Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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01/04/1995 | EP0631565A1 Method for removing chloramine with catalytic carbon. |
01/04/1995 | EP0267261B1 Fluid purification system |
01/04/1995 | CN2186889Y Health-care magnetizing electrical water heater |
01/04/1995 | CN2186750Y Channel magnetizer |
01/04/1995 | CN1096994A Method for treatment of waste nitric acid from etching zinc plate |
01/03/1995 | US5378898 Electron beam system |
01/03/1995 | US5378374 Lime addition system for water treatment |
01/03/1995 | US5378370 Water treatment tank |
01/03/1995 | US5378367 Method for removing color-imparting contaminants from pulp and paper waste streams using a combination of adsorbents |
01/03/1995 | US5378366 Hot lime precipitation of arsenic from wastewater or groundwater |
01/03/1995 | US5378362 Apparatus for magnetically treating water |
01/03/1995 | US5378339 Water electrolyzer |
01/03/1995 | US5378267 Apparatus for air stripping contaminants from water |
12/31/1994 | CA2123175A1 Sewage treatment process |
12/28/1994 | EP0630858A2 Composition and method for water clarification and wastewater treatment |
12/28/1994 | EP0630857A1 Method of cleaning water and apparatus therefor |
12/28/1994 | EP0630687A1 Method of treating residues from incineration plants for household waste and similar residues |
12/28/1994 | EP0630291A1 Abrasion-resistant carrier catalyst. |
12/28/1994 | EP0630267A1 Treatment of liquid on demand |
12/28/1994 | CN2186238Y Sparkle apparatus of biocolloid |
12/28/1994 | CN2186114Y Efficient hydraulic cyclone |
12/28/1994 | CN1096834A Method for removing organic pollution materials from waste water of papermaking |
12/28/1994 | CN1096769A New technology for treating electroplating waste water with micro-organism |
12/28/1994 | CN1096768A Apparatus for treating waste water |
12/27/1994 | US5376411 Immersing in hydrophilic film-forming solution; partially drying; permeating with microbiocide; completely drying |
12/27/1994 | US5376285 In presence of catalytically effective metal chelate from group of porphyrins, corrinoids, tetrapyridinoporphyrazines and phthalocyanines |
12/27/1994 | US5376284 Method and apparatus for treating effluent containing organic chlorine compound |
12/27/1994 | US5376282 Method and apparatus for controlling zebra mussels in water conduits |
12/27/1994 | US5376281 Plurality of ultraviolet radiators including helical quartz tube through which water flows, ultraviolet light source to irradiate water, plurality of filtration stages, reactor including gold bed, irradiation stage with laser light source |
12/27/1994 | US5376280 Flocculation control system and method |
12/27/1994 | US5376265 Ozone/water contactor |
12/27/1994 | US5376262 Concentrating pollutants, such as selenium, by reverse osmosis |
12/27/1994 | US5376253 Apparatus for the continuous electrochemical desalination of aqueous solutions |
12/27/1994 | US5376250 Method of producing water having a reduced salt content |
12/27/1994 | US5376242 Method of cleaning water and apparatus therefor |
12/27/1994 | US5376240 Reducing to nitrogen and pure water |
12/27/1994 | EP0641252A4 Compositions and processes for removing, separating and concentrating desired ions from solutions. |
12/22/1994 | WO1994029266A1 Sanitizer for swimming pools, spas, and hot tubs |
12/22/1994 | WO1994029228A1 Water purification system and removal of halides |
12/22/1994 | WO1994029223A1 Method for making and using coagulant compositions comprising a clyceride, a polymer and a solvent |
12/22/1994 | WO1994029222A3 Fluid chlorination, for example, employed in a water injection system |
12/22/1994 | WO1994029222A2 Fluid chlorination, for example, employed in a water injection system |
12/22/1994 | DE4319531A1 Ultraviolet suction bell disinfection apparatus |
12/22/1994 | CA2163857A1 Water purification system and removal of halides |
12/21/1994 | EP0630029A1 Method for separating boric acid |
12/21/1994 | EP0629586A1 Process for purifying groundwater, permeable structure to be used therein and process for preparing this structure |
12/21/1994 | EP0629583A2 Method of removing colour from waste water using an aqueous dispersion polymer |
12/21/1994 | EP0629582A1 Device for purifying and revitalizing water |
12/21/1994 | EP0629444A1 Liquid repartition and distribution device within a water treatment unit |
12/21/1994 | EP0629433A2 Method for concentration of paint overspray |
12/21/1994 | EP0629178A1 Apparatus for treatment of effluent |
12/21/1994 | EP0629145A1 Transportable electron beam system and method |
12/21/1994 | EP0629141A1 Removing volatile organic compounds from groundwater |
12/21/1994 | EP0441938B1 Process and installation for extracting fat and/or protein-containing material from fat-containing liquid material, in particular from slaughter deposits and waste |
12/21/1994 | CN2185865Y Health-care water heater |
12/21/1994 | CN2185628Y Purifier for drinking water |
12/21/1994 | CN1096498A Method and apparatus for treating waste water from chlorhydrin biology and containing organic chloride compound |
12/20/1994 | US5374600 Particles of crosslinked polymer packed in bag of hydrophobic porous cloth |
12/20/1994 | US5374599 Catalyst for treating wastewater, process for producing it, and process for treating wastewater with the catalyst |
12/20/1994 | US5374356 Purifying wastewater |
12/20/1994 | US5374352 Universal recycled wash water system |
12/20/1994 | US5374341 Water electrolyzer |
12/20/1994 | US5373646 Process and apparatus for drying material to be dried |
12/20/1994 | CA1333640C Process and apparatus for removing impurities from water used in food processing utilizing a mixture of ozone and air |
12/20/1994 | CA1333639C Well water removal and treatment system |
12/20/1994 | CA1333574C Algal degrading enzyme |
12/20/1994 | CA1333560C Dual freezing chamber system and method for water purification |
12/17/1994 | WO1994028994A1 Process for removing toxicants from aqueous petroleum waste streams |
12/17/1994 | CA2115749A1 Process for removing toxicants from aqueous petroleum waste streams |
12/17/1994 | CA2088417A1 Chlorinator #65 process |
12/15/1994 | DE4320003A1 Process for removing dissolved arsenic by means of solid iron hydroxide in water purification |
12/15/1994 | DE4319974A1 Process for decreasing the toxicity of Cr(VI)-contaminated solid and liquid waste materials |
12/15/1994 | DE4319644A1 Disposal unit |
12/14/1994 | EP0628519A1 Process and installation for purifying wastewater, specially alcaline process-condensate wastewater |
12/14/1994 | EP0628516A1 Method and installation for catalytic elimination of oxygen from water |
12/14/1994 | EP0628337A1 Process for the removal of arsenic from a fluid in presence of a captation mass |
12/14/1994 | EP0628073A1 Ionic binding of microbial biomass |
12/14/1994 | EP0628018A1 Method of separating oil from wash water |
12/14/1994 | EP0627950A1 Water reclamation system and method. |
12/14/1994 | EP0543934B1 Apparatus for magnetically treating flowing liquids |
12/14/1994 | CN2185263Y Treater for waste water of wine lees |
12/14/1994 | CN2185262Y Magnetizer for well water |
12/14/1994 | CN2185261Y Combined structure of stainer core for water strainer |
12/14/1994 | CN2185071Y Multi-element magnetizing china pot capable of cancer prevention and body-building |
12/13/1994 | US5373025 Sanitizer for swimming pools, spas, and hot tubs |
12/13/1994 | US5372781 UV reactor assembly with improved lamp cooling means |
12/13/1994 | US5372726 Reaction of potassium or sodium hydroxide aqueous solution with thiocarbamide and potassium or sodium hyposulfite; removal of percipitate; clear liquid used |
12/13/1994 | US5372725 Method for separation and removal of impurities from liquids |
12/13/1994 | US5372724 Adding ferrous and ferric sulfate, cationic polymer to oxidize and adsorb; volatilizing oils and grease; precipitation, filtration |
12/13/1994 | US5372723 Process for reprocessing oil-in-water emulsions |
12/13/1994 | US5372722 For separation of oil and fat from liquid mixture of cleaning or degreasing solutions; compactness, heat resistance |
12/13/1994 | US5372717 Separation of metal ions on an anion exchange resin by chromatographic elution |
12/13/1994 | US5372712 Biomass growth control apparatus for fluid bed biological reactor |
12/13/1994 | US5372711 Two stage system for skimming floating particles |
12/13/1994 | US5372690 Apparatus for removing contaminants from an aqueous medium |
12/13/1994 | US5372012 Removal of volatile organic pollutants from drinking water |
12/13/1994 | CA2009943C Process for the treatment of waste water from food processing plants |
12/08/1994 | WO1994027918A1 Waste water treatment method, suspensed matter separation method, and method for saturating a liquid with a gas |
12/08/1994 | WO1994027917A1 Water purification composition and its use |
12/08/1994 | WO1994027915A1 Electrochemical treatment process and device for calcium- and/or magnesium-containing water or waste water |