| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 01/02/1997 | DE19502440A1 Purifying waste water esp. water from photographic industry, electroplating, eloxal process or neutralisation |
| 01/01/1997 | CN2244046Y High efficient micro electrodialysis desalting device for brackish water |
| 01/01/1997 | CN2244045Y Household water softening device |
| 01/01/1997 | CN2244044Y Separating equipment for paper making waste water |
| 01/01/1997 | CN2243836Y Health and sanitary magnetic cup utensil for common use in life |
| 01/01/1997 | CN1139167A Enclosed and semienclosed papermaking sewage treating equipment and method |
| 01/01/1997 | CN1139076A Scale scouring method using the electric field between conductive liquid and metal container |
| 01/01/1997 | CN1139075A Purifying process of waste water containing dye |
| 12/31/1996 | US5590390 Radiation zone |
| 12/31/1996 | US5589691 Neutralization; precipitation; washing; separation by vacuum distillation |
| 12/31/1996 | US5589078 Advanced filtration technique for fluid purification |
| 12/31/1996 | US5589075 Use of silicon containing polyelectrolytes in wastewater treatment |
| 12/31/1996 | US5589073 During removal of coatings from pipelines, equipment or other structures |
| 12/31/1996 | US5589068 Water treatment and controllers |
| 12/31/1996 | US5589065 Magnetohydrodynamic device |
| 12/31/1996 | US5589064 Apparatus for liquid solid separation of liquid effluents or wastewater |
| 12/31/1996 | US5589058 Apparatus for treatment of water |
| 12/31/1996 | US5589053 Electrolysis process for removal of caustic in hemicellulose caustic |
| 12/31/1996 | US5589050 Electrodialyzer for desalination |
| 12/31/1996 | US5589005 System for supplying ultrapure water and method of washing substrate, and system for producing ultrapure water and method of producing ultrapure water |
| 12/31/1996 | US5588785 Liquid hydrocarbon sorbing and solidifying pillow |
| 12/31/1996 | CA2007974C Liquid oxidizing method and apparatus |
| 12/29/1996 | CA2152890A1 Method for treatment and decolorization of waste water from cosmetic manufacturing processes |
| 12/27/1996 | WO1996041821A1 Process for producing dispersions of water-soluble vinyl polymers and stabiliser for implementing the process |
| 12/27/1996 | WO1996041682A1 Process and device for the treatment of waste water from the wet dedusting of shredders |
| 12/27/1996 | WO1996041674A1 Method and device for treating water according to the principle of reversed osmosis |
| 12/27/1996 | EP0750334A2 Apparatus and method for cleaning semiconductor wafers |
| 12/27/1996 | EP0749778A2 Absorption agent |
| 12/27/1996 | EP0749403A1 Process for purifying and reusing surfactant-containing waste waters |
| 12/27/1996 | EP0749402A1 Preparations and uses of polyferric sulphate |
| 12/27/1996 | EP0749346A1 Water treatment device |
| 12/27/1996 | EP0749342A1 Heat exchanger element |
| 12/27/1996 | EP0677090A4 Ink composition and method of making, using and recovering such composition. |
| 12/27/1996 | EP0660762A4 Oil based composition clean up method and composition for use therein. |
| 12/27/1996 | EP0655938B1 Filter jug |
| 12/27/1996 | EP0654015B1 Process and device for the biological treatment of organically polluted waste water and organic waste |
| 12/27/1996 | EP0641294B1 Process for detaching and coagulating paints |
| 12/27/1996 | CA2220868A1 Method of manufacturing dispersions of water-soluble vinyl polymers and stabiliser for carrying out the meth0d |
| 12/25/1996 | CN2243463Y Multifunctional assembling water tank |
| 12/25/1996 | CN2243461Y Idione supplying water purifier |
| 12/25/1996 | CN2243460Y Electronic water activating cup |
| 12/25/1996 | CN2243459Y Multi-effect hot-pump water distiller |
| 12/25/1996 | CN2243458Y Water purifier with energy accumulation washing mechanism |
| 12/25/1996 | CN1138899A Method and appts for controlling the feed of water treatment chemicals using a voltammetric sensor |
| 12/25/1996 | CN1138847A Method for cleaning contaminated water |
| 12/25/1996 | CN1138835A Oil-absorbing article |
| 12/25/1996 | CN1138559A Method for treatment of waste water in wet fields for planting xylophyta |
| 12/24/1996 | US5587142 Synergistic effect |
| 12/24/1996 | US5587109 Method for inhibition of oxygen corrosion in aqueous systems by the use of a tannin activated oxygen scavenger |
| 12/24/1996 | US5587088 Precipitation and separation of inorganic species from aqueous solutions |
| 12/24/1996 | US5587087 Method and apparatus for treating liquids |
| 12/24/1996 | US5587086 Coagulation |
| 12/24/1996 | US5587085 Adding hydrophobic compound capable of displacing water |
| 12/24/1996 | US5587084 Adsorbing petroleum based pollutants from air and water |
| 12/24/1996 | US5587079 Using bacteria |
| 12/24/1996 | US5587069 Water decontamination apparatus using peroxide photolysis ionizer |
| 12/24/1996 | US5587067 Wastewater treatment apparatus |
| 12/24/1996 | US5587064 Mechanically removing heavy metals from cathodes on which they have been deposited |
| 12/24/1996 | US5587060 Method of removing metal contained in solution |
| 12/24/1996 | US5587057 Highly conductive liquid media electrocoagulation |
| 12/24/1996 | US5587055 Home water purification systems |
| 12/24/1996 | US5587047 Evaporating boric acid containing waste water obtained from nuclear power plant to form steam, fractional distillation of steam to recover boric acid, passing through wash column |
| 12/20/1996 | CA2179353A1 Absorbents |
| 12/19/1996 | WO1996041245A1 On-line continuous monitor to optimize coagulant and flocculent feed in wastewater and paint spray booth systems |
| 12/19/1996 | WO1996041079A1 Ocean thermal energy conversion (otec) system |
| 12/19/1996 | WO1996040803A1 Ion exchange polymers for anion separations |
| 12/19/1996 | WO1996040603A1 Method and apparatus for breaking hydrocarbon emulsions |
| 12/19/1996 | WO1996040592A1 Formic acid and formaldehyde destruction in waste streams |
| 12/19/1996 | WO1996040591A1 Electrolytic treatment device and method for using same |
| 12/19/1996 | WO1996040410A1 Microwave assisted cleaning and reclamation of industrial wastes |
| 12/19/1996 | WO1996040298A1 Electrodeless sterilizer using ultraviolet and/or ozone |
| 12/19/1996 | WO1996039876A1 Improved process for reducing levels of microorganisms in pumpable food products using a high pulsed voltage system |
| 12/19/1996 | WO1996039837A1 Sequestered metal biocides using ionic polymeric stabilizing agents |
| 12/19/1996 | WO1996039825A1 Water treatment with hydrogen peroxide and a polyquaternary ammonium stabilizer |
| 12/19/1996 | WO1996039823A1 Methods for reducing environmental contaminants |
| 12/19/1996 | DE19530772C1 Oxidative treatment of sulphite-contg. waste water |
| 12/19/1996 | DE19521959A1 Treatment of effluent from showers of sinks used by personnel in nuclear power station |
| 12/19/1996 | DE19521741A1 Constant-flow two=stage particle filter appts. |
| 12/19/1996 | DE19521683A1 Arrangement for preventing chalk build-up in washing machines |
| 12/19/1996 | DE19514352A1 Liq. treatment arrangement e.g. for sea water desalination |
| 12/19/1996 | CA2224178A1 Method and apparatus for breaking hydrocarbon emulsions |
| 12/19/1996 | CA2223945A1 Ion exchange polymers for anion separations |
| 12/19/1996 | CA2223704A1 Water treatment with hydrogen peroxide and a polyquaternary ammonium stabilizer |
| 12/19/1996 | CA2223509A1 Improved process for reducing levels of microorganisms in pumpable food products using a high pulsed voltage system |
| 12/18/1996 | EP0748771A2 Method for evaporating process wastewater |
| 12/18/1996 | EP0748766A1 Alkaline-earth metal carbonate based granulate with ab- or adsorptive compounds |
| 12/18/1996 | EP0748298A1 Adsorbent biocatalyst porous beads |
| 12/18/1996 | EP0748296A1 Method for oxidatively decomposing organic compounds in aqueous effluents |
| 12/18/1996 | EP0748254A1 Process for regenerating a catalyst |
| 12/18/1996 | EP0723526A4 Water purification system and removal of halides |
| 12/18/1996 | EP0691878B1 Filter |
| 12/18/1996 | EP0683692A4 Method for recovering particulate and scavenging formaldehyde. |
| 12/18/1996 | EP0614333B1 Use of 1,3,5-triazine-2,4,6-tris-alkylaminocarboxylic acid derivatives as biocidal agents |
| 12/18/1996 | EP0551362B1 Method of absorbing hydrophobic water-immiscible liquids |
| 12/18/1996 | EP0513064B1 Manipulation of solid, semi-solid or liquid materials |
| 12/18/1996 | EP0443024B1 Method and apparatus for electrophoretic separations |
| 12/18/1996 | CN2242886Y Trace-element box |
| 12/18/1996 | CN2242885Y Dot-matrix magnetizer |
| 12/18/1996 | CN2242884Y Active ion water generating device |
| 12/18/1996 | CN2242883Y Domestic ion water-purifying device |