| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 04/12/2000 | EP0992458A2 Water filter treatment device with trap and heating element |
| 04/12/2000 | EP0992283A2 Method and product for selectively removing ions from aqueous solutions |
| 04/12/2000 | EP0991809A1 Process for treating spent, waste, alkaline digestion liquor from paper pulping operations and product |
| 04/12/2000 | EP0991785A2 A method and a device for recovering metals comprising dissolving , concentrating and electrowinning means with rotatable cathode |
| 04/12/2000 | EP0991596A1 A process and a plant for treatment of landfill leachates |
| 04/12/2000 | EP0991595A1 Immobilization of inorganic arsenic species using iron |
| 04/12/2000 | EP0991594A1 Method and device for sewage treatment |
| 04/12/2000 | EP0891300B1 Method of treating drinking water for consumption |
| 04/12/2000 | EP0660762B1 Oil based composition clean up method and composition for use therein |
| 04/12/2000 | EP0605675B1 Process for lowering the phosphorus content of waste water |
| 04/12/2000 | CN2373723Y Far infrared anion air humidifier |
| 04/12/2000 | CN2373470Y Washing machine capable of killing bacteria on clothes |
| 04/12/2000 | CN2373443Y High-efficient ozone pipe for water quality purifier |
| 04/12/2000 | CN2373442Y Equipment for changing pured water or distilled water to electroreduction water |
| 04/12/2000 | CN2373441Y Chloro-adding absorption safety device |
| 04/12/2000 | CN2373440Y High-frequency water treater |
| 04/12/2000 | CN2373439Y High-efficient magnetic processing kettle |
| 04/12/2000 | CN2373438Y Hyperfilevation three-temp water puring machine |
| 04/12/2000 | CN2373437Y High-efficient purification drinker |
| 04/12/2000 | CN2373436Y Two-segment ultraviolet sterilizer |
| 04/12/2000 | CN1250467A Method and device for purifying contaminated liquids |
| 04/12/2000 | CN1250428A Treatment of effluent streams containing organic acids |
| 04/12/2000 | CN1250427A Hand-held ultraviolet water purification system |
| 04/12/2000 | CN1250426A Facility for desalinating or purifying sea water or brackish water by means of solar energy |
| 04/12/2000 | CN1250031A Lean cyanided ore liquid impurity eliminating technology |
| 04/12/2000 | CN1250030A Low-aluminium water purifying agent and its production process |
| 04/12/2000 | CN1250029A Production process of multicomponent copolymerized solid water purifying agent |
| 04/12/2000 | CN1250028A Secondary pollution preventing system for water inside drinking water machine and tank |
| 04/11/2000 | USRE36651 Process for removal of dissolved hydrogen sulfide and reduction of sewage BOD in sewer or other waste systems |
| 04/11/2000 | US6049021 Method for remediating sites contaminated with toxic waste |
| 04/11/2000 | US6048463 Water continuous methyl acrylate emulsion polymer combinations and methyl acrylate emulsion homopolymers for improved flocculation of red mud in the bayer process |
| 04/11/2000 | US6048460 Biological method of treating sewage containing high concentrations of sludge |
| 04/11/2000 | US6048456 Water filter housing |
| 04/11/2000 | US6048452 Waste treatment device and method employing the same |
| 04/11/2000 | US6048089 Mixing apparatus for maintaining a pressure differential over varying feed rates |
| 04/09/2000 | CA2282235A1 Water filter device having a collecting pot and a heating element |
| 04/09/2000 | CA2249966A1 Method and system for ultraviolet radiation sterilization of gases and fluids |
| 04/06/2000 | WO2000019024A1 Method of water distribution and apparatus therefor |
| 04/06/2000 | WO2000018810A2 Activated carbon filter |
| 04/06/2000 | WO2000018692A1 Wastewater treatment tank with influent gates and pre-react zone with an outwardly flared lower portion |
| 04/06/2000 | WO2000018691A2 Phosphate removal process |
| 04/06/2000 | WO2000018690A1 Rapid coagulation-flocculation and sedimentation type waste water treatment method |
| 04/06/2000 | WO2000018689A1 Method and apparatus for disinfecting drainage |
| 04/06/2000 | WO2000018687A1 Method and device for purification of surface and sewage water |
| 04/06/2000 | WO2000002819A9 Ion exchange removal of metal ions from wastewater |
| 04/06/2000 | WO1999067174A9 Treatment of waste produced by farm animals raised under confined conditions |
| 04/06/2000 | DE19844167A1 Aktivkohlefilter Activated carbon filter |
| 04/05/2000 | EP0990767A1 Process for the preparation of containment barriers impermeable to fluids |
| 04/05/2000 | EP0990622A2 Process and device for biological waste water purification |
| 04/05/2000 | EP0989960A1 Installation for producing ozonized water |
| 04/05/2000 | EP0989959A1 Device for the electrochemical treatment of water or waste water by electroflocculation |
| 04/05/2000 | EP0989958A1 Nitrate reduction |
| 04/05/2000 | EP0989956A1 Polysilicate microgels and silica-based materials |
| 04/05/2000 | EP0989955A1 Polysilicate microgels |
| 04/05/2000 | EP0989898A1 Antimicrobial filter cartridge |
| 04/05/2000 | EP0805713B1 Process and apparatus for purification of contaminated acids |
| 04/05/2000 | EP0739313B1 Method for the supercritical water oxidation of organic compounds |
| 04/05/2000 | EP0637983B1 Device and method to separate the components in mixtures of non-miscible liquids |
| 04/05/2000 | CN2372372Y Purification towerless water supply device |
| 04/05/2000 | CN2372314Y Oxygen-enriched water purifier |
| 04/05/2000 | CN2372313Y Anodic anti-scaling device |
| 04/05/2000 | CN2372311Y Waste water treatment device |
| 04/05/2000 | CN2372310Y 磁性装置 Magnetic device |
| 04/05/2000 | CN2372309Y Capacity operation ion-exchange device |
| 04/05/2000 | CN2372308Y Filtering adsorption equipment |
| 04/05/2000 | CN2372062Y Negative pressure dissolved gas releasing machine |
| 04/05/2000 | CN2372034Y Street sweeper sewage recycle utilization equipment |
| 04/05/2000 | CN2371926Y Magnetized shower nozzle |
| 04/05/2000 | CN1249697A Electrochemically assisted ion exchange |
| 04/05/2000 | CN1249373A Process for removing lignin from black liquor in making paper by soda pulping |
| 04/05/2000 | CN1249275A Process and equipment for separating ions from solution |
| 04/05/2000 | CN1249274A Process for treating acidic sewage from oil refinery by stripping with single side stream tower |
| 04/04/2000 | US6046376 Process for microwave enhancement of gaseous decomposition reactions in solutions |
| 04/04/2000 | US6046375 A nonenzymatic method of generating free radicals to oxidize a target comprising transferring a transition metal from a chelate complex to a free redox cycling chelator complex toreduce the metal; oxidizing; detoxification; remediation |
| 04/04/2000 | US6045820 Iodinated strong base anion exchange resin antiseptic particles attached to a carrier material whereby the antiseptic leaves no halogen residue in sterilized fluid or bodily wound sites |
| 04/04/2000 | US6045708 Killing spores, yeast, fungi and bacteria in drinking water by bringing a sodium percarbonate and/or sodium peroxide into contact with the water |
| 04/04/2000 | US6045707 Electrochemical peroxidation of contaminated liquids and slurries |
| 04/04/2000 | US6045706 Calcium hypochlorite feeder |
| 04/04/2000 | US6045704 Applying a direct current voltage between a conductive adsorber and a primary electrode in the water; at intervals applying a higher second d.c. voltage higher to accelerate generation of chlorine from the raw water; bacteriostats |
| 04/04/2000 | US6045700 Contacting surface water sediment or water column sediment with a porous polymer to adsorb and recovering the polymer selected from polyvinyl butyral and foamed nylon; detoxification; water pollution control; water treatment |
| 04/04/2000 | US6045698 Method for cleaning a filtration installation of the type with immersed membranes |
| 04/04/2000 | US6045696 Solvent extraction of aqueous solutions of mercaptobenzothiazoles, benzothiazoles, mercaptobenzimidazoles and thiosulfates using salts of aliphatic amines having 8 to 50 carbon atoms or an aliphatic or aromaatic hydrocarbon |
| 04/04/2000 | US6045685 Method of reducing an ion concentration in a liquid |
| 04/04/2000 | US6045663 Process for microwave enhancement of wet oxidation |
| 04/04/2000 | US6045068 Method for treating cement slurries |
| 04/04/2000 | CA2114358C Method for stripping contaminants from wastewater |
| 04/02/2000 | CA2246711A1 Methods for controlling macroinvertebrates in aqueous systems |
| 04/01/2000 | CA2249945A1 Two-stage separation process |
| 03/30/2000 | WO2000017331A1 A 2,6-β-D-FRUCTAN HYDROLASE ENZYME AND PROCESSES FOR USING THE ENZYME |
| 03/30/2000 | WO2000017113A1 Electrochemical peroxidation of contaminated liquids and slurries |
| 03/30/2000 | WO2000017111A1 Water activation method |
| 03/30/2000 | WO2000017110A2 Treatment system and method for reducing the oxygen content of the water |
| 03/30/2000 | WO2000017109A1 Method for treating organic substances in an aqueous medium, in particular effluents and electrochemical device for implementing said method |
| 03/30/2000 | WO2000017108A1 High temperature ultra-pure water production apparatus and liquid medicine preparation apparatus equipped with the production apparatus |
| 03/30/2000 | WO2000017107A1 Apparatus for removing residual cleaning chemicals from water |
| 03/30/2000 | WO2000016883A1 Method for the reverse-osmosis separation of salt crystals from mineralised water, device for realising the same, membrane installation and membrane apparatus |
| 03/30/2000 | WO2000016877A1 Fibrous formation containing active substances, a method for the production thereof, and use of the same |
| 03/30/2000 | WO2000007192A3 Method and device for separating a neutron absorber from a cooling medium |
| 03/30/2000 | WO2000000142A3 Absorbent article exhibiting high sustained acquisition rates |
| 03/30/2000 | WO2000000139A3 Device for managing body fluids comprising a fast acquiring liquid handling member that expands upon liquid acquisition and contracts upon liquid release |