CN103599746A - Method for preparing natural ore soil loaded nanometer arsenic removal agent - Google Patents
Method for preparing natural ore soil loaded nanometer arsenic removal agent Download PDFInfo
- Publication number
- CN103599746A CN103599746A CN201310537607.9A CN201310537607A CN103599746A CN 103599746 A CN103599746 A CN 103599746A CN 201310537607 A CN201310537607 A CN 201310537607A CN 103599746 A CN103599746 A CN 103599746A
- Authority
- CN
- China
- Prior art keywords
- arsenic
- natural ore
- ore deposit
- preparation
- deposit soil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910052785 arsenic Inorganic materials 0.000 title claims abstract description 96
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 title claims abstract description 94
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 50
- 239000002689 soil Substances 0.000 title claims description 59
- 238000000034 method Methods 0.000 title description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000000243 solution Substances 0.000 claims abstract description 45
- 238000003756 stirring Methods 0.000 claims abstract description 31
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 20
- 238000002360 preparation method Methods 0.000 claims abstract description 19
- 238000005245 sintering Methods 0.000 claims abstract description 19
- 238000001914 filtration Methods 0.000 claims abstract description 16
- 239000003513 alkali Substances 0.000 claims abstract description 7
- 239000012266 salt solution Substances 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 31
- 239000000843 powder Substances 0.000 claims description 31
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 24
- 239000002245 particle Substances 0.000 claims description 19
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 238000005469 granulation Methods 0.000 claims description 15
- 230000003179 granulation Effects 0.000 claims description 15
- 239000011324 bead Substances 0.000 claims description 14
- 150000003839 salts Chemical class 0.000 claims description 14
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 10
- 229910021645 metal ion Inorganic materials 0.000 claims description 10
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 9
- 159000000013 aluminium salts Chemical class 0.000 claims description 8
- 229910000329 aluminium sulfate Inorganic materials 0.000 claims description 8
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 8
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 6
- 229960000892 attapulgite Drugs 0.000 claims description 6
- 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 description 6
- YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Chemical compound [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 claims description 6
- 159000000003 magnesium salts Chemical class 0.000 claims description 6
- 229910052625 palygorskite Inorganic materials 0.000 claims description 6
- 239000011833 salt mixture Substances 0.000 claims description 6
- 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 5
- 239000005995 Aluminium silicate Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 235000012211 aluminium silicate Nutrition 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
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 5
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 5
- 235000011147 magnesium chloride Nutrition 0.000 claims description 5
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-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
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 claims description 3
- PVFSDGKDKFSOTB-UHFFFAOYSA-K iron(3+);triacetate Chemical compound [Fe+3].CC([O-])=O.CC([O-])=O.CC([O-])=O PVFSDGKDKFSOTB-UHFFFAOYSA-K 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 2
- 239000000440 bentonite Substances 0.000 claims description 2
- 229910000278 bentonite Inorganic materials 0.000 claims description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 2
- WCOATMADISNSBV-UHFFFAOYSA-K diacetyloxyalumanyl acetate Chemical compound [Al+3].CC([O-])=O.CC([O-])=O.CC([O-])=O WCOATMADISNSBV-UHFFFAOYSA-K 0.000 claims description 2
- VEPSWGHMGZQCIN-UHFFFAOYSA-H ferric oxalate Chemical compound [Fe+3].[Fe+3].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O VEPSWGHMGZQCIN-UHFFFAOYSA-H 0.000 claims description 2
- UEGPKNKPLBYCNK-UHFFFAOYSA-L magnesium acetate Chemical compound [Mg+2].CC([O-])=O.CC([O-])=O UEGPKNKPLBYCNK-UHFFFAOYSA-L 0.000 claims description 2
- 239000011654 magnesium acetate Substances 0.000 claims description 2
- 235000011285 magnesium acetate Nutrition 0.000 claims description 2
- 229940069446 magnesium acetate Drugs 0.000 claims description 2
- UHNWOJJPXCYKCG-UHFFFAOYSA-L magnesium oxalate Chemical compound [Mg+2].[O-]C(=O)C([O-])=O UHNWOJJPXCYKCG-UHFFFAOYSA-L 0.000 claims description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 2
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 2
- 235000006408 oxalic acid Nutrition 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 14
- 239000002086 nanomaterial Substances 0.000 abstract description 13
- 238000010298 pulverizing process Methods 0.000 abstract description 2
- 239000002352 surface water Substances 0.000 abstract description 2
- 238000001035 drying Methods 0.000 abstract 2
- 238000005054 agglomeration Methods 0.000 abstract 1
- 230000002776 aggregation Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 238000004065 wastewater treatment Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 27
- 239000007864 aqueous solution Substances 0.000 description 18
- 238000013019 agitation Methods 0.000 description 12
- 235000011118 potassium hydroxide Nutrition 0.000 description 7
- 235000011121 sodium hydroxide Nutrition 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000003651 drinking water Substances 0.000 description 5
- 235000020188 drinking water Nutrition 0.000 description 5
- 235000012216 bentonite Nutrition 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 4
- 229910002588 FeOOH Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 2
- 150000001495 arsenic compounds Chemical class 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 230000002779 inactivation Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 201000009030 Carcinoma Diseases 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229940010698 activated attapulgite Drugs 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002389 environmental scanning electron microscopy Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 235000014413 iron hydroxide Nutrition 0.000 description 1
- MVFCKEFYUDZOCX-UHFFFAOYSA-N iron(2+);dinitrate Chemical compound [Fe+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MVFCKEFYUDZOCX-UHFFFAOYSA-N 0.000 description 1
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 201000005202 lung cancer Diseases 0.000 description 1
- 208000020816 lung neoplasm Diseases 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000000247 postprecipitation Methods 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
Images
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Abstract
本发明公开了一种天然矿土负载纳米除砷剂的制备方法，包括将天然矿土加入金属盐溶液，再向其中加入碱溶液中，搅拌使其充分反应；过滤分离得到的产物进行清洗、干燥、粉碎、造粒制成直径为0.5mm-1.5mm的圆形小球，最后再烘干、烧结、自然冷却至室温即得天然矿土负载纳米除砷剂。本发明的除砷剂具有大比表面，能够提供较多的活性位点实现对砷高吸附容量，防止了纳米材料的团聚并避免对水体的二次污染，可广泛应用于高砷地表水净化处理、含砷污水处理等方面。
The invention discloses a preparation method of a natural ore-loaded nano arsenic-removing agent, which comprises adding the natural ore into a metal salt solution, adding an alkali solution to it, stirring to make it fully react; filtering and separating the obtained product to wash, Drying, pulverizing, and granulating to make round balls with a diameter of 0.5mm-1.5mm, and finally drying, sintering, and natural cooling to room temperature to obtain the natural ore-loaded nano-arsenic removal agent. The arsenic removal agent of the present invention has a large specific surface, can provide more active sites to achieve high adsorption capacity for arsenic, prevents the agglomeration of nanomaterials and avoids secondary pollution to water bodies, and can be widely used in the purification of high-arsenic surface water Treatment, arsenic wastewater treatment, etc.
Description
Technical field
The present invention relates to a kind of arsenic removing agent, be specifically related to the preparation method of a kind of natural ore deposit soil loaded with nano arsenic removing agent.
Background technology
Arsenic compound is easily at people's cylinder accumulation, cause acute or slow poisoning, the drinking water that long-term drinking arsenic exceeds standard can cause organism metabolism approach to be obstructed, be detrimental to health, cause special endemic disease--" arsenic sick ", arsenic compound still causes the mankind to suffer from one of chief threat of lung cancer, cutaneum carcinoma and other internal organ cancer.China's drinking water type Endemic Arsenism Areas is mainly distributed in the provinces such as Shanxi, the Inner Mongol, Xinjiang, Ningxia, Jilin, Sichuan, Anhui, Qinghai, Heilungkiang, Henan, Shandong at present.Therefore the arsenic of, effectively removing in water body is the important topic that is related to environment and human health.
The method of removing at present arsenic in water is more, as Coagulation Method, absorption method, ion-exchange, film method and biological arsenic removal method etc., because absorption method becomes the prefered method of arsenic removal because of advantages such as reliable for effect, easy and simple to handle, relatively economicals.Utilize absorption method to process adsorption efficiency and use cost that the key of arsenic in water is sorbing material, and existing conventional sorbing material exist the deficiency that the rate of adsorption is slow, adsorption capacity is low and use cost is higher.
Chinese patent 200810021835.X, name is called attapulgite arsenic removing agent, and it discloses by modified attapulgite clay, activated attapulgite, calcium hydroxide, iron chloride and potassium permanganate and has formed by the arsenic removing agent mixing, abrasive dust is made.During use, be directly attapulgite arsenic removing agent to be sprinkled into water body to stir, attapulgite arsenic removing agent produces chemical reaction with arsenic, fluorine and the heavy metal such as plumbous in water body, and produce and flocculate rapidly, by heavy metal flocculation parcel postprecipitations such as arsenic, fluorine and lead, arsenic in water is had to certain removal effect, but the arsenic removing agent that combines arsenic is still retained in water body, and in arsenic removing agent, the powder such as other component attapulgites, calcium hydroxide is because grain fineness is less than 0.074mm, also can be retained in water body, also be difficult to remove, these all can bring secondary pollution to water body.
Nano material because its yardstick is little, the advantage such as large, the high adsorption capacity of specific area is in widespread attention in arsenic-containing water is processed.Yet in actual applications,, because mostly nano material is fine-powder, in the time of in being put into water, these fine particles are easy to reunite and inactivation, thereby cause absorption property to decline.And, thereby after water treatment, need Separation of Solid and Liquid to increase cost.In addition, in actual use, pure nano material is difficult to reclaim and recycling, once recovery is not thorough, by causing the nano material of having adsorbed arsenic to be retained in water, causes secondary pollution.
Summary of the invention
For solving problems of the prior art, the object of the present invention is to provide the preparation method of a kind of natural ore deposit soil loaded with nano arsenic removing agent, solved the problem of nano material reunion inactivation and secondary pollution water body, improve the adsorption capacity to arsenic.
The technical solution adopted in the present invention:
A preparation method for natural ore deposit soil loaded with nano arsenic removing agent, comprises the following steps:
(1) natural ore deposit soil is added to metal salt solution, stir and make ionizable metal salt enter evenly, fully in the duct of natural ore deposit soil;
(2) in (1), add in aqueous slkali, stir it is fully reacted;
(3) film that is 1 micron by aperture after reaction solution in (2) is standing carries out isolated by filtration and obtains product;
(4) be dried again, pulverize after separated product water in (3) is cleaned to such an extent that particle diameter is less than the powder of 0.1mm;
(5) utilize comminutor that powder granulation in (4) is made to the circular bead that diameter is 0.5mm-1.5mm, oven dry, sintering, naturally cool to room temperature and obtain natural ore deposit soil loaded with nano arsenic removing agent.
Further, metal salt solution is that the concentration that is dissolved in the metal ion that water forms by slaine is 0.2-10mol/L in described step (1).
Further, in described step (1), slaine is the salt-mixture of salt-mixture, molysite and magnesium salts or the salt-mixture of aluminium salt and magnesium salts of molysite, aluminium salt, molysite and aluminium salt.
Further, described molysite is at least one in ferric nitrate, ferric sulfate, iron chloride, ferric acetate or ferric oxalate; Described aluminium salt is at least one in aluminum nitrate, aluminum sulfate, aluminium chloride, aluminium acetate or oxalic acid aluminium; Described magnesium salts is at least one in magnesium nitrate, magnesium sulfate, magnesium chloride, magnesium acetate or magnesium oxalate.
Further, in described step (1), natural ore deposit soil is attapulgite, kaolin, bentonite or diatomite.
Further, in described step (1), the mass ratio of slaine and natural ore deposit soil is 1:10-5:1.
Further, aqueous slkali is to be 0.5-10 mol/L by the alkali alkali concn forming that is dissolved in the water in described step (2), and described alkali is at least one in NaOH, potassium hydroxide or ammoniacal liquor.
Further, the addition of aqueous slkali is that to make the pH value of reaction solution be 7-7.5 in described step (2).
Further, in described step (5), bake out temperature is 100-150 ℃, and sintering temperature is 160-500 ℃.
Natural ore deposit soil is added to metal salt solution, and metal ion is due to the diffusion of self, under stirring state under, its concentration of various piece in solution is basic identical.In addition, the diameter due to metal ion is 10
-10nanoscale, so it is easy to enter in the duct of natural ore deposit soil, under the mutual electrostatic attraction effect between ion, metal ion is adsorbed in the duct of natural ore deposit soil very securely.When separated with membrane filtration, because natural ore deposit soil is the powder of micron dimension, their particle diameter is greater than and filters aperture used is 1 micron membranes, thus by load the natural ore deposit soil of metal ion separate, the metal ion that has neither part nor lot in reaction in solution can be along with water is filtered and separates together.Then separated product is dried, makes metal ion react the iron hydroxide Fe (OH) generating with aqueous slkali
3while being heated, dehydration formation FeOOH (FeOOH) is adsorbed in the duct of ore deposit soil, arsenic (AsO in running into water
4 3-or AsO
3 3-) time, the OH in FeOOH is just by arsenic (AsO
4 3-or AsO
3 3-) substituted, formed FeO(AsO
4 3-) x or FeO(AsO
3 3-) x sediment, be still fixed in the duct of arsenic removing agent, thereby reach the object of arsenic removal.
Arsenic removing agent prepared by the present invention is that to take natural ore deposit soil be carrier, metal ion loads on the duct of ore deposit soil and carries out chemical reaction with aqueous slkali again, then through filtering, after the step such as dry, pulverizing, granulation, oven dry, sintering by load the natural ore deposit soil of nano adsorption material be made into the round of diameter 0.5mm-1.5mm.Pack these particles into Filter column or filter core, at the two ends of Filter column or filter core, all have screen pack, when allowing current normally to pass through, can limit circular arsenic removing agent in Filter column or filter core.After the water that contains arsenic is by Filter column or filter core, in Filter column or filter core, load on nano material on the soil of the ore deposit arsenic in the efficient adsorption aqueous solution optionally under coordination, react with arsenic and generate sediment, sediment is fixed in the duct of arsenic removing agent together with nano material, thereby can effectively remove the arsenic in water.
So natural ore deposit soil loaded with nano arsenic removing agent prepared by the present invention has following beneficial effect:
1, arsenic removing agent of the present invention is after sintering, to form spherical ore deposit soil particle, thereby there is stronger mechanical strength, under the condition of current, still can effectively nano material be fixed in its inner duct, thereby avoid nano material to run off and the adsorption capacity of raising arsenic removing agent.
2, due to many ducts of ore deposit soil particle, can also effectively prevent the reunion of nano material, can avoid causing because nano material is reunited the decline of self absorption property.
3, arsenic removing agent provided by the invention has Large ratio surface, can provide more avtive spot to realize arsenic high-adsorption-capacity, can be widely used in high arsenic surface water purified treatment, contain the aspects such as arsenic sewage disposal.
4, in arsenic removing agent, after the arsenic in adsorption of metal ions water, be fixed on the inside of spherical ore deposit soil particle, avoid its secondary pollution to water body.
5, by arsenic removing agent of the present invention, packed in Filter column or filter core, after its arsenic-adsorbing reaches capacity, again change Filter column or filter core, and without specially reclaiming the nano material of having adsorbed arsenic, it is simple to operate.
6, the preparation method of arsenic removing agent of the present invention is prepared under normal pressure, and technique is simple, safe and reliable, and equipment investment is few, and processing ease is easy to realize extensive preparation.
Accompanying drawing explanation
Fig. 1 is the scanning electron microscope (SEM) photograph of the natural ore deposit soil loaded with nano arsenic removing agent prepared of the present invention;
Fig. 2 is the adsorption isotherm line chart that arsenic removing agent prepared by the present invention removes arsenic test data analyzer;
Fig. 3 is that arsenic removing agent prepared by the present invention is placed in Filter column and carries out the last arsenic concentration of dynamic arsenic removal experiment rear solution with the variation diagram of processing the water yield.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment mono-:
(1) 1088.4 grams of attapulgites are added to (slaine quality is 1088.4g) in 4.5 liters of 1mol/L iron nitrate aqueous solutions, strong agitation 60 minutes, stirs and makes ionizable metal salt enter evenly, fully in the duct of natural ore deposit soil;
(2) 1:1 by volume, to adding in mixed liquor in (1) in the sodium hydrate aqueous solution of 3mol/L until the pH value of reaction solution is 7, stirs 120 minutes, and it is fully reacted;
(3) film that is 1 micron by aperture by reaction solution in (2) after standing 360 minutes carries out isolated by filtration and obtains product;
(4) be dried again, pulverize after separated product water in (3) is cleaned to such an extent that particle diameter is less than the powder of 0.1mm;
(5) utilize comminutor that powder granulation in (4) is made to the circular bead that diameter is 1.0mm, dry 60 minutes in 110 ℃, and then at 300 ℃ of temperature sintering 4 hours, finally naturally cool to room temperature and obtain natural ore deposit soil loaded with nano arsenic removing agent.
What the natural ore deposit soil loaded with nano arsenic removing agent use ESEM (SEM) of embodiment mono-preparation characterized the results are shown in Figure shown in 1.
The natural ore deposit soil loaded with nano arsenic removing agent of embodiment mono-preparation is placed in to the measured adsorption isothermal curve of arsenic-containing water solution (arsenic content is 1-140ppm) as shown in Figure 2.The condition of its test is: the mass volume ratio that arsenic removing agent accounts for arsenic-containing water solution is 0.5g/L, and operating temperature is 25 degree, and pH is 7.
Adsorption isothermal curve as shown in Figure 2 can find out, arsenic removing agent can reach 24mg/g to the adsorption capacity of arsenic in water.
The natural ore deposit soil loaded with nano arsenic removing agent of embodiment mono-preparation is placed in to Filter column arsenic-containing water solution is carried out to dynamic arsenic removal experiment, residual arsenic concentration analysis in its aqueous solution, specifically as shown in Figure 3.
Wherein in the pending aqueous solution, the concentration of arsenic is 200ppb, and pH value is 7, flow velocity 600ml/h, and in Filter column, the volume of filtrate is 50cm
3.In Fig. 3, abscissa represents the ratio of filtrate volume in the volume of handled water and Filter column, and ordinate represents to process the content of arsenic in rear water, and unit is ppb.Two dotted lines that are positioned at 10ppb and 50ppb in figure are respectively the values of national < < drinking water sanitary standard > > (GB5749-2006) defined city and country Arsenic in Drinking Water content.
As can be seen from Figure 3 the filtrate of unit volume can be processed the water of 4900 times of himself volumes, makes the content of arsenic in water lower than 10ppb; After 7300 times of water having processed as arsenic removal filtrate volume, arsenic content after processing in water reaches 50ppb, and it all meets the numerical value of < < drinking water sanitary standard > >.So natural ore deposit prepared by the present invention soil loaded with nano arsenic removing agent can effectively be removed in the water that arsenic exceeds standard arsenic to national standard.
Embodiment bis-
(1) 559.8 grams of attapulgites are added to (slaine quality is 559.8 g) in 3.5 liters of 0.4mol/L ferric sulfate aqueous solutions, strong agitation 50 minutes, stirs and makes ionizable metal salt enter evenly, fully in the duct of natural ore deposit soil;
(2) in mixed liquor in (1) by volume 5:3 add in the sodium hydrate aqueous solution of 4mol/L until the pH value of reaction solution is 7.5, stir 150 minutes, it is fully reacted;
(3) film that is 1 micron by aperture by reaction solution in (2) after standing 360 minutes carries out isolated by filtration and obtains product;
(4) be dried again, pulverize after separated product water in (3) is cleaned to such an extent that particle diameter is less than the powder of 0.1mm;
(5) utilize comminutor that powder granulation in (4) is made to the circular bead that diameter is 1.1mm, dry 50 minutes in 130 ℃, and then at 350 ℃ of temperature sintering 3.5 hours, finally naturally cool to room temperature and obtain natural ore deposit soil loaded with nano arsenic removing agent.
Embodiment tri-
(1) 405.5 grams of attapulgites are added to (slaine quality is 811.01g) in 5 liters of 1mol/L ferric chloride in aqueous solution, strong agitation 90 minutes, stirs and makes ionizable metal salt enter evenly, fully in the duct of natural ore deposit soil; (2) in mixed liquor in (1) by volume 1:1 add in the sodium hydrate aqueous solution of 3mol/L until the pH value of reaction solution is 7, stir 100 minutes, it is fully reacted;
(3) film that is 1 micron by aperture by reaction solution in (2) after standing 360 minutes carries out isolated by filtration and obtains product;
(4) be dried again, pulverize after separated product water in (3) is cleaned to such an extent that particle diameter is less than the powder of 0.1mm;
(5) utilize comminutor that powder granulation in (4) is made to the circular bead that diameter is 0.8mm, dry 70 minutes in 120 ℃, and then at 375 ℃ of temperature sintering 4.5 hours, finally naturally cool to room temperature and obtain natural ore deposit soil loaded with nano arsenic removing agent.
Embodiment tetra-
(1) 297.7 grams of kaolin are added to (slaine quality is 893g) in the solution being formed by 2.7mol ferric nitrate, 1.8mol aluminium chloride and 4.5L water, strong agitation 60 minutes, stirs and makes ionizable metal salt enter evenly, fully in the duct of natural ore deposit soil;
(2) in mixed liquor in (1) by volume 1:2 add in the sodium hydrate aqueous solution of 1.5mol/L until the pH value of reaction solution is 7, stir 120 minutes, it is fully reacted;
(3) film that is 1 micron by aperture by reaction solution in (2) after standing 360 minutes carries out isolated by filtration and obtains product;
(4) be dried again, pulverize after separated product water in (3) is cleaned to such an extent that particle diameter is less than the powder of 0.1mm;
(5) utilize comminutor that powder granulation in (4) is made to the circular bead that diameter is 1.5mm, dry 60 minutes in 110 ℃, and then at 300 ℃ of temperature sintering 4 hours, finally naturally cool to room temperature and obtain natural ore deposit soil loaded with nano arsenic removing agent.
Embodiment five
(1) 219 grams of kaolin are added to (slaine quality is 875.99g) in the solution being formed by 1.2mol ferric acetate, 2.8mol aluminum nitrate and 4L water, strong agitation 80 minutes, stirs and makes ionizable metal salt enter evenly, fully in the duct of natural ore deposit soil;
(2) in mixed liquor in (1) by volume 3:2 add in the potassium hydroxide aqueous solution of 4.5mol/L until the pH value of reaction solution is 7.5, stir 160 minutes, it is fully reacted;
(3) film that is 1 micron by aperture by reaction solution in (2) after standing 360 minutes carries out isolated by filtration and obtains product;
(4) be dried again, pulverize after separated product water in (3) is cleaned to such an extent that particle diameter is less than the powder of 0.1mm;
(5) utilize comminutor that powder granulation in (4) is made to the circular bead that diameter is 1.2mm, dry 80 minutes in 135 ℃, and then at 400 ℃ of temperature sintering 3 hours, finally naturally cool to room temperature and obtain natural ore deposit soil loaded with nano arsenic removing agent.
Embodiment six
(1) 975.1 grams of kaolin are added to (slaine quality is 487.55g) in the solution being formed by 0.7mol ferric sulfate, 1.4mol magnesium nitrate and 3.5L water, strong agitation 50 minutes, stirs and makes ionizable metal salt enter evenly, fully in the duct of natural ore deposit soil;
(2) in mixed liquor in (1) by volume 1:1 add in the potassium hydroxide aqueous solution of 2mol/L until the pH value of reaction solution is 7.5, stir 150 minutes, it is fully reacted;
(3) film that is 1 micron by aperture by reaction solution in (2) after standing 360 minutes carries out isolated by filtration and obtains product;
(4) be dried again, pulverize after separated product water in (3) is cleaned to such an extent that particle diameter is less than the powder of 0.1mm;
(5) utilize comminutor that powder granulation in (4) is made to the circular bead that diameter is 0.9mm, dry 50 minutes in 130 ℃, and then at 350 ℃ of temperature sintering 3.5 hours, finally naturally cool to room temperature and obtain natural ore deposit soil loaded with nano arsenic removing agent.
Embodiment seven
(1) 1770.9 grams of diatomite are added to (slaine quality is 354.18g) in the solution being formed by 0.6mol ferric sulfate, 1.2mol magnesium chloride and 6L water, strong agitation 60 minutes, stirs and makes ionizable metal salt enter evenly, fully in the duct of natural ore deposit soil;
(2) in mixed liquor in (1) by volume 6:2 add in the potassium hydroxide aqueous solution of 3mol/L until the pH value of reaction solution is 7, stir 120 minutes, it is fully reacted;
(3) film that is 1 micron by aperture by reaction solution in (2) after standing 360 minutes carries out isolated by filtration and obtains product;
(4) be dried again, pulverize after separated product water in (3) is cleaned to such an extent that particle diameter is less than the powder of 0.1mm;
(5) utilize comminutor that powder granulation in (4) is made to the circular bead that diameter is 0.5mm, dry 50 minutes in 140 ℃, and then at 450 ℃ of temperature sintering 2.5 hours, finally naturally cool to room temperature and obtain natural ore deposit soil loaded with nano arsenic removing agent.
Embodiment eight
(1) 255.6 grams of diatomite are added in the solution that aluminum nitrate and 5L water by 6mol forms (slaine quality is 1278g), strong agitation 90 minutes, stirs and makes ionizable metal salt enter evenly, fully in the duct of natural ore deposit soil;
(2) in mixed liquor in (1) by volume 5:4 add in 4.5mol sodium hydrate aqueous solution until the pH value of reaction solution is 7, stir 150 minutes, it is fully reacted;
(3) film that is 1 micron by aperture by reaction solution in (2) after standing 360 minutes carries out isolated by filtration and obtains product;
(4) be dried again, pulverize after separated product water in (3) is cleaned to such an extent that particle diameter is less than the powder of 0.1mm;
(5) utilize comminutor that powder granulation in (4) is made to the circular bead that diameter is 0.6mm, dry 80 minutes in 120 ℃, and then at 300 ℃ of temperature sintering 5 hours, finally naturally cool to room temperature and obtain natural ore deposit soil loaded with nano arsenic removing agent.
Embodiment nine
(1) 750 grams of diatomite are added in the solution that aluminum sulfate and 4.5L water by 2.25mol forms (slaine quality is 769.84g), strong agitation 80 minutes, stirs and makes ionizable metal salt enter evenly, fully in the duct of natural ore deposit soil;
(2) in mixed liquor in (1) by volume 2:3 add in 2mol/L potassium hydroxide aqueous solution until the pH value of reaction solution is 7, stir 130 minutes, it is fully reacted;
(3) film that is 1 micron by aperture by reaction solution in (2) after standing 360 minutes carries out isolated by filtration and obtains product;
(4) be dried again, pulverize after separated product water in (3) is cleaned to such an extent that particle diameter is less than the powder of 0.1mm;
(5) utilize comminutor that powder granulation in (4) is made to the circular bead that diameter is 1.3mm, dry 80 minutes in 125 ℃, and then at 350 ℃ of temperature sintering 4.5 hours, finally naturally cool to room temperature and obtain natural ore deposit soil loaded with nano arsenic removing agent.
Embodiment ten
(1) 3200 grams of bentonites are added to (slaine quality is 320g) in the solution being formed by 2.4mol aluminium chloride and 6L water, strong agitation 50 minutes, stirs and makes ionizable metal salt enter evenly, fully in the duct of natural ore deposit soil;
(2) in mixed liquor in (1) by volume 10:4 add in 3mol/L potassium hydroxide aqueous solution until the pH value of reaction solution is 7, stir 140 minutes, it is fully reacted;
(3) film that is 1 micron by aperture by reaction solution in (2) after standing 360 minutes carries out isolated by filtration and obtains product;
(4) be dried again, pulverize after separated product water in (3) is cleaned to such an extent that particle diameter is less than the powder of 0.1mm;
(5) utilize comminutor that powder granulation in (4) is made to the circular bead that diameter is 1.4mm, dry 80 minutes in 120 ℃, and then at 250 ℃ of temperature sintering 6 hours, finally naturally cool to room temperature and obtain natural ore deposit soil loaded with nano arsenic removing agent.
Embodiment 11
(1) 450 grams of bentonites are added to (slaine quality is 625.44g) in the solution being formed by 2.4mol aluminum nitrate, 1.2mol magnesium chloride and 3L water, strong agitation 50 minutes, stirs and makes ionizable metal salt enter evenly, fully in the duct of natural ore deposit soil;
(2) in mixed liquor in (1) by volume 1:1 add in 3.2mol/L sodium hydrate aqueous solution until the pH value of reaction solution is 7, stir 150 minutes, it is fully reacted;
(3) film that is 1 micron by aperture by reaction solution in (2) after standing 360 minutes carries out isolated by filtration and obtains product;
(4) be dried again, pulverize after separated product water in (3) is cleaned to such an extent that particle diameter is less than the powder of 0.1mm;
(5) utilize comminutor that powder granulation in (4) is made to the circular bead that diameter is 0.7mm, dry 70 minutes in 130 ℃, and then at 350 ℃ of temperature sintering 5 hours, finally naturally cool to room temperature and obtain natural ore deposit soil loaded with nano arsenic removing agent.
Embodiment 12
(1) 650 grams of bentonites are added to (slaine quality is 562.92g) in the solution being formed by 1.2mol aluminum sulfate, 1.6mol magnesium chloride and 4L water, strong agitation 60 minutes, stirs and makes ionizable metal salt enter evenly, fully in the duct of natural ore deposit soil;
(2) in mixed liquor in (1) by volume 1:1 add in 2.6mol/L potassium hydroxide aqueous solution until the pH value of reaction solution is 7, stir 140 minutes, it is fully reacted;
(3) film that is 1 micron by aperture by reaction solution in (2) after standing 360 minutes carries out isolated by filtration and obtains product;
(4) be dried again, pulverize after separated product water in (3) is cleaned to such an extent that particle diameter is less than the powder of 0.1mm;
(5) utilize comminutor that powder granulation in (4) is made to the circular bead that diameter is 1.1mm, dry 70 minutes in 125 ℃, and then at 425 ℃ of temperature sintering 3.5 hours, finally naturally cool to room temperature and obtain natural ore deposit soil loaded with nano arsenic removing agent.
Claims (9)
1. a preparation method for natural ore deposit soil loaded with nano arsenic removing agent, is characterized in that: comprise the following steps:
(1) natural ore deposit soil is added to metal salt solution, stir and make ionizable metal salt enter evenly, fully in the duct of natural ore deposit soil;
(2) in (1), add in aqueous slkali, stir it is fully reacted;
(3) film that is 1 micron by aperture after reaction solution in (2) is standing carries out isolated by filtration and obtains product;
(4) be dried again, pulverize after separated product water in (3) is cleaned to such an extent that particle diameter is less than the powder of 0.1mm;
(5) utilize comminutor that powder granulation in (4) is made to the circular bead that diameter is 0.5mm-1.5mm, oven dry, sintering, naturally cool to room temperature and obtain natural ore deposit soil loaded with nano arsenic removing agent.
2. preparation method according to claim 1, is characterized in that: in described step (1), metal salt solution is that by slaine, to be dissolved in the concentration that water forms metal ion be 0.2-10mol/L.
3. preparation method according to claim 1, is characterized in that: in described step (1), slaine is the salt-mixture of salt-mixture, molysite and magnesium salts or the salt-mixture of aluminium salt and magnesium salts of molysite, aluminium salt, molysite and aluminium salt.
4. preparation method according to claim 3, is characterized in that: described molysite is at least one in ferric nitrate, ferric sulfate, iron chloride, ferric acetate or ferric oxalate; Described aluminium salt is at least one in aluminum nitrate, aluminum sulfate, aluminium chloride, aluminium acetate or oxalic acid aluminium; Described magnesium salts is at least one in magnesium nitrate, magnesium sulfate, magnesium chloride, magnesium acetate or magnesium oxalate.
5. preparation method according to claim 1, is characterized in that: in described step (1), natural ore deposit soil is attapulgite, kaolin, bentonite or diatomite.
6. preparation method according to claim 1, is characterized in that: in described step (1), the mass ratio of slaine and natural ore deposit soil is 1:10-5:1.
7. preparation method according to claim 1, is characterized in that: in described step (2), aqueous slkali is that by alkali, to be dissolved in the alkali concn that water forms be 0.5-10 mol/L, and described alkali is at least one in NaOH, potassium hydroxide or ammoniacal liquor.
8. preparation method according to claim 1, is characterized in that: in described step (2), the addition of aqueous slkali is that to make the pH value of reaction solution be 7-7.5.
9. preparation method according to claim 1, is characterized in that: in described step (5), bake out temperature is 100-150 ℃, and sintering temperature is 160-500 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310537607.9A CN103599746A (en) | 2013-11-04 | 2013-11-04 | Method for preparing natural ore soil loaded nanometer arsenic removal agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310537607.9A CN103599746A (en) | 2013-11-04 | 2013-11-04 | Method for preparing natural ore soil loaded nanometer arsenic removal agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103599746A true CN103599746A (en) | 2014-02-26 |
Family
ID=50118045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310537607.9A Pending CN103599746A (en) | 2013-11-04 | 2013-11-04 | Method for preparing natural ore soil loaded nanometer arsenic removal agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103599746A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104275147A (en) * | 2014-09-28 | 2015-01-14 | 云南泛亚能源科技有限公司 | Natural ore soil loaded nano arsenic removal material and preparation method thereof |
| CN104630739A (en) * | 2015-02-15 | 2015-05-20 | 重庆墨希科技有限公司 | Cleaning method of quartz tube in graphene growth furnace tube |
| CN110064371A (en) * | 2019-04-18 | 2019-07-30 | 华东师范大学 | A kind of adsorbent and preparation method and application removing water body inorganic arsenic |
| CN112717895A (en) * | 2020-12-18 | 2021-04-30 | 滨州学院 | Loaded bimetal macroporous resin and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1283517A (en) * | 2000-06-25 | 2001-02-14 | 宁波绿色医疗设备有限公司 | Process for preparing effecient granular adsorbent to adsorb anesthetic gas |
| DE10224410A1 (en) * | 2002-05-30 | 2003-12-18 | Ufz Leipzighalle Gmbh | Sorbent for removing impurities, e.g. arsenic, sulfides, heavy metals and hydrogen sulfide, from aqueous and gaseous phases comprises mineral particles with crust of ferric hydroxide on silicate core |
| CN101163530A (en) * | 2005-04-25 | 2008-04-16 | 加利福尼亚大学董事会 | Compositions and methods for removing arsenic in water |
| CN101423278A (en) * | 2008-11-24 | 2009-05-06 | 中国科学院生态环境研究中心 | Multiple element composite metal oxidate arsenic removal settling agent and use method thereof |
| WO2010003267A1 (en) * | 2008-07-10 | 2010-01-14 | Bibus Ag | Water treatment system with adsorbent material based on mineral grains for removal of arsenic and methods of production, recycling and use |
-
2013
- 2013-11-04 CN CN201310537607.9A patent/CN103599746A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1283517A (en) * | 2000-06-25 | 2001-02-14 | 宁波绿色医疗设备有限公司 | Process for preparing effecient granular adsorbent to adsorb anesthetic gas |
| DE10224410A1 (en) * | 2002-05-30 | 2003-12-18 | Ufz Leipzighalle Gmbh | Sorbent for removing impurities, e.g. arsenic, sulfides, heavy metals and hydrogen sulfide, from aqueous and gaseous phases comprises mineral particles with crust of ferric hydroxide on silicate core |
| CN101163530A (en) * | 2005-04-25 | 2008-04-16 | 加利福尼亚大学董事会 | Compositions and methods for removing arsenic in water |
| WO2010003267A1 (en) * | 2008-07-10 | 2010-01-14 | Bibus Ag | Water treatment system with adsorbent material based on mineral grains for removal of arsenic and methods of production, recycling and use |
| CN101423278A (en) * | 2008-11-24 | 2009-05-06 | 中国科学院生态环境研究中心 | Multiple element composite metal oxidate arsenic removal settling agent and use method thereof |
Non-Patent Citations (3)
| Title |
|---|
| JURATE VIRKUTYTE等编著，郭瑾等译: "《水和废水除微污染技术》", 30 June 2013, article "无机离子交换剂", pages: 103 * |
| 张乃明: "《环境土壤学》", 31 January 2013, article "砷污染", pages: 254 - 255 * |
| 朱洪法等: "《催化剂制备及应用技术》", 30 June 2011 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104275147A (en) * | 2014-09-28 | 2015-01-14 | 云南泛亚能源科技有限公司 | Natural ore soil loaded nano arsenic removal material and preparation method thereof |
| CN104630739A (en) * | 2015-02-15 | 2015-05-20 | 重庆墨希科技有限公司 | Cleaning method of quartz tube in graphene growth furnace tube |
| CN104630739B (en) * | 2015-02-15 | 2017-08-18 | 重庆墨希科技有限公司 | A kind of cleaning method of quartz ampoule in graphene growth boiler tube |
| CN110064371A (en) * | 2019-04-18 | 2019-07-30 | 华东师范大学 | A kind of adsorbent and preparation method and application removing water body inorganic arsenic |
| CN110064371B (en) * | 2019-04-18 | 2021-10-15 | 华东师范大学 | A kind of adsorbent for removing inorganic arsenic in water and preparation method and application |
| CN112717895A (en) * | 2020-12-18 | 2021-04-30 | 滨州学院 | Loaded bimetal macroporous resin and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Shao et al. | Facile synthesis, characterization of a MnFe2O4/activated carbon magnetic composite and its effectiveness in tetracycline removal | |
| CN103301809B (en) | Magnetic carrier iron ordered mesoporous carbon, preparation method and application thereof | |
| CN105381784B (en) | A kind of preparation method and application of magnetic oxygenated graphene composite material | |
| Ji et al. | Sorption enhancement of nickel (II) from wastewater by ZIF-8 modified with poly (sodium 4-styrenesulfonate): Mechanism and kinetic study | |
| Tang et al. | Highly efficient adsorption of uranium (VI) from aqueous solution by a novel adsorbent: titanium phosphate nanotubes | |
| CN105032356B (en) | A kind of hollow ferrimanganic composite materials prepared based on etching template and its application | |
| CN107096494A (en) | A kind of preparation and application method of magnetic core-shell nano-compound adsorbent | |
| CN103212364A (en) | Ferro-manganese composite oxide as well as preparation method and application thereof in removing arsenic in water | |
| CN107824157B (en) | Method for preparing magnetic γ-Fe2O3 adsorption material to remove arsenic in water by using iron manganese mud | |
| CN105413659A (en) | Magnetic bionic adsorbent and application of magnetic bionic adsorbent in treating acid wastewater containing uranium | |
| CN108912330B (en) | Preparation method and application of polypyrrole hollow mesoporous silica microspheres | |
| CN105399176B (en) | A kind of preparation method and applications of sulfonic group modified superparamagnetic nano material | |
| CN102553528B (en) | A modified carbon nanotube material, a method for removing mercury ions in water and a regeneration method thereof | |
| CN107469765A (en) | A kind of preparation method of diatomite/ferrous acid magnesium base composite material | |
| CN109012565A (en) | A kind of method of the magnetic carbon material Adsorption heavy metal ions in wastewater of nitrating | |
| CN103599746A (en) | Method for preparing natural ore soil loaded nanometer arsenic removal agent | |
| CN105457597A (en) | Graphene/silicon dioxide/nano zero-valent iron composite as well as preparation method and application thereof | |
| CN104525091A (en) | A kind of preparation method and application of carboxylated Fe3O4 magnetic nanometer material | |
| CN106064836B (en) | A kind of modified green syt nano-sized iron oxide and its preparation method and application | |
| CN108031440A (en) | A kind of composite material and its preparation and absorption, remove water body in chromium application | |
| CN109174066A (en) | A kind of preparation method of nano lanthanum oxide de-fluoridation adsorbent | |
| CN104353407B (en) | A kind of Fe-Mn system adsorbent and its preparation and application method | |
| CN108927101A (en) | A kind of acicular nanometer FeOOH adsorbent and preparation method thereof | |
| CN102728299B (en) | A kind of titania-doped compound magnetic nano adsorber and its preparation method, application | |
| CN108855017A (en) | A kind of three-dimensional porous titanium dioxide foam block and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140226 |