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Class Information
Number: 210/688
Name: Liquid purification or separation > Processes > Ion exchange or selective sorption > Removing ions > Heavy metal
Description: Process wherein the constituent is a positively charged ion of a metal whose specific gravity is greater than four.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7413663 |
Water treatment apparatus and method |
Aug. 19, 2008 |
| 7413607 |
Templated semiconductor particles and methods of making |
Aug. 19, 2008 |
| 7407588 |
Method of using stable adsorber granules to remove pollutants from flowable media |
Aug. 5, 2008 |
| 7407587 |
Method and sorbent for selective removal of contaminants from fluids |
Aug. 5, 2008 |
| 7404901 |
Method for the removal of arsenic ions from water |
Jul. 29, 2008 |
| 7404939 |
Mercury removal sorbent |
Jul. 29, 2008 |
| 7399416 |
Reactive filtration |
Jul. 15, 2008 |
| 7396470 |
Treatment of environmental pollutants with mineral ores |
Jul. 8, 2008 |
| 7393454 |
Elimination of metal ions from aqueous effluents |
Jul. 1, 2008 |
| 7390414 |
Regeneration of chemically treated zeolite |
Jun. 24, 2008 |
| 7378372 |
Filter and sorbent for removal of contaminants from a fluid |
May. 27, 2008 |
| 7361279 |
Removing metals from solution using metal binding compounds and sorbents therefor |
Apr. 22, 2008 |
| 7361281 |
High efficiency ion exchange system and method for removing chromium from water |
Apr. 22, 2008 |
| 7341665 |
Process for the treatment of contaminated water based on the use of apolar zeolites having different characteristics |
Mar. 11, 2008 |
| 7341667 |
Process for reduction of inorganic contaminants from waste streams |
Mar. 11, 2008 |
| 7338603 |
Process using rare earths to remove oxyanions from aqueous streams |
Mar. 4, 2008 |
| 7332089 |
Method of extracting metal ions from an aqueous solution utilizing an antimony silicate sorbent |
Feb. 19, 2008 |
| 7332090 |
Process for the removal of mercury from solutions contaminated with mercury |
Feb. 19, 2008 |
| 7323109 |
Composition comprising metal-ion sequestrant |
Jan. 29, 2008 |
| 7314570 |
Method for removing heavy metals from media containing heavy metals by means of a Lyocell moulded body, cellulosic moulded body comprising absorbed heavy metals, and the use of the same |
Jan. 1, 2008 |
| 7314569 |
Treatment of arsenic-contaminated water using akaganeite adsorption |
Jan. 1, 2008 |
| 7311840 |
Inorganic ion exchangers for removing contaminant metal ions from liquid streams |
Dec. 25, 2007 |
| 7309425 |
Apparatus for the preparation of arsenic free water |
Dec. 18, 2007 |
| 7309437 |
Compositions and methods for removal of toxic metals and radionuclides |
Dec. 18, 2007 |
| 7306737 |
Inactivation of microorganisms and virus in liquids and sludge |
Dec. 11, 2007 |
| 7300587 |
Oxidation of heavy metal ions |
Nov. 27, 2007 |
| 7294268 |
Metal containing waste water treatment method and metal containing waste water treatment equipment |
Nov. 13, 2007 |
| 7294275 |
Method of removing phosphorus from wastewater |
Nov. 13, 2007 |
| 7291273 |
Methods for removing metals from plating operation |
Nov. 6, 2007 |
| 7291272 |
Inorganic contaminant removal from water |
Nov. 6, 2007 |
| 7282153 |
Method for removal of arsenic from water |
Oct. 16, 2007 |
| 7282152 |
Selenium removal method |
Oct. 16, 2007 |
| 7273557 |
Method for adsorption and reduction of hexavalent chromium by using ferrous-saponite |
Sep. 25, 2007 |
| 7270796 |
Ammonium/ammonia removal from a stream |
Sep. 18, 2007 |
| 7267776 |
Foams for removing pollutants and/or heavy metals from flowable media |
Sep. 11, 2007 |
| 7252767 |
Hydrous zirconium oxide, hydrous hafnium oxide and method of making same |
Aug. 7, 2007 |
| 7252768 |
Method for eliminating metal halides that are present in a liquid or gaseous, organic or non-organic effluent |
Aug. 7, 2007 |
| 7250067 |
Gas and odour treatment |
Jul. 31, 2007 |
| 7244403 |
Purification of Lutetium 177 |
Jul. 17, 2007 |
| 7238288 |
Method for absorbing an ion from a fluid |
Jul. 3, 2007 |
| 7217755 |
Organic/inorganic nanocomposites, methods of making, and uses as a permeable reactive barrier |
May. 15, 2007 |
| 7214301 |
Filter or filter-element for modified electro-dialysis (MED) purposes |
May. 8, 2007 |
| 7189326 |
Use of material based on organic and/or inorganic fibres and chitosan for fixing metal ions |
Mar. 13, 2007 |
| 7186671 |
Particulate alumina and process for removing metal ions from water |
Mar. 6, 2007 |
| 7163634 |
Compositions for removing metal ions from aqueous process solutions and methods of use thereof |
Jan. 16, 2007 |
| 7160465 |
Materials for removing toxic metals from wastewater |
Jan. 9, 2007 |
| 7157006 |
Method for perchlorate removal from ground water |
Jan. 2, 2007 |
| 7153434 |
Methods for removing contaminants from water and silica from filter media beds |
Dec. 26, 2006 |
| 7153698 |
Field-deployable cartridge method and test kit for arsenic |
Dec. 26, 2006 |
| 7147782 |
Method and apparatus for metal removal by ion exchange |
Dec. 12, 2006 |
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