described in claim 1, it is characterised in that the magnetic described in step (3)
The addition of powder is that 1.25g Magnaglos are added in every liter of methylene blue waste water；The addition of the flocculant is every liter of Asia
3.5mmol flocculants are added in methyl blue waste water.
9. the method for processing methylene blue waste water according to claim 1, it is characterised in that in step (3), the flocculation
Be precipitated as first carrying out whipping process, then carry out standing process, the speed of the stirring is 150-200r/min, the stirring when
Between be 10s-30s, the time of the standing is 30s-50s.
10. the method for processing methylene blue waste water according to claim 1, it is characterised in that in step (4), the magnetic
Iron is permanent magnet or electromagnet.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109942071A (en) * | 2019-04-23 | 2019-06-28 | 天津华勘环保科技有限公司 | A method for tannic acid-stabilized nanoscale zero-valent iron to enhance persulfate degradation of open-chain chlorinated hydrocarbons |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5158711A (en) * | 1990-01-09 | 1992-10-27 | Mitsubishi Nuclear Fuel Co. | Insoluble tannin preparation process, waste treatment process employing insoluble tannin and adsorption process using tannin |
| CN101723501A (en) * | 2009-12-08 | 2010-06-09 | 哈尔滨工业大学 | Coagulation method for processing water body containing plant polyphenol tannate |
| CN105601057A (en) * | 2016-03-22 | 2016-05-25 | 湖南大学 | Method for treating methylene blue-containing wastewater |
| WO2016126149A3 (en) * | 2015-02-05 | 2016-09-29 | Universite Hassan Premier Settat | Elimination of methylene blue by means of an environmentally friendly method combining adsorption-bioflocculation |
-
2017
- 2017-08-21 CN CN201710720314.2A patent/CN107381925B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5158711A (en) * | 1990-01-09 | 1992-10-27 | Mitsubishi Nuclear Fuel Co. | Insoluble tannin preparation process, waste treatment process employing insoluble tannin and adsorption process using tannin |
| CN101723501A (en) * | 2009-12-08 | 2010-06-09 | 哈尔滨工业大学 | Coagulation method for processing water body containing plant polyphenol tannate |
| WO2016126149A3 (en) * | 2015-02-05 | 2016-09-29 | Universite Hassan Premier Settat | Elimination of methylene blue by means of an environmentally friendly method combining adsorption-bioflocculation |
| CN105601057A (en) * | 2016-03-22 | 2016-05-25 | 湖南大学 | Method for treating methylene blue-containing wastewater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109942071A (en) * | 2019-04-23 | 2019-06-28 | 天津华勘环保科技有限公司 | A method for tannic acid-stabilized nanoscale zero-valent iron to enhance persulfate degradation of open-chain chlorinated hydrocarbons |
| CN109942071B (en) * | 2019-04-23 | 2022-07-01 | 天津大学 | Method for degrading open-chain chlorinated hydrocarbon by using tannin-stable nanoscale zero-valent iron-reinforced persulfate |
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