| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 03/24/1994 | DE4231790A1 Vehicle washing station waste water cleaning - has angled blades for water to flow upwards to separate floating matter |
| 03/24/1994 | DE4231363A1 Forming temporary barriers to ground water preventing leaching of pollutants from contaminated areas - by oxidn of iron and/or manganese cpds in situ to clog soil pores |
| 03/24/1994 | DE4231028A1 Treatment of aq. liq. resulting from metal surface treatment - by passage through the electrode spaces of an electrodialysis unit |
| 03/24/1994 | DE4224130A1 Cleaning of sewage and waste water - combines UV photo-chemical reaction with a centrifugal action on the water |
| 03/23/1994 | EP0588778A1 Installation for purification of wash water, especially in vehicle washing installations |
| 03/23/1994 | EP0588494A1 Method for the inhibition of oxygen corrosion in aqueous systems by the use of a tannin activated oxygen scavenger |
| 03/23/1994 | EP0588138A1 Method and apparatus for heat recovering in the chemical degradation of sludge or wastewater |
| 03/23/1994 | CN2159394Y Magnitizing water filler |
| 03/23/1994 | CN2159393Y Instant water softening and purifying apparatus |
| 03/23/1994 | CN2159157Y Disattachable mineralizing and magnetizing box for cup |
| 03/23/1994 | CN1084141A Method for treatment of waste water from electroplating |
| 03/23/1994 | CN1084140A Method for prepn. of compound polyaluminum chloride |
| 03/23/1994 | CN1084139A Water purifying agent |
| 03/22/1994 | US5296629 Recovering heavy metal from waste liquid by contacting with insoluble hydrolyzable tannin to adsorb metal on tannin, separating tannin, extracting metal with dilute mineral acid |
| 03/22/1994 | US5296293 Peat encapsulated in a shell of polyvinyl chloride |
| 03/22/1994 | US5296213 Polymeric aluminum silicate-sulphate and process for producing same |
| 03/22/1994 | US5296151 Water treatment |
| 03/22/1994 | US5296149 Water treatment apparatus |
| 03/22/1994 | US5296148 Monitoring dissolved solid concentration |
| 03/22/1994 | US5296147 Controlling reactor loading for optimum nitrification and denitrification |
| 03/22/1994 | US5296146 Reducing concentration of TNT-related explosives |
| 03/22/1994 | US5296141 Housing enclosing permanent magnet releasably attached to conduit; magnetic field affects fluid flowing through |
| 03/22/1994 | US5296137 Filtration system with axial flow cartridge |
| 03/22/1994 | US5296111 Biooxidation |
| 03/22/1994 | CA1327877C Fluid purification device |
| 03/18/1994 | CA2105416A1 Method and apparatus for silver recovery from photographic processing solutions |
| 03/17/1994 | WO1994006149A1 Toxic remediation system and method |
| 03/17/1994 | WO1994005903A1 Waste treatment system and method utilizing pressurized fluid |
| 03/17/1994 | WO1994005845A1 Laundry waste water treatment and wash process |
| 03/17/1994 | WO1994005603A1 Process for removing heavy metals, in particular mercury, from flue gas scrubber effluents |
| 03/17/1994 | WO1994005595A1 Aqueous suspensions of colloidal particles, preparation and use of the suspensions |
| 03/17/1994 | WO1994005400A1 Desulphurization of flue gases |
| 03/17/1994 | DE4302030C1 Putting to use of waste water contg. alcohol@, esp. in breweries - in which alcohol@ content is increased in rectification column and water/alcohol@ mixt. is then used as fuel in thermal power unit. |
| 03/17/1994 | DE4231020A1 Optimisation of flocculation processes in agitated vessels by turbidimetric analysis - using turbidity measurements from at least two levels in the liquid system |
| 03/17/1994 | DE4230798A1 Treatment appts. for machining coolant - includes multistage filter and UV irradiation unit |
| 03/17/1994 | DE4230780A1 Treatment of aq. waste, esp. machine tool coolant/lubricant - by distilling waste and using vapour to degrease machine tool swarf before returning to evaporator. |
| 03/17/1994 | DE4230765A1 Recycling used oily emulsions, esp machine tool lubricants - by filtering emulsion, treating with flotation agent, electrolysing and removing floating oil and particles |
| 03/17/1994 | DE4229662A1 Verfahren zur Entfernung von Schwermetallen, insbesondere von Quecksilber, aus aus Rauchgaswäschern stammenden Abwässern Process for the removal of heavy metals, especially mercury, from originating from flue gas scrubbers wastewater |
| 03/17/1994 | DE4227767A1 Domestic drinking water filter - has three filter stages and regeneration stage and compact plastic housing contg. filters in cartridge form |
| 03/17/1994 | CA2143123A1 Liquid to liquid coalescing separator and method |
| 03/16/1994 | EP0586998A1 Process and device for the treatment of waste water containing organic matter, especially chlorinated organic compounds from the production of epichlorohydrine |
| 03/16/1994 | EP0586925A1 Process and installation for desulfurizing flue gases |
| 03/16/1994 | EP0586611A1 Process for removing silica from aqueous liquors |
| 03/16/1994 | EP0586468A1 Treatment of emulsions |
| 03/16/1994 | EP0493589B1 Catalytic destruction of sulfur-oxygen anions |
| 03/16/1994 | EP0448597B1 Method and apparatus for treating water |
| 03/16/1994 | CN2158873Y Magnetic-treating device for bathwater |
| 03/16/1994 | CN2158872Y Gas-liquid quick-reacting apparatus for production of polyiron |
| 03/16/1994 | CN2158665Y Multifunction health-care cup with double magnetic field |
| 03/16/1994 | CN2158662Y Combined-type magnetic cup |
| 03/16/1994 | CN1083871A Frame type fixed bed electrode electrolyzer and its industrial application |
| 03/16/1994 | CN1083802A Methanol sewage treatment technology |
| 03/16/1994 | CN1023997C Deep treatment of waste water from printing and dyeing mill and related apparatus |
| 03/15/1994 | US5294644 Surface active lactams |
| 03/15/1994 | US5294417 Decomposing the nitrate in an alkaline aqueous solution with a hypochlorite; reducing the hypochlorite and adding a mercury precipitating agent |
| 03/15/1994 | US5294352 Polymer alloy |
| 03/15/1994 | US5294351 Method for controlling zebra mussels in power and water plants |
| 03/15/1994 | US5294348 Process for removing ammonia from waste waters |
| 03/15/1994 | US5294347 Dispersion polymers for ethylene quench water clarification |
| 03/15/1994 | US5294340 Process for the biological treatment of waste water using microorganisms |
| 03/15/1994 | US5294315 Suspension of particles, illumination, filtration and fluid flow |
| 03/15/1994 | US5294310 Surfactant recovery process |
| 03/15/1994 | US5294303 Method for removing dissolved immiscible organics from am aqueous medium at ambient temperatures |
| 03/15/1994 | CA2106153A1 De-chlorinated water supply system |
| 03/15/1994 | CA1327767C Enhanced in-situ electrochemical degradation of organic contaminants in groundwater systems |
| 03/11/1994 | CA2105613A1 Process and an arrangement for recovering heat in the chemical degradation of sewage sludge or wastewater |
| 03/10/1994 | DE4230094A1 Modular neutralisation unit for effluent treatment - which is self contained to prevent leakage of treatment materials to the surrounding environment |
| 03/10/1994 | DE4229740A1 Treatment of water by alternating current with modulating current density to prevent lime scale deposition - esp. where variable concns. of calcium and magnesium carbonate(s) are experienced |
| 03/10/1994 | DE4229594A1 Electromagnetic treatment of liquids to modify crystal habits - for prevention of lime scale formation, and in the treatment of bone fractures, etc. |
| 03/10/1994 | DE4229356A1 Treating waste water esp. from epichlorohydrin mfr. - by two-stage dechlorination and dehydrochlorination, providing efficient and simple removal of adsorbable organo:halogen cpds. |
| 03/10/1994 | DE4229355A1 Process and appts for the removal of chlorinated organic cpds from effluent - esp. from epichlorohydrin prodn |
| 03/10/1994 | DE4229174A1 Transportable trough reactor for biological purificn. appts. - for purifying contaminated liq., suspension or sludge, includes devices for mixing, nutrient salt supply, aeration and/or heating |
| 03/09/1994 | EP0586107A1 Method of removing water soluble organics from oil process water |
| 03/09/1994 | EP0585350A1 Divalent silver alkaline bactericide compositions. |
| 03/09/1994 | EP0585318A1 Batch process and apparatus. |
| 03/09/1994 | EP0485524B1 Absorbent materials and use thereof |
| 03/09/1994 | CN2158406Y Multi-function water purification equipment |
| 03/09/1994 | CN2158405Y Magnetization equipment for electrcal water-heater |
| 03/09/1994 | CN2158404Y High-efficiency low-consumption reactivator for softening water fluid-bed |
| 03/09/1994 | CN2158403Y Drinking water purification equipment with ultraviolet disinfector |
| 03/09/1994 | CN2158402Y Radioactivity treatment equipment for disinfecting drinking water |
| 03/09/1994 | CN2158401Y Disinfecting and filtration for drinking water storage tank |
| 03/09/1994 | CN2158400Y Purification and filtration for drinking water |
| 03/09/1994 | CN2158227Y Equipment for magnetizing water for electrically heating bottle |
| 03/09/1994 | CN2158222Y 矿泉水杯 Mineral water cups |
| 03/09/1994 | CN2158197Y Magnetic water container for travelling use |
| 03/09/1994 | CN1083448A Process for coagulant recovery |
| 03/08/1994 | US5292793 Hydrophobic polyelectrolytes used in color removal |
| 03/08/1994 | US5292547 Ultrafiltration, recycling of paint |
| 03/08/1994 | US5292456 Waste site reclamation with recovery of radionuclides and metals |
| 03/08/1994 | US5292442 Heating, autoclaving, flash evaporation, burning |
| 03/08/1994 | US5292441 Quaternized polyvinylamine water clarification agents |
| 03/08/1994 | US5292440 Removal of hydrogen sulfide from sour water without loss of heavy metal |
| 03/08/1994 | US5292439 Flow through regenerated ion exchange resin containing copolymer of a poly- and and mono-vinyl compound as matrix |
| 03/08/1994 | US5292435 Adding alkali sulfite, ferrous salt |
| 03/08/1994 | US5292422 Modules for electrodeionization apparatus |
| 03/08/1994 | US5292421 Using acoustical and electrical fields |
| 03/08/1994 | US5292412 Electrolytic cell having cathode of tin, copper, silver, or alloys thereof |
| 03/08/1994 | US5292409 Cathode and process for degrading halogenated carbon compounds in aqueous solvents |
| 03/08/1994 | CA1327655C Chemical treatment for algae control in open water systems |