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)
11/1991
11/12/1991US5064909 Vinylamine copolymer, flocculating agent and paper strength increasing agent using the same, as well as process for producing the same
11/12/1991US5064879 Method for sorbing metallic ions using ethylene-n,n-dialkyl aminoalkyl acrylates polymers
11/12/1991US5064624 Two phase dispenser
11/12/1991US5064534 Ion exchange adsorption
11/12/1991US5064531 Water filtration apparatus
11/12/1991US5064526 Method for the base-catalyzed decomposition of halogenated and non-halogenated organic compounds in a contaminated medium
11/12/1991US5064515 Electrofilter apparatus and process for preventing filter fouling in crossflow filtration
11/12/1991US5064505 Low-pressure desalinization device
11/12/1991US5064407 Reduced, pelletized, grinding, classification of wastes
11/08/1991WO1991017295A1 Binder for absorbing oily liquids
11/08/1991EP0465485A4 Method for separating oil and water emulsions.
11/08/1991CA2060196A1 Binder for absorbing oily liquids
11/07/1991DE4019351A1 Vacuum valve - esp. for chlorine gas dosing in drinking water treatment equipment
11/07/1991DE4014309A1 Flocculant combination of polymer and low mol. polyionic cpd. - used for clarifying slurry and mud, giving synergistic effect
11/07/1991DE4014023A1 Decontamination of substance contg. cyanide, esp. waste water - by treatment with acid, and stripping and destruction of hydrogen cyanide formed
11/07/1991DE4013129A1 Treating water used for cleaning food smoking equipment - by reducing pH of water by acid, mixing with bentonite, sedimenting and passing over carbon filter bed
11/06/1991EP0455077A2 Combined flocculent
11/06/1991EP0454948A2 Process and apparatus for eliminating acid and heavy metals containing impurities from liquids
11/06/1991EP0454877A1 Method for transferring photon energy or wave energy to a liquid
11/06/1991EP0454864A1 Device for fine foaming
11/06/1991CN2088104U High-frequency field treatment device of water
11/06/1991CN2087984U Hydraulic supercirculation flocculation settler
11/06/1991CN1055974A Non-pollution technology for comprehensive utilization of alkaline straw-pulp black liquid
11/06/1991CN1055910A Fluid purifying apparatus and method of purifying fluids
11/05/1991US5063248 Biocidal compositions and use thereof containing a synergistic mixture of glutaraldehyde and 2-(decylthio) ethanamine
11/05/1991US5063218 Biocidal compositions and use thereof containing a synergistic mixture of n-tributyl tetradecyl phosphonium chloride and trichloro-s-triazine trione
11/05/1991US5063217 Biocidal compositions and use thereof containing a synergistic mixture of n-tributyl tetradecyl phosphonium chloride and a mixture of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiozolin-3-one
11/05/1991US5063216 Biocidal compositions and use thereof containing a synergistic mixture of n-tributyl tetradecyl phosphonium chloride and bis(tributyl) tin oxide
11/05/1991US5063215 Biocidal compositions and use thereof containing a synergistic mixture of n-tributyl tetradecyl phosphonium chloride and 3,5-D-thiadiazine thione
11/05/1991US5063214 Biocidal compositions and use thereof containing a synergistic mixture of n-tributyl tetradecyl phosphonium chloride and sodium hypochlorite
11/05/1991US5063213 Biocidal compositions and use thereof containing a synergistic mixture of n-tributyl tetradecyl phosphonium chloride and bromochlorohydantoin
11/05/1991US5063212 Biocidal compositions and use thereof containing a synergistic mixture of N-tributyl tetradecyl phosphonium chloride and B-bromo-B-nitrostyrene
11/05/1991US5063211 Biocidal compositions and use thereof containing a synergistic mixture of n-tributyl tetradecyl phosphonium chloride and (N,N-dimethyl-N'-phenyl-N'-fluorochloromethylthio)-sulphamide
11/05/1991US5062967 Method for controlling zebra mussels using didecyl dimethyl ammonium halides
11/05/1991US5062966 Process for decomposing solutions of hydroxylammonium salts
11/05/1991US5062954 Cellulose absorbent product and method of manufacture
11/05/1991US5062940 Electrolytic liquid purification apparatus
11/05/1991CA2041627A1 Combination flocculants
10/1991
10/31/1991WO1991016465A1 Method for stripping metals in solvent extraction
10/31/1991WO1991016270A1 Process and apparatus for biological treatment of effluent
10/31/1991WO1991016267A1 Cleaning method and device for pool water, especially fish pool water
10/31/1991WO1991014023A3 Fully automatic current control system for metal depletion cells
10/31/1991DE4013445A1 Water jug or watering can - fitted with permanent magnets for water treatment
10/31/1991DE4013259A1 Removal of solid material content from fibrous suspensions - comprises filtering waste water, drying any solid to specified dry-matter content and mixing with sludge obtd. from further solid-liq. sepn.
10/31/1991CA2041452A1 Method for decontaminating soils
10/30/1991EP0454642A1 Reduction of halogenated organic compounds in spent bleach liquor
10/30/1991EP0454614A1 A fluid purifying apparatus and method of purifying fluids
10/30/1991EP0454356A2 Process for separating extractable organic material from compositions comprising oil-in-water emulsion comprising said extractable organic material and solids
10/30/1991EP0454210A1 Process for elimination of phosphor and suspended matter from waste water
10/30/1991EP0454028A2 Waste treatment process for alkaline waste liquid
10/30/1991EP0453881A1 Process and apparatus for biological purification of waste water
10/30/1991EP0453706A2 Detoxification of exhausted baths of photographic processes and washings by means of anodic oxidation
10/30/1991EP0453646A2 Process for degrading noxious matters containing liquid.
10/30/1991EP0442946A4 Solar aquatic method and apparatus for treating waste
10/30/1991CN2087617U Liquid magnetic treatment device
10/30/1991CN2087529U 多功能净化器 Multifunction purifier
10/30/1991CN2087472U Strong magnetic thermal-insulated cup cover
10/30/1991CN2087471U Superstrong magnetic-water cup
10/30/1991CN1055721A Process for purifying industrial agricultural and civil sewage
10/30/1991CN1055720A Compound water purifying agent and making method as well as application thereof
10/30/1991CN1055719A Water cleaning system
10/30/1991CN1014512B Circulating water jet aeration facility for iron and manganese removal from the underground water
10/29/1991US5061797 Controlling microorganisms and inhibition of corrosion of metal surfaces in aqueous systems
10/29/1991US5061773 For selective metal removal
10/29/1991US5061458 Decontamination apparatus for environmental protection
10/29/1991US5061456 Polymer activation apparatus
10/29/1991US5061376 Method for separating ions from liquids
10/29/1991US5061374 Reverse osmosis as final filter in ultrapure deionized water system
10/29/1991US5061373 Process for treating condensate of steam derived from geothermal brine
10/29/1991US5061372 Water treatment system with preservice rinse
10/29/1991US5061368 System for treating waste water by nitrification
10/29/1991US5061367 Microbiocidal resin, activated carbon element, pressure and temperature-fluid flow detecctors; portable
10/29/1991US5061302 Dissolved gas stripping apparatus
10/29/1991US5060483 Twin rinse columns for freeze concentration of rinsable concentrates
10/29/1991CA1291594C Agent for the removal of nucleic acids and/or endotoxin and method for the removal thereof
10/29/1991CA1291583C Ejector for the co- process in neutralization of alkaline waters
10/29/1991CA1291582C Disposal of material containing vanadium as landfill
10/29/1991CA1291441C Electrode unit with adjustable electrodes for purification of liquids
10/29/1991CA1291339C Device for dosing a flowing fluid
10/28/1991CA2036801A1 Fluid purifying apparatus and method of purifying fluids
10/28/1991CA2030827A1 Reactor vessel using metal oxide ceramic membranes
10/24/1991DE4012496A1 Textile finishing plant - has clean air emission and effluent recycling equipment
10/24/1991CA2040447A1 Fluid purification apparatus
10/24/1991CA2040173A1 Process for separating extractable organic material from compositions comprising oil-in-water emulsions comprising said extractable organic material and solids
10/24/1991CA2015300A1 Method and apparatus for the treatment of water
10/23/1991EP0453414A1 Granular material, in particular of clayey nature, for the adsorption of oily and biological liquids and relative method of production
10/23/1991EP0453289A1 Method for controlling zebra mussels using dialkyl diallyl ammonium polymers
10/23/1991EP0453005A1 Process for scrubbing flue gases
10/23/1991EP0452956A1 Water purifier
10/23/1991EP0452863A2 Process for treating wastes from waste waters obtained from the production of dyes
10/23/1991EP0452597A1 Apparatus for electrolytic treatment of liquid media
10/23/1991EP0452512A1 Process involving sterilization step, product having bacteriocidal activity and process for preparing the same, fumigant, fumigation method, and bacteriocidal gas composition, and process and apparatus for preparing the same
10/23/1991EP0452359A1 Water distilling method and apparatus
10/23/1991CN1055573A Solid controlling and water treating technology for drilling slurry
10/23/1991CN1055528A Composite and highly efficient agent for waste water treatment of drilling mud
10/23/1991CN1055527A Electrolysis device for water treatment
10/22/1991US5060167 Electronic programmable water treatment controller
10/22/1991US5059805 Mineral liquid producing device
10/22/1991US5059577 Fluid absorbent composition
10/22/1991US5059332 Method and device for treating oil sludge and oil-containing waste water
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