Patents
Sitemap › C02 - Treatment of water, waste water, sewage, or sludge › C02F - Treatment of water, waste water, sewage, or sludge › C02F 1 - Treatment of water, waste water, or sewage
Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
10/1989
10/10/1989US4872999 Mixture of halides such as NaOCl and a bromide salt for removal of mussels and barnacles from salt or brackish water
10/10/1989US4872998 Coagulation and flocculation, then dewatering, heat drying, pelletization; sewage treatment
10/10/1989US4872994 Method and apparatus for removing organic liquids from water
10/10/1989US4872993 Waste treatment
10/10/1989US4872991 Treatment of water
10/10/1989US4872989 Selective removal of nitrate ions from salt solutions
10/10/1989US4872986 Use of bacteria for control of algal bloom in wastewater, lagoons, or ponds
10/10/1989US4872980 Fluid purification device
10/10/1989US4872959 Electrolytic treatment of liquids
10/05/1989WO1989009436A1 An electronic controller for a water purifying unit
10/05/1989WO1989009192A1 Hydrometallurgical effluent treatment
10/05/1989WO1989009191A1 Method in a continuous chemical precipitation process for water
10/05/1989WO1989009190A1 A sterilized aerosol container having an aqueous saline solution therein and the method for sterilizing the container
10/05/1989WO1989009189A1 Electrolyser for cleaning of waste water
10/05/1989DE3810281A1 Process for preserving service water in motor vehicle washes
10/05/1989DE3810152A1 Apparatus and process for fish culture
10/04/1989EP0335685A2 Salts of 1-methyl-3,5,7-triaza-1-azoniatricyclodecane and their use in the control of microorganisms
10/04/1989EP0335684A2 Salts of 1-methyl-3,5,7-triaza-1-azoniatricyclodecane and their use in the control of microorganisms and inhibition of corrosion
10/04/1989EP0335624A2 Surface active polymers
10/04/1989EP0335571A2 Spiral wrapped fluid treatment element
10/04/1989EP0335280A1 Process for the purification of wastewater containing high concentration of ammonium ion
10/04/1989EP0335210A2 Coagulation process for varnishes and other organic coatings
10/04/1989EP0335066A2 Water purification device with inlet funnel
10/04/1989EP0335043A1 Method and apparatus for softening tap or other water before use
10/04/1989CN2045382U Water-magnetizing device with china medical stone
10/04/1989CN2045244U Magnetic health thermos bottle
10/04/1989CN1035998A Roll grinder method for continuous treatment of waste water contg. v and cr
10/04/1989CN1035997A Treatment of fluorine containing mine waste water
10/03/1989US4871709 Ozone cracking catalyst
10/03/1989US4871518 Recovery or removal of uranium by the utilization of acorns
10/03/1989US4871464 Using acidic phosphoric acid ester
10/03/1989US4871450 Water/wastewater treatment apparatus
10/03/1989US4871431 Apparatus for the removal of dissolved solids from liquids using bipolar membranes
10/03/1989CA1262084A1 Biocide
09/1989
09/28/1989DE3808834A1 Verfahren und vorrichtung zur biologischen reinigung von wasser mit einer verschmutzung an stickstoff- und phosphorverbindungen sowie organischem kohlenstoff Method and apparatus for biological cleaning of water with a contamination of nitrogen and phosphorus compounds and organic carbon
09/28/1989DE3808536A1 Wind power station for producing drinking water using the method of reverse osmosis
09/27/1989EP0334639A1 Filter Device
09/27/1989EP0334527A2 Slime control for primary filtration systems
09/27/1989EP0334078A2 Process of photocatalytic degradation of bentazon
09/27/1989EP0333971A1 An apparatus for destruction of processing liquid, preferably processing liquids from photographic laboratories
09/27/1989EP0333892A1 Magnetic treatment device for liquids
09/27/1989EP0333787A1 Process and device for purifying liquids
09/27/1989CN2044969U Fluid magnetic field treater
09/27/1989CN2044968U Electric dialyzer for treatment of high hard bitter and salt water with high salt content
09/27/1989CN2044967U Oxygen remover for hot-water boiler
09/27/1989CN1035879A Process and apparatus for recovery and recycling conveyor lubricants
09/27/1989CN1035811A Closed processing system for circulative waste water from wool washing
09/26/1989US4869832 Stripping from water by aeration
09/26/1989US4869825 Polychlorinated biphenyls from soils, sediments and sludges
09/26/1989US4869822 Filter apparatus employing hollow fibers
09/26/1989US4869067 Method of generating power
09/26/1989US4869016 Electrolysis using alternating and dirent current to release copper and chlorine ions; antifouling agents; ship hulls; oil rigs
09/26/1989CA1261764A1 Insert for a water purification device
09/26/1989CA1261709A1 Metal recovery
09/26/1989CA1261488A1 Acrylamide diallyl dimethyl ammonium chloride copolymers as improved dewatering aids for mineral processing
09/26/1989CA1261487A1 Polymers of 1-acryloyl-4-methyl piperazine, methyl chloride or sulfate quaternary salts as flocculants
09/26/1989CA1261435A1 System for treating fluids
09/26/1989CA1261334A1 Water soluble monomers
09/26/1989CA1261099A1 Preparation of water soluble cationic polymer and product
09/26/1989CA1260911A1 Biological filter media
09/26/1989CA1259773A1 Flocculating agents and processes for making them
09/21/1989WO1989008718A1 Process for decolorizing aqueous sugar solutions via adsorbent resins, and desorption of color bodies from the adsorbent resins
09/21/1989WO1989008617A1 Process and device for biological purification of water contaminated with nitrogen and phosphor compounds and organic carbon
09/21/1989WO1989008615A1 Ozone emitter device for existing water filtering installations of swimming pools
09/21/1989WO1989008614A1 Method for the processing of organic compounds
09/21/1989WO1989008613A1 Method for catalytic destruction of organic materials
09/21/1989DE3806985A1 Process and apparatus for disposing of dirty water arising from facade cleaning
09/20/1989EP0333673A1 A method and device for the separation of pollutant metal particles or metal compounds, e.g. amalgam, in waste liquids discharged from dental surgery equipment
09/20/1989EP0333672A1 A slow-dissolving solid product formulated from substances capable of precipitating pollutants in the waste liquids discharged from dental surgery equipment
09/20/1989EP0333257A2 Method of selectively removing pollutants from water
09/20/1989EP0333218A2 Process for the removal of metal ions from aqueous systems
09/20/1989EP0332958A1 Process for the decontamination of sludge-like sediments
09/20/1989EP0332951A2 Method and apparatus for electrochemically disinfecting waters
09/20/1989EP0332788A1 Process for treating polluted oil-in-water emulsions or microemulsions
09/20/1989CN2044598U Water clarifier for medium water quality
09/20/1989CN2044597U Electric depurant
09/20/1989CN1035675A Extracting active agent and producing washing powder by utilizing waste water
09/20/1989CN1035649A Preparation technique of concentrate of mineral water
09/20/1989CN1035623A Method for producing compound flocculating agent from coal cinder powder
09/19/1989US4868287 Inhibition of mineral deposition by polyanionic/hydrophobic peptides and derivatives thereof having a clustered block copolymer structure
09/19/1989US4867872 Automatically adjustable weir and environmentally protected sensor
09/19/1989US4867871 Sewage system discharge pump module
09/19/1989US4867856 Electrolysis unit for forming electrolyzed water
09/19/1989US4867256 Injection of polymer chemicals into drilling mud
09/19/1989US4867196 Pool chemical dispenser
09/19/1989EP0327584A4 Orbital drive evaporator.
09/19/1989CA1259572A1 Potable water from internal combustion engines
09/13/1989EP0332550A2 Generator for simultaneously producing hot drinking water and carbon dioxide, and agricultural plants using same
09/13/1989EP0332447A1 Selective removal of metal cations from aqueous effluent solutions
09/13/1989EP0331783A1 Process and apparatus for decoloring and/or neutralising alkaline waste waters and for decreasing their salt content, particularly for purifying effluents from the textile industry
09/13/1989EP0137848B1 Apparatus for destroying microorganisms
09/13/1989CN1035482A Clarificating method of dyeing sewage
09/13/1989CN1035481A Method and apparatus for treatment of raw water
09/13/1989CN1035480A Process for preparation of basic aluminium chloro-sulfonate
09/13/1989CN1035413A Increasing oxygen for fish and shrimp by hydrogen peroxide amide carbonate
09/12/1989US4866080 Method for the control of mollusks
09/12/1989US4865760 Calcium hypochlorite composition
09/12/1989US4865751 Separation of components of a fluid mixture
09/12/1989US4865749 Indoor swimming pool maintenance, cyclone separator, ozone treatment
09/12/1989US4865748 Method and system for variable frequency electromagnetic water treatment
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