| Patents for C02F 101 - Nature of the contaminant (7,129) |
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| 02/08/2006 | EP1623753A2 Automatic oxidation-reduction treatment system comprising dissolution of hydrogen gas or oxygen gas in state of colloid solution under reduced pressure and under pressure |
| 02/08/2006 | CN1240625C Highly efficient denitrogenation method for aerobe |
| 02/01/2006 | CN1239413C Method for treatment of waste water containing ammonia using caustic soda as alkali source |
| 02/01/2006 | CN1239412C Enhanced biogas production from nitrogen bearing feed stocks |
| 02/01/2006 | CN1239404C Technology for treating high concentration ammonia nitrogen waste water using membrane based absorption method |
| 01/25/2006 | CN1724405A Process for treating and controlling acid waste water containing fluorine |
| 01/25/2006 | CN1238271C Technological production method of heavy metal waste water series treatment agent |
| 01/25/2006 | CN1238270C Technological method of producing highly toxic heavy metal waste water treatment agent |
| 01/25/2006 | CN1238269C Technological Method of producing toxic heaving metal waste water treatment agent |
| 01/25/2006 | CN1238266C Method for removing vinyl acetate resin from chromium-containing waste solution |
| 01/11/2006 | CN1235813C Method for treating wastewater containing cyanogen |
| 11/29/2005 | CA2392034C Process and system for treatment of waste streams containing water-soluble polymers |
| 11/16/2005 | EP1595587A1 Method of concentrating and removing harmful substance using double-stranded dna and adsorbent and apparatus therefor |
| 11/16/2005 | CN1227166C Method for denitrogenation of water |
| 09/07/2005 | CN1217864C Water treatment method by ozone and chlorine production method by electrolysis of salt |
| 08/31/2005 | CN1662456A Method of purifying Fischer-Tropsch derived water |
| 08/31/2005 | CN1662455A Method of purifying Fischer-Tropsch derived water |
| 08/16/2005 | CA2184750C Rectangular flotation plant |
| 06/30/2005 | US20050139555 Containing oxygenated hydrocarbons, aliphatic, aromatic and cyclic hydrocarbons and inorganic compounds: distillation or liquid-liquid extraction to remove non-acid oxygenated hydrocarbons; and membrane separation process in a secondary stage to remove suspended solids and acidic oxygenated hydrocarbons |
| 06/29/2005 | EP1078885B1 Material for introducing physiologically-essential inorganic elements into drinkable water |
| 06/22/2005 | CN1629078A Electrolytic water containing dissolved hydrogen |
| 06/16/2005 | US20050131083 Method of purifying fischer-tropsch derived water |
| 05/11/2005 | CN1200889C Method and advice for biological treatment of fluid with biogas generation |
| 03/29/2005 | US6872369 Selective separation of iron by treatment with an ion-exchanging resin comprising diphosphonic acid groups |
| 03/09/2005 | CN1191997C Method for recovering fluorinated alkanoic acids from waste water |
| 02/23/2005 | EP1237820B1 Process and system for treatment of waste streams containing water-soluble polymers |
| 02/09/2005 | CN1188351C Electrolytic hydrogen dissolved water, and method and apparartus of production thereof |
| 12/29/2004 | EP1165443B1 Water purification process |
| 12/08/2004 | CN1178865C Water purification process |
| 11/16/2004 | US6818581 Method for water denitrification |
| 11/03/2004 | EP1194238B1 Selective separation of iron by treatment with an ion-exchanging resin comprising diphosphonic acid groups |
| 10/28/2004 | US20040213718 Selective separation of iron by treatment with an ion-exchanging resin comprising diphosphonic acid groups |
| 08/18/2004 | CN1162347C Process for producing fresh wiping solution and for treating used wiping solution and apparatus for carrying out the process |
| 06/24/2004 | US20040118759 Method for water denitrification |
| 05/11/2004 | US6734326 Method of treating aqueous effluents containing peroxidized compounds |
| 04/14/2004 | CN1145587C Method for recovering fluorinated emulsifiers from aqueous phases |
| 03/16/2004 | US6706193 Method for recovering fluorinated emulsifiers from aqueous phases |
| 02/25/2004 | EP1200359B1 Method of decomposing organic compounds in water |
| 02/04/2004 | CN1137307C Method for treating process water |
| 12/30/2003 | US6669847 Method for water denitrification |
| 12/24/2003 | WO2003106351A1 Method of purifying fischer-tropsch derived water |
| 12/24/2003 | WO2003106349A1 Method of purifying fischer-tropsch derived water |
| 11/26/2003 | CN1128678C Selective separation of iron by treatment with long-exchanging resin comprising diphosphonic acid group |
| 09/24/2003 | EP1345857A1 Reclaiming water and usable brine concentrate from domestic sewage |
| 09/23/2003 | US6623615 Electrolytic hydrogen dissolved water and method and apparatus of production thereof |
| 09/16/2003 | CA2137007C Method for removing alkaline sulfate scale |
| 08/19/2003 | US6607664 Treatment of the used solution exiting from the wiping tank or tanks with a chemical agent, producing solution and sedimented ink, separation by settling to produce a clean solution solid waste, using clean solution as wiping solution |
| 08/13/2003 | EP1334072A1 Adsorption container and iron oxide adsorber |
| 07/23/2003 | EP1329250A1 Flocculants for oil-water separation and method for oil-water separation by flocculation |
| 07/10/2003 | WO2003055811A1 Method for treating organic sediments of sewage water |
| 07/08/2003 | CA2114553C Compositions and processes for removing, separating and concentrating desired ions from solutions |
| 06/24/2003 | US6582952 Conversion of nitro group to preferential amine; obtain chemical intermediates, mix in nutrient broths, inoculate with bacillus, propagate, separate bacillus from solution, recover amine |
| 06/18/2003 | CN1424984A Process and system for treatment of wastes streams containing water-soluble polymers |
| 05/28/2003 | CN1420846A Method for treating aqueous effluents contg. peroxidized compounds |
| 05/06/2003 | US6558547 Carrier is an organic ion-exchanger having a porous structure in the air-dry state |
| 04/23/2003 | CN1106353C Waste water treatment process and apparatus |
| 04/16/2003 | EP1078885A4 Material for introducing physiologically-essential inorganic elements into drinkable water |
| 04/09/2003 | CN1105086C Device and process for simultaneous biological elimination of phosphorus and nitrogen from waste water |
| 03/26/2003 | EP1295853A2 Method of treating water and apparatus therefor |
| 03/11/2003 | US6531050 Water purification process |
| 02/13/2003 | US20030029805 Process for producing a fresh wiping solution and for treating a used wiping solution and apparatus for carrying out the process |
| 02/11/2003 | US6518442 A process for the removal of fluorinated emulsifier acids and salts from a wastewater stream that originates from the making of fluoropolymer, which wastewater stream contains finely divided fluoropolymer solids, the process comprising |
| 01/30/2003 | WO2003008346A1 Method for neutralising industrial wastes containing petroleum products and organic components |
| 01/08/2003 | CN1098216C Process for removing polluting material from water or wet solid matter |
| 12/04/2002 | EP1093441B1 Method for recovering fluorinated alkanoic acids from waste waters |
| 11/26/2002 | US6485653 Process for producing a fresh wiping solution and for treating a used solution and apparatus for carrying out the process |
| 10/09/2002 | CN1092152C Method for removing sulfur compound from water |
| 10/02/2002 | CN1091749C Method for removing suspended impurities |
| 09/24/2002 | CA2254406C Process for accelerating reaction of ozone with am catalyst |
| 09/17/2002 | CA2073074C Method for removing hydrocarbon products from the surface of an aqueous medium |
| 09/11/2002 | EP1237820A1 Process and system for treatment of waste streams containing water-soluble polymers |
| 09/04/2002 | CN1367716A Selective separation of iron by treatment with lon-exchanging resin comprising diphosphonic acid groups |
| 08/14/2002 | EP1230174A1 Method for treating aqueous effluents containing peroxidized compounds |
| 07/31/2002 | EP1227065A2 Method of removing exogenous endocrine-disrupting chemical in water |
| 07/31/2002 | CN1361751A Method for recovering fluorinated emulsifiers from aqueous phases |
| 07/17/2002 | CN1087715C Anaerobic removal of sulphur compounds from waste water |
| 07/03/2002 | CN1356963A Method of decomposing organic compounds in water |
| 06/19/2002 | CN1086366C Treatment of water containing heavy metal ions |
| 05/29/2002 | EP1209125A2 Process for recovering fluorinated akanoic acids from wastewater |
| 05/29/2002 | EP1208065A1 Method for recovering fluorinated emulsifiers from aqueous phases |
| 05/28/2002 | US6395173 Method and device for biologically treating a fluid charged with organic materials whilst producing biogas |
| 05/14/2002 | CA2023415C Process for purifying the effluent from urea production plants |
| 05/02/2002 | WO2002034676A1 Method for integrated water treatment |
| 05/02/2002 | EP1200359A1 Method of decomposing organic compounds in water |
| 04/10/2002 | EP1194238A1 Selective separation of iron by treatment with an ion-exchanging resin comprising diphosphonic acid groups |
| 04/10/2002 | CN1344229A Water purification process |
| 03/21/2002 | US20020033366 Method for water denitrification |
| 03/07/2002 | US20020027107 Method for purifying and neutralizing polluted liquids and apparatus for implementing the method |
| 02/27/2002 | CN1079781C Method for clarification of emulsified oil from oil field water |
| 02/06/2002 | EP1178017A2 Method for water denitrification |
| 02/06/2002 | CN1334252A Method for denitrogenation of water |
| 01/15/2002 | CA2106089C Catalysed hypochlorite decomposition process |
| 01/02/2002 | EP1165443A1 Water purification process |
| 12/05/2001 | CN1075793C Process for purifying effluent from urea production plants |
| 11/28/2001 | EP0998430B1 Method and device for the biological treatment of a fluid with biogas generation |
| 10/31/2001 | EP1149803A1 Process for comprehensive decontamination of water |
| 10/17/2001 | EP0706659B1 Device for analyzing a fluid medium |
| 10/02/2001 | US6296744 Apparatus for the electrochemical treatment of a liquid medium |
| 09/18/2001 | US6290812 Adjusting magnecium content of process water;supplying carbonate source to process water to precipiate calcium as calcium carbonate; adding white liquor to precipitate metals; adding flocculating agent; separation by floation |
| 09/18/2001 | CA2108118C Aqueous phase removal of nitrogen from nitrogen compounds |