Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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12/29/1997 | EP0814060A2 Process for increasing the pH of acidic water |
12/29/1997 | EP0813502A1 Electrocoalescent system for decontaminating water streams |
12/29/1997 | EP0813501A1 Electrochemical treatment method and device for softening water |
12/29/1997 | EP0755362A4 Electrolytic water treatment |
12/29/1997 | EP0673350B1 Metal accumulation |
12/24/1997 | WO1997048755A1 Water-in-oil emulsion spray drying process |
12/24/1997 | WO1997048750A1 Spray-drying oil recovery process |
12/24/1997 | WO1997048732A2 Spray-dried polymer compositions and methods |
12/24/1997 | WO1997048711A1 Dendrimers based on saccharides |
12/24/1997 | WO1997048646A1 Desalination apparatus and method of operating the same |
12/24/1997 | WO1997048490A1 A method for removing residual water from a container which contains ion exchanger resin, and a device for carrying out said method |
12/24/1997 | WO1997048423A1 Device for catalytically dissolving hydrogen peroxide |
12/24/1997 | WO1997048421A2 Apparatus and methods for the disinfection of fluids |
12/24/1997 | CN2271173Y Tubular sewage treatment apparatus |
12/24/1997 | CN2271172Y Ozone gas and water mixer |
12/24/1997 | CN1168659A Radiation module, its application and method for self-cleaning |
12/24/1997 | CN1168637A Biofilm avoidance and removal process and composition |
12/24/1997 | CN1168353A Metallic ion-linear condensed state magnetized mineral-dissolving water and its preparation method |
12/24/1997 | CN1168352A Special regeneration agent for boiler water treatment |
12/24/1997 | CN1168296A Process for treating waste water of flue gas desulfurization |
12/24/1997 | CN1036774C Preparing method for zinc polysilicate flocculate agent and use |
12/24/1997 | CA2258865A1 Apparatus and methods for the disinfection of fluids |
12/24/1997 | CA2258756A1 Water-in-oil emulsion spray drying process |
12/24/1997 | CA2258688A1 Spray-drying oil recovery process |
12/24/1997 | CA2251807A1 A method for removing residual water from a container which contains ion exchanger resin, and a device for carrying out said method |
12/23/1997 | US5701050 Immersion lamp for a photochemical reactor and its use |
12/23/1997 | US5700893 Comprising a n-vinylamides and a cationic quaternary acrylic ester ammonium or pyridinium compound monomers; papermaking |
12/23/1997 | US5700769 Electrone acceptor is 2,2-azino-bis/3-etylbenzothiazoline-6-sulfonate; inhibits the transfer of textile dye from first dyed fabric to second fabric when washed together |
12/23/1997 | US5700377 Purification of water |
12/23/1997 | US5700371 Water treatment cartridge and base |
12/23/1997 | US5699930 Tank assembly and method for water treatment |
12/23/1997 | CA2094282C Chemical feed apparatus |
12/23/1997 | CA2050480C Process for non-polluting spray painting with a dispersion of oven drying paint in water |
12/18/1997 | WO1997047560A1 Electrode and apparatus for performing electrochemical reactions |
12/18/1997 | WO1997047380A1 Acid contacted enhanced adsorbent and/or catalyst and binder system |
12/18/1997 | DE19624015A1 Sample analyser with unit to reduce halogenated compounds in waste |
12/18/1997 | DE19623379A1 Assembly for destruction of bacteria in liquid foodstuffs |
12/18/1997 | DE19623284A1 Organic adsorption membrane removing particles of wide size range from water |
12/18/1997 | CA2257509A1 Acid contacted enhanced adsorbent and/or catalyst and binder system |
12/17/1997 | EP0813116A1 Process and device for the continuous separation of a photopolymer-water mixture using membranes and filters |
12/17/1997 | EP0812807A2 Process and reactor for continuously microbiologically treating highly loaded wastewater |
12/17/1997 | EP0812806A1 Method and device for purifying polluted water |
12/17/1997 | EP0812805A2 Process and apparatus for treating cold water |
12/17/1997 | EP0812619A1 Inorganic transparent photocatalytic composition |
12/17/1997 | EP0812618A2 Resin fibers for treatment of oil bearing waste water and method of treating oil bearing waste water |
12/17/1997 | EP0812546A1 Food and drink and additive therefor |
12/17/1997 | EP0812538A1 Preservative compositions |
12/17/1997 | EP0812304A1 Method and installation for the removal of resins and tars in wet-scrubbing and wet electrostatic precipitation plants |
12/17/1997 | EP0812303A1 Flocculating agent containing aluminium and a polybasic carboxylic acid |
12/17/1997 | EP0812302A1 System for water disinfection and separation of contaminants |
12/17/1997 | EP0812301A1 Photocatalyst compound and process for production thereof |
12/17/1997 | EP0641252B1 Compositions and processes for removing, separating and concentrating desired ions from solutions |
12/17/1997 | EP0560980B1 Membrane bioreactor system for treating synthetic metal-working fluids and oil-based products |
12/17/1997 | CN2270985Y Automatic control protector for distilled water device |
12/17/1997 | CN2270729Y Improved underwater high dissolved oxygen device |
12/17/1997 | CN2270728Y Mercury sewage treatment pot |
12/17/1997 | CN2270727Y Double grade electrolysis superpure water machine |
12/17/1997 | CN2270726Y Fully automatic continuous ion exchange fibrous water softener |
12/17/1997 | CN2270725Y Sponge iron particle filtering deaerator |
12/17/1997 | CN2270724Y Automatic continuous iron powder filtering ion exchange combined deaerator |
12/17/1997 | CN1168126A Small-cluster water |
12/17/1997 | CN1167744A Production of organic mixed fertilizer using paper-making black liquor waste |
12/17/1997 | CN1167735A Process for preparing effective compound polyaluminium chloride and aluminium sulfate, and use thereof |
12/17/1997 | CN1167734A Water purifier |
12/17/1997 | CN1167733A Method and apparatus for production of drink water and salt |
12/17/1997 | CN1167732A Water purification apparatus |
12/17/1997 | CN1167731A Apparatus for producing deoxygenized hot water for tyre plant |
12/16/1997 | USRE35689 Apparatus for magnetic treatment of liquids |
12/16/1997 | US5699272 Water softening system with self adjusting rinse cycle |
12/16/1997 | US5698512 Water soluble polymers containing allyloxybenzenesulfonic acid monomer |
12/16/1997 | US5698488 Catalytic oxidation of aqueous organic contaminants |
12/16/1997 | US5698139 Method of making poly (linseed oil/isobutyl methacrylate) as a coagulant for oil |
12/16/1997 | US5698109 Purification of aqueous liquor |
12/16/1997 | US5698108 Mixture of water soluble lignosulfate, alkylene polyamine and water |
12/16/1997 | US5698107 Treatment for acid mine drainage |
12/16/1997 | US5698095 Method and apparatus for human waste treatment |
12/16/1997 | US5698091 Pressed carbon block filter and source of radiant ultraviolet energy |
12/16/1997 | US5698028 Composition and process for improving soil |
12/11/1997 | WO1997046595A1 Method and products to absorb oil and organic solvents from water and from sea |
12/11/1997 | WO1997046494A1 Heating and reaction system and method for superchemical treatment of a liquid stream |
12/11/1997 | WO1997046492A1 Process for producing deionized water by electrical deionization technique |
12/11/1997 | WO1997046491A1 Process for producing deionized water by electrical deionization technique |
12/11/1997 | WO1997046490A1 Removal of metal salts by electrolysis using an ion exchange resin containing electrode |
12/11/1997 | WO1997046489A1 Electrolyzed water generating apparatus, cleaning method using electrolyzed water, and cleaning agent used in same |
12/11/1997 | WO1997046305A2 Improved water treatment system |
12/11/1997 | WO1997046300A1 Waste water grease filter |
12/11/1997 | WO1997038943A3 Apparatus and method for oxidizing organic materials |
12/11/1997 | DE19701636C1 Treatment of phosphate cleaning agent solutions contaminated with oil |
12/11/1997 | DE19622430A1 Chemical mechanical process for removing ammonium, nitrogen and phosphate(s) from sewage sludge |
12/11/1997 | CA2257464A1 Heating and reaction system and method for superchemical treatment of a liquid stream |
12/11/1997 | CA2256334A1 Method and products to absorb oil and organic solvents from water and from sea |
12/11/1997 | CA2256326A1 Improved water treatment system |
12/10/1997 | EP0811579A2 UV-fluid treatment system and process |
12/10/1997 | EP0811578A2 Device for fluid sterilization |
12/10/1997 | EP0811017A1 Cellulose particles, method for producing them and their use |
12/10/1997 | EP0810976A1 Purification system for raw water, in particular for waste water |
12/10/1997 | EP0633846B1 Method for automatic washing of vehicles |
12/10/1997 | EP0621801B1 Aminoalkylphosphonic acid containing ligands attached to solid supports for removal of metal ions |
12/10/1997 | EP0546168B1 Silver recovery element and process |
12/10/1997 | CN2270045Y Powerless chlorine dioxide sterilizing device |