| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
|---|
| 06/14/1990 | WO1990006287A1 Water treatment |
| 06/14/1990 | WO1990006054A1 Anti-microbial agent |
| 06/14/1990 | WO1990003104A3 Method and plant for treating organically charged sewage |
| 06/14/1990 | CA2004746A1 Slurry distribution apparatus |
| 06/13/1990 | EP0372715A1 Polymeric basic aluminum silicate-sulphate |
| 06/13/1990 | EP0372520A2 Slime and deposits controlling process in industrial plants |
| 06/13/1990 | EP0372293A2 Sanitary hot water installation with a device for killing Legionnella pneumophila |
| 06/13/1990 | EP0372158A1 Biofouling resistant apparatus for wastewater treatment |
| 06/13/1990 | EP0185031B1 Method of treating fluids |
| 06/13/1990 | CN2058183U Modified ion exchange column |
| 06/13/1990 | CN2058182U Water purifier |
| 06/13/1990 | CN1042818A Apparatus of ozone supply for receptacles, such as aquaria or the like |
| 06/12/1990 | US4933091 Salt of acrylic acid-ethylene copolymer |
| 06/12/1990 | US4933088 Method of and apparatus for treating water utilizing proton-releasing substance and/or magnetic field |
| 06/12/1990 | US4933087 Acidifying wasterwater, mixing in activated sludge and lime, coagulating and flocculating |
| 06/12/1990 | US4933080 Housing with replaceable filter cartridge for use with shower head |
| 06/12/1990 | US4933076 Multi-unit flush system having carbon adsorber column in calcium carbonate bed |
| 06/12/1990 | US4933046 Water purifying system |
| 06/12/1990 | CA1270111A1 Method of and apparatus for treating and subdividing a liquid using centripetal force |
| 06/07/1990 | DE3901320C1 Process for the utilisation in a water grid of a medical treatment facility of water sterilised by an anodic oxidation |
| 06/07/1990 | DE3844658A1 Apparatus for filtering liquids |
| 06/07/1990 | DE3840670A1 Pressed mouldings of rigid polyurethane foam, process for their production and their use for absorbing oil |
| 06/07/1990 | DE3838931A1 Electronic lime protection filter |
| 06/06/1990 | EP0371822A1 Copolymers of 3-methacryloyloxy-2-hydroxypropyl trimethylammonium chloride monomer and vinyl monomer |
| 06/06/1990 | EP0371702A2 Oxygen removal with carbon catalyzed erythorbate or ascorbate |
| 06/06/1990 | EP0371655A1 Plate separator for fluid mixtures |
| 06/06/1990 | EP0371385A1 Method and apparatus for treating waste material |
| 06/06/1990 | EP0371308A1 Method and agent of disinfecting water |
| 06/06/1990 | EP0371187A1 Process for removing substances for plant treatment from raw water |
| 06/06/1990 | CN2057924U 饮用水净化器 Drinking water purifier |
| 06/06/1990 | CN2057923U Spacerless low resistance electric dialyzator |
| 06/06/1990 | CN1042662A Process and plant for converting pollutant-containing dust into form suitable for dumping |
| 06/05/1990 | US4931262 Method of treating H2 S containing gases |
| 06/05/1990 | US4931225 Method and apparatus for dispersing a gas into a liquid |
| 06/05/1990 | US4931191 Method for separating solids from water using amine containing polymers |
| 06/05/1990 | US4931190 Flocculating agent combinations for mineral slime filtration systems |
| 06/05/1990 | US4931187 Cooling tower system |
| 06/05/1990 | US4931175 Water clarifying apparatus |
| 06/05/1990 | US4931078 Water treating agent |
| 06/05/1990 | US4931072 Method of breaking foam, and arrangement for the same |
| 06/05/1990 | CA2004549A1 Separation process |
| 06/05/1990 | CA2001465A1 Apparatus for processing coolant |
| 06/05/1990 | CA1270077A1 Process for reducing the content of trihalomethane compounds and precursors thereof in influent water |
| 06/05/1990 | CA1269927A1 Method for controlling macroinvertebrates |
| 06/02/1990 | CA2004556A1 Anti-microbial agent |
| 05/31/1990 | WO1990005799A1 Water purification device |
| 05/31/1990 | WO1990005708A1 Method for degradation of halogenated hydrocarbons using a methane-oxidizing bacterium, which produces methane monooxygenase |
| 05/31/1990 | WO1990005706A1 Precipitant or flocculant for treatment of waste water and process involving their use |
| 05/31/1990 | WO1990005705A1 A process of removing phosphate from water, and a system for use in the process |
| 05/31/1990 | WO1990005704A1 Electrolyser for removing fluorine-containing impurities from water |
| 05/31/1990 | WO1990005703A1 Treatment of sludge |
| 05/31/1990 | WO1990005583A1 Liquid-gas mixing device |
| 05/31/1990 | WO1990005580A1 Flow discharge valve |
| 05/31/1990 | DE3901321C1 Apparatus for sterilising water by anodic oxidation |
| 05/31/1990 | DE3840276A1 Device for treating drinking water |
| 05/31/1990 | DE3840123A1 Aerobic biological waste-water purification |
| 05/31/1990 | DE3838864A1 Process for precipitating out and flocculating dissolved water and waste water constituents and suspended matter in water treatment |
| 05/31/1990 | CA2004244A1 Copolymers of 3-methacryloyloxy-2-hydroxypropyltrimethylammonium chloride monomer and vinyl monomer |
| 05/31/1990 | CA2001894A1 Plate separator for fluid mixtures |
| 05/30/1990 | EP0370349A1 Process for removing surface distributed hydrocarbons, especially oil spills |
| 05/30/1990 | EP0370266A1 Use of substituted thio ureas in the separation of complexed heavy metal ions |
| 05/30/1990 | EP0370019A1 Preparation of free-flowing solids from aqueous waste |
| 05/30/1990 | CN2057662U Antiscaling unit |
| 05/30/1990 | CN1042528A Oil-water separator |
| 05/29/1990 | US4929424 Prevention of vapor phase corrosion caused by halogens in brewery pasteurizers |
| 05/29/1990 | US4929382 Cationic coagulants plus colloidal silica for use in paint detackification |
| 05/29/1990 | US4929365 Aqueous stabilized chlorine doxide, nutrient source which results in generation of acidic compound |
| 05/29/1990 | US4929364 Boilers, neutralization |
| 05/29/1990 | US4929361 Method of inhibiting fouling in protein-containing fluids |
| 05/29/1990 | US4929359 Treatment of concentrated industrial wastewaters originating from oil shale and the like by electrolysis polyurethane foam interaction |
| 05/29/1990 | US4929351 Portable ultra-filtration system |
| 05/29/1990 | US4928813 Encased pool chemical capsule with extended ends and method of making the same |
| 05/29/1990 | CA2003606A1 Method and apparatus for treating waste material |
| 05/29/1990 | CA1269767A1 Waste water treatment process |
| 05/29/1990 | CA1269635A1 Electrolyzing method and electrolytic cell employing fluidized bed |
| 05/29/1990 | CA1269622A1 Process for the treatment of boiler condensate |
| 05/29/1990 | CA1269584A1 Oil well biocide |
| 05/29/1990 | CA1269541A1 Inline dispersal valve |
| 05/27/1990 | CA2003200A1 Flocculating agent combinations for mineral slime filtration systems |
| 05/25/1990 | CA2004101A1 Water treatment |
| 05/24/1990 | CA2002041A1 Process for the removal of surface-distributed hydrocarbons, in particular oil residues |
| 05/23/1990 | EP0369584A1 Method for oxygen scavenging and scale prevention in boilers |
| 05/23/1990 | EP0369275A1 Precipitant or flocculant for treating waste water, and process using this agent |
| 05/23/1990 | EP0369015A1 Flotation machine |
| 05/23/1990 | EP0368964A1 Process for extracting water from a liquid fluid. |
| 05/23/1990 | EP0368919A1 Method for the multistage, waste-free processing of red mud to recover basic materials of chemical industry |
| 05/23/1990 | DE3839232A1 Process for the recovery of copper from the effluent of poly(phenylene ether) synthesis |
| 05/23/1990 | DE3838181A1 Process and apparatus for removing nitrogen compounds from aqueous solutions |
| 05/23/1990 | CN1042341A Treatment of waste water from dyestuff production |
| 05/23/1990 | CN1042340A Polymeric basic aluminium silicate-sulphate |
| 05/23/1990 | CN1042319A Method for boron reduction in high-concentrated brine by resin |
| 05/23/1990 | CN1008064B Tubular type water collection uniflow sedimentation device |
| 05/22/1990 | US4927546 2-oxazolidone derivative |
| 05/22/1990 | US4927542 Elimination of hydroxylammonium salts from wastewaters containing such salts |
| 05/22/1990 | US4927533 Water deionizing apparatus |
| 05/22/1990 | US4927511 Method and device for breaking a disperse system in an electrochemical cell |
| 05/22/1990 | CA1269493A1 Process for the improved separation of clarified liquid from biomass in the biological treatment of sewage |
| 05/22/1990 | CA1269361A1 Effluent treatment |
| 05/22/1990 | CA1269301A1 Synergistic biocide of 1,5-pentanedial and a mixture of n-alkyl dimethyl benzyl ammonium chloride and n- dialkyl methyl benzyl ammonium chloride |
| 05/22/1990 | CA1269300A1 Synergistic biocide of tributyl tetradecyl phosphonium chloride and 1,5-pentanedial |