| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 09/09/1997 | US5665245 By negative pressure generated by jet pump; water treatment |
| 09/09/1997 | US5665243 Method for removing metal contained in solution using surfactant having chelating ability |
| 09/09/1997 | US5665242 Inhibition of silica precipitation |
| 09/09/1997 | US5665241 Dephosphorizing material and dephosphorizing method |
| 09/09/1997 | US5665240 Point-of-use removal of lead in drinking water using phosphate and carbonate minerals |
| 09/09/1997 | US5665237 Separation of naphthalenesulfonate-based carbonyl condensates from water |
| 09/09/1997 | US5665234 Micro-filter disc and a method for its production |
| 09/09/1997 | US5665228 Ozone mixing system for a hydrotherapy spa |
| 09/09/1997 | US5665224 Filter jug |
| 09/09/1997 | US5665221 Electrical apparatus for controlling liquid contaminants |
| 09/05/1997 | CA2198325A1 A method of removing dispersed oil from an oil in water emulsion employing aerated solutions within a coalescing media |
| 09/04/1997 | WO1997031866A1 Neutralizing device for acid liquids |
| 09/04/1997 | WO1997031863A1 Concentration of waterborne pathogenic organisms |
| 09/04/1997 | WO1997031862A1 Non-draining type human waste disposal method by pulse combustion drying |
| 09/04/1997 | WO1997019581A3 Enhancing biological, biochemical and chemical reactions using structured liquids and solids |
| 09/04/1997 | DE19706775A1 Mince meat washing assembly incorporates sludge settlement water tank |
| 09/04/1997 | DE19624095C1 Hydrogen peroxide solutions used to disinfect contact lenses are decomposed in device incorporating Pt catalyst |
| 09/04/1997 | DE19608463A1 Removal of phenol(s) from effluent by extraction with solvent mixture |
| 09/04/1997 | DE19607392A1 Simple oxidative elimination of ethylene-di:amine-tetra:acetic acid etc. |
| 09/04/1997 | CA2247127A1 Concentration of waterborne pathogenic organisms |
| 09/04/1997 | CA2219764A1 Non-draining type human waste disposal method by pulse combustion drying |
| 09/03/1997 | EP0792841A2 Wet oxidizing process |
| 09/03/1997 | EP0792838A1 Process and apparatus for the preparation of salt solutions |
| 09/03/1997 | EP0792674A1 Sanitary installation for the multiple use of drinking water |
| 09/03/1997 | EP0792673A1 Water treating apparatus |
| 09/03/1997 | EP0792584A1 Strongly acidic sterile water containing low-concentration hypochlorous acid, method of forming strongly acidic sterile water containing low-concentration hypochlorous acid, apparatus therefor, and apparatus for forming and delivering strongly acidic sterile water containing low-concentration hypoch |
| 09/03/1997 | EP0792249A1 End of life mechanism for water treatment cartridge |
| 09/03/1997 | EP0792248A1 Improved lamp cooling for a uv lamp reactor assembly |
| 09/03/1997 | EP0633866B1 Method and apparatus for batchwise biological and chemical purification of soil water |
| 09/03/1997 | CN2261424Y Spheric water purifier |
| 09/03/1997 | CN2261423Y Fluorine eliminator of drink water |
| 09/03/1997 | CN2261422Y Testing bottle for water purifier for drinking |
| 09/03/1997 | CN2261285Y Aerated gas-water back-impacting filtering pool |
| 09/03/1997 | CN2261199Y Safety sanitary magnetic cup pallet |
| 09/03/1997 | CN1158650A A method and a device for recovering water from a humid atmosphere |
| 09/03/1997 | CN1158320A Method for reclaiming waste keto-acid liquid in prodn. of soluble gluside |
| 09/03/1997 | CN1035746C Ultrafiltration process for recovery of polymeric latices from whitewater |
| 09/02/1997 | US5663475 Reactor for oxidation of petrochemicals using ozone and hydrogen peroxide |
| 09/02/1997 | US5662940 Biocidal methods and compositions for recirculating water systems |
| 09/02/1997 | US5662826 Process for the preparation of a coagulating chemical comprising dissolving a solid zeolite in a solution of trivalent metal salt |
| 09/02/1997 | US5662809 Removing oxygen, nitrite or nitrate from water |
| 09/02/1997 | US5662808 Process and article for disinfecting water |
| 09/02/1997 | US5662805 Automatic testing, filtration for dewatering by adding flocculants |
| 09/02/1997 | US5662804 Method and apparatus for separating non-soluble particles from a liquid |
| 09/02/1997 | US5662803 Bactericides in water systems, antideposit agents and water soluble compounds |
| 09/02/1997 | US5662801 Method of removing organic compounds from air and water columns |
| 09/02/1997 | US5662795 Swimming pool chemical dispenser |
| 09/02/1997 | US5662792 Water purifier having reinforcement preventing deformation of a tank-supporting wall |
| 09/02/1997 | US5662789 Removal of organics from aqueous solutions |
| 09/02/1997 | US5662779 Portable water purification apparatus |
| 09/02/1997 | US5662031 To reduce the microbial content |
| 08/28/1997 | WO1997030943A1 Water softening apparatus with microprocessor control |
| 08/28/1997 | WO1997030942A1 A device for creation of an oxidation and precipitation zone or a reduction zone in an aquifer |
| 08/28/1997 | WO1997030941A1 Electrochemical treatment of water contaminated with nitrogenous compounds |
| 08/28/1997 | WO1997030940A1 Water softening system with self adjusting rinse cycle |
| 08/28/1997 | WO1997030939A1 Method and apparatus for producing ultrapure water |
| 08/28/1997 | WO1997030938A1 Modular water-treatment apparatus |
| 08/28/1997 | WO1997030931A1 Method and apparatus for making aqueous chlorine dioxide |
| 08/28/1997 | WO1997030785A1 Continuous process and apparatus for generation of ozone for industrial application |
| 08/28/1997 | WO1997030759A1 Waste stream treatment |
| 08/28/1997 | WO1997030589A1 A method for controlling microorganisms |
| 08/28/1997 | DE19704894A1 Low voltage direct current water treatment unit crystallises-out limescale |
| 08/28/1997 | DE19606943A1 Ground water barrier |
| 08/28/1997 | DE19606656A1 Process to separate atomised waste water bearing load of ammonium mix |
| 08/28/1997 | DE19606037A1 Solar-powered drinking water assembly has tubes integrated into dark textile strips |
| 08/28/1997 | CA2247012A1 Method and apparatus for making aqueous chlorine dioxide |
| 08/27/1997 | EP0790960A1 Wastewater treatment method and plant |
| 08/27/1997 | EP0790851A1 Activated sludge degassing process and device |
| 08/27/1997 | EP0790850A1 Method of processing a cheese processing waste stream |
| 08/27/1997 | EP0764042A4 Fluid extraction |
| 08/27/1997 | EP0748296B1 Method for oxidatively decomposing organic compounds in aqueous effluents |
| 08/27/1997 | EP0637264B1 Ionotropic gel lacking a gelling ionic entity, process for the preparation of such a gel and use thereof especially in a process for producing a sparkling wine |
| 08/27/1997 | EP0631565B1 Method for removing chloramine with catalytic carbon |
| 08/27/1997 | EP0501989B1 Water tap |
| 08/27/1997 | CN2260803Y Water magnetizing-filtering device |
| 08/27/1997 | CN2260802Y Liquid-gas mixing type ozone water generator for split-combination water tap |
| 08/27/1997 | CN2260801Y Fully-automatic water-purifying device |
| 08/27/1997 | CN2260800Y Drink-water magnetizing and filtering device |
| 08/27/1997 | CN2260799Y Medicine health-care cup |
| 08/27/1997 | CN2260798Y Built-in type water storage-supply device for hyperfiltration water-purifying machine |
| 08/27/1997 | CN2260797Y Waste-water purifying-filler blowing-off absorption tower |
| 08/27/1997 | CN2260796Y Fully-closed circulation water-separating device for raw-material paper-making liquor |
| 08/27/1997 | CN1157887A Selectable drainage switching device for purifier |
| 08/27/1997 | CN1157802A Mineral water shower apparatus |
| 08/27/1997 | CN1157801A Method for sterilization and terminating algae of drinking water and its device |
| 08/27/1997 | CN1157797A Process and plant for extraction or recovery of acids from solutions these acids |
| 08/26/1997 | US5661104 Preservative compositions for use in aqueous systems |
| 08/26/1997 | US5660802 Water purifier |
| 08/26/1997 | US5660736 Sodium sulfoxylate formaldehyde as a boiler additive for oxygen scavenging |
| 08/26/1997 | US5660735 Method for removing metals from waste solutions |
| 08/26/1997 | US5660734 Paint spray booth treatment program for waterborne and/or solventborne paints |
| 08/26/1997 | US5660733 Sewage dewatering process |
| 08/26/1997 | US5660732 Method of separating oleophilic-hydrophobic material from wash water |
| 08/26/1997 | US5660723 Water conserving cooling tower system |
| 08/26/1997 | US5660719 Ultraviolet light apparatus for fluid purification |
| 08/26/1997 | US5660718 Method and apparatus for separation by flotation |
| 08/26/1997 | CA1339371C Biocides for protecting industrial materials and water systems |
| 08/21/1997 | WO1997030233A1 System for non-potable water reuse |
| 08/21/1997 | WO1997029997A1 Method and plant for purification of contaminated water |
| 08/21/1997 | WO1997029996A1 Method of treating drinking water for consumption |