| Patents for C02F 101 - Nature of the contaminant (7,129) |
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| 08/14/2001 | CA2200464C Process and plant for biodegrading pollutants in water |
| 08/08/2001 | EP0932582B1 Recycle of water from polyvinyl chloride polymerization by treatment with a cation exchange resin |
| 07/11/2001 | CN1303356A Method for recovering fluorinated alkanoic aoids from waste water |
| 06/05/2001 | CA2081767C Formulations for iron oxides dissolution |
| 05/25/2001 | WO2001036338A1 Process and system for treatment of waste streams containing water-soluble polymers |
| 05/10/2001 | WO2001032567A1 Method for treating aqueous effluents containing peroxidized compounds |
| 05/10/2001 | CA2389696A1 Method for treating aqueous effluents containing peroxidized compounds |
| 05/09/2001 | CN1065513C Oxidation of ammonium ions and organic carbon in waste waters |
| 04/25/2001 | EP1093441A1 Method for recovering fluorinated alkanoic acids from waste waters |
| 04/18/2001 | CN1292053A Method for treating process water |
| 04/17/2001 | US6217759 Installation for biochemical sewage treatment |
| 04/04/2001 | CN1064026C Process for purifying sulphide-containing waste water |
| 03/28/2001 | CN1289313A Method and device for the biological treatment of a fluid with biogas generation |
| 02/28/2001 | EP1078885A1 Material for introducing physiologically-essential inorganic elements into drinkable water |
| 01/25/2001 | WO2001005710A1 Method for recovering fluorinated emulsifiers from aqueous phases |
| 01/25/2001 | CA2379931A1 Process for the recovery of fluorinated emulsifiers from aqueous phases |
| 01/18/2001 | DE19933696A1 Verfahren zur Rückgewinnung fluorierter Emulgatoren aus wässrigen Phasen A process for the recovery of fluorinated emulsifiers from aqueous phases |
| 12/28/2000 | WO2000078682A1 Method of decomposing organic compounds in water |
| 12/28/2000 | CA2375245A1 Method of decomposing organic compounds in water |
| 12/21/2000 | WO2000076661A1 Selective separation of iron by treatment with an ion-exchanging resin comprising diphosphonic acid groups |
| 12/21/2000 | CA2374224A1 Selective separation of iron by treatment with an ion-exchanging resin comprising diphosphonic acid groups |
| 12/20/2000 | EP1060306A1 Method for treating process water |
| 12/12/2000 | CA2155106C Wastewater treatment process and apparatus |
| 11/15/2000 | CN1058422C Ion-exchange resin mixed bed removing suspended impure substance |
| 10/10/2000 | US6129849 Process for accelerating reaction of ozone with AM catalyst |
| 10/04/2000 | EP1040083A1 Installation for biochemichal sewage treatment |
| 09/28/2000 | WO2000056666A1 Water purification process |
| 09/28/2000 | CA2368022A1 Water purification process |
| 09/05/2000 | CA2084821C Ground contamination remediation process and apparatus |
| 08/23/2000 | CN1055671C Method for treating waste water from chlorhydrin biology and containing organic chlorid compound |
| 08/22/2000 | CA2027453C Materials for removing suspended impurities and use thereof |
| 07/19/2000 | EP1019327A1 Method for eliminating a nitrogenated heterocyclic, or aromatic, compound in an effluent |
| 07/18/2000 | CA2134127C Device and method to separate components in mixtures of non-miscible liquids |
| 07/12/2000 | EP0915059A4 Process for the electrochemically controlled absorption of soluble organic substances and of heavy metal ions extracted from aqueous solutions, and corresponding apparatus |
| 06/14/2000 | EP0668246B1 Process using the strains of Acinetobacter species (Bicoccum), Arthrobacter species and Rhodococcus species for the biological treatment of oil pollution |
| 05/30/2000 | CA2073568C Purification of solutions |
| 05/24/2000 | EP0746413B1 Rectangular flotation plant |
| 05/10/2000 | EP0998430A1 Method and device for the biological treatment of a fluid with biogas generation |
| 05/03/2000 | EP0997440A2 Process for accelerating reaction of ozone and waste water with a catalyst |
| 04/20/2000 | WO1999057066A8 Method for the intensive desalination of water containing non-dissolved silicon |
| 04/05/2000 | EP0637983B1 Device and method to separate the components in mixtures of non-miscible liquids |
| 03/28/2000 | CA2164090C Process for purifying sulphide-containing waste water |
| 03/21/2000 | US6039873 Controlling oxygen to form gradient with aerobic zone at surface and anoxic zone at bottom of biotank; simultaneously working integrated nitrification and denitrification in combination with an advanced biological p-elimination |
| 03/21/2000 | CA2107689C Method for removing sulphur compounds from water |
| 03/01/2000 | EP0784597B1 Process and arrangement for biodegrading pollutants in water |
| 02/17/2000 | WO2000007945A1 Method for processing mineralised water |
| 12/28/1999 | CA2005680C High performance polymer flocculating agents |
| 12/15/1999 | EP0765332B1 Process for removing waste pox alendronate and its by-products |
| 12/09/1999 | WO1999062830A1 Method for recovering fluorinated alkanoic acids from waste waters |
| 12/09/1999 | DE19824615A1 Verfahren zur Rückgewinnung von fluorierten Alkansäuren aus Abwässern Process for the recovery of fluorinated alkane acids from wastewater |
| 11/24/1999 | EP0881990B1 Process for the thoroughgoing aerobic biological purification of waste water |
| 11/24/1999 | CN1046685C Method for control of biofouling |
| 11/11/1999 | WO1999057066A1 Method for the intensive desalination of water containing non-dissolved silicon |
| 11/04/1999 | WO1999055626A1 Material for introducing physiologically-essential inorganic elements into drinkable water |
| 10/27/1999 | CN1233230A Recycle of water from polyvinyl chloride polymerization by treatment with a cation exchange |
| 10/19/1999 | CA2212763C Electrolytic hydrogen dissolved water, and method and apparatus for production thereof |
| 10/13/1999 | EP0948461A1 Apparatus for the electrochemical treatment of a liquid medium |
| 09/29/1999 | EP0513352B1 Method of cleaning soil water |
| 09/28/1999 | US5958238 Feeding to anerobic digestion system; converting to sulfide; circulating effluent; removing sulfide; converting sulfide to sulfur |
| 09/10/1999 | WO1999045192A1 Method for treating process water |
| 09/10/1999 | CA2322209A1 Method for treating process water |
| 08/05/1999 | WO1999038812A1 Method and device for the biological treatment of a fluid with biogas generation |
| 08/05/1999 | DE19804007A1 Verfahren und Vorrichtung zur biologischen Behandlung eines organisch belasteten Fluids unter Biogasgenerierung Method and apparatus for the biological treatment of organically polluted fluid under generation of biogas |
| 08/04/1999 | EP0932582A1 Recycle of water from polyvinyl chloride polymerization by treatment with a cation exchange resin |
| 07/28/1999 | CN1223969A Process for producing fresh wiping solution and for treating used wiping solution and apparatus for carrying out the process |
| 07/14/1999 | CN1044096C Bubble floatation plant |
| 07/07/1999 | EP0927632A1 Method and device for preparing a fresh cleaning solution and for treating the used solution |
| 07/07/1999 | CN1043963C Oil-absorbing article |
| 06/15/1999 | CA2136200C Water clarifier with first filtrate isolation, improved backwashing and improved bubble generation |
| 05/18/1999 | CA2075790C Method for adsorbing and separating heavy metal elements by using a tannin adsorbent and method of regenerating the adsorbent |
| 05/12/1999 | EP0915059A1 Process for the electrochemically controlled absorption of soluble organic substances and of heavy metal ions extracted from aqueous solutions, and corresponding apparatus |
| 04/21/1999 | CN1043079C Device for analyzing fluid medium |
| 04/15/1999 | WO1999018038A1 Installation for biochemichal sewage treatment |
| 04/15/1999 | CA2305186A1 Installation for biochemichal sewage treatment |
| 04/01/1999 | WO1999015465A1 Method for eliminating a nitrogenated heterocyclic, or aromatic, compound in an effluent |
| 03/10/1999 | CN1210503A Treatment of water containing heavy metal ions |
| 02/25/1999 | WO1999008768A1 Filtration method and device for liquid purification |
| 02/16/1999 | CA2057362C Process for working up aqueous solutions containing hydrogen sulfide, hydrogen cyanide and ammonia |
| 02/02/1999 | CA2175053C Perchlorate removal process |
| 01/07/1999 | EP0681561B1 Wastewater treatment process and apparatus |
| 12/30/1998 | WO1998058880A1 Method and apparatus for the electrochemical treatment of water and aqueous salt solutions |
| 12/22/1998 | US5851399 Process and arrangement for biodegrading pollutants in water |
| 12/16/1998 | CN1041171C Device and method to separate components in mixture of non-miscible liquids |
| 12/09/1998 | EP0881990A1 Process for the thoroughgoing aerobic biological purification of waste water |
| 11/10/1998 | CA2057861C Process for the treatment of water containing sulphur compounds |
| 09/24/1998 | WO1998041477A1 Process for the electrochemically controlled absorption of soluble organic substances and of heavy metal ions extracted from aqueous solutions, and corresponding apparatus |
| 09/09/1998 | EP0641292B1 Water clarifier with first filtrate isolation, improved backwashing and improved bubble generation |
| 09/09/1998 | CN1039701C Method and solid material body for purifying fluids such as water, aqueous fluids and liquid fuels |
| 09/01/1998 | US5800714 Deactivating a water soluble chain transfer agent |
| 08/26/1998 | EP0740582B1 Oil-absorbing article |
| 08/18/1998 | US5795842 Floating aticle |
| 07/07/1998 | CA2068765C Method for the control of biofouling |
| 06/25/1998 | WO1998027013A1 Apparatus for the electrochemical treatment of a liquid medium |
| 06/10/1998 | EP0759012B1 Process for removing polluting material from water or wet solid matter |
| 05/06/1998 | EP0766650B1 Anaerobic removal of sulphur compounds from waste water |
| 04/30/1998 | WO1998017586A1 Recycle of water from polyvinyl chloride polymerization by treatment with a cation exchange |
| 04/30/1998 | CA2269331A1 Recycle of water from polyvinyl chloride polymerization by treatment with a cation exchange |
| 04/28/1998 | CA2058972C Process and installation for treating liquids charged with pollutants |
| 04/08/1998 | EP0751913B1 Process and device for simultaneous biological elimination of phosphorus and nitrogen from waste water |
| 04/02/1998 | WO1998013307A1 Immobilised porous ceramic (ipc) material for the biological purification of wastewater or natural water contaminated by xenobiotics |