| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 03/05/1997 | CN2248708Y Automatic apparatus for desalting sea water for emergency purpose |
| 03/05/1997 | CN2248707Y Improved machine for producing distilled water |
| 03/05/1997 | CN2248692Y Magnetization box |
| 03/05/1997 | CN1144519A Oxidation process |
| 03/05/1997 | CN1144198A Life waste water recovery purifying water supply method and process for converting sewage, refuse into fertilizer |
| 03/05/1997 | CN1144196A Biological cell purifying equipment and method |
| 03/05/1997 | CN1144195A Drinking water iodine-adding method and its device |
| 03/05/1997 | CN1144194A Process for treatment of waste water containing cyanogen by acidifying precipitation method |
| 03/05/1997 | CN1144193A Medicinal water, method of production thereof, and dialysis apparatus using water as dialysis liquid |
| 03/04/1997 | US5608135 Process for decreasing chlorine content of chlorinated hydrocarbons |
| 03/04/1997 | US5607597 Method for enhancing biocidal activity |
| 03/04/1997 | US5607595 Process for purifying water |
| 03/04/1997 | US5607593 Installation for making water potable with submerged filtering membranes |
| 03/04/1997 | US5607592 Process and device for the separation of substances dissolved in the washing water used in processing bath of a photographic film |
| 03/04/1997 | US5607562 Electrolytic ozone generator |
| 03/04/1997 | US5607552 Silica-based anionic particles, smectite |
| 03/01/1997 | CA2184309A1 Process for the purification of gases |
| 03/01/1997 | CA2183603A1 Process for the removal of heavy metals from aqueous systems using organoclays |
| 02/27/1997 | WO1997007177A1 Method of manufacturing an absorption substrate |
| 02/27/1997 | WO1997007064A1 Magnetic separation |
| 02/27/1997 | WO1997007062A1 Improved method of treating water |
| 02/27/1997 | WO1997007061A1 System for water disinfection and separation of contaminants |
| 02/27/1997 | WO1997007060A1 Water treatment method |
| 02/27/1997 | WO1997007059A1 Method of processing an aqueous solution in the amine oxide process |
| 02/27/1997 | WO1997006885A1 Magnetic fluid treatment |
| 02/27/1997 | WO1997006880A2 Vertical skein of hollow fiber membranes and method of maintaining clean fiber surfaces |
| 02/27/1997 | WO1997006879A1 Portable multi-stage filter unit for purifying water |
| 02/27/1997 | WO1997006878A1 Compact portable hand-operated filter for purifying water |
| 02/27/1997 | WO1997003925A3 Method and apparatus for waste water treatment |
| 02/27/1997 | DE19532807A1 Utilisation of solar radiation for photochemical or photo-biological processes |
| 02/27/1997 | DE19532800A1 UV active materials for solar water disinfection, photo=dynamic therapy (PDT) or photo=chemotherapy |
| 02/27/1997 | DE19531241A1 Verfahren zur Desinfektion wäßriger Lösungen Method for disinfecting aqueous solutions |
| 02/27/1997 | DE19530794A1 Process for treatment of waste water from thermal baths |
| 02/27/1997 | DE19530593A1 Decontamination of old waste disposal sites from which hydrogen sulphide is being emitted |
| 02/27/1997 | CA2229584A1 Magnetic separation |
| 02/27/1997 | CA2229281A1 Improved method of treating water |
| 02/27/1997 | CA2202347A1 Method of processing an aqueous solution in the amine oxide process |
| 02/26/1997 | EP0759411A1 Oxydation process of an aqueous solution containing a sulphite |
| 02/26/1997 | EP0759326A2 Brine solution container |
| 02/26/1997 | EP0759325A2 Process and device for regenerating an installation of water treatment according to the ion exchange principle |
| 02/26/1997 | EP0759015A1 Wastewater pretreatment tank assembly |
| 02/26/1997 | EP0759014A1 Dadmac/vinyl trialkoxysilane copolymers for enhancement of fine coal treatments |
| 02/26/1997 | EP0759013A1 Water sterilisation apparatus |
| 02/26/1997 | EP0759012A1 Process for removing polluting material from water or wet solid matter |
| 02/26/1997 | EP0758922A1 Process for the demineralization of a liquid containing dissolved organic substances and salts |
| 02/26/1997 | EP0660804B1 Method for the purification of metal-containing aqueous media and method of preparing an adsorbent |
| 02/26/1997 | CN2248190Y High grade treating device for drinking water |
| 02/26/1997 | CN2248189Y Double water jet ejector type chlorine gas absorber |
| 02/26/1997 | CN2248188Y Water filter capable of separating waste water from clean water |
| 02/26/1997 | CN1143998A Device for superheating steam |
| 02/26/1997 | CN1143941A Method of operating sequencing batch reactor |
| 02/26/1997 | CN1143614A Micro-eddy low-impulse small water supplying purifying technique and equipment |
| 02/26/1997 | CN1143613A Universal strong-magnetic block for soaking in water in cup |
| 02/26/1997 | CN1143612A Pure water producing structure for pure water machine and its use |
| 02/26/1997 | CN1143536A Aldehyde-based surfactant and method for treating industrial, commercial, and institutional waste-water |
| 02/26/1997 | CN1034135C Method for removing organic pollution materials from waste water of papermaking |
| 02/25/1997 | US5606723 Coil, voltage detector |
| 02/25/1997 | US5606107 Formic acid and formaldehyde destruction in waste streams |
| 02/25/1997 | US5605994 Polymers containing bis-imidazolyl units; metal scavengers |
| 02/25/1997 | US5605970 Synthesis of high molecular weight anionic dispersion polymers |
| 02/25/1997 | US5605633 Process for treating photographic waste water |
| 02/25/1997 | US5605632 Ion exchange resin and pump |
| 02/25/1997 | US5605611 Carbon dioxide-generating electrode apparatus |
| 02/25/1997 | US5605400 Mixing element and method of producing the same |
| 02/25/1997 | CA2089554C Silver recovery element and process |
| 02/20/1997 | WO1997006111A1 Dewatering of aqueous suspensions |
| 02/20/1997 | WO1997006109A1 Portable water purification device |
| 02/20/1997 | WO1997006108A1 Portable water sterilizer |
| 02/20/1997 | WO1997006106A1 Water decontamination using a photolysis ionizer |
| 02/20/1997 | WO1997006098A1 Method of preparing aqueous chlorine dioxide solutions |
| 02/20/1997 | WO1997005945A1 Producing high purity water using reverse osmosis |
| 02/20/1997 | DE19531933A1 - Improving alkali and hydrothermal stability of Y=zeolite adsorption prods. surface treated with sodium aluminate |
| 02/20/1997 | DE19530096A1 Verfahren zur Herstellung eines Aufnahmesubstrates A method for producing a recording substrate |
| 02/20/1997 | DE19530086A1 Treatment of surface or waste water |
| 02/20/1997 | DE19529861A1 Lipid concentrate used as fodder additive contg. lipid and lecithin |
| 02/20/1997 | CA2228158A1 Producing high purity water using reverse osmosis |
| 02/20/1997 | CA2223855A1 Dewatering of aqueous suspensions |
| 02/20/1997 | CA2201706A1 Portable water sterilizer |
| 02/19/1997 | EP0758636A1 Process for the treatment of waste water from a bisphenol-A preparation process |
| 02/19/1997 | EP0758627A2 Water treating method and apparatus treating waste water by using ion exchange resin |
| 02/19/1997 | EP0758304A1 Process for treating a medium containing organic constituents |
| 02/19/1997 | CN2247656Y Undershaft water purifier for coal mine |
| 02/19/1997 | CN1143336A Rectangular floatation plant |
| 02/19/1997 | CN1143332A Water treatment device |
| 02/19/1997 | CN1143329A 热交换器元件 Heat exchanger elements |
| 02/19/1997 | CN1143072A Technology for recovering organic mass in naphthalene series dye intermediate waste mother liquor by trialkylamine |
| 02/19/1997 | CN1143050A Method for treating liquid |
| 02/18/1997 | US5603987 Composite particulate material and process for preparing same |
| 02/18/1997 | US5603912 Reacting basic aluminum chloride with a sulfate source, modifying the reaction with addition of a calcium containing compound and a water soluble iron salt; water treatment |
| 02/18/1997 | US5603844 Catalytic decomposition |
| 02/18/1997 | US5603843 Electrical water purification devices and methods |
| 02/18/1997 | US5603840 Method of achieving microbiological control in open recirculating cooling water |
| 02/18/1997 | US5603838 Process for removal of selenium and arsenic from aqueous streams |
| 02/18/1997 | US5603836 Method of using a diatomaceous earth containing adsorbent |
| 02/18/1997 | US5603811 Process for the treatment of an aqueous solution mainly containing nitric acid and hydrofluoric acid |
| 02/18/1997 | CA2089097C Removal of aox from bleach plant mill effluents by ph shift using the alkalinity/acidity sources available at the mill |
| 02/13/1997 | WO1997005338A1 Separator |
| 02/13/1997 | WO1997005149A1 Process for the preparation of n-phosphonomethyglycine |
| 02/13/1997 | WO1997005072A1 Biological water treatment plant for producing drinking water |
| 02/13/1997 | WO1997005069A1 Method for hydrothermal oxidation |