Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
04/1987
04/21/1987CA1220882A1 Apparatus for dissolving ozone in a fluid
04/21/1987CA1220864A1 Water quality early warning system
04/21/1987CA1220739A1 Two component biocidal system
04/16/1987DE3631010A1 Moulded brick arrangement for a floor covering for composting and for purification of waste water or exhaust gas
04/16/1987DE3536149A1 Recovery of fresh water from salt water or brackish water with the aid of solar energy
04/15/1987EP0218487A1 Basic aluminium chlorosulfate, process for its preparation and its use as a coagulating agent
04/15/1987EP0218481A2 Inline dispersal valve
04/15/1987EP0218331A2 Anaerobic treatment of high strength liquors
04/15/1987EP0218066A1 Wastewater purification process
04/14/1987US4657731 Method for removing cesium from an aqueous liquid and purifying the reactor coolant in boiling water and pressurized water reactors
04/14/1987US4657681 Method of converting organic material into useful products and disposable waste
04/14/1987US4657680 Wastewater treatment
04/14/1987US4657678 Twin hydrocyclone
04/14/1987US4657674 Reverse osmosis assembly including an operating valve
04/14/1987US4657672 Immersion type water filter
04/14/1987US4657670 Automatic demand chlorination system
04/14/1987US4657569 Equipment for the generation of cavitation
04/14/1987US4657554 Water-soluble azaphthalocyanines and their use as photoactivators in bleaching
04/14/1987CA1220576A1 Oxidation of polythionates
04/10/1987EP0167569A4 Deoxygenation process and apparatus.
04/10/1987EP0151120A4 Method for removing heavy metals from aqueous solutions by coprecipitation.
04/09/1987WO1987002027A1 Water recirculating apparatus and method
04/09/1987DE3535279A1 Process and apparatus for continuous production and utilisation of condensation water
04/08/1987EP0217402A2 Bactericidal mixture control system
04/08/1987EP0217339A2 Treating aqueous systems with synergistic algacidal compositions
04/08/1987EP0217335A2 Filter apparatus employing hollow fibers
04/08/1987EP0217212A2 Semipermeable composite membrane and process for preparation thereof
04/08/1987EP0217143A2 Composite ion exchanger and method for preparing it
04/08/1987EP0216948A1 Liquid treater having hinge-action cleaning brushes
04/08/1987CN86202493U Pressure-relief evaporator for recovering cyanide plating solution
04/08/1987CN86201582U Fluid magnetizer
04/08/1987CN85108424A Method and apparatus for the clarification of sewage and other impure waste water
04/07/1987USRE32392 Thermally sintered mixture of transition metal oxide and hydroxide and thermoplastic resin; durability
04/07/1987US4656277 Flocculants and for dehydration
04/07/1987US4656059 Wet spray booth treating agent and method for treatment therewith
04/07/1987US4656057 Safening the use of water soluble isothiazolines absorbed on a carrier solid by enclosing in a membrane of hydrophobic film
04/07/1987US4656020 Redovering wastes; pollution control
04/07/1987US4655935 Detoxification of waste water from dithiocarbamate manufacture
04/07/1987US4655934 Basic aluminum halide as flocculants to clarify water
04/07/1987US4655933 System of ionized oxygen allotrope gas water purification and method and apparatus therefor
04/07/1987US4655932 Method and apparatus for the disintegration and destruction of hazardous and toxic sludge materials
04/07/1987US4655931 Waste water treating agent and method for producing the same
04/07/1987US4655930 Process for the removal of elemental oxygen by means of a reducing agent in a coolant circulating in one or more closed circulations, and apparatus for the removal of elemental oxygen
04/07/1987US4655929 Recycling; recovering hydrogen fluoride and ammonium hydroxide
04/07/1987US4655928 Recycling
04/07/1987US4655909 Ion exchange units, regeneration; batch operation
04/07/1987US4655895 Apparatus for purifying effluents and liquids
04/07/1987US4655814 Water soluble violet dye and enzyme
04/07/1987US4655796 Simulated countercurrent flow
04/07/1987CA1220162A1 Subjecting cleaned waste water to anodic oxidation, flocculation, and biological treatment
04/07/1987CA1220130A1 Process for the purification of water
04/02/1987DE3633470A1 Process and apparatus for producing a sludge structure of high surface area
04/02/1987DE3632309A1 Process and apparatus for water treatment
04/01/1987EP0216413A2 A process and an apparatus for the preparation of a disinfectant for water, such as drinking- or swimming-water
04/01/1987EP0216069A2 Process for water oxygenation
04/01/1987CN86205862U Health care device in cup
04/01/1987CN86203085U Automatically controlled duplex tank to directly purify waste water by its circulation at the slot edges
04/01/1987CN85107131A Method for preparing complex coagulant
04/01/1987CN85107021A Condensing method of layered soil
04/01/1987CN85106939A Method and device of dual-coagulation of electrolytic process for industrial sewerage disposal
03/1987
03/31/1987US4654322 Cysteine residue bonded to carrier
03/31/1987US4654201 Process for producing a flocculating agent
03/31/1987US4654149 Process for treating ammonium nitrate-containing waste water
03/31/1987US4654148 Process for the removal of iron cyanide complex or complexes from an aqueous solution
03/31/1987US4654144 Process for the destruction of noxious gases with ozone
03/31/1987US4654142 Filtering system
03/31/1987US4654139 Monitoring floc growth
03/31/1987US4654071 Process for the treatment of liquid manure
03/31/1987US4654064 Crystallization, vaporization, heat exchanging
03/31/1987CA1219881A1 Extraction of halogenated hydrocarbons from aqueous solutions using phosphine oxides on inert supports as the extractant
03/31/1987CA1219813A1 Evacuation and de-aeration process and device for sludges in an etching bath
03/26/1987WO1987001770A1 Process and device for creating and exploiting a pressure differential and its technical application thereof
03/26/1987WO1987001690A1 Method and device for the oxygen enrichment of waters
03/26/1987WO1987001688A1 Method of treating fluids
03/26/1987WO1987001687A1 Process for removing volatile contents from waste liquids produced in coking plants
03/26/1987DE3533936A1 Sterilising filtration process and water sterilisation apparatus therefor, in particular having a sterilising filter and/ôor a fine clarifying filter
03/25/1987EP0215562A1 Biocidal mixtureand method for the treatment of water
03/25/1987EP0215390A2 Process and device to adjust a pH range in waste water
03/25/1987EP0215377A2 Water treatment package
03/25/1987EP0215087A1 Cross-flow filtration.
03/25/1987EP0215013A1 Magnetic conditioning of hard water.
03/24/1987US4652686 Process for producing hydrocarbons from biological sludge
03/24/1987US4652382 Process and apparatus for continuously treating sewage wastewater by chemical oxidation
03/24/1987US4652381 Battery plant waste water treatment process
03/24/1987US4652378 Solar ponds; flocculation agent
03/24/1987US4652376 Method for disposing emulsifiable oil-containing waste water
03/24/1987US4652375 Process for selectively extracting dissolved salts from aqueous media
03/24/1987US4652371 Integral clarifier
03/24/1987US4652370 Ozone water purifying apparatus
03/24/1987US4652368 Water filtration system
03/24/1987CA1219699A1 Cationic polymer compositions
03/24/1987CA1219545A1 Water heater and distiller apparatus
03/19/1987DE3533098A1 Apparatus for water softening
03/19/1987DE3528197A1 Process for breaking emulsions in which water is present as the continuous phase and apparatus for carrying out the process
03/18/1987EP0214934A2 Evaporation apparatus and installation with such an apparatus for the desalination of sea water
03/18/1987EP0214854A2 Treatment of liquids
03/18/1987EP0214850A2 Method for the control of algae in aqueous systems
03/18/1987EP0214648A2 Deoxygenation and purification of liquids
03/18/1987EP0214577A2 Method of reducing water hardness
03/18/1987CN86202796U Automatic sewage disinfector of hospital