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)
04/1980
04/08/1980US4197391 Phenolic chelate resin and method of adsorption treatment
04/08/1980US4197200 Shipboard blackwater physical/chemical treatment system
04/08/1980US4197198 Treatment of nitrated phenol containing effluent streams
04/08/1980US4197197 Method for removing oil film from water surface
04/08/1980US4197195 Divinylbenzene-styrene copolymer as absorbent
04/08/1980US4197181 Recovering metal values
04/08/1980US4197180 Separating solids from liquids
04/08/1980US4197162 Solar heating using the tide
04/08/1980CA1075218A1 Method and apparatus for regenerating used active carbon
04/08/1980CA1075166A1 Sorption of weak organic acids from water by polyurethane
04/08/1980CA1075165A1 Adaptable filtering enclosure
04/02/1980EP0009395A1 Cation exchange process, certain cation exchange resins and materials useful therein and processes for their preparation
04/02/1980EP0009394A1 Ion exchange resin flocs, their preparation and regeneration and ion exchange and filtration processes using them
04/02/1980EP0009304A1 Process for inhibiting scaling in evaporative desalination units
04/01/1980US4196305 Process for removal of phenols from dilute aqueous solutions thereof
04/01/1980US4196086 Filter-purifier cartridge
04/01/1980US4196081 Apparatus for emergency water purification
04/01/1980US4196076 Separation of cobalt and nickel by solvent extraction
04/01/1980CA1074928A1 Water treatment system
04/01/1980CA1074925A1 Solid-liquid separation method for organic waste sludge
03/1980
03/25/1980US4195138 Controlling water hardness by removing multivalent ions
03/25/1980US4195028 Granular flocculants and their manufacture
03/25/1980US4194973 Method of lowering the color of effluent which contains aryl azo- or aryl nitro-containing compounds
03/25/1980US4194972 Method for breaking an oil-in-water emulsion
03/25/1980US4194952 Process for regenerating waste sulfuric acid
03/25/1980US4194950 Liquid purifying apparatus
03/25/1980US4194949 Solar distillation apparatus
03/25/1980CA1074204A1 Composition and method for dispersing high molecular weight flocculant polymers in water
03/25/1980CA1074127A1 Process for precipitating precious metals from solutions which contain them
03/25/1980CA1074082A1 Process for the agglomeration of fines, in particular coal fines
03/20/1980WO1980000436A1 Method for de-salting sea water by means of thermal exchanges of a gas compressor and a combustion engine
03/19/1980EP0008925A2 In-line apparatus for dissolving a solid in a liquid
03/19/1980EP0008856A1 Apparatus and process for dissolution of gases in liquid
03/19/1980EP0008597A1 Apparatus for simultaneous recovery of fresh water and salt or concentrated saline solution
03/18/1980US4193869 Wastewater and wastewater solid processing system
03/18/1980US4193866 Ferrite flocculating system
03/18/1980US4193859 Selective multiple electrode waste water treating system
03/18/1980US4193858 For production of chlorates of hypochlorites of sodium or potassium
03/18/1980US4193854 Heavy metal removal from wastewater sludge
03/18/1980US4193837 Thin layer evaporators
03/18/1980CA1074028A1 Method and apparatus for treating aqueous liquids with ozone
03/18/1980CA1073774A1 Aluminium hydroxychloride compositions
03/18/1980CA1073634A1 Recovery of sulfur values from spent sulfuric acid
03/18/1980CA1073633A1 Ultrasonic disinfection system
03/11/1980US4192852 Process for precipitating iron as jarosite with a low non-ferrous metal content
03/11/1980US4192763 Chlorine tablet and the preparation thereof
03/11/1980US4192744 With dicarboxy substituted tertiary amide as flocculant for iron oxides
03/11/1980US4192649 Process of sizing, weaving, desizing and waste water treatment
03/11/1980CA1073434A1 Purification of iron containing acidic solutions
03/11/1980CA1073365A1 Process and apparatus for removal of ash from waste water treatment system
03/11/1980CA1073333A1 Apparatus for tensioning and locking hooping bands
03/06/1980WO1980000335A1 Process for treating cyanide and cyanate containing wastewaters
03/06/1980WO1980000310A1 Water purification process and system
03/05/1980EP0008395A1 Apparatus for separating liquids from suspensions
03/04/1980US4191820 Polyepihalohydrin, ethylenediamine
03/04/1980US4191728 Process for selective extraction of metal ions from aqueous solutions and extracting agents suitable for that purpose
03/04/1980US4191655 Dewatering composition
03/04/1980US4191645 Water in oil emulsion of cationic copolymer
03/04/1980US4191620 Reduction with mercury
03/04/1980CA1073126A1 Treatment of pulp and paper effluents
03/04/1980CA1072752A1 Solar power generator and water purifier
03/04/1980CA1072725A1 System for pollution suppression
03/04/1980CA1072716A1 Disposable liquid sterilizer unit
02/1980
02/26/1980US4190717 Process for producing polymer from quaternized acrylate monomer
02/26/1980US4190539 Apparatus for on-site renovation of sanitary waters
02/26/1980US4190531 Water-soluble organic fluorine compound
02/26/1980US4190529 Mixed-form polyhalide resins for disinfecting water
02/26/1980US4190510 Process for the electrophoretic breaking of emulsions
02/26/1980US4190509 Electrochemical process for the removal of contaminants from aqueous medium
02/26/1980US4190508 Process for removing chalcophile elements from aqueous solutions by electrolysis
02/26/1980CA1072691A1 Method for the removal of nitrogen compounds in water
02/26/1980CA1072487A1 Production of hypochlorite from impure saline solutions
02/26/1980CA1072412A1 Chrome removal and recovery
02/26/1980CA1072334A1 Treatment of waste liquor
02/26/1980CA1072287A1 Apparatus for irradiating flowable material
02/21/1980WO1980000226A1 Water treatment apparatus and method for treating water
02/20/1980EP0008176A1 A method of recovering heat from waste water in a purifying plant and a purifying plant for carrying out the method
02/20/1980EP0008074A1 Process for the chemical and biological treatment of waste water
02/19/1980US4189384 Gas treatment of liquid
02/19/1980US4189381 Ion exchanging to remove molybdenum, froth flotation by electrolysis, oxidation of cyanide
02/19/1980US4189363 Actinic radiation
02/19/1980US4189362 Method of purifying aqueous solutions of alkali metal hydroxides
02/19/1980CA1072226A1 Method of treatment of water, sewage water and sludge with flocculation agent
02/19/1980CA1072225A1 Process for the treatment of aqueous effluent streams
02/19/1980CA1072018A1 Ship waste water treating with flotation and membrane permeation
02/19/1980CA1072017A1 Oil removal
02/19/1980CA1071839A1 Process for the treatment of acidic waste liquid containing dissolved ferrous salts
02/12/1980US4188340 Polyethers having aminothioether side chains
02/12/1980US4188295 Apparatus for chlorinating and filtering water for swimming pools during filling operation
02/12/1980US4188293 Method of effecting flocculation
02/12/1980US4188292 Ion exchanging, reaction with nitric oxide, nitrous acid or nitrite salt
02/12/1980US4188291 Treatment of industrial waste water
02/12/1980US4188278 Anodic oxidation, electrolytic cell
02/12/1980US4188272 Reduction to trivalent chromium, forming insoluble compound with iron
02/12/1980US4188195 Treatment of waste liquor
02/12/1980CA1071577A1 Galvanic flow system for joint particulate recovery and liquid purification
02/12/1980CA1071543A1 Overload protector for sewage treatment device
02/12/1980CA1071358A1 Method of reducing waste stream pollutants by the control and separation of waste contaminants from a multi-stage cellulosic bleaching sequence
02/06/1980EP0007891A1 Method and plant for collecting of oil floating on water
02/06/1980EP0007783A1 Fluidized-bed reactor having excess growth control system
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