Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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05/24/1988 | US4746438 Demineralization, degasification |
05/24/1988 | US4746434 Oil extraction |
05/24/1988 | US4746433 Biodegradation |
05/24/1988 | US4746425 Cooling system for electromagnetic water treating device |
05/19/1988 | WO1988003513A1 Fluid magnetizer |
05/19/1988 | WO1988003415A1 Device for sterilization of liquid with ultraviolet light |
05/19/1988 | DE3735868A1 Process for recovering pure ammonia from ammonia waste water containing hydrogen sulphide and/or carbon dioxide |
05/19/1988 | DE3732013A1 Process for binding oil of an oil/water suspension |
05/19/1988 | DE3711416A1 Process for purifying water and apparatus therefor |
05/19/1988 | DE3638319A1 Process for treating waste water from flue gas purification plants |
05/19/1988 | DE3634650A1 Verfahren zur entsorgung von schadstoffbeladenen stoffen und verwendung des dabei hergestellten produktes A method for disposal of pollutant-laden materials and use of the product produced thereby |
05/18/1988 | EP0267704A1 Electrochemical removal of chromium from chlorate solutions |
05/18/1988 | EP0267338A1 Heat exchanger for fluid treatment apparatus |
05/18/1988 | EP0267328A1 Method and apparatus for the purification of waste water, especially of muddy water resulting from the sludge removal from waters |
05/18/1988 | EP0267296A1 Method and device for ionizing liquid |
05/18/1988 | CN86106419A Rapid disinfection process for water and sewage by gaseous chlorine |
05/17/1988 | US4745132 Biocidal compositions and use thereof employing a synergistic mixture of n-alkyldimethyl benzyl ammonium halide and n-dodecylguanidine |
05/17/1988 | US4745129 Chemically-active aqueous solution and solid substance containing divalent iron ions |
05/17/1988 | US4744909 Sewage treatment, oxidation |
05/17/1988 | US4744904 Food processing, defatting |
05/17/1988 | US4744903 Waste water treatment |
05/17/1988 | US4744895 Compact, movable; for household use on countertop |
05/17/1988 | US4744220 Thermoelectric heating and/or cooling system using liquid for heat exchange |
05/17/1988 | CA1236939A1 Dewaterability of alum sludges using high molecular weight anionic terpolymer flocculants |
05/17/1988 | CA1236684A1 Treatment of effluent liquors |
05/11/1988 | EP0266828A1 Control of biofouling with certain alkylthioalkylamines |
05/11/1988 | EP0266517A2 Device for feeding solids into liquids in a controlled manner |
05/11/1988 | EP0266476A2 Process and device for treating sludge |
05/11/1988 | EP0266352A1 Process and apparatus for treatment of water |
05/11/1988 | EP0154634B1 Water inlet including a rack or frame with drain pipes |
05/11/1988 | DE3638023A1 Plant for treating industrial waste water |
05/11/1988 | DE3637643A1 Method for the arsenic decontamination of aqueous solutions |
05/11/1988 | CN87213601U Dynamic water treatment equipment |
05/11/1988 | CN87107794A Method for separating the hydrocarbon from waste water |
05/10/1988 | US4743405 Apparatus for injecting a gas into a liquid flow |
05/10/1988 | US4743381 Process for oxidizing a cyanide compound |
05/10/1988 | US4743379 Flotation device |
05/10/1988 | US4743376 Water purification by a fluidized bed |
05/10/1988 | US4743366 Control valve assembly for purified water supply system |
05/10/1988 | US4743344 Treatment of wastes from high purity silicon process |
05/10/1988 | US4742623 Process and equipment for the indirect drying of sludge, especially for the drying of wastewater sludge |
05/10/1988 | CA1236598A1 Integral clarifier |
05/10/1988 | CA1236597A1 Method of treating peroxide-containing wastewater |
05/10/1988 | CA1236596A1 Method of controlling an anaerobic treatment process |
05/10/1988 | CA1236454A1 Monomeric cationic glycoside derivatives |
05/05/1988 | WO1988003182A1 Reticulate electrode and cell for recovery of metals from waste waters |
05/05/1988 | DE3635843A1 Process for separating off ammonia from exhaust air or waste water |
05/04/1988 | EP0266312A1 Reticulate electrode and cell for recovery of metals from waste water |
05/04/1988 | EP0266272A1 Process for the recovery of acid organo-phosphorous compounds and/or organo-phosphorous ions from an aqueous solution, and its use in treating aqueous effluents |
05/04/1988 | EP0265941A1 Process for the chemical-physical treatment of waste water |
05/04/1988 | EP0265940A2 Process for recovery of silver from spent, waste, acidic processing fluids |
05/04/1988 | EP0265709A2 A method and composition for the treatment of bathtubs |
05/04/1988 | EP0162095B1 Method and equipment for utilization of the freezing heat of water as a source of heat of a heat pump |
05/04/1988 | CN87214253U Magnetizer for running water |
05/04/1988 | CN86107206A Preparation of a mineral beverage by immersing a bag of china medical stone |
05/04/1988 | CN86106414A Electrolytic method for treating waste water containing vanadium and chromium |
05/03/1988 | US4742231 Radiation sensor |
05/03/1988 | US4741838 Flocculation of high solids mineral slurries |
05/03/1988 | US4741834 Method for underground support and removal of hazardous ions in ground waters |
05/03/1988 | US4741833 Method for reduction of COD in water |
05/03/1988 | US4741831 Process and composition for removal of metal ions from aqueous solutions |
05/03/1988 | US4741828 Sieve-type, bacteriostat |
05/03/1988 | US4741827 Apparatus for separating of liquid films floating on liquids |
05/03/1988 | EP0245376A4 Water treatment apparatus. |
05/03/1988 | CA1235939A1 Method of stripping microbial cells of malodorous or unpleasant taste imparting substances |
04/27/1988 | EP0265300A1 Distillation apparatus for vacuum distillation |
04/27/1988 | EP0265031A1 Apparatus and method for conditioning water |
04/27/1988 | EP0264713A2 Method and plant for obtaining fresh water from saline water |
04/27/1988 | EP0264710A1 Water-soluble quaternary polyammonium salts, process for their preparation and their use |
04/27/1988 | EP0264593A2 Apparatus for scale removal from water-pipes |
04/27/1988 | EP0193565A4 Apparatus for clarification of water. |
04/27/1988 | CN87207787U Non-scal eletric-heating and constant temperature water bathtub |
04/27/1988 | CN87106533A Treatment of blow washing sewage from beet sugar mill |
04/26/1988 | US4740301 Apparatus for purifying water, especially salt water, by reverse osmosis |
04/26/1988 | US4740297 Water softener cabinet |
04/26/1988 | US4740296 Slow rate |
04/26/1988 | US4740244 Process for recovery of silver from spent, waste, acidic processing fluids |
04/26/1988 | CA1235665A1 Method of removal of organometallics from wastewater |
04/26/1988 | CA1235626A1 Hydroquinone catalyzed oxygen scavenger and methods of use thereof |
04/21/1988 | WO1988002739A1 Process for purifying polluted materials and use of the product thus obtained |
04/21/1988 | WO1988002655A1 Process for separating hydrocarbons from waste water |
04/21/1988 | WO1988002651A1 Flushing of desalinating apparatus equipped with reverse osmotic membrane module, and apparatus therefor |
04/21/1988 | WO1988002648A1 Orbital drive evaporator |
04/21/1988 | DE3635411A1 Oxygen enrichment of drinking water |
04/21/1988 | DE3635219A1 Process for the oxidation of scrubbing waters of low thiosulphate concentration |
04/20/1988 | EP0264113A1 Pervaporation of phenols |
04/20/1988 | EP0264041A2 Process and plant for the recuperation of ammoniac by separating nitrogen oxides from flue gases |
04/20/1988 | EP0263992A1 Method of treating waste water resulting from the desulfurization of flue gases |
04/20/1988 | EP0263840A1 System for irradiating liquids with radioactive beams |
04/20/1988 | CN87212732U Dissolved gas releaser of water purifier |
04/20/1988 | CN87205790U Household magnetized water filter |
04/20/1988 | CN86106448A One-step purification process and facilities of waste water containing heavy metals |
04/19/1988 | US4738833 Tiolet bowl cleaner |
04/19/1988 | US4738785 Waste treatment process for printing operations employing water dispersible inks |
04/19/1988 | US4738784 Flotation device |
04/19/1988 | US4738783 Water treatment |
04/19/1988 | US4738750 Coagulation, flocculation, flotation |
04/14/1988 | DE3633545A1 Apparatus for clarifying contact water |
04/14/1988 | DE3633523A1 Process for separating off ammonia from waste waters |
04/13/1988 | EP0263776A2 Process for processing waste water from flue gas purification plants |