CA2539543A1 - System and method for removing arsenite and arsenate from water - Google Patents
System and method for removing arsenite and arsenate from water Download PDFInfo
- Publication number
- CA2539543A1 CA2539543A1 CA002539543A CA2539543A CA2539543A1 CA 2539543 A1 CA2539543 A1 CA 2539543A1 CA 002539543 A CA002539543 A CA 002539543A CA 2539543 A CA2539543 A CA 2539543A CA 2539543 A1 CA2539543 A1 CA 2539543A1
- Authority
- CA
- Canada
- Prior art keywords
- water
- approximately
- cupric oxide
- liquid
- arsenate
- 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.)
- Abandoned
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 47
- DJHGAFSJWGLOIV-UHFFFAOYSA-K Arsenate3- Chemical compound [O-][As]([O-])([O-])=O DJHGAFSJWGLOIV-UHFFFAOYSA-K 0.000 title claims abstract description 32
- 229940000489 arsenate Drugs 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 32
- AQLMHYSWFMLWBS-UHFFFAOYSA-N arsenite(1-) Chemical compound O[As](O)[O-] AQLMHYSWFMLWBS-UHFFFAOYSA-N 0.000 title claims abstract description 30
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims abstract description 86
- 229960004643 cupric oxide Drugs 0.000 claims abstract description 31
- 239000002245 particle Substances 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 229910052785 arsenic Inorganic materials 0.000 claims description 41
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims description 41
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- JJLJMEJHUUYSSY-UHFFFAOYSA-L Copper hydroxide Chemical compound [OH-].[OH-].[Cu+2] JJLJMEJHUUYSSY-UHFFFAOYSA-L 0.000 claims description 6
- 239000005750 Copper hydroxide Substances 0.000 claims description 6
- 229910001956 copper hydroxide Inorganic materials 0.000 claims description 6
- 238000005342 ion exchange Methods 0.000 claims description 6
- 230000003647 oxidation Effects 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000008399 tap water Substances 0.000 claims description 2
- 235000020679 tap water Nutrition 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims 2
- 230000001376 precipitating effect Effects 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 description 24
- 239000003651 drinking water Substances 0.000 description 10
- 235000020188 drinking water Nutrition 0.000 description 10
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 7
- 241000894007 species Species 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000001223 reverse osmosis Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000012086 standard solution Substances 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- MHUWZNTUIIFHAS-XPWSMXQVSA-N 9-octadecenoic acid 1-[(phosphonoxy)methyl]-1,2-ethanediyl ester Chemical class CCCCCCCC\C=C\CCCCCCCC(=O)OCC(COP(O)(O)=O)OC(=O)CCCCCCC\C=C\CCCCCCCC MHUWZNTUIIFHAS-XPWSMXQVSA-N 0.000 description 1
- 241000282412 Homo Species 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- NPUVYHNDWLTMSW-UHFFFAOYSA-N OS(O)(=O)=O.OS(O)(=O)=O.OS(O)(=O)=O.[AsH3].[AsH3] Chemical compound OS(O)(=O)=O.OS(O)(=O)=O.OS(O)(=O)=O.[AsH3].[AsH3] NPUVYHNDWLTMSW-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- OWTFKEBRIAXSMO-UHFFFAOYSA-N arsenite(3-) Chemical compound [O-][As]([O-])[O-] OWTFKEBRIAXSMO-UHFFFAOYSA-N 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000000909 electrodialysis Methods 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 235000014413 iron hydroxide Nutrition 0.000 description 1
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical class [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 1
- 239000003621 irrigation water Substances 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- CBXWGGFGZDVPNV-UHFFFAOYSA-N so4-so4 Chemical compound OS(O)(=O)=O.OS(O)(=O)=O CBXWGGFGZDVPNV-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
- C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0233—Compounds of Cu, Ag, Au
- B01J20/0237—Compounds of Cu
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/427—Treatment of water, waste water, or sewage by ion-exchange using mixed beds
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/103—Arsenic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2307/00—Location of water treatment or water treatment device
- C02F2307/06—Mounted on or being part of a faucet, shower handle or showerhead
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Removal Of Specific Substances (AREA)
- Treatment Of Water By Ion Exchange (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US50432903P | 2003-09-19 | 2003-09-19 | |
| US60/504,329 | 2003-09-19 | ||
| PCT/US2004/030491 WO2005028376A1 (en) | 2003-09-19 | 2004-09-17 | System and method for removing arsenite and arsenate from water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2539543A1 true CA2539543A1 (en) | 2005-03-31 |
Family
ID=34375476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002539543A Abandoned CA2539543A1 (en) | 2003-09-19 | 2004-09-17 | System and method for removing arsenite and arsenate from water |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US7897052B2 (https=) |
| EP (1) | EP1678086A4 (https=) |
| JP (1) | JP2007505736A (https=) |
| CN (1) | CN1882507A (https=) |
| AU (1) | AU2004274472B2 (https=) |
| BR (1) | BRPI0414173A (https=) |
| CA (1) | CA2539543A1 (https=) |
| MX (1) | MXPA06003179A (https=) |
| NZ (1) | NZ546332A (https=) |
| WO (1) | WO2005028376A1 (https=) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7235179B2 (en) | 2005-05-09 | 2007-06-26 | University Of Wyoming | Method for removing arsenic from water |
| WO2008152700A1 (ja) | 2007-06-13 | 2008-12-18 | Toyofumi Miyazaki | 超微細粒焼砂生物濾過装置 |
| WO2012042530A1 (en) * | 2010-09-27 | 2012-04-05 | Tata Consultancy Services Limited | Apparatus for water purification |
| US20140291246A1 (en) | 2013-03-16 | 2014-10-02 | Chemica Technologies, Inc. | Selective Adsorbent Fabric for Water Purification |
| EP3825424A1 (en) | 2014-01-31 | 2021-05-26 | Goldcorp Inc. | Process for stabilisation of an arsenic solution comprising thiosulfates |
| CN105521768A (zh) * | 2016-01-13 | 2016-04-27 | 福建汉祥纺织科技有限公司 | 一种具有除砷功能的饮用水净化剂及其制备方法 |
| US20180362361A1 (en) * | 2017-06-20 | 2018-12-20 | Virgil L. Archer | Drinking Water Filter |
| WO2019217683A1 (en) * | 2018-05-10 | 2019-11-14 | Lixivia, Inc. | Compositions and methods for treatment of mine tailings |
| CN110563058A (zh) * | 2019-09-19 | 2019-12-13 | 昆明理工大学 | 一种改性赤泥协同CuO粉处理有色冶炼污酸中砷的方法 |
| CN113354171B (zh) * | 2021-05-13 | 2022-11-08 | 西北矿冶研究院 | 一种从铜冶炼废酸中深度脱砷的工艺方法 |
| CN120189917B (zh) * | 2025-05-26 | 2025-09-30 | 烟台大学 | 一种碳基块状As(III)氧化-吸附材料的制备方法 |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58204826A (ja) | 1982-05-21 | 1983-11-29 | Sumitomo Metal Mining Co Ltd | 亜砒酸イオンの酸化方法 |
| JPS63283725A (ja) * | 1987-05-14 | 1988-11-21 | Tonen Sekiyukagaku Kk | 流体中の砒素除去方法 |
| US4913808A (en) * | 1988-10-03 | 1990-04-03 | Maqsood Haque | Subcompact interchangeable cartridge drinking water purification system |
| DE58906173D1 (de) * | 1989-03-31 | 1993-12-16 | Walhalla Kalk Entwicklungs Und | Verfahren zur Abtrennung von Arsen aus Abwässern. |
| US4962272A (en) * | 1989-05-30 | 1990-10-09 | Aristech Chemical Corporation | Treatment of arsine removal catalysts |
| US4992620A (en) * | 1989-11-21 | 1991-02-12 | Phillips Petroleum Company | Removal of trialkyl arsines from fluids |
| US5149437A (en) * | 1991-03-29 | 1992-09-22 | Wilkinson Theodore L | Water filter |
| US5137640A (en) * | 1991-05-06 | 1992-08-11 | Allied-Signal Inc. | Process for the separation of arsenic acid from a sulfuric acid-containing solution |
| US5348662A (en) * | 1992-05-14 | 1994-09-20 | Elf Atochem North America, Inc. | Process for removing heavy metals from aqueous solutions |
| CA2090989C (en) | 1993-03-04 | 1995-08-15 | Konstantin Volchek | Removal of arsenic from aqueous liquids with selected alumina |
| AU1873195A (en) * | 1994-02-07 | 1995-08-21 | Exxon Chemical Patents Inc. | Removal of carbon monoxide from hydrocarbon streams |
| CA2207039A1 (en) | 1994-12-07 | 1996-06-13 | Mark L. Moskovitz | Acid contacted enhanced adsorbent particle and method of making and using therefor |
| JP2000512205A (ja) | 1996-06-12 | 2000-09-19 | プロジェクト アース インダストリーズ，インコーポレイテッド | 酸接触増強吸着剤および／または触媒ならびにバインダー系 |
| JP3709612B2 (ja) * | 1996-06-20 | 2005-10-26 | 住友化学株式会社 | ヒ酸イオンの除去方法 |
| US6197193B1 (en) * | 1999-10-21 | 2001-03-06 | Virgil L. Archer | Drinking water filter |
| KR100379903B1 (ko) * | 2000-05-30 | 2003-04-14 | 주식회사 명진화학 | 산성 염화동 폐액으로부터 산화동의 제조방법 |
| US7074336B1 (en) * | 2001-06-20 | 2006-07-11 | Sandia Corporation | Inorganic ion sorbents and methods for using the same |
| JP3520342B2 (ja) * | 2001-10-12 | 2004-04-19 | 独立行政法人産業技術総合研究所 | ５価ヒ素イオンの抽出除去方法 |
| JP3912086B2 (ja) * | 2001-11-30 | 2007-05-09 | 栗田工業株式会社 | ヒ素含有廃水の処理装置 |
| US6861002B2 (en) * | 2002-04-17 | 2005-03-01 | Watervisions International, Inc. | Reactive compositions for fluid treatment |
| US7744846B2 (en) * | 2005-03-11 | 2010-06-29 | Philip Morris Usa Inc. | Method for forming activated copper oxide catalysts |
| US7235179B2 (en) * | 2005-05-09 | 2007-06-26 | University Of Wyoming | Method for removing arsenic from water |
-
2004
- 2004-09-17 AU AU2004274472A patent/AU2004274472B2/en not_active Ceased
- 2004-09-17 WO PCT/US2004/030491 patent/WO2005028376A1/en not_active Ceased
- 2004-09-17 MX MXPA06003179A patent/MXPA06003179A/es active IP Right Grant
- 2004-09-17 JP JP2006527057A patent/JP2007505736A/ja active Pending
- 2004-09-17 US US10/572,445 patent/US7897052B2/en active Active
- 2004-09-17 CA CA002539543A patent/CA2539543A1/en not_active Abandoned
- 2004-09-17 CN CNA2004800342747A patent/CN1882507A/zh active Pending
- 2004-09-17 BR BRPI0414173-3A patent/BRPI0414173A/pt not_active Application Discontinuation
- 2004-09-17 EP EP04784374A patent/EP1678086A4/en not_active Ceased
- 2004-09-17 NZ NZ546332A patent/NZ546332A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP1678086A1 (en) | 2006-07-12 |
| JP2007505736A (ja) | 2007-03-15 |
| AU2004274472B2 (en) | 2010-07-08 |
| MXPA06003179A (es) | 2006-06-23 |
| AU2004274472A1 (en) | 2005-03-31 |
| WO2005028376A1 (en) | 2005-03-31 |
| NZ546332A (en) | 2009-09-25 |
| CN1882507A (zh) | 2006-12-20 |
| US20070262023A1 (en) | 2007-11-15 |
| BRPI0414173A (pt) | 2006-10-31 |
| US7897052B2 (en) | 2011-03-01 |
| EP1678086A4 (en) | 2008-01-23 |
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