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)
05/1981
05/26/1981US4269663 Water distiller
05/20/1981EP0028925A1 Method of and generator for generation of chlorine-chlorine dioxide mixtures, chlorinating system and method
05/20/1981EP0028913A1 Reverse osmosis liquid purification apparatus
05/19/1981US4268399 Purification of polluted water
05/19/1981US4268397 Oxidizing nitrites to nitrates
05/19/1981US4268367 Electrolytic process for the sterilization of liquids
05/19/1981US4268350 Method of treating pulp bleaching effluents
05/19/1981US4268280 Method of continuously degassing water
05/19/1981US4268269 Field test method for estimation of concentration of organic materials in water
05/19/1981CA1101599A1 Process for separating polyvinyl alcohol from its solution
05/19/1981CA1101568A1 Filtration aid
05/19/1981CA1101567A1 Biological water treatment process
05/19/1981CA1101210A1 Agglomeration of coal fines by aqueous emulsion of oil
05/12/1981US4267455 Purification apparatus
05/12/1981US4267159 Cyanide recovery
05/12/1981US4267130 Portable auxiliary cooling tower
05/12/1981US4267069 Using an aqueous copper salt solution
05/12/1981US4267059 Auxiliary for improving retention, dewatering and working up, particularly in the manufacture of paper
05/12/1981US4267058 Comprising iron(iii)oxide and iron(iii)sulfate
05/12/1981US4267057 Water treatment for selective removal of nitrates
05/12/1981US4267050 Water treatment
05/12/1981US4267049 Comprising hydrolysis by enzymes and enzyme-producing microorganisms
05/12/1981US4267022 Energy efficient process and apparatus for desalinizing water
05/12/1981US4267021 Method and apparatus for solar distillation
05/12/1981CA1100995A1 N-sulphoalkane-aminoalkane phosphonic acids and their alkali salts and process for their production
05/12/1981CA1100905A1 Sewage osmosis system
05/12/1981CA1100902A1 Method and apparatus for purifying emulsions and contaminated water with electrolysis
05/12/1981CA1100819A1 Process for the treatment of a liquid waste and an apparatus therefor
05/12/1981CA1100815A1 Removal of solids from a wet oxidation reactor
05/06/1981EP0028158A1 Methods and systems of removal of metals from solution and of purification of metals and purified solutions and metals so obtained
05/06/1981EP0028094A1 Long vertical shaft bioreactor and method of protecting it against extreme surges of influent waste water
05/06/1981EP0028093A1 Method and apparatus for the separation of gas and solids from waste mixed liquors
05/06/1981EP0028049A1 Operating device for a water conditioning system
05/06/1981EP0027998A1 Process for reabsorption and retention of phosphorus by activated biomass
05/05/1981US4266080 Perfluoroalkylthioethyl ether derivatives
05/05/1981US4266045 Etherified phenolic chelate resin, process for its production, and method for adsorption treatment
05/05/1981US4265863 Integrated process for treatment of residual solutions from anodization plants
05/05/1981US4265857 In-line distillation system
05/05/1981US4265770 Treatment with anionic polyelectrolyte flocculating agent, agglomeration
05/05/1981US4265767 Adsorption using inorganic particles of kieselguhr, silica gel or alumina
05/05/1981US4265760 Disposable
05/05/1981US4265755 Magnetic fluid treating unit
05/05/1981US4265754 Water treating apparatus and methods
05/05/1981US4265753 Aeration filtration tank and water treatment system
05/05/1981US4265747 Disinfection and purification of fluids using focused laser radiation
05/05/1981US4265746 Water treating apparatus and methods
05/05/1981US4265727 Composite electrodes
05/05/1981US4265713 Method and apparatus for distillation
05/05/1981US4265712 Water purification system
05/05/1981US4265700 Method of separating a solid and a liquid phase of a mass
05/05/1981CA1100534A1 Treatment of hazardous waste
05/05/1981CA1100439A1 Combination ion exchange and electrodialysis fluid purification apparatus
05/05/1981CA1100430A1 Method and apparatus for high volume distillation of liquids
05/05/1981CA1100383A1 Process for the preparation of a substantially homogeneous lime water solution
04/1981
04/30/1981WO1981001155A1 Metal recovery method
04/30/1981WO1981001112A1 Apparatus for magnetic treatment of a flowing liquid
04/29/1981EP0027769A1 Metal recovery method
04/29/1981EP0027745A1 A process for the electrochemical degradation of persistent organic compounds, with harmful or potentially harmful properties
04/29/1981EP0027447A1 Gas diffuser, aerator, or sparger apparatus and method
04/28/1981US4264768 Di-quaternary ammonium salts of α-1,4-thiazine alkanephosphonic acids
04/28/1981US4264767 α-1,4-Thiazine alkanephosphonic acids
04/28/1981US4264451 Water purification method
04/28/1981US4264448 With lactobacilli admixed with carbohydrates
04/28/1981CA1100242A1 Water softening method using thermally regenerable ion exchange resin
04/28/1981CA1100241A1 Removal of bacteria
04/28/1981CA1100240A1 Method and apparatus for aerobic sewage treatment
04/28/1981CA1100095A1 Treatment of colloidal like effluents
04/28/1981CA1100090A1 Method and apparatus for electrochemical contaminant removal from liquid media
04/22/1981EP0027359A1 Method of removing oil from water, and bag and two or more linked bags of feathers for use therein
04/22/1981EP0027278A1 Combined iodine-ultraviolet water desinfection process
04/22/1981EP0027239A1 Device for removing polluting products from the surface of liquids
04/22/1981EP0027158A2 Cationic adsorbent, process for its preparation and its use in removing anionic substances from aqueous solutions
04/21/1981US4263234 Method of intimate contacting/separating of plural phases and phase contactor/separator apparatus therefor
04/21/1981US4263146 Contacting with anionic cellulose
04/21/1981US4263137 Apparatus and method for the gravity settling of suspended solids
04/21/1981US4263136 Heating acidified sulfur-containing wastes with hydrogen peroxide
04/21/1981US4263118 Disinfection device
04/21/1981US4263114 Adding salt, circulating through electric field in swimming pool
04/21/1981US4263102 Series of controlled evaporations
04/21/1981US4262489 Method of and apparatus for producing pure water
04/21/1981CA1099840A1 Graft curing of elastomers with adsorbed monomers
04/21/1981CA1099832A1 Waste disposal
04/21/1981CA1099691A1 Magnesia adsorbent and method for treating waste water containing organic contaminants utilizing the same
04/21/1981CA1099673A1 Water dispensers
04/16/1981WO1981001014A1 Device for preparation of dilution liquid for drilling muds
04/16/1981WO1981001007A1 Amphoteric water-in-oil self-inverting polymer emulsion
04/15/1981EP0026938A1 Control of activated sludge wastewater treating process for enhanced phosphorus removal
04/14/1981US4261942 Pelletization, drying to specified moisture content, compaction, crushing, tablettization
04/14/1981US4261857 Method and apparatus for regenerating used active carbon
04/14/1981US4261837 Method and apparatus for purifying water
04/14/1981US4261834 Device and process for removing pyrogens from aqueous solutions
04/14/1981US4261833 Method of pretreating raw water for reverse osmosis units
04/14/1981US4261819 Recovery of heavy metals from solution by contacting with cross-linked casein
04/14/1981US4261818 Method for making separations from aqueous solutions
04/14/1981US4261805 Method for regenerating activated carbon
04/14/1981US4261796 Self-cleaning fractional water distiller
04/14/1981US4261704 Motor fuel additives
04/08/1981EP0026334A1 Separation unit for use in a device for separating of liquids, especially whole blood
04/07/1981US4260587 Pressure compensated potable water chlorinator
04/07/1981US4260496 Water treatment, conveying
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