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)
07/1982
07/27/1982US4341617 For flocculation of impurities
07/27/1982US4341601 Heat exchanging, polymer film, steam, spreading
07/27/1982US4341599 Steam vessel, heater, condenser and separator for solid particles
07/27/1982US4341085 Freeze concentration apparatus and method
07/27/1982CA1128460A1 Heavy metal removal from wastewater sludge
07/27/1982CA1128319A1 Chemical dispenser
07/27/1982CA1128289A1 Method of hydrolyzing urea contained in waste water streams
07/22/1982WO1982002415A1 Installation for spreading clay muds for rehabilitating soils
07/22/1982WO1982002342A1 Removal of hydrocarbon compositions
07/21/1982EP0056117A1 Process for treating a liquid
07/21/1982EP0056068A1 Method of treating waste waters
07/21/1982EP0056054A1 Water purification system.
07/20/1982US4340571 Process for chrome recovery from industrial waste and the like, as from chrome-ladened tannery waste
07/20/1982US4340491 Cold water-insoluble polyvinyl alcohol pouch for the controlled release of active ingredients
07/20/1982US4340490 Process for the detoxification of waste water containing phenol, phenol derivative or phenol and formaldehyde
07/20/1982US4340489 Continuous disinfecting with sulfur dioxide
07/20/1982US4340488 Process and equipment for ultrasonic conditioning of sewage sludges
07/20/1982US4340487 Process for purifying water
07/20/1982US4340486 Oil sorbent structures and method of picking up oil
07/20/1982US4340485 Countercurrent liquid-solid contacting apparatus
07/20/1982US4340484 Method for the froth flotation separation and treatment of slowly biodegradable components in waste treatment
07/20/1982US4340473 Predetermined flow rate which prevents coalescence of particles suspended in medium
07/20/1982CA1128219A1 Removal of metals from solution
07/14/1982EP0055981A1 Water desalination system using the reverse osmosis process
07/14/1982EP0055967A1 Process and apparatus for the treatment of nitrogen compounds containing waste water
07/13/1982US4339596 Treatment of byproduct stream from adipic acid manufacture
07/13/1982US4339332 Pressurized chemical dispenser
07/13/1982US4339307 Distillation apparatus
07/13/1982US4338922 Solar powered chemical processing method and apparatus
07/13/1982CA1127594A1 Rotary electrodic treater with jet action cleaning
07/13/1982CA1127593A1 Treater with self-cleaning electrodes
07/13/1982CA1127550A1 Process and apparatus for purifying sea water by reverse osmosis
07/12/1982EP0044294A4 A desalination apparatus with power generation.
07/08/1982WO1982002201A1 Para-anisole-containing biocide and methods for its isolation and use
07/08/1982WO1982002193A1 Wet oxidation process utilizing dilution of oxygen
07/08/1982WO1982002192A1 Organic sludge dewatering process
07/08/1982WO1982002150A1 Device for water purification
07/07/1982EP0055590A2 Mixed bed deionizer
07/07/1982EP0055489A1 A process for the flocculation of mineral containing slurries
07/07/1982EP0055454A1 A continuous process for wet oxidation of aqueous waste liquors
07/07/1982EP0055414A1 Energy efficient apparatus and process for vaporizing a liquid and condensing the vapors thereof
07/06/1982US4338288 Sorbent for removing metals from fluids
07/06/1982US4338200 Process for the removal of heavy metals from aqueous liquids
07/06/1982US4338199 Processing methods for the oxidation of organics in supercritical water
07/06/1982US4338192 For a liquid purifier
07/06/1982US4338191 Apparatus for treating fluids
07/06/1982US4338178 Apparatus for electrochemical purification of contaminated liquids
07/06/1982US4338102 Device for removing radioactive particles in moist gas
07/06/1982CA1127184A1 Method to selectively recover sodium citrate from an aqueous solution
06/1982
06/30/1982EP0054793A1 Apparatus and process for treating a fluid
06/30/1982EP0054778A2 Process for preparing an anion exchanger, and its use
06/30/1982EP0054777A2 Process for preparing a cation exchanger, and its use
06/30/1982EP0054607A1 Process for eliminating ammonium nitrate from aqueous solutions
06/30/1982EP0054606A1 Process for diminishing the acid content of a nitric-acid solution by means of an electrolytic current, and apparatus therefor
06/30/1982EP0054572A1 Process and device for checking and making up the salt supply in water softeners
06/29/1982US4337209 Process for the manufacture of soap
06/29/1982US4337153 Water softening apparatus
06/29/1982US4337136 By destroying bacteria and algae; containing an electrode of a copper-silver alloy
06/29/1982US4337129 Regeneration of waste metallurgical process liquor
06/29/1982US4336999 Selective mixer for solar pond and method of using same
06/29/1982CA1126882A1 Columnar fine mesh magnetized ion exchange resin system
06/29/1982CA1126664A1 Anti-pollution equipment
06/24/1982WO1982002008A1 Selective rheological separation of clays
06/23/1982EP0054371A1 Process for detoxification
06/23/1982EP0054345A1 Method for reducing the amount of oxygen in an oxygen-containing aqueous medium
06/23/1982EP0054248A1 Raw water treatment process and apparatus
06/23/1982EP0054082A1 Apparatus for water purification
06/22/1982US4336225 Water decontamination apparatus
06/22/1982US4336223 Ultraviolet method for disinfection and sterilization of fluids
06/22/1982US4336156 Quaternary ammonium salts of α-1,4-thiazine alkanephosphonic acids
06/22/1982US4336142 Removal of heavy metals with gamma dicalcium silicate
06/22/1982US4336141 Wastewater treatment
06/22/1982US4336137 Scavenging apparatus
06/22/1982US4335581 Falling film freeze exchanger
06/22/1982CA1126242A1 Petroleum products absorbing cellulose fibre material
06/22/1982CA1126124A1 Stabilised solutions
06/16/1982EP0053846A1 Selective binding of cadmium ions and method of selectively removing cadmium from aqueous solutions
06/16/1982EP0053772A1 A process for treating wastewaters
06/16/1982EP0053733A1 Polyquaternary flocculants
06/16/1982EP0053626A1 Flotation cell
06/15/1982US4334985 Selective rheological separation of clays
06/15/1982US4334968 Apparatus for generation of chlorine/chlorine dioxide mixtures
06/15/1982US4334961 Paired stage flash evaporator having improved configuration
06/15/1982US4334957 Microbicidal compositions for industrial use
06/15/1982US4334954 Apparatus for desalting sea water or brackish water
06/15/1982US4334522 Solar heat apparatus
06/15/1982CA1125932A1 Process and an apparatus for chemical reduction of phosphate content of water by adding at least one reagent which forms a crystalline difficulty soluble salt, and contacting the liquid with a seed material promoting the crystallisation
06/15/1982CA1125931A1 Process for removing cationic substances from aqueous solutions
06/15/1982CA1125930A1 Permanent cobalt catalyst for sulfite oxygen scavenger
06/15/1982CA1125929A1 Excess-growth control system for fluidized bed reactor
06/15/1982CA1125729A1 Regeneration of activated carbon
06/15/1982CA1125662A1 Oil recovery method and apparatus
06/15/1982CA1125651A1 Process of preparing homogenous resin-polyiodide disinfectants
06/15/1982CA1125520A1 Process for precipitating iron as jarosite with a low non-ferrous metal content
06/10/1982WO1982001865A1 Sewage treatment system
06/09/1982EP0053410A1 Process for the removal of urea, ammonia and carbon dioxide from dilute aqueous solutions
06/09/1982EP0053265A1 Process for the regeneration of condensate from urea production plants
06/09/1982EP0053251A1 Method of dewatering sewage sludge in filter presses
06/09/1982EP0053155A1 Method for separating liquids floating at the water surface.
06/08/1982US4333837 Water purification process and apparatus
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