| Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429) |
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| 08/20/2003 | CN1436741A Pretreatment process of alcoholic gas field sewage |
| 08/20/2003 | CN1436736A Drainage treating method and apparatus |
| 08/19/2003 | US6608184 Such as fatty oil and acids, glycerol, glycols, lactic acid, urea, fertilizer, carbohydrates, ethanol, by concentrating and filtering out the solid sewer sludge, hydrolysis of the cellulose in sludge and fermentation, recovery |
| 08/19/2003 | US6607668 Water purifier |
| 08/19/2003 | US6607663 Portable and multi-stage filtration device for removal of perchlorethylene from dry cleaning wastewater |
| 08/19/2003 | US6607473 Methods for centrifugally separating mixed components of a fluid stream under a pressure differential |
| 08/14/2003 | WO2003066070A1 Method and apparatus for treating water for use in improving the intestinal flora of livestock and poultry |
| 08/14/2003 | US20030150819 Waste water treating method and waste water treating apparatus |
| 08/14/2003 | US20030150818 Especially used in the processing of the waste streams from the chlorination of titanium-bearing raw materials and involve the use of certain combinations of neutralization and precipitation steps. |
| 08/14/2003 | US20030150810 Water purification system and water purification method |
| 08/14/2003 | US20030150707 Apparatus and method for photocatalytic purification and disinfection of fluids |
| 08/13/2003 | EP1334952A2 Process and apparatus for treating liquids containing ammonium, phosphate and potassium |
| 08/13/2003 | EP1334073A2 Treatment of waste water and apparatus therefor |
| 08/13/2003 | CN1435386A Process for deep treating sewage and reuse |
| 08/13/2003 | CN1435385A Method for treating sewage by physical field effect |
| 08/13/2003 | CN1435381A Method of treating organic sewage difficult to bio-degrade by CuCl membrane |
| 08/12/2003 | US6605214 Devices for preparing hemodialysis solutions |
| 08/07/2003 | WO2003064333A1 Method for the treatment of industrial effluent containing organic pollutants |
| 08/07/2003 | WO2003063774A2 Method of treating contaminants in an in situ environment |
| 08/07/2003 | WO2003011775A3 Method and installation for treating liquids, especially for purifying contaminated water, using a perforated cylinder station |
| 08/07/2003 | US20030148626 Fabrication method of semiconductor integrated circuit device |
| 08/07/2003 | US20030146523 Process for dissolving gas into a liquid |
| 08/07/2003 | US20030146168 Apparatus for the treatment of a wiping solution |
| 08/07/2003 | US20030146165 Treatment agent and method for elimination of harmful polluted substances |
| 08/07/2003 | US20030146140 System and process for treating carbonaceous wastes |
| 08/06/2003 | EP1080042B1 Use of alkaline earth peroxides for immobilising phosphate in waters, soils, sediments and/or sludges |
| 08/06/2003 | CN2564568Y Circulation well washing vehicle for water injection well of oil field |
| 08/06/2003 | CN2564567Y Recovery device for vehicle washing waste water |
| 08/06/2003 | CN1433978A Method for treating refuse percolation liquid |
| 08/06/2003 | CN1433977A Water treatment technology of electrolysis and packed type filter purification |
| 08/06/2003 | CN1433976A Regeneration process technology for sewage in refinery |
| 08/06/2003 | CN1117033C Photoxidizing water purifier with biological membrane |
| 08/05/2003 | US6602426 Water treatment using ozone and having a reduced likelihood of bromate formation from bromides found in the water |
| 08/05/2003 | US6602425 Feeding water into a delivery system, driving through a ceramic filter by gravity, and exposing to ultraviolet light downstream |
| 08/05/2003 | US6602410 Water purifying kits |
| 08/05/2003 | US6602327 Degassing liquids by pressurization and depressurizing to cause desorption |
| 07/31/2003 | WO2003062495A2 Method and apparatus for mediated electrochemical redox reaction |
| 07/31/2003 | WO2003062156A1 System for desalination and distribution of saline raw water |
| 07/31/2003 | WO2003062155A1 Water purification system |
| 07/31/2003 | WO2003062151A1 Method of generating fresh water and fresh-water generator |
| 07/31/2003 | US20030143030 Method of treating contaminants in an in situ environment |
| 07/31/2003 | US20030141237 Portable and multi-stage filtration device for removal of perchlorethylene from dry cleaning wastewater |
| 07/31/2003 | US20030141234 Water treatment device |
| 07/30/2003 | EP1242312B1 Device and method for treating water with ozone generated by water electrolysis |
| 07/30/2003 | EP1230169B1 Process for the purification of industrial waste water from a propylene oxide production process |
| 07/30/2003 | CN1432541A Leftover processing process and apparatus for sweet potato after producing starch |
| 07/30/2003 | CN1432540A Complex filter and high-purity water producing method and equipment with the complex filter |
| 07/30/2003 | CN1432531A Hydrogen dissolving water producing apparatus |
| 07/30/2003 | CN1116398C Process for producing fresh wiping solution and treating used solution and apparatus for carrying out the process |
| 07/24/2003 | WO2003059821A1 Apparatus and method for separating and filtering particles and organisms from flowing liquids |
| 07/24/2003 | WO2003051778A3 Method for treating circulating water in coagulation devices of paint installations |
| 07/24/2003 | US20030136748 Water purification system |
| 07/24/2003 | US20030136741 Chemical and process for removing emulsions from waste water |
| 07/24/2003 | US20030136740 Iron electrodes in electrolytic bath, able forming iron hydroxide particles through the electrolysis, absorbing impurities; metallic oxide electrodes providing oxidation reduction reaction; purification, dephosphorization |
| 07/23/2003 | EP1328480A1 Mobile unit for filtering and sterilizing water |
| 07/23/2003 | EP1328336A2 Apparatus and method for increasing oxygen levels in a liquid |
| 07/23/2003 | EP1246779B1 Method and device for purifying untreated water |
| 07/23/2003 | CN2561916Y Double vehicle combined water injecting clean-out vehicle |
| 07/23/2003 | CN1431158A Method for handling waste water of paper making industry |
| 07/23/2003 | CN1431157A Household self control type processing device for purifying water quality by use of ozone |
| 07/23/2003 | CN1115307C Filter element of water drinker and water drinker thereof |
| 07/22/2003 | US6596177 Method of improving the quality of diesel fuel |
| 07/22/2003 | CA2133968C System for treating polluted groundwater |
| 07/17/2003 | WO2003057631A1 Wastewater treatment system |
| 07/17/2003 | WO2002048431A3 Electrochemical apparatus with retractable electrode |
| 07/17/2003 | US20030132166 Method of treating mine drainage |
| 07/17/2003 | US20030132124 Nitrogen treating method |
| 07/17/2003 | US20030132104 Hydrogen-dissolved water production apparatus |
| 07/16/2003 | EP1327608A1 Apparatus and method for electrolytic treatment of waste water |
| 07/16/2003 | CN2560638Y Water purifying apparatus and movable water purifying apparatus |
| 07/16/2003 | CN1430583A Method and apparatus for treatment of biological suspensions |
| 07/16/2003 | CN1429781A Oil extraction waste water treatment method and its special reaction equipment |
| 07/16/2003 | CN1429780A New process for treating sewerage |
| 07/16/2003 | CN1429775A Decolouring method of printing and dyeing waste water |
| 07/15/2003 | US6592763 Method and device for treating aqueous flows in a bioreactor, an ultrafiltration unit and a membrane filtration unit |
| 07/10/2003 | US20030127398 Device for treating water |
| 07/10/2003 | US20030127397 Roasting rocks; crushing; forming carbon dioxide; flocculation; precipitation |
| 07/10/2003 | US20030127383 Ozone oxidizing apparatus |
| 07/10/2003 | US20030127381 Apparatus for producing USP or WFI purified water |
| 07/10/2003 | US20030127226 Water treatment method for heavy oil production |
| 07/09/2003 | EP1325890A1 Process to remove an aqueous sludge suspension consisting of shot-blasting abrasives and coatings residuals |
| 07/09/2003 | EP1248527A4 Beverage brewing system and method for using same |
| 07/09/2003 | CN2559645Y Multifunction domestic water purifier |
| 07/09/2003 | CN1428303A Denitrification phosphorus-collecting sewage treatment method and its equipment |
| 07/09/2003 | CN1428302A Coupling field oxidation sewage treatment method |
| 07/09/2003 | CN1114009C Method for closed circulation treating waste water, waste gas in papermaking plant |
| 07/08/2003 | US6589422 Apparatus and method for extracting biomass |
| 07/08/2003 | US6588226 Water recovery and dispensing systems and methods for using the same |
| 07/03/2003 | WO2003053868A1 Composite filter and method and apparatus for producing high purity water using the composite filter |
| 07/03/2003 | WO2003042107A3 Water filter cartridge |
| 07/03/2003 | WO2003024875A3 Method for the biological and chemical/oxidative treatment of waste water containing dye |
| 07/03/2003 | WO2000078678A3 Fluid treatment system with electromagnetic radiation |
| 07/03/2003 | US20030121864 System and method for removing deep sub-micron particles from water |
| 07/03/2003 | US20030121851 Sizing; mixing with base; thermal hydrolysis; forming methane |
| 07/03/2003 | US20030121798 Water treating method, water treating apparatus, and hydroponics system using the apparatus |
| 07/03/2003 | US20030121416 Pressurization the liquid; absorption; depressurization |
| 07/02/2003 | EP1323680A1 Method for recovering nitrates from percolating waters coming from solid urban waste materials |
| 07/02/2003 | EP1322556A1 Water treatment process and apparatus |
| 07/02/2003 | CN1112939C flowable waste sanitizing process and system |
| 07/01/2003 | US6585899 Mobile waste treatment system |