| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 08/18/1992 | US5139662 Apparatus for clarifying water |
| 08/18/1992 | US5139625 Fluid treatment apparatus and method of its shutdown |
| 08/18/1992 | US5139623 Method of forming oxide film on stainless steel |
| 08/18/1992 | US5139050 Multi-functional valve |
| 08/18/1992 | US5138778 Steam iron having valved demineralizing cartridge and secondary demineralized reservoir |
| 08/18/1992 | CA1306421C Method and apparatus for pretreatment of water using a bed of granular activated carbon |
| 08/16/1992 | WO1992014530A1 Process and apparatus for producing concentrated aqueous slurries and spray dried particulate products |
| 08/16/1992 | CA2079687A1 Process and apparatus for producing concentrated aqueous slurries and spray dried particulate products |
| 08/13/1992 | DE4135724A1 Appts. for adsorption of contaminants in waste water - comprises adsorbent suspension of lignite coke or activated carbon dust mixed with water and later removed by flocculation or filtration |
| 08/13/1992 | DE4104094A1 Procedure and device for pre-clearing waste liq. such as pig slurry - after removal of coarse solid material, water undergoes ozonisation and electrolysis in prepn. for biological treatment |
| 08/13/1992 | DE4103969A1 Verfahren zur herstellung von feinteiligen, wasserloeslichen oder wasserquellbaren polymerisaten Polymers Process for the preparation of finely divided wasserloeslichen, or water |
| 08/12/1992 | WO1992013528A1 Desinfectant for the treatment of water systems |
| 08/12/1992 | EP0498750A1 Plant for mixing two fluid phases by mechanical stirring, particularly for water treating by transfer of oxidizing gas and use of the same |
| 08/12/1992 | EP0498337A1 Process for liquid manure disposal |
| 08/12/1992 | EP0498098A1 Method and apparatus for ionizing fluids utilizing a capacitive effect |
| 08/12/1992 | EP0498086A1 Device that demineralizes water by magnetization |
| 08/12/1992 | EP0497812A1 A process of combatting microorganisms. |
| 08/12/1992 | EP0313633B1 Method and apparatus for treating water, water treated thus obtained and its utilization |
| 08/12/1992 | CN2112630U Jacketed magnetizing cup |
| 08/12/1992 | CN2112629U Single tower multi-stage ion exchanger |
| 08/12/1992 | CN2112628U Solar water purifier |
| 08/12/1992 | CN2112627U Retreatment device for running water |
| 08/12/1992 | CN2112344U Magnetization insulation cup with temp. indicator |
| 08/12/1992 | CN2112341U Magnetization cup |
| 08/12/1992 | CN1063469A Process for treatment of waste water |
| 08/12/1992 | CN1063468A Process for recovery of aluminium compound from waste water during production of anthraquinone |
| 08/11/1992 | US5138172 Apparatus and method for applying information energy to a substrate |
| 08/11/1992 | US5137731 Chemical tablet with central hole and partially exposed top and bottom |
| 08/11/1992 | US5137654 Ultrafiltration of metal working fluid |
| 08/11/1992 | US5137642 Detoxification of aqueous cyanide solutions |
| 08/11/1992 | US5137641 Cationic polymers for sludge dewatering |
| 08/11/1992 | US5137640 Contacting with Cu or compound, neutralizing, treating copper arsenate with ferric compound, separating ferric arsenate |
| 08/11/1992 | US5137639 Using quaternary ammonium compound |
| 08/11/1992 | US5137607 Reactor vessel using metal oxide ceramic membranes |
| 08/11/1992 | CA1306199C Filtering apparatus |
| 08/10/1992 | WO1992013912A1 Agglomerated polymer particles produced from finely divided water-soluble or water-swellable polymerisates |
| 08/10/1992 | CA2085481A1 Agglomerated polymer particles produced from finely divided water-soluble or water-swellable polymerisates |
| 08/08/1992 | CA2060082A1 Condensate polishing system incorporating a membrane filter |
| 08/06/1992 | WO1992013117A1 Electrochemical desensitization process |
| 08/06/1992 | WO1992012944A1 A method of and an apparatus for separating liquid manure into a thick slurry phase with high dry matter content and an aqueous phase with desired - high, moderate or low - n-content |
| 08/06/1992 | WO1992012936A1 Waste water biological treatment device |
| 08/06/1992 | WO1992012935A1 Iron-nickel catalyst for hypochlorite removal from waste stream effluents |
| 08/06/1992 | WO1992012934A1 Method for purifying water containing calcium sulphate by precipitation of a crystalline sulphoaluminate usable as charge |
| 08/06/1992 | WO1992012933A1 Method and device for electroplasma separation of fat and oil from sewage |
| 08/06/1992 | WO1992012931A1 Electrochemical oxidation of organic wastes |
| 08/06/1992 | WO1992012930A1 A sewage well or a small sewage purification plant |
| 08/06/1992 | WO1992012790A1 Modular unit for a tubular ultrasonic reactor |
| 08/06/1992 | WO1992012785A1 Effluent treatment |
| 08/06/1992 | DE4126664A1 Floating device for cleaning oily water in lakes etc. - involves two evaporators arranged in cascade, used respectively to separate volatile from less volatile components and combustible substances from water |
| 08/06/1992 | DE4103176A1 Continuously dewatering sludges - comprises collecting solids on vertical centrifuge bowl while liq. passes over rim and periodically opening or folding bowl to release solids |
| 08/06/1992 | DE4103165A1 Purifying contaminated effluent waters - by liq. liq. extraction followed by treatment in adsorption reactor |
| 08/06/1992 | DE4103163A1 Purificn. of effluent water contaminated with small amts. of halogenated hydrocarbon(s) - by dispersing sorption agent in water in static mixer and passing to separator |
| 08/06/1992 | DE4103162A1 Sepg. small concns. of light liquids from effluent water - by extn. with heavy water immiscible solvent and removal of solvent residues by sorption |
| 08/06/1992 | DE4102701A1 Water-filtration system - has retracting filler pipe in water-vessel cover allowing large head for rapid filtering, but compact storage |
| 08/06/1992 | CA2041198A1 Method and apparatus for ionizing fluids utilizing a capacitive effect |
| 08/05/1992 | EP0497754A1 Arrangement to prevent or to remove deposits in pipes |
| 08/05/1992 | EP0497611A1 Biodegradable polymers, process for preparation of such polymers, and compositions containing such polymers |
| 08/05/1992 | EP0497419A1 Improved process for water purification |
| 08/05/1992 | EP0497199A1 Method and relative apparatus for the re-use of wash water in the photographic field |
| 08/05/1992 | EP0497114A1 Process for purifying waste water containing phosphates and nitrogen compounds |
| 08/05/1992 | EP0496916A1 Method for treating deposits |
| 08/05/1992 | EP0496915A1 Method for treating deposits |
| 08/05/1992 | EP0496913A1 Process for purifying flue gas from combustion units, especially from waste incinerators |
| 08/05/1992 | EP0496905A1 Lignosulfonates for combatting slimy deposits in closed water loop plants, process of preparation and their use |
| 08/05/1992 | EP0486574A4 Improved sewage treatment process |
| 08/05/1992 | EP0471784A4 Method and composition for treating waste water |
| 08/05/1992 | EP0357753B1 Process and device for biological purification of water contaminated with nitrogen and phosphor compounds and organic carbon |
| 08/05/1992 | CN2111951U Purifying water magnetizing apparatus |
| 08/05/1992 | CN2111950U Magetic cup |
| 08/05/1992 | CN2111949U Strong magnetic cup |
| 08/05/1992 | CN2111713U Magnetic thermos bottle |
| 08/05/1992 | CN2111703U Mineral water magnetic cup |
| 08/05/1992 | CA2060586A1 Device that demineralizes water by magnetization |
| 08/05/1992 | CA2060089A1 Installation for the mixing of two fluid phases by mechanical stirring, notably for the treatment of water by transfer of oxidizing gas, and use of such an installation |
| 08/04/1992 | US5136032 Method for separating phosphopolyol compounds using a separating agent |
| 08/04/1992 | US5135968 Dilution, activation polymer molecules in water solution |
| 08/04/1992 | US5135664 Method for treating wastewater sludge |
| 08/04/1992 | US5135663 Adding base, reducing agent, cationic flocculant, separating formed polymer |
| 08/04/1992 | US5135662 Tube clarifier method for monitoring and/or controlling clarification processes |
| 08/04/1992 | US5135660 Method of recovering oil from the surface of water |
| 08/04/1992 | US5135659 Agricultural waste water treatment |
| 08/04/1992 | US5135656 Process for removing water soluble organic compounds from produced water |
| 08/04/1992 | US5135655 Process for treating refinery slurries |
| 08/04/1992 | US5135654 Method for treating fluids |
| 08/04/1992 | US5135648 Universal liquid reduction and treatment system |
| 08/02/1992 | CA2059675A1 Biodegradable free-radical addition polymers |
| 08/01/1992 | CA2060365A1 Process for water purification |
| 07/31/1992 | CA2060251A1 Waste water treatment equipment |
| 07/30/1992 | WO1992012937A1 Apparatus for cleaning waters and industrial sewages containing floating materials |
| 07/30/1992 | DE4202145A1 Procedure and device for improving quality of drinking and bathing water - comprises treating water taken from vessel magnetically and returning in rising curtain flow pattern, and fresh water undergoes vortex and magnetic treatment |
| 07/30/1992 | DE4102528A1 Sepg. oil-water emulsions e.g air compressor condensates - using active carbon@ adsorption preceded by treatment with a cationic emulsion breaker |
| 07/30/1992 | DE4102238A1 Clarifying aq. polymeric dispersions - by electrolytically treating so polymeric particles accumulate on electrode before discharge |
| 07/30/1992 | CA2099015A1 Apparatus for cleaning waters and industrial sewages containing floating materials |
| 07/29/1992 | EP0496101A1 Process for the thermal treatment of ammonium sulfate containing wastes especially ammonium sulfate containing waste-waters |
| 07/29/1992 | EP0495860A1 Method and device for the magnetic treatment of a fluid |
| 07/29/1992 | EP0495803A1 Disinfectant composition and method of disinfection. |
| 07/29/1992 | EP0495802A1 Phosphonium compound, composition containing it; and method of disinfection |
| 07/29/1992 | CN2111287U Ceramic magnet cup |
| 07/29/1992 | CN2111286U Magnet filter on water pipe |
| 07/29/1992 | CN1063089A Treating process for water containing fluorine |