| Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429) |
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| 02/08/2001 | WO2001009041A2 System for protection of building water supplies against chemical and biological warfare agents |
| 02/07/2001 | EP1074515A2 Electrochemical treatment of an aqueous solution |
| 02/07/2001 | EP1073611A1 Apparatus and process for removing strong oxidizing agents from liquids |
| 02/06/2001 | US6183600 Aqueous suspension of cellulose; deflocculating with cationic acrylamide polymer; mixing with zeolite |
| 02/06/2001 | US6182453 Portable, potable water recovery and dispensing apparatus |
| 02/03/2001 | CA2279525A1 Hybrid biological and chemical process for decontaminating municipal sewage sludge |
| 01/31/2001 | EP1028845A4 System for extracting soluble heavy metals from liquid solutions |
| 01/31/2001 | CN2417167Y Two-purpose and full automatic water tank for purifying water or mineralizing water |
| 01/31/2001 | CN2417166Y Multi-functional, high efficiency equipment for purifying wastemater |
| 01/31/2001 | CN2416843Y Full automatic water purifying machine and supplying cold and hot water |
| 01/31/2001 | CN1282306A Method and device for production of pure water |
| 01/31/2001 | CN1281827A Preparation method of drinking water |
| 01/31/2001 | CN1281826A Method for treating benzene extraction waste liquor in production of caprolactam |
| 01/31/2001 | CN1061324C Method and device for purifying sewage |
| 01/30/2001 | US6180014 Oxidation, removal |
| 01/30/2001 | US6180003 Portable apparatus for storing and disinfecting a fluid using ultraviolet source |
| 01/25/2001 | WO2001005717A1 Combined oxidation and chelating adsorption system for removal of mercury from water |
| 01/25/2001 | WO2001005484A1 Apparatus for washing and sterilizing potable water container and supplying purified water into the container |
| 01/24/2001 | EP1070020A1 Water treatment system and process comprising ph-adjustment |
| 01/24/2001 | CN2416097Y Water treatment apparatus |
| 01/24/2001 | CN2416043Y Portable marine water purifier |
| 01/24/2001 | CN1280958A Process without drainage of waste water |
| 01/23/2001 | US6177005 System for producing ultrapure water having a TOC density of no more than 0.5 ppb |
| 01/18/2001 | WO2001004062A1 Method and device for treating water, especially drinking water, and for maintaining the purity thereof |
| 01/17/2001 | EP1068888A1 Filter assembly with bypass valve and indicator means |
| 01/17/2001 | EP1068887A1 Integrated flotation and filtration device for the clarification of liquids containing suspended material |
| 01/17/2001 | CN2415031Y Multipurpose water treatment device for drinking and bathing |
| 01/16/2001 | US6174433 Household wastewater purification system |
| 01/16/2001 | US6173776 Cleaning compositions for oil and gas wells, lines, casings, formations and equipment and methods of use |
| 01/16/2001 | CA2074065C Low-speed septic tank sludge dewatering apparatus |
| 01/11/2001 | WO2001002310A1 Method and arrangement for purification of water |
| 01/11/2001 | WO2001002307A1 Device and method for purification of waste water |
| 01/11/2001 | WO2001002304A1 Method and device for removal of environmental contaminants from water |
| 01/11/2001 | WO2001002301A1 Water supply unit |
| 01/11/2001 | DE19932268A1 Environmentally friendly combined processes for purifying and recycling waste water from washing processes make use of UV irradiation and filtering with no addition of chemicals |
| 01/11/2001 | CA2377825A1 Method and arrangement for purification of water |
| 01/10/2001 | EP1015090A4 Flowmeter system useable with water treatment device |
| 01/10/2001 | EP0808179B1 Device and process for the sterilization of waste water |
| 01/10/2001 | CN1279652A Process for removing selenium from refinery process water and wastewater streams |
| 01/10/2001 | CN1279650A Ultra-purity water producing apparatus by high temperature process and chemical liquid preparing system including the same |
| 01/10/2001 | CN1279215A Water tower able to purify, mineralize and magnetize water |
| 01/09/2001 | US6171480 Automated closed recirculating aquaculture filtration system |
| 01/04/2001 | WO2001000534A1 Process for the treatment of a waste water |
| 01/04/2001 | DE19925471A1 Treatment of waste water from an electrolytic bath using reverse osmosis and selective ion-exchange to allow metal recovery |
| 01/03/2001 | CN2412901Y Domestic sewage treatment installation |
| 01/02/2001 | US6168721 Process for the treatment of arsenic-containing sludge |
| 12/28/2000 | WO2000078681A2 Point-of-use water treatment system |
| 12/28/2000 | WO2000078679A1 Flotation pile oil/water separator apparatus |
| 12/28/2000 | WO2000078678A2 Fluid treatment system with electromagnetic radiation |
| 12/28/2000 | WO2000078366A1 Shower head provided with an ultraviolet lamp |
| 12/28/2000 | CA2541462A1 Fluid treatment system |
| 12/27/2000 | EP1062989A2 Method for decomposing halogenated aliphatic hydrocarbon compounds having adsorption process and apparatus for decomposition having adsorption means |
| 12/27/2000 | CN1059878C Method and apparatus for cleaning electronic parts |
| 12/26/2000 | US6165371 Off-shore sewage treating and handling apparatus and method |
| 12/21/2000 | DE19927134A1 Recovering mercury for industrial use from contaminated sludge comprises heating and condensation on mobile assembly in low-cost process |
| 12/20/2000 | EP1061048A1 Potable and carbonated water dispenser with water treatment units |
| 12/20/2000 | EP1060306A1 Method for treating process water |
| 12/20/2000 | EP1060134A1 Method and device for treating aqueous flows in a bioreactor, an ultrafiltration unit and a membrane filtration unit, |
| 12/20/2000 | CN2411251Y Domestic environmental protection water saver |
| 12/20/2000 | CN1277595A Treatment plant with self-supporting modular structure |
| 12/19/2000 | US6162361 Plating waste water treatment and metals recovery system |
| 12/14/2000 | WO2000075083A1 Treatment of contaminated liquids with oxidizing gases and liquids |
| 12/14/2000 | WO2000075081A1 Fluid sterilization apparatus |
| 12/14/2000 | CA2373896A1 Treatment of contaminated liquids with oxidizing gases and liquids |
| 12/13/2000 | CN2410295Y Single drum filter board type water purifier |
| 12/13/2000 | CN1276352A Waste water treating and cyclic utilization system for laundering and dyeing trade |
| 12/13/2000 | CN1059408C Method for treatment of water by return and pre-electroosmosis of reverse osmosis concentrated water |
| 12/12/2000 | US6159381 Waste paper treatment process |
| 12/12/2000 | US6159380 Mixing wastewater, water purifying formulation and oxidizer in reactor settling tank; allowing to precipitate and stand until formation of sludge; pumping supernatent through filter; pumping sludge holding unit and then to solar dewatering unit |
| 12/12/2000 | US6159365 For treating natural water or industrial wastewater to remove contaminants in a packaged modular treatment unit |
| 12/07/2000 | WO2000073220A1 A disposal method for pig ordure |
| 12/07/2000 | WO2000073212A1 A method of removing dirt from a dirty solution, use of the method and devices able to perform this method |
| 12/06/2000 | EP1057785A1 Method of treating liquid, liquid treatment apparatus, and liquid treatment system |
| 12/06/2000 | EP1056687A1 Method for purifying waste water by combining hydrogen-peroxide supported oxidation with a membrane separation method |
| 12/06/2000 | EP0778813B1 Method for dewatering sludges |
| 12/06/2000 | CN2409208Y Running water activating device |
| 12/06/2000 | CN1275799A Method for making semiconductor device |
| 12/06/2000 | CN1275540A Method for production of magnetized drinking water |
| 12/06/2000 | CN1275539A Water purifying method and equipment thereof |
| 12/06/2000 | CN1275538A Waste water treatment method and equipment |
| 12/06/2000 | CN1275418A Method for removing inpurity from fluid |
| 12/06/2000 | CN1275417A Method for removing removed substance from fluid |
| 12/06/2000 | CN1275416A Apparatus for removing removed substance from fluid |
| 12/06/2000 | CN1059180C Flooding water treatment method by mixing clean water with sewage |
| 12/05/2000 | US6156210 Method for treating water |
| 12/05/2000 | US6156192 Waste treatment system |
| 12/05/2000 | US6156191 Apparatus for removing selenium from refinery process water and waste water streams |
| 12/05/2000 | US6156075 Water treatment and pollution control |
| 12/04/2000 | CA2273745A1 Fluid sterilization apparatus |
| 11/30/2000 | WO2000071783A1 Portable disinfection and filtration system |
| 11/30/2000 | WO2000071227A1 User-activated ultra-violet water treatment unit |
| 11/30/2000 | DE19923796A1 Treatment of waste water for recycling within an industry, is achieved by sand filtration followed by conventional processes, with use of waste water for filter flushing |
| 11/29/2000 | EP1055651A2 System and process for treating animal waste |
| 11/29/2000 | EP1055448A2 Method of filtering a fluid |
| 11/29/2000 | EP1055447A2 Method of filtering a fluid |
| 11/29/2000 | EP1055446A2 Method of fabricating a semiconductor device with process liquid recycling |
| 11/29/2000 | EP1055445A2 Apparatus for filtering a fluid |
| 11/29/2000 | CN1274684A Method of treating waste water from production of phenylacetic acid and reusing resouce |
| 11/29/2000 | CN1058946C Vertical retained aeration sewage treatment process and device |
| 11/28/2000 | US6153105 For treatment of drinking water designed for use in commercial ice-making machines |