CA2543958A1 - Process for reduction of inorganic contaminants from waste streams - Google Patents

Process for reduction of inorganic contaminants from waste streams Download PDF

Info

Publication number
CA2543958A1
CA2543958A1 CA002543958A CA2543958A CA2543958A1 CA 2543958 A1 CA2543958 A1 CA 2543958A1 CA 002543958 A CA002543958 A CA 002543958A CA 2543958 A CA2543958 A CA 2543958A CA 2543958 A1 CA2543958 A1 CA 2543958A1
Authority
CA
Canada
Prior art keywords
mercury
liquid stream
used alumina
bed
sorbent
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.)
Granted
Application number
CA002543958A
Other languages
French (fr)
Other versions
CA2543958C (en
Inventor
Claude E. Kennard
Michael A. Gonzalez
David C. Szlag
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
US Environmental Protection Agency
Mar Systems LLC
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2543958A1 publication Critical patent/CA2543958A1/en
Application granted granted Critical
Publication of CA2543958C publication Critical patent/CA2543958C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • 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
    • B01J20/08—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 comprising aluminium oxide or hydroxide; comprising bauxite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/104—Alumina
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/60—Heavy metals or heavy metal compounds
    • B01D2257/602—Mercury or mercury compounds
    • 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
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • 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
    • Y10S210/914—Mercury

Abstract

The invention relates to the use of used alumina to reduce the level of inorganic contaminants, such as mercury and arsenic, from waste fluid streams.
The invention further provides a process for reducing the level of mercury or arsenic in fluid streams by contacting the fluid stream with used alumina, such as used Claus catalyst.

Claims (16)

1. A process for reducing the level of mercury from a liquid stream comprising contacting said liquid stream with used alumina.
2. The process of claim 1, wherein the used alumina is used Claus catalyst.
3. The process of claim 1, wherein the used alumina has a sulfur concentration of at least about 0.1- 25% by weight.
4. A process for reducing the level of mercury from a liquid stream containing mercury, comprising the steps of (a) flowing the liquid stream through a bed containing a sorbent, wherein the sorbent comprises used alumina;
(b) sorbing mercury from the liquid stream onto the surface of the sorbent; and (c) allowing the mercury-depleted effluent stream to exit from the outlet of the bed.
5. The process of claim 4, wherein the used alumina is used Claus catalyst.
6. The process of claim 4, wherein the used alumina has a sulfur concentration of at least about 0.1- 25% by weight.
7. The process of claim 1 or claim 4, wherein the used alumina is crushed prior to being loaded on the bed.
8. The process of claim 7, wherein the used alumina is heated to remove moisture prior to being loaded on the bed.
9. The process of claim 1 or claim 4, wherein at least about 50% of mercury is removed from said liquid stream.
10. The process of claim 1 or claim 4, wherein at least about 75% of mercury is removed from said liquid stream.
11. The process of claim 1 or claim 4, wherein at least about 90% of mercury is removed from said liquid stream.
12. The process of claim 1 or claim 4, wherein the mercury is elemental mercury.
13. The process of claim 1 or claim 4, wherein the mercury is ionic mercury.
14. A process for reducing the level of arsenic from a liquid stream comprising contacting said liquid stream with used alumina.
15. The process of claim 14, wherein the used alumina is used Claus catalyst.
16. A process for reducing the level of arsenic from a liquid stre-am containing arsenic, comprising the steps of (a) flowing the liquid stream through a bed containing a sorbent, wherein the sorbent comprises used alumina;
(b) sorbing mercury from the liquid stream onto the surface of the sorbent; and (c) allowing the arsenic-depleted effluent stream to exit from the outlet of the bed.
CA2543958A 2003-10-31 2004-10-29 Process for reduction of inorganic contaminants from waste streams Expired - Fee Related CA2543958C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US51610803P 2003-10-31 2003-10-31
US60/516,108 2003-10-31
PCT/US2004/036092 WO2005042130A1 (en) 2003-10-31 2004-10-29 Process for reduction of inorganic contaminants from waste streams

Publications (2)

Publication Number Publication Date
CA2543958A1 true CA2543958A1 (en) 2005-05-12
CA2543958C CA2543958C (en) 2012-04-10

Family

ID=34549488

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2543958A Expired - Fee Related CA2543958C (en) 2003-10-31 2004-10-29 Process for reduction of inorganic contaminants from waste streams

Country Status (5)

Country Link
US (3) US7341667B2 (en)
EP (1) EP1682241A4 (en)
CN (1) CN1901982B (en)
CA (1) CA2543958C (en)
WO (1) WO2005042130A1 (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6863825B2 (en) 2003-01-29 2005-03-08 Union Oil Company Of California Process for removing arsenic from aqueous streams
CN1901982B (en) * 2003-10-31 2010-04-21 金属合金回收公司 Process for reduction of inorganic contaminants from waste streams
US8029618B2 (en) * 2004-09-21 2011-10-04 Saudi Arabian Oil Company Manufacture of Portland cement using spent claus catalyst
EP1877770B1 (en) * 2005-05-02 2018-09-12 Thermo Fisher Scientific Inc. Method and apparatus for monitoring mercury in a gas sample
US20070092418A1 (en) * 2005-10-17 2007-04-26 Chemical Products Corporation Sorbents for Removal of Mercury from Flue Gas
US8066874B2 (en) 2006-12-28 2011-11-29 Molycorp Minerals, Llc Apparatus for treating a flow of an aqueous solution containing arsenic
US8252087B2 (en) 2007-10-31 2012-08-28 Molycorp Minerals, Llc Process and apparatus for treating a gas containing a contaminant
US8349764B2 (en) 2007-10-31 2013-01-08 Molycorp Minerals, Llc Composition for treating a fluid
US7846869B2 (en) * 2008-04-23 2010-12-07 China Petroleum & Chemical Corporation Process for pre-treating a desulfurization sorbent
US7906027B2 (en) * 2008-09-26 2011-03-15 Conocophillips Company Mercury removal process
US8535422B2 (en) 2009-01-26 2013-09-17 St. Cloud Mining Company Metal contaminant removal compositions and methods for making and using the same
WO2010096571A2 (en) * 2009-02-20 2010-08-26 Conocophillips Company Selenium removal process
AU2010270695B2 (en) * 2009-07-06 2016-02-25 Cruickshank, Cecilia A. Media for removal of contaminants from fluid streams and method of making and using same
US20120018384A1 (en) * 2010-02-01 2012-01-26 John Sawyer Mercury removal from water
US8734560B2 (en) 2010-09-10 2014-05-27 Harsco Corporation Agricultural blend and process of forming an agricultural blend
US20120241381A1 (en) * 2011-03-21 2012-09-27 Bruso Bruce L Method and apparatus for removal of selenium from water
US9233863B2 (en) 2011-04-13 2016-01-12 Molycorp Minerals, Llc Rare earth removal of hydrated and hydroxyl species
US8524074B2 (en) 2011-08-17 2013-09-03 Nalco Company Removal of mercury and mercuric compounds from crude oil streams
US20140291246A1 (en) 2013-03-16 2014-10-02 Chemica Technologies, Inc. Selective Adsorbent Fabric for Water Purification
EP3113859A4 (en) 2014-03-07 2017-10-04 Secure Natural Resources LLC Cerium (iv) oxide with exceptional arsenic removal properties
US10526215B2 (en) * 2014-07-21 2020-01-07 The Frazer And Cruickshank Living Trust Selenium and other contaminants removal process
US9550148B2 (en) * 2015-06-02 2017-01-24 Paragon Waste Solutions, Llc Heavy metal removal
US10759681B2 (en) 2018-06-28 2020-09-01 Board Of Trustees Of The University Of Arkansas Water purification compositions and the method of producing the same
CN113713757A (en) * 2021-08-30 2021-11-30 华中科技大学 Preparation method and product of high-efficiency mercury adsorbent for waste gas liquid

Family Cites Families (91)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194629A (en) 1962-02-23 1965-07-13 Pittsburgh Activated Carbon Co Method of removing mercury vapor from gases
US4027001A (en) * 1975-06-06 1977-05-31 Asarco Incorporated Process for recovering sulfur from sulfur dioxide
DE2656803C2 (en) 1975-12-18 1986-12-18 Institut Français du Pétrole, Rueil-Malmaison, Hauts-de-Seine Process for removing mercury from a gas or liquid
US4101631A (en) 1976-11-03 1978-07-18 Union Carbide Corporation Selective adsorption of mercury from gas streams
US4344793A (en) 1980-06-03 1982-08-17 Linden Chemicals & Plastics, Inc. Mercury removal process and apparatus
US4608363A (en) 1980-07-21 1986-08-26 Aluminum Company Of America Activated alumina Claus catalyst having increased sodium oxide content
FR2534826A1 (en) 1982-10-26 1984-04-27 Pro Catalyse NEW MASSES OF ABSORPTION FOR THE REMOVAL OF MERCURY HAVING A SUPPORT ON WHICH SULFUR REMOVAL
US4474896A (en) 1983-03-31 1984-10-02 Union Carbide Corporation Adsorbent compositions
NO157543C (en) 1984-10-19 1988-04-06 Norzink As PROCEDURE FOR PURIFICATION OF MERCURY OIL GASES AND RECOVERY OF THE MERCURY OIL IN METALLIC FORM.
NL8600960A (en) 1986-04-16 1987-11-16 Veg Gasinstituut Nv METHOD FOR EXTRACTING SULFUR FROM SULFUR-CONTAINING GASES
US4824576A (en) * 1986-07-14 1989-04-25 Aluminum Company Of America Process for removal, separation and recovery of heavy metal ions from solutions using activated alumina including acid treated activated alumina
DZ1209A1 (en) 1987-05-26 2004-09-13 Inst Francais Du Petrole Process for the preparation and regeneration of a solid mass for the capture of mercury containing copper.
SU1549585A1 (en) * 1988-01-04 1990-03-15 Волго-Уральский научно-исследовательский и проектный институт по добыче и переработке сероводородсодержащих газов Method of regeneration of claus catalyst
FR2628338B1 (en) * 1988-03-10 1991-01-04 Inst Francais Du Petrole PROCESS FOR THE REMOVAL OF MERCURY FROM HYDROCARBONS
US4986898A (en) * 1988-05-16 1991-01-22 Mitsui Petrochemical Industries, Ltd. Method of removing mercury from hydrocarbon oils
US4874525A (en) 1988-10-26 1989-10-17 Uop Purification of fluid streams containing mercury
US5711929A (en) 1989-05-06 1998-01-27 698638 Alberta Ltd. Purification of elemental sulphur
US5242482A (en) 1989-10-26 1993-09-07 Nuova Samim S.P.A. Process for treating spent batteries
US5766567A (en) * 1990-02-13 1998-06-16 Elf Aquitaine Production Method for desulphurising a gaseous mixture containing H2 S and SO.sub.
FR2660936B1 (en) 1990-04-13 1992-09-11 Vieille Montagne France Sa PROCESS FOR THE PREPARATION OF METAL MERCURY FROM CALOMEL.
US5107060A (en) 1990-10-17 1992-04-21 Mobil Oil Corporation Thermal cracking of mercury-containing hydrocarbon
US5064626A (en) 1990-11-28 1991-11-12 Phillips Petroleum Company Trialkyl arsine sorbents
US5085844A (en) * 1990-11-28 1992-02-04 Phillips Petroleum Company Sorption of trialkyl arsines
US5238665A (en) 1991-06-10 1993-08-24 Beco Engineering Company Method for minimizing environmental release of toxic compounds in the incineration of wastes
US5141724A (en) 1991-10-07 1992-08-25 Mobil Oil Corporation Mercury removal from gaseous hydrocarbons
GB9220269D0 (en) 1992-09-25 1992-11-11 Bio Separation Ltd Separation of heavy metals from aqueous media
US5223145A (en) 1992-10-09 1993-06-29 Uop Removal of mercury from process streams
FR2701270B1 (en) 1993-02-08 1995-04-14 Inst Francais Du Petrole Process for removing mercury from hydrocarbons by passing over a presulfurized catalyst.
US5419884A (en) 1993-02-19 1995-05-30 Mobil Oil Corporation Regenerative mercury removal process
US5354357A (en) 1993-03-01 1994-10-11 Uop Removal of mercury from process streams
US5271760A (en) 1993-03-01 1993-12-21 Uop Recovery of liquid mercury from process streams
US5330560A (en) 1993-03-29 1994-07-19 Gas Research Institute Supported sorbents for removal and recovery of arsenic from gases
GB9308538D0 (en) 1993-04-24 1993-06-09 Walker Michael A C Film cleaning apparatus & method
CA2114331C (en) 1993-06-10 2000-03-28 Bernard J. Lerner Removal of mercury and cadmium and their compounds from incinerator flue gases
US5523067A (en) 1993-07-26 1996-06-04 Uop Removal of mercury from naturally occurring streams containing entrained mineral particles
US5360632A (en) * 1993-08-10 1994-11-01 Phillips Petroleum Company Reduced leaching of arsenic and/or mercury from solid wastes
US5360779A (en) * 1993-10-14 1994-11-01 Phillips Petroleum Company Preparation of supported sulfur compositions
US5409522A (en) 1994-04-20 1995-04-25 Ada Technologies, Inc. Mercury removal apparatus and method
US5505766A (en) 1994-07-12 1996-04-09 Electric Power Research, Inc. Method for removing pollutants from a combustor flue gas and system for same
US5670122A (en) 1994-09-23 1997-09-23 Energy And Environmental Research Corporation Methods for removing air pollutants from combustion flue gas
US5507238A (en) 1994-09-23 1996-04-16 Knowles; Bruce M. Reduction of air toxics in coal combustion gas system and method
US5672323A (en) 1995-01-26 1997-09-30 The Babcock & Wilcox Company Activated carbon flue gas desulfurization systems for mercury removal
DE69606977T2 (en) 1995-01-27 2000-07-27 Pioneer Licensing Inc METHOD FOR RECOVERY OF MERCURY
CA2150591C (en) 1995-05-31 2006-03-21 John Daniel Currie Caustic sludge treatment process
US5597729A (en) 1995-04-13 1997-01-28 Martin Marietta Energy Systems, Inc. Method for the removal and recovery of mercury
CH689111A5 (en) 1995-07-10 1998-10-15 Deco Hanulik Ag Process for mercury removal.
JP3291643B2 (en) 1995-07-18 2002-06-10 大成建設株式会社 Mercury removal method
US5667694A (en) 1995-08-28 1997-09-16 Rheox, Inc. Process for the removal of heavy metals from aqueous systems using organoclays
US5601795A (en) 1995-10-31 1997-02-11 Cominco Ltd. Calomel (Hg2 Cl2) purification process
US5795159A (en) 1996-02-02 1998-08-18 The United States Of America As Represented By The Secretary Of The Navy Mercury removal method and apparatus
US5854173A (en) 1996-05-31 1998-12-29 Electric Power Research Institute, Inc. Flake shaped sorbent particle for removing vapor phase contaminants from a gas stream and method for manufacturing same
US5928617A (en) 1996-08-19 1999-07-27 Quick Chemical Specialties Corp. Process for removal of mercury contamination
US5750992A (en) 1996-09-18 1998-05-12 Tennessee Valley Authority Method to compensate for interferences to mercury measurement in gases
US6521131B1 (en) 1996-12-16 2003-02-18 Solmetex, Inc. Combined oxidation and chelating adsorption system for removal of mercury from water
US5989506A (en) 1996-12-18 1999-11-23 Uop Llc Process for the removal and recovery of mercury from hydrocarbon streams
DE19704889C2 (en) 1997-02-10 1999-11-04 Degussa Process for the removal of mercury from alkali alcoholate solutions
GB9702742D0 (en) 1997-02-11 1997-04-02 Ici Plc Gas absorption
US6248217B1 (en) 1997-04-10 2001-06-19 The University Of Cincinnati Process for the enhanced capture of heavy metal emissions
US5827352A (en) 1997-04-16 1998-10-27 Electric Power Research Institute, Inc. Method for removing mercury from a gas stream and apparatus for same
US6117333A (en) 1997-04-22 2000-09-12 Union Oil Company Of California Removal of hydrocarbons, mercury and arsenic from oil-field produced water
US5965095A (en) 1997-05-05 1999-10-12 Electric Power Research Inst. Flue gas humidification and alkaline sorbent injection for improving vapor phase selenium removal efficiency across wet flue gas desulfurization systems
US5989486A (en) 1997-06-25 1999-11-23 Summit Valley Equipment And Engineering, Inc. Apparatus for removal of the mercury from granulated materials
US6103205A (en) 1997-07-11 2000-08-15 Advanced Fuel Research, Inc. Simultaneous mercury, SO2, and NOx control by adsorption on activated carbon
EP0894530B1 (en) 1997-07-28 2003-09-10 Corning Incorporated Mercury removal catalyst and method of making and using same
US5900042A (en) 1997-08-18 1999-05-04 The United States Of America As Represented By The United States Department Of Energy Method for the removal of elemental mercury from a gas stream
US5934091A (en) 1997-10-31 1999-08-10 Century Manufacturing Company Refrigerant recovery and recycling system
US6168768B1 (en) 1998-01-23 2001-01-02 Exxon Research And Engineering Company Production of low sulfer syngas from natural gas with C4+/C5+ hydrocarbon recovery
US6326326B1 (en) 1998-02-06 2001-12-04 Battelle Memorial Institute Surface functionalized mesoporous material and method of making same
US6129843A (en) 1998-11-19 2000-10-10 The United States Of America As Represented By The Secretary Of The Interior Device for the removal and concentration of neutral mercury species from and water
US6156281A (en) 1998-12-04 2000-12-05 Howard University Process for removal of hazardous air pollutants from coal
US6372187B1 (en) 1998-12-07 2002-04-16 Mcdermott Technology, Inc. Alkaline sorbent injection for mercury control
US6328939B1 (en) 1999-03-31 2001-12-11 Mcdermott Technology, Inc. Mercury removal in utility wet scrubber using a chelating agent
US6136281A (en) 1999-03-31 2000-10-24 Tennessee Valley Authority Method to control mercury emissions from exhaust gases
US6284199B1 (en) 1999-03-31 2001-09-04 Mcdermott Technology, Inc. Apparatus for control of mercury
US6244055B1 (en) 1999-06-01 2001-06-12 Century Manufacturing Company Refrigerant recovery and recycling system
DE19926887A1 (en) 1999-06-12 2000-12-14 Bayer Ag Electrolysis process
CH694058A5 (en) 1999-06-18 2004-06-30 Woodwelding Ag Fabric conclusive Connect.
CN1118540C (en) * 1999-09-24 2003-08-20 中国石油化工集团公司 Process for dearsenicating hydrocarbon oil
US6165366A (en) 1999-11-01 2000-12-26 Icet, Inc. Process for removing mercury from industrial and clinical waste water
US6537443B1 (en) 2000-02-24 2003-03-25 Union Oil Company Of California Process for removing mercury from liquid hydrocarbons
US6533842B1 (en) 2000-02-24 2003-03-18 Merck & Co., Inc. Adsorption powder for removing mercury from high temperature, high moisture gas streams
US6268590B1 (en) 2000-03-06 2001-07-31 Summit Valley Equipment And Engineering, Corp. Apparatus and method for continuous retorting of mercury from ores and others mercury contaminated materials
US6491887B1 (en) * 2000-06-13 2002-12-10 Phillips Petroleum Company Supported sulfur compositions and the preparation and use thereof
US6610263B2 (en) 2000-08-01 2003-08-26 Enviroscrub Technologies Corporation System and process for removal of pollutants from a gas stream
NL1017206C2 (en) 2001-01-26 2002-07-29 Cdem Holland Bv Method for removing mercury from a gas stream.
US6360779B1 (en) * 2001-04-11 2002-03-26 Aqueduct Utility Pipe Contractor, Inc. Closure device for a pipe/wall aperture
US7081434B2 (en) 2001-11-27 2006-07-25 Sinha Rabindra K Chemical formulations for the removal of mercury and other pollutants present in fluid streams
CN1901982B (en) * 2003-10-31 2010-04-21 金属合金回收公司 Process for reduction of inorganic contaminants from waste streams
US8029618B2 (en) * 2004-09-21 2011-10-04 Saudi Arabian Oil Company Manufacture of Portland cement using spent claus catalyst
US7160465B2 (en) * 2005-04-21 2007-01-09 The United States Of America As Represented By The Secretary Of The Navy Materials for removing toxic metals from wastewater
US7025887B1 (en) 2005-04-21 2006-04-11 The United States Of America As Represented By The Secretary Of The Navy Sand filter treatment facility and method for removing toxic metals from storm water

Also Published As

Publication number Publication date
EP1682241A1 (en) 2006-07-26
EP1682241A4 (en) 2009-07-15
US20080135487A1 (en) 2008-06-12
CA2543958C (en) 2012-04-10
US7479230B2 (en) 2009-01-20
CN1901982A (en) 2007-01-24
CN1901982B (en) 2010-04-21
US20080135486A1 (en) 2008-06-12
US7341667B2 (en) 2008-03-11
US7449118B2 (en) 2008-11-11
US20050194320A1 (en) 2005-09-08
WO2005042130A1 (en) 2005-05-12

Similar Documents

Publication Publication Date Title
CA2543958A1 (en) Process for reduction of inorganic contaminants from waste streams
US4786483A (en) Process for removing hydrogen sulfide and mercury from gases
US5173286A (en) Fixation of elemental mercury present in spent molecular sieve desiccant for disposal
Koumanova et al. Adsorption of p-chlorophenol from aqueous solutions on bentonite and perlite
BR9307742A (en) Processes for removing dissolved contaminating hydrocarbons from a stream of dumping water, and water contaminated with them, to regenerate adsorbent particles used as adsorbents, and to remove a mixture of dissolved contaminating hydrocarbon solvents from a contaminated water stream
Melo et al. Evaluation of the zinox and zeolite materials as adsorbents to remove H2S from natural gas
ATE399147T1 (en) STABLE ADSORBER GRANULES
Morimoto et al. Characteristics of the mercury vapor removal from coal combustion flue gas by activated carbon using H2S
AU2009298360A1 (en) Removal of heavy metals from hydrocarbon gases
Karthika et al. Biosorption of copper from aqueous solutions using Tridax Procumbens
JPH0149531B2 (en)
Kiurski et al. Adsorption efficiency of low-cost materials in the removal of Zn (II) ions from printing developer
FR2868338B1 (en) ADSORBENT ZEOLITIC COMPOSITION, PROCESS FOR THE PREPARATION AND USE THEREOF FOR THE REMOVAL OF H20 AND / OR H2S FROM GASEOUS OR LIQUID MIXTURES
WO2003031329A3 (en) Claus feed gas hydrocarbon removal
CA2265083A1 (en) Method and apparatus for processing polluted gas containing harmful substances
JP2978251B2 (en) Method for removing mercury from liquid hydrocarbons
JPH043678Y2 (en)
JP2007268392A (en) Treatment method of polluted water
Huber et al. Powdered or granular activated carbon for micropollutant removal
EP0037450B1 (en) Process for the removal of acid and acid precursor gases and vapors from gas streams
SE501971C2 (en) Use of hydrophobic zeolite to purify air containing mercaptans and H2S
RU2152360C1 (en) Method of removing metal ions from sewage
Al-Asheh et al. Packed-bed removal of copper and zinc ions using chemically-treated chicken feathers
JPS5564836A (en) Adsorbent for heavy metals
JPH0698265B2 (en) Exhaust gas purification method and device

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20151029