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)
11/1989
11/08/1989EP0340975A1 Ethylene copolymers as sorbers of metallic ions from solutions
11/08/1989EP0340616A1 Installation for the treatment of industrial waste water containing environmentally noxious pollutants and toxic substances
11/08/1989EP0340382A2 Screen cover for a cleaning insert in a water regeneration device with a hollow tube
11/08/1989EP0340353A1 Flocculant for water treatment
11/08/1989CN2047264U High-frequency thermonatrite incrustation remover
11/08/1989CN2047198U Sterilizing water-purification device
11/07/1989US4879489 Radiation-emitting devices
11/07/1989US4879049 Method of removal of polycyclic aromatic hydrocarbons from a liquid
11/07/1989US4879047 Catalytic decomposition of oxidizer
11/07/1989US4879045 Method and apparatus for electromagnetically treating a fluid
11/07/1989US4879042 Method of crystallizing salts from aqueous solutions
11/07/1989US4879041 Vaporization of volatiles before membrane distillation
11/07/1989US4879030 Apparatus for transforming sea water, brackish water, polluted water or the like into a nutrious drink by means of osmosis
11/07/1989US4879027 Binary fluid system, and components thereof, for producing an impregnated metered fluid stream
11/07/1989US4879006 Liquid treatment process
11/07/1989CA1262783A1 Oxidation of sulfides in polymer-thickened aqueous solution
11/07/1989CA1262667A1 Biocidal mixture
11/02/1989WO1989010392A1 Process for extracting water from a liquid fluid
11/02/1989WO1989010201A1 Flotation machine
11/02/1989WO1989010176A1 Process for the chemical bonding of heavy metals from sludge in the silicate structure of clays and shales and the manufacture of building and construction materials therewith
11/02/1989EP0339924A2 Apparatus for the controlled generation and administration of ozone
11/02/1989EP0339457A1 Sewage sludge disinfecting process
11/02/1989EP0339230A1 Process for the detoxification of effluents from ore processing operations with hydrogen peroxide, using a magnetic pre-separation stage
11/02/1989EP0339025A1 Improved process and equipment for purifying treatment and utilization of waste-waters from the dairy industry
11/02/1989DE3911675A1 Device for treating water
11/02/1989DE3813038A1 Process for purifying the exhaust air of vulcanising plants
11/01/1989CN2046887U Axial influx-efflux type electrostatic descaling apparatus
11/01/1989CN1036749A Two-stage combined coagulation for waste water treatment
11/01/1989CN1036748A Portable water purifying devices
11/01/1989CN1036708A Production method of coagulant for clarifying water
11/01/1989CN1036707A Preparation of coagulant for sewage disposal
10/1989
10/31/1989US4877597 By-product inhibition; one step reaction of aluminum sulfate and alkali metal aluminate solution under high shear mixing;
10/31/1989US4877588 Alternating corona and cooling regions allow ozone to form without being thermally decomposed
10/31/1989US4877536 Method of treating saline water
10/31/1989US4877535 Iron dispersant for boiler water
10/31/1989US4877531 Process for treating various refuse materials, particularly smoke, garbage and sewage
10/31/1989US4877525 Pressurized vessel with false bottom and throughpipe coated at weld site
10/31/1989US4877524 Apparatus for treating bodies of water
10/31/1989US4877521 Quick-change filter cartridge and head therefor
10/31/1989US4877519 Reactor and heat exchanger system for cyanide waste water treatment
10/31/1989US4877489 Electronic control and dosing system for desalinators
10/26/1989DE3812705A1 Process for the treatment or preparation of clay or clay-containing compositions, process for the disposal of pollutants by means of clay or clay-containing compositions, and sealing or lining of landfills by means of clay or clay-containing compositions
10/26/1989DE3812544A1 Process for the purification of waste waters from coal gasification
10/26/1989DE3812413A1 Process for isolating, from condensate water or permeate water, water having carbonate hardness
10/25/1989EP0339013A2 Apparatus for waste water treatment
10/25/1989EP0338896A1 Method and apparatus for treating tap water by electrical modulated duration pulses
10/25/1989EP0338697A1 Method and system for variable frequency electromagnetic water treatment
10/25/1989EP0338478A1 Process for decomposition of explosive nitrate esters dissolved in waste waters
10/25/1989EP0338440A1 A microbicidal/microbistatic composition for industrial use
10/25/1989EP0338439A1 A microbicidal/microbistatic composition
10/25/1989EP0338182A1 Apparatus for waste water treatment
10/25/1989EP0338056A1 Apparatus for prevention of the occurence or proliferation of microorganisms in water for industrial use
10/25/1989CN2046611U Energy and water saving apparatus
10/25/1989CN2046500U Osmosis type sea-water desalinating apparatus
10/25/1989CN1036549A Production method of double layers sterilized pill for personal drinking water
10/25/1989CN1036514A Water purification device with intake-funnel
10/24/1989US4876232 Phenanthroline on carbon or charcoal support
10/24/1989US4876036 Process for the extraction of cations and application thereof to the treatment of aqueous effluents
10/24/1989US4876014 Activated carbon, ion exchange resin
10/24/1989US4876003 Elongated capsule with tapered ends
10/19/1989WO1989009750A1 A continuous method for the sterilization of sludge
10/19/1989WO1989009746A1 Calcium hypochlorite composition
10/19/1989WO1989009641A2 Multistep method for separating organic compounds from a solution
10/19/1989WO1989009536A1 Method and apparatus for producing ultrapure water
10/19/1989DE3811591A1 Process for treating waste waters
10/18/1989EP0337941A1 Device for preventing furring and corrosion
10/18/1989EP0337624A2 Control of oilfield biofouling
10/18/1989EP0337455A1 Device and method for reducing volume of aqueous waste effluents
10/18/1989EP0337050A1 Process and apparatus for the partial or total demineralisation of water
10/18/1989CN2046120U Mineral and magnetic water purifier
10/18/1989CN2046034U Domestic fluorine-filtering drinker
10/18/1989CN1036377A Apparatus and process for purification of surface waters
10/17/1989US4874541 Mixture of glucoheptonate, sulfite, polyhydroxy acid, diethylethanolamine and polymer
10/17/1989US4874540 Water treatment
10/17/1989US4874530 Method for treating photographic processing waste solution
10/17/1989US4874529 Flocculating overflow
10/17/1989US4874526 Using phosphonium compound
10/17/1989US4874521 Pulp mill effluent color removal process
10/17/1989US4874509 Oxidation saturation device
10/17/1989US4874496 Device for silverizing drinking water
10/17/1989US4874485 Using aqueous electrolyte containing nitric acid
10/17/1989US4874194 Gripper device
10/17/1989CA1262381A1 Dimeric aluminum compounds and their use
10/17/1989CA1262336A1 Process for removing toxic organic materials from weak aqueous solutions thereof
10/12/1989EP0317556A4 Distillation apparatus and method.
10/12/1989DE3907066A1 Process for decontaminating sludge-like sediments
10/12/1989DE3901938C1 Method for carrying out an electro-dipping process
10/12/1989DE3809600A1 Process and apparatus for rehabilitation of ground water and/or soil
10/11/1989EP0336346A1 Device for electromagnetic treatment of liquids, particularly water
10/11/1989EP0336229A1 Process for the removal of sulfides from waste waters
10/11/1989EP0335971A1 Supported heteropolycyclic compounds in the separation and removal of late transition metals
10/11/1989EP0228396B1 Arrangement for the flocculation of flocculable substances, particularly for the purification of effluents from deinking installations for used paper processing
10/11/1989CN2045734U Calory electromagnetic energy-saving unit
10/11/1989CN2045666U Suspended flocculating unit
10/11/1989CN1036191A Method of producing drinkable mineral water by comprehensive treatment
10/11/1989CN1036145A Application of water soluble barium salt for reducing water soluble azo-compound
10/11/1989CN1005410B Biological purification and purifing equipment of wastewater
10/11/1989CN1005391B Filtering device for fluid
10/10/1989US4873280 Water clarification process and composition and method
10/10/1989US4873065 Flue gas purification process
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