Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
03/1985
03/27/1985EP0135486A1 Method of controlling an anaerobic treatment process
03/27/1985EP0135298A2 A method for concentrating and separating water soluble polymeric material containing carboxylic acid mers from an aqueous system containing the polymeric material and other soluble ionic material and a kit of parts for carrying out such method
03/27/1985EP0135144A1 Liquid gas injection system for wet oxidation vessel
03/26/1985US4507273 Oxidation process for production of acidic ferric sulphate
03/26/1985US4507253 Equipment for gassing a liquid and process for operating the equipment
03/26/1985US4507209 Destabilization of sludge with hydrolyzed yam starch flocculants
03/26/1985US4507208 Process for handling waste from oil well operations
03/26/1985US4507207 Process for the chemical removal of phosphorus compounds from waste water
03/26/1985US4507206 Method for restoring and maintaining eutrophied natural bodies of waters
03/26/1985US4507193 From a subatmospheric environment
03/26/1985US4507175 Heat exchanging
03/26/1985CA1184532A1 Magnetic water conditioning device
03/26/1985CA1184473A1 Device for automatic circulation in sewage water pump stations
03/26/1985CA1184469A2 Filter media, method for oxidizing and removing soluble iron, method for removing and inactivating microorganisms and particulate filter aid
03/26/1985CA1184372A1 Detoxification or decontamination of effluents and/or flue gases
03/20/1985EP0134766A1 Method of treating peroxide-containing wastewater
03/20/1985EP0134393A2 Process for separating hydrocarbons from water, particularly ground water
03/20/1985EP0134271A1 Process and plant for the biological depuration of effluents
03/19/1985US4506081 Micorbiocides, corrosion resistance, delamination, flocculants, softners, antistatic, demulsifiers
03/19/1985US4505889 Protracted release microbiocidal article for aqueous systems
03/19/1985US4505839 Quaternaries, demulsifiers, flotation agents
03/19/1985US4505831 Waterbase paints, cutting fluids
03/19/1985US4505828 Amphoteric water-in-oil self-inverting polymer emulsion
03/19/1985US4505823 Filtering device for treating contaminated aqueous solutions
03/19/1985US4505815 Magnetic liquid treating device
03/19/1985US4505734 Copper based algaecides and aquatic herbicides
03/19/1985US4505728 Vacuum freezing multiple phase transformation process and apparatus for use therein
03/19/1985CA1184165A1 Polymeric material, preparation thereof and utilisation in treatment of water
03/14/1985WO1985001076A1 Water inlet including a rack or frame with drain pipes
03/14/1985WO1985001041A1 Electrostatic water treatment and electrode therefor
03/13/1985EP0134061A1 Method and apparatus for separating from each other the components of a mixture of oil, water and soil
03/13/1985EP0133920A1 Automatically controlled system for sanitizing water bodies
03/13/1985EP0020678B1 Method for sewage treatment with bacteria
03/12/1985US4504394 Process for the treatment of organic fall-out products
03/12/1985US4504389 Removable cartaidge; household faucets
03/12/1985US4504387 System and method for water purification
03/12/1985US4504362 Solar desalination system and method
03/12/1985US4504356 Continuous process of removing silica from spent pulping liquors
03/12/1985CA1183974A1 Treatment of industrial wastewaters
03/06/1985EP0133677A2 Method and apparatus for the demineralization of water for a dishwashing machine
03/05/1985US4503017 Precipitation of sulfides
03/05/1985US4503016 Process for extracting heavy metal ions from aqueous solutions
03/05/1985US4502975 Water pollution control
03/05/1985US4502962 Hydrocarbon solvent-based dispersant formulation and its use in the dispersion of viscous oil spills
03/05/1985US4502961 Destabilization of sludge with hydrolyzed cassava starch flocculants
03/05/1985US4502960 Insoluble metal salts formed in situ
03/05/1985US4502959 Purification of secondary recovery waterflood liquids
03/05/1985US4502958 Method and device for the separation of suspended solids in waste water
03/05/1985US4502953 Water purifying apparatus with air check valve and filter condition indication
03/05/1985CA1183618A1 Method of clarifying proteinaceous waste water containing solid impurities
03/05/1985CA1183487A1 Liquid purification system
02/1985
02/28/1985EP0118428A4 An improved method and apparatus for recycling energy in counterflow heat exchange and distillation.
02/27/1985EP0133614A2 Method for the biological transformation of substrates
02/26/1985US4501834 Gels formed from anionic and cationic polymers
02/26/1985US4501671 Method and apparatus for treatment of oily waste
02/26/1985US4501668 Mixing with acrolein-formaldehyde condensation product for deodorizing
02/26/1985US4501666 Contacting with a phosphomethylaminochelate resin
02/26/1985US4501664 Method and apparatus for treating organic wastewater
02/26/1985US4501661 Method and apparatus for purification and activation of water
02/26/1985CA1183289A1 Water clarification
02/19/1985US4500494 Microencapsulated chelating agents and their use in removing metal ions from aqueous solutions
02/19/1985US4500434 Injection of brine-soluble acid
02/19/1985US4500433 Method of removing salts of the alkali earth metal group from water
02/19/1985US4500428 Dewatering, oxidizing and acidification followed by exposure to ozone and air
02/19/1985US4500427 Activated-sludge process for wastewater treatment
02/19/1985US4500404 Chlorine generator device
02/19/1985US4500324 Precipitation of nickel as nickel-dimethyl glyoxime comples
02/19/1985CA1182839A1 Extraction of phenols from aqueous solutions
02/19/1985CA1182761A1 Fluid treatment apparatus
02/19/1985CA1182759A1 Filter media for cleansing entrained oils from oil-in- water emulsions
02/19/1985CA1182758A1 Apparatus for filtration
02/14/1985WO1985000532A1 Thermal membrane distillation system
02/13/1985EP0133143A1 Portable device for injecting and mixing a liquid product into a water conduit
02/13/1985EP0133104A1 Process for retaining a substance dissolved in a solution
02/13/1985EP0132906A2 Extracting chromium (III) from aqueous solutions with 2-ethylhexyl acid phosphate
02/13/1985EP0132762A2 A filter for purifying drinkable and non-drinkable water
02/13/1985EP0132700A1 Liquid phosphine oxide systems for solvent extraction
02/13/1985EP0132546A1 Filtration and separation apparatus for fluids, particularly for water desalination and purification by reverse osmosis and ultrafiltration
02/12/1985US4498993 Process for the treatment of clay slimes
02/12/1985US4498991 Fluid flow through zones where components have different velocities due to selective retardation or acceleration
02/12/1985US4498959 Cooling attachment for solar distiller
02/12/1985US4498921 Trichloroisocyanuric acid composition
02/12/1985CA1182594A1 Treatment of water
02/12/1985CA1182593A1 Apparatus for treating liquids through ion exchange resin, especially a domestic water softener
02/12/1985CA1182495A1 Apparatus for slurrying powdered solids
02/12/1985CA1182419A1 Oil sludge conditioning process and equipment
02/05/1985US4497749 Check valve for ammonia injector apparatus
02/05/1985US4497712 Highly permeable non-woven synthetic fiber
02/05/1985US4497663 Method of encapsulating a polluting liquid
02/05/1985US4497177 System for obtaining air movement
02/05/1985CA1181916A1 Salt recovery system for a liquid curing medium
01/1985
01/31/1985WO1985000355A1 Method and apparatus for on site treatment of waste water with radiation activated fluid
01/31/1985WO1985000354A1 Process and apparatus for handling waste from oil well operations
01/31/1985WO1985000298A1 Contacting a gas and a liquid to remove an unwanted gas
01/29/1985US4496452 Electrolytic cell for small scale use
01/29/1985US4496374 Addition of talc to coagulate particles in a wash solution
01/29/1985CA1181698A1 Waste treatment process and apparatus
01/29/1985CA1181653A1 Process and composition for conditioning an aqueous system
01/22/1985US4495367 High charge density, cationic methacrylamide based monomers and their _polymers
01/22/1985US4495200 Treatment with a dithiocarbamate