Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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08/15/1989 | US4857184 Self-contained water treatment system and enclosure |
08/15/1989 | US4857183 Apparatus for purifying and neutralizing residues from furnaces |
08/15/1989 | US4856559 Faucet providing and utilizing air gap |
08/15/1989 | CA1258544A1 Mud bed clarifying process for liquid laden with solids |
08/15/1989 | CA1258543A1 Removal of ammonia from wastewater |
08/10/1989 | DE3901184A1 Process for purifying flue gases |
08/10/1989 | DE3802543A1 Use of silicone elastomers for the absorption or adsorption of organic compounds |
08/09/1989 | EP0327491A1 Method and installation for removing dissolved oxygen from water, particularly from sea water |
08/09/1989 | EP0327419A1 Basic aluminium chloride sulfate, process for its preparation, its use as a floculating agent |
08/09/1989 | EP0327206A1 Method for killing mollusks |
08/09/1989 | EP0323970A4 Sewage treatment. |
08/09/1989 | CN1034525A Decolorization method of steam cooking black liquor of paper-making, ramie and refining cotton |
08/08/1989 | US4855296 Synergistic mixture of 2-bromo-2-nitropropane-1,3-diol and oxidizing biocide |
08/08/1989 | US4855082 Incorporating into liquid silica glass under high pressure |
08/08/1989 | US4855065 Apparatus and process to separate and remove extraneous matter from a liquid stream |
08/08/1989 | US4855061 Method and apparatus for controlling the coagulant dosage for water treatment |
08/08/1989 | US4855060 Dithiocarbamate of dihexamethylenetriamine |
08/08/1989 | US4855053 Extraction of organic compounds from aqueous solutions |
08/08/1989 | US4855046 Multi-canister, externally-connected ion removal system |
08/08/1989 | US4855043 Water conditioning system |
08/03/1989 | DE3901404A1 Process for the anaerobic fermentation of organic waste products |
08/03/1989 | DE3800713A1 Device for the purification of wastewaters having numerous chambers provided in at least one container |
08/02/1989 | EP0326382A2 Polymeric compositions |
08/02/1989 | EP0325720A1 Method for treating a cyano-containing waste liquid |
08/02/1989 | CN2042078U Defluorination apparatus for natural geothermal mineral water |
08/02/1989 | CN1034351A Technology and facility for fast sterilization by injection of chlorine gas |
08/01/1989 | US4853581 Radiation-emitting devices |
08/01/1989 | US4853507 Apparatus for microwave separation of emulsions |
08/01/1989 | US4853493 Electrographic apparatus |
08/01/1989 | US4853411 Biocide |
08/01/1989 | US4853136 Process for oxidizing substances dissolved or in suspension in an aqueous solution |
08/01/1989 | US4853135 Weakly basic anion exchangers; polystyrene supported; stability |
08/01/1989 | US4853132 Adding water soluble cationic polymer and inorganic salt to precipitate and coagulate paint |
08/01/1989 | US4853131 Method for water treatment |
08/01/1989 | US4853122 P-xylylenediamide/diimide composite RO membranes |
08/01/1989 | US4853088 Solar enhanced separation of volatile components from a liquid |
08/01/1989 | US4853002 Process for removing hydrogen sulfide from waste water |
08/01/1989 | CA1258146A1 Method of preparing cationic terpolymers and product derived therefrom |
07/27/1989 | WO1989006668A1 Process for treating colloidal solutions of lacquer sludges |
07/27/1989 | WO1989006636A1 Process and apparatus for recovery and recycling conveyer lubricants |
07/27/1989 | DE3902028A1 UV-sensor |
07/27/1989 | DE3801528A1 Membrane, process for the production thereof and use of the membrane |
07/26/1989 | EP0325185A2 Apparatus for descaling water by means of a magnetic field |
07/26/1989 | EP0325046A1 Method of and apparatus for controlling pH and/or electric conductivity of water using ion exchange resin |
07/26/1989 | EP0324916A1 Process for upgrading solutions of lacquer sludges |
07/26/1989 | EP0324804A1 Water purification system. |
07/26/1989 | CN2041758U Liquid magnetizing unit mounting in tube |
07/26/1989 | CN2041685U Magnetic water unit |
07/26/1989 | CN2041684U Grease-skimming unit for kitchen |
07/26/1989 | CN2041577U Multipurpose magnetic water spraying and shower unit |
07/26/1989 | CN1034146A Ion-exchange unit with a tube for input and output of resin |
07/25/1989 | US4851818 Electronic controller for a water purifying unit |
07/25/1989 | US4851492 Separating metals from solution |
07/25/1989 | US4851163 Biofouling resistant apparatus for wastewater treatment |
07/25/1989 | US4851131 Oxidation with transition metal catalysts |
07/25/1989 | US4851130 Scavengers |
07/25/1989 | US4851129 Process for the detoxification of effluents from ore processing operations with hydrogen peroxide, using a magnetic pre-separation stage |
07/25/1989 | US4851128 Pretreatment with cationic flocculants |
07/25/1989 | US4851124 To selectively dissolve in an organic solvent immobilized porous hydrophilic membrane |
07/25/1989 | US4851122 Purification, mixture of ion exchange resins |
07/25/1989 | US4850338 Solar collector system with radiation concentrated on heat absorber vanes |
07/25/1989 | CA1257859A1 Self-supporting structures containing immobilized inorganic sorbent particles and method for forming same |
07/25/1989 | CA1257854A1 Bactericidal pellet dispenser |
07/20/1989 | DE3806378C1 Process and appliance for treating ozone-containing, turbid liquids |
07/20/1989 | DE3800613A1 Apparatus for treating water |
07/19/1989 | EP0324634A2 Brewing apparatus for brewing tea or coffee including water purification apparatus |
07/19/1989 | EP0324167A2 Fat, oil and grease flotation treatment of poultry and food industry waste water utilizing hydrogen peroxide |
07/19/1989 | EP0324149A1 Process for the disposal of waste waters from a hardening plant by means of evaporation |
07/19/1989 | EP0323970A1 Sewage treatment. |
07/19/1989 | CN2041435U Automatic controller for softening hard water |
07/19/1989 | CN2041314U Steel-scrap deoxidizing device for water used in boiler |
07/19/1989 | CN1034035A Internally installed fluid magnetic core |
07/19/1989 | CN1033980A Method of and apparatus for treating water by donation of proton |
07/18/1989 | US4849128 Process and composition for conditioning an aqueous system |
07/18/1989 | US4849115 Process for oxidizing organic residues in an aqueous stream |
07/18/1989 | US4849114 Oxidation of toxic compounds in water |
07/18/1989 | US4849100 Portable water purifier |
07/18/1989 | US4849074 Method and apparatus for electrochemically decomposing inorganic materials contained in an aqueous radioactive |
07/18/1989 | CA1257646A1 Fuel cell |
07/13/1989 | WO1989006245A1 Porous article impregnation resin composition, and system for treating impregnation process waste water |
07/13/1989 | WO1989006221A1 Method and apparatus for treatment of raw water |
07/13/1989 | WO1989006220A1 Water purification system |
07/13/1989 | WO1989006154A1 Agglutination reaction vessel |
07/12/1989 | EP0323821A1 Process for treating glyphosate process waste streams |
07/12/1989 | EP0323690A1 Method of separating and recovering a trace amount of oil or protein by donation of proton |
07/12/1989 | EP0323689A1 Method of separating and removing iron ion, aluminium ion or suspended solids by donation of proton |
07/12/1989 | EP0323646A2 Method of separating a higher vapor pressure component and/or particulate matter from a lower vapor pressure component |
07/12/1989 | EP0323610A1 Process and device for thickening waste water sludges and/or other organic sludges by means of separating water from solids |
07/12/1989 | EP0323509A1 Process for preparing cationic, water-soluble resin and water-treating agent containing said resin |
07/12/1989 | CN1033786A Production technology of iron oxide yellow from waste iron and steel pickling liquor |
07/11/1989 | US4847001 Dihydroxybenzene sulfonic acids and salts |
07/11/1989 | US4846979 Swimming pools, polyphosphates, alkali metal or ammonium bromides, oxidizers |
07/11/1989 | US4846978 Recovery of metals from solutions containing chelants |
07/11/1989 | US4846976 Filtration to separate oils from water |
07/11/1989 | US4846240 High cop absorption heat pumped evaporation method and apparatus |
07/11/1989 | CA1257413A1 Apparatus for clarification of water |
07/11/1989 | CA1257412A1 Process and apparatus for controlled addition of conditioning material to sewage sludge |
07/11/1989 | CA1257411A1 Apparatus for the clarification of sewage and other wastes |
07/11/1989 | CA1257222A1 Removal of arsenic from acids |
07/06/1989 | DE3828906C1 Process and apparatus for reverse osmosis |