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