ZA200201993B - Process for reducing the concetration of dissolved metals and metalloids in a aqueous solution. - Google Patents
Process for reducing the concetration of dissolved metals and metalloids in a aqueous solution. Download PDFInfo
- Publication number
- ZA200201993B ZA200201993B ZA200201993A ZA200201993A ZA200201993B ZA 200201993 B ZA200201993 B ZA 200201993B ZA 200201993 A ZA200201993 A ZA 200201993A ZA 200201993 A ZA200201993 A ZA 200201993A ZA 200201993 B ZA200201993 B ZA 200201993B
- Authority
- ZA
- South Africa
- Prior art keywords
- ions
- concentration
- metalloid
- aqueous solution
- reducing
- Prior art date
Links
- 229910052752 metalloid Inorganic materials 0.000 title claims description 96
- 238000000034 method Methods 0.000 title claims description 71
- 239000007864 aqueous solution Substances 0.000 title claims description 68
- 150000002738 metalloids Chemical class 0.000 title claims description 22
- 239000002184 metal Substances 0.000 title claims description 21
- 229910052751 metal Inorganic materials 0.000 title claims description 20
- 150000002739 metals Chemical class 0.000 title description 16
- -1 metalloid ions Chemical class 0.000 claims description 147
- 239000011669 selenium Substances 0.000 claims description 88
- 239000000243 solution Substances 0.000 claims description 79
- 150000002500 ions Chemical class 0.000 claims description 65
- 229910052711 selenium Inorganic materials 0.000 claims description 44
- 238000006243 chemical reaction Methods 0.000 claims description 42
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 37
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 34
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims description 27
- 229910052785 arsenic Inorganic materials 0.000 claims description 27
- 239000002002 slurry Substances 0.000 claims description 25
- 239000012527 feed solution Substances 0.000 claims description 23
- 229910052714 tellurium Inorganic materials 0.000 claims description 23
- 229910021645 metal ion Inorganic materials 0.000 claims description 22
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 239000011790 ferrous sulphate Substances 0.000 claims description 9
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 9
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 9
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 5
- 239000000920 calcium hydroxide Substances 0.000 claims description 5
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 5
- 229910001861 calcium hydroxide Inorganic materials 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
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 4
- 239000002244 precipitate Substances 0.000 claims description 4
- 239000004277 Ferrous carbonate Substances 0.000 claims description 3
- 235000019268 ferrous carbonate Nutrition 0.000 claims description 3
- RAQDACVRFCEPDA-UHFFFAOYSA-L ferrous carbonate Chemical compound [Fe+2].[O-]C([O-])=O RAQDACVRFCEPDA-UHFFFAOYSA-L 0.000 claims description 3
- 229960004652 ferrous carbonate Drugs 0.000 claims description 3
- 229960002089 ferrous chloride Drugs 0.000 claims description 3
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 claims description 3
- 229910000015 iron(II) carbonate Inorganic materials 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 239000012266 salt solution Substances 0.000 claims description 3
- 229940082569 selenite Drugs 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 239000010459 dolomite Substances 0.000 claims description 2
- 229910000514 dolomite Inorganic materials 0.000 claims description 2
- IMBKASBLAKCLEM-UHFFFAOYSA-L ferrous ammonium sulfate (anhydrous) Chemical compound [NH4+].[NH4+].[Fe+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O IMBKASBLAKCLEM-UHFFFAOYSA-L 0.000 claims description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims 2
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 claims 2
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 claims 2
- 229910001430 chromium ion Inorganic materials 0.000 claims 2
- 229910001429 cobalt ion Inorganic materials 0.000 claims 2
- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 claims 2
- 229910001431 copper ion Inorganic materials 0.000 claims 2
- 229910001453 nickel ion Inorganic materials 0.000 claims 2
- 229960001781 ferrous sulfate Drugs 0.000 claims 1
- 229940091258 selenium supplement Drugs 0.000 description 40
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 19
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 16
- 239000002585 base Substances 0.000 description 16
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 13
- 229910052742 iron Inorganic materials 0.000 description 11
- 239000011651 chromium Substances 0.000 description 10
- 239000010949 copper Substances 0.000 description 10
- 239000011133 lead Substances 0.000 description 10
- 238000006386 neutralization reaction Methods 0.000 description 10
- 239000002562 thickening agent Substances 0.000 description 10
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 9
- 229910052804 chromium Inorganic materials 0.000 description 9
- 229910017052 cobalt Inorganic materials 0.000 description 9
- 239000010941 cobalt Substances 0.000 description 9
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 9
- 229910052802 copper Inorganic materials 0.000 description 9
- 229910052759 nickel Inorganic materials 0.000 description 9
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 6
- 238000003556 assay Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000011701 zinc Substances 0.000 description 6
- 229910052725 zinc Inorganic materials 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 229910021506 iron(II) hydroxide Inorganic materials 0.000 description 4
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 4
- XHGGEBRKUWZHEK-UHFFFAOYSA-L tellurate Chemical compound [O-][Te]([O-])(=O)=O XHGGEBRKUWZHEK-UHFFFAOYSA-L 0.000 description 4
- PMYDPQQPEAYXKD-UHFFFAOYSA-N 3-hydroxy-n-naphthalen-2-ylnaphthalene-2-carboxamide Chemical compound C1=CC=CC2=CC(NC(=O)C3=CC4=CC=CC=C4C=C3O)=CC=C21 PMYDPQQPEAYXKD-UHFFFAOYSA-N 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- HAYXDMNJJFVXCI-UHFFFAOYSA-N arsenic(5+) Chemical compound [As+5] HAYXDMNJJFVXCI-UHFFFAOYSA-N 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 229910001448 ferrous ion Inorganic materials 0.000 description 3
- 230000001376 precipitating effect Effects 0.000 description 3
- 239000011655 sodium selenate Substances 0.000 description 3
- 235000018716 sodium selenate Nutrition 0.000 description 3
- 229960001881 sodium selenate Drugs 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- DJHGAFSJWGLOIV-UHFFFAOYSA-K Arsenate3- Chemical compound [O-][As]([O-])([O-])=O DJHGAFSJWGLOIV-UHFFFAOYSA-K 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910002588 FeOOH Inorganic materials 0.000 description 1
- 229910021575 Iron(II) bromide Inorganic materials 0.000 description 1
- 229910018143 SeO3 Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- MCDLETWIOVSGJT-UHFFFAOYSA-N acetic acid;iron Chemical compound [Fe].CC(O)=O.CC(O)=O MCDLETWIOVSGJT-UHFFFAOYSA-N 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- VETKVGYBAMGARK-UHFFFAOYSA-N arsanylidyneiron Chemical compound [As]#[Fe] VETKVGYBAMGARK-UHFFFAOYSA-N 0.000 description 1
- 229940000489 arsenate Drugs 0.000 description 1
- AQLMHYSWFMLWBS-UHFFFAOYSA-N arsenite(1-) Chemical compound O[As](O)[O-] AQLMHYSWFMLWBS-UHFFFAOYSA-N 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 235000012206 bottled water Nutrition 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010960 commercial process Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229940046149 ferrous bromide Drugs 0.000 description 1
- 229940076136 ferrous iodide Drugs 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 235000014413 iron hydroxide Nutrition 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- CKFMJXZQTNRXGX-UHFFFAOYSA-L iron(2+);diperchlorate Chemical compound [Fe+2].[O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O CKFMJXZQTNRXGX-UHFFFAOYSA-L 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- GYCHYNMREWYSKH-UHFFFAOYSA-L iron(ii) bromide Chemical compound [Fe+2].[Br-].[Br-] GYCHYNMREWYSKH-UHFFFAOYSA-L 0.000 description 1
- FZGIHSNZYGFUGM-UHFFFAOYSA-L iron(ii) fluoride Chemical compound [F-].[F-].[Fe+2] FZGIHSNZYGFUGM-UHFFFAOYSA-L 0.000 description 1
- BQZGVMWPHXIKEQ-UHFFFAOYSA-L iron(ii) iodide Chemical compound [Fe+2].[I-].[I-] BQZGVMWPHXIKEQ-UHFFFAOYSA-L 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 235000012245 magnesium oxide Nutrition 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical class [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002737 metalloid compounds Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- MCAHWIHFGHIESP-UHFFFAOYSA-L selenite(2-) Chemical compound [O-][Se]([O-])=O MCAHWIHFGHIESP-UHFFFAOYSA-L 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- FZUJWWOKDIGOKH-UHFFFAOYSA-N sulfuric acid hydrochloride Chemical compound Cl.OS(O)(=O)=O FZUJWWOKDIGOKH-UHFFFAOYSA-N 0.000 description 1
- SITVSCPRJNYAGV-UHFFFAOYSA-L tellurite Chemical compound [O-][Te]([O-])=O SITVSCPRJNYAGV-UHFFFAOYSA-L 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002351 wastewater 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
- 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
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
- C02F1/62—Heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/911—Cumulative poison
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/911—Cumulative poison
- Y10S210/912—Heavy metal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/911—Cumulative poison
- Y10S210/912—Heavy metal
- Y10S210/913—Chromium
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Treating Waste Gases (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/420,152 US6177015B1 (en) | 1999-10-18 | 1999-10-18 | Process for reducing the concentration of dissolved metals and metalloids in an aqueous solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200201993B true ZA200201993B (en) | 2003-05-28 |
Family
ID=23665293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200201993A ZA200201993B (en) | 1999-10-18 | 2002-03-11 | Process for reducing the concetration of dissolved metals and metalloids in a aqueous solution. |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US6177015B1 (pt) |
| EP (1) | EP1228005A1 (pt) |
| JP (1) | JP2003512160A (pt) |
| CN (1) | CN1379738A (pt) |
| AU (1) | AU775839B2 (pt) |
| BR (1) | BR0014796A (pt) |
| CA (1) | CA2386940C (pt) |
| MX (1) | MXPA02003674A (pt) |
| RU (1) | RU2238246C2 (pt) |
| WO (1) | WO2001028934A1 (pt) |
| ZA (1) | ZA200201993B (pt) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL150341A0 (en) | 2002-06-20 | 2002-12-01 | Dead Sea Medica Co Ltd | Process and compositions for the purification of water |
| US20100187178A1 (en) * | 2003-01-29 | 2010-07-29 | Molycorp Minerals, Llc | Process for removing and sequestering contaminants from aqueous streams |
| US6863825B2 (en) | 2003-01-29 | 2005-03-08 | Union Oil Company Of California | Process for removing arsenic from aqueous streams |
| US7261820B2 (en) * | 2004-06-23 | 2007-08-28 | General Electric Company | Method for decreasing a concentration of metal in aqueous solution |
| US8066874B2 (en) * | 2006-12-28 | 2011-11-29 | Molycorp Minerals, Llc | Apparatus for treating a flow of an aqueous solution containing arsenic |
| CN101157937B (zh) * | 2007-09-11 | 2010-04-14 | 江南大学 | 一种用于有机废水厌氧发酵提高沼气产量的方法 |
| AU2008316326B2 (en) * | 2007-10-26 | 2013-06-20 | Bhp Billiton Innovation Pty Ltd | Production of nickel |
| US8349764B2 (en) | 2007-10-31 | 2013-01-08 | Molycorp Minerals, Llc | Composition for treating a fluid |
| US8252087B2 (en) * | 2007-10-31 | 2012-08-28 | Molycorp Minerals, Llc | Process and apparatus for treating a gas containing a contaminant |
| US20090107919A1 (en) * | 2007-10-31 | 2009-04-30 | Chevron U.S.A. Inc. | Apparatus and process for treating an aqueous solution containing chemical contaminants |
| US20090107925A1 (en) * | 2007-10-31 | 2009-04-30 | Chevron U.S.A. Inc. | Apparatus and process for treating an aqueous solution containing biological contaminants |
| TW201038510A (en) * | 2009-03-16 | 2010-11-01 | Molycorp Minerals Llc | Porous and durable ceramic filter monolith coated with a rare earth for removing contaminates from water |
| AU2010233100A1 (en) * | 2009-04-09 | 2011-11-03 | Molycorp Minerals Llc | Use of a rare earth for the removal of antimony and bismuth |
| CN102696119A (zh) * | 2009-11-09 | 2012-09-26 | 莫利康普矿物有限责任公司 | 着色剂的稀土脱除 |
| US20110180470A1 (en) * | 2010-01-27 | 2011-07-28 | James Jeffrey Harris | Aqueous iron removal process and apparatus |
| CN101830551B (zh) * | 2010-03-23 | 2012-02-08 | 中国地质大学（武汉） | 一种地下水原位除砷的方法 |
| JP5257469B2 (ja) * | 2011-02-01 | 2013-08-07 | 吉澤石灰工業株式会社 | 排水中の有害物の除去剤とそれを使用した除去方法 |
| US9233863B2 (en) | 2011-04-13 | 2016-01-12 | Molycorp Minerals, Llc | Rare earth removal of hydrated and hydroxyl species |
| CN102621258B (zh) * | 2012-04-09 | 2016-08-03 | 中国科学院生态环境研究中心 | 一种重金属铬形态分离方法 |
| AU2015226889B2 (en) | 2014-03-07 | 2019-09-19 | Secure Natural Resources Llc | Cerium (IV) oxide with exceptional arsenic removal properties |
| CN107129018A (zh) * | 2017-06-27 | 2017-09-05 | 中国科学院沈阳应用生态研究所 | 一种含砷废水中砷的浓缩方法 |
| CN107686891B (zh) * | 2017-08-31 | 2019-10-25 | 武汉理工大学 | 一种去除有色金属溶液中铁元素的方法 |
| JP7338462B2 (ja) * | 2019-12-26 | 2023-09-05 | 三菱マテリアル株式会社 | セレンの回収方法 |
| CN116004988A (zh) * | 2022-12-30 | 2023-04-25 | 中国科学院赣江创新研究院 | 一种从钕铁硼废料回收液中去除亚铁离子的方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4405464A (en) | 1981-08-31 | 1983-09-20 | Kerr-Mcgee Nuclear Corporation | Process for the removal of selenium from aqueous systems |
| US5045214A (en) * | 1983-03-21 | 1991-09-03 | Union Oil Company Of California | Methods for removing substances from aqueous solutions |
| SE452307B (sv) * | 1983-09-12 | 1987-11-23 | Boliden Ab | Forfarande for rening av fororenade vattenlosningar innehallande arsenik och/eller fosfor |
| CA1241774A (en) * | 1984-05-23 | 1988-09-06 | Bruce R. Conard | Effluent treatment |
| US4724084A (en) * | 1986-03-28 | 1988-02-09 | The Boeing Company | System for removing toxic organics and metals from manufacturing wastewater |
| US4806264A (en) | 1987-09-01 | 1989-02-21 | The United Sates Of America As Represented By The Secretary Of The Interior | Method of selectively removing selenium ions from an aqueous solution |
| US5330658A (en) * | 1993-03-17 | 1994-07-19 | Westinghouse Electric Corporation | Solution decontamination method using precipitation and flocculation techniques |
| AUPN895596A0 (en) * | 1996-03-28 | 1996-04-26 | Geo2 Limited | Method of treatment of waste water |
| US5820966A (en) | 1997-12-09 | 1998-10-13 | Inco Limited | Removal of arsenic from iron arsenic and sulfur dioxide containing solutions |
-
1999
- 1999-10-18 US US09/420,152 patent/US6177015B1/en not_active Expired - Lifetime
-
2000
- 2000-07-24 RU RU2002113100A patent/RU2238246C2/ru not_active IP Right Cessation
- 2000-07-24 JP JP2001531729A patent/JP2003512160A/ja not_active Withdrawn
- 2000-07-24 CA CA002386940A patent/CA2386940C/en not_active Expired - Lifetime
- 2000-07-24 BR BR0014796-6A patent/BR0014796A/pt not_active Application Discontinuation
- 2000-07-24 WO PCT/CA2000/000862 patent/WO2001028934A1/en not_active Application Discontinuation
- 2000-07-24 MX MXPA02003674A patent/MXPA02003674A/es active IP Right Grant
- 2000-07-24 EP EP00958050A patent/EP1228005A1/en not_active Withdrawn
- 2000-07-24 AU AU69740/00A patent/AU775839B2/en not_active Ceased
- 2000-07-24 CN CN00814386.2A patent/CN1379738A/zh active Pending
-
2002
- 2002-03-11 ZA ZA200201993A patent/ZA200201993B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BR0014796A (pt) | 2002-06-11 |
| RU2238246C2 (ru) | 2004-10-20 |
| WO2001028934A1 (en) | 2001-04-26 |
| AU775839B2 (en) | 2004-08-19 |
| CA2386940A1 (en) | 2001-04-26 |
| US6177015B1 (en) | 2001-01-23 |
| AU6974000A (en) | 2001-04-30 |
| JP2003512160A (ja) | 2003-04-02 |
| EP1228005A1 (en) | 2002-08-07 |
| CA2386940C (en) | 2007-01-23 |
| MXPA02003674A (es) | 2003-10-14 |
| CN1379738A (zh) | 2002-11-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6177015B1 (en) | Process for reducing the concentration of dissolved metals and metalloids in an aqueous solution | |
| CN109574319B (zh) | 有色金属冶炼高砷污酸的固砷工艺 | |
| US3933635A (en) | Method for removing soluble selenium from acidic waste water | |
| US5820966A (en) | Removal of arsenic from iron arsenic and sulfur dioxide containing solutions | |
| WO1999034926A1 (en) | Method for recovering and separating metals from waste streams | |
| WO2012120197A1 (en) | Method for producing a poorly soluble calcium-arsenic compound | |
| CN110775998A (zh) | 一种工业化回收锌生产纳米氧化锌的系统及方法 | |
| CN113549766A (zh) | 一种铅冶炼烟尘脱砷并回收有价金属的方法 | |
| JP3625270B2 (ja) | 廃棄物の処理方法 | |
| JP3403289B2 (ja) | 製錬中間物に含まれるヒ素分離方法およびヒ素の回収方法 | |
| JPH0625763A (ja) | 製錬中間産物の処理方法 | |
| JPH10509212A (ja) | 金属及び化学的価値の回収方法 | |
| USH1852H (en) | Waste treatment of metal plating solutions | |
| JP3945216B2 (ja) | 廃酸石膏製造方法 | |
| JPS6220868B2 (pt) | ||
| JPH09315819A (ja) | ヒ素を含む硫化物からヒ素を回収する方法及びヒ酸カルシウムを製造する方法 | |
| CN101466855A (zh) | 硫化镍沉淀方法 | |
| JPH0952716A (ja) | めっき廃液からのソフトフェライト用複合酸化物粉末の製造方法 | |
| CN114438341A (zh) | 复配锌粉在硫酸锌溶液除铊中的应用 | |
| ZA200309893B (en) | A method for the removal of metals from an aqueous solution using lime precipitation. | |
| EP0773301B1 (en) | Hydrometallurgical treatment for the purification of waelz oxides through lixiviation with sodium carbonate | |
| JP3632226B2 (ja) | 金属含有排水の処理方法 | |
| CN115849627B (zh) | 一种次氧化锌生产行业窑炉烟气脱硫滤液的处理方法 | |
| US10442715B2 (en) | Chromium-containing water treatment method | |
| CN114873647B (zh) | 一种有色冶炼含砷固废无害化资源化处理的方法 |