| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 11/11/1999 | WO1999057067A2 Method for cleaning waste water from the production of agar-agar |
| 11/11/1999 | WO1999057066A1 Method for the intensive desalination of water containing non-dissolved silicon |
| 11/11/1999 | WO1999057065A1 Electrochemical device for purifying water |
| 11/11/1999 | WO1999057064A1 Water quality improving apparatus and water quality improving system |
| 11/11/1999 | WO1999057063A2 Method for removing nitrate ions from a solution |
| 11/11/1999 | WO1999057062A2 Method and installation for eliminating phosphate from liquids, especially waste water, flowing water or the like |
| 11/11/1999 | WO1999056867A2 Integrated fixation systems |
| 11/11/1999 | WO1999056861A1 Device for introducing gas into liquids |
| 11/11/1999 | WO1999056860A1 Device for obtaining a desalinated solution |
| 11/11/1999 | WO1999056850A1 Chelate-forming filter, process for producing the same, and method of purifying liquid with the filter |
| 11/11/1999 | WO1999048901A3 Sucrose-n-alkyl-asparaginates, production and use thereof |
| 11/11/1999 | WO1999043791A9 Diisopropyl fluorophosphatase and the utilization and production thereof |
| 11/11/1999 | WO1999040031A3 Water purification apparatus |
| 11/11/1999 | DE19912013A1 Vorrichtung zum Reinigen von Wasser An apparatus for purifying water |
| 11/11/1999 | DE19835592A1 Waste liquor treatment with Fenton reagent, useful for highly concentrated waste liquor purification |
| 11/11/1999 | DE19820320A1 Raising the pH of high sulfate- and high Fe-content open-cast working waste ponds |
| 11/11/1999 | DE19819281A1 Verfahren zur Reinigung von Abwässern aus der Agar-Agar Produktion A process for purifying waste water from the agar-agar production |
| 11/11/1999 | DE19819098A1 Wasserreinigungsvorrichtung mit Mitteln zur Anzeige der Erschöpfung des Reinigungsmittels Water treatment device comprising means for displaying the exhaustion of the cleaning agent |
| 11/11/1999 | DE19818094A1 Ultrafiltration membrane assembly for industrial water effluent |
| 11/11/1999 | DE19810976A1 Verfahren und Vorrichtung zum Reinigen von industriellem Abwasser aus Druckereien Method and apparatus for cleaning of industrial waste water from printing |
| 11/11/1999 | CA2330495A1 Method for treating fluid liquid containing a volatile fraction |
| 11/10/1999 | EP0955356A1 Carrier composition of a sustained released active agent |
| 11/10/1999 | EP0955270A1 A method of disposing of effluents containing formaldehyde or formaldehyde precursors such as hexamine |
| 11/10/1999 | EP0955268A2 Water treatment device with means for indicating the depletion of the purifying agent |
| 11/10/1999 | EP0954379A2 Apparatus and method for induced air flotation |
| 11/10/1999 | EP0921823A4 Uv water disinfector |
| 11/10/1999 | EP0809607A4 Self flocculating separation medium and method |
| 11/10/1999 | CN2348314Y Constant-voltage magnetizer for water heater |
| 11/10/1999 | CN2348187Y 净水龙头 Net faucet |
| 11/10/1999 | CN2348186Y Dual-purpose water purifying tap |
| 11/10/1999 | CN2347969Y Drinking water purifier |
| 11/10/1999 | CN2347968Y Multi-functional efficient water deep purifier |
| 11/10/1999 | CN2347967Y Multi-functional high-frequency electronic descaler |
| 11/10/1999 | CN2347964Y Straight-through anodization water treatment installation |
| 11/10/1999 | CN2347963Y Spring clip type magnetic modulator |
| 11/10/1999 | CN2347962Y Rust-proof and antiscale water magnetizer |
| 11/10/1999 | CN2347961Y Ion water generator |
| 11/10/1999 | CN2347960Y Device for treatment of sewage |
| 11/10/1999 | CN2347959Y 连续式除氧器 Continuous deaerator |
| 11/10/1999 | CN2347958Y Portable water purifier |
| 11/10/1999 | CN2347508Y Electronic glass |
| 11/10/1999 | CN1234783A Aeration tank of organic waste liquor and aeration apparatus using the tank |
| 11/10/1999 | CN1234464A Dry powder pepared by paper-making black liquor, preparation method and use in treating pollution |
| 11/10/1999 | CN1234373A Method for treatment of waste liquid from production process of trimethyl phosphite, dimethyl phosphite and phosphates and other waste liquids containing nitrogen |
| 11/10/1999 | CN1234372A Method for treatment of waste liquid containing phosphorous ions |
| 11/10/1999 | CN1234371A Method for production of life water for prolonging life and product thereof |
| 11/10/1999 | CN1046207C Process for preparing germ-destroying material, germ-free air and fresh-preserved foods, and containers therefor |
| 11/09/1999 | US5981435 Methods for controlling algae |
| 11/09/1999 | US5981426 Photocatalyst having an x-ray diffraction pattern which is substanially free of characteristic reflections associated with crystalline TiO2 |
| 11/09/1999 | US5981289 Hydrogen sulfide analyzer |
| 11/09/1999 | US5981283 Method of tagging hydrocarbon fuels |
| 11/09/1999 | US5980987 Method of making a composition for separating and concentrating certain ions from mixed ion solutions |
| 11/09/1999 | US5980850 Recoverying hydrofluoric acid, hydrochloric acid, nitric acid, or a mixture of these acids from waste pickling liquor by pre-concentrating, heat exchanging, pyrohydrolysis, separating from the metals and absorption, condensation |
| 11/09/1999 | US5980827 Passing air containing airborne microorganisms through air path means and disinfecting air in said path means by passing air over demand disinfectant resin such that airborne microorganisms contact said resin and are devitalized thereby, |
| 11/09/1999 | US5980758 Method and composition for inhibiting growth of microorganisms including peracetic acid and a non-oxidizing biocide |
| 11/09/1999 | US5980753 Process for recovering volatile acids |
| 11/09/1999 | US5980752 Water purification system for hot tubs and the like |
| 11/09/1999 | US5980751 Air lift pump for membrane separation unit |
| 11/09/1999 | US5980749 Inclusion methods for purifying a solvent |
| 11/09/1999 | US5980743 Filter means with fabric insert |
| 11/09/1999 | US5980736 Apparatus and process for processing rain and/or surface water |
| 11/09/1999 | US5980727 Method and equipment for removing organic halogen compounds from water |
| 11/09/1999 | US5980718 Providing each pair of electrodes with electrical means which protect intire capacitive system from shutting down if a single pair of electrodes is shorted |
| 11/09/1999 | US5980716 For purification of water by continuously removing dissolved carbon dioxide, iron oxides; for low conductivity watercooling of fuel cells |
| 11/09/1999 | US5980703 Electrolytic cell for producing acidic water and alkaline water |
| 11/09/1999 | US5980701 Maintaing non-oxidative, low pressure atmosphere in vessel containing hazardous waste comprising carbon containing compounds; applying electric potential to electrodes to create corona discharge to alter compound |
| 11/09/1999 | US5980697 Component separation system including condensing mechanism |
| 11/09/1999 | US5980694 Apparatus for the purification of water contaminated with oil |
| 11/09/1999 | US5980644 Method of cleaning of spills of oil and oil products from surfaces, an adsorbent for cleaning of surfaces, and a method for making the adsorbent |
| 11/09/1999 | US5979478 Apparatus and method for treating water in a water supply system |
| 11/09/1999 | US5979012 Mobile apparatus for dispensing and recovering water and removing waste therefrom |
| 11/09/1999 | CA2087976C Process for producing magnetically responsive polymer particles and application thereof |
| 11/04/1999 | WO1999056287A1 Method for treating radioactive waste |
| 11/04/1999 | WO1999056286A2 Method for reducing the level of radioactivity of a metal part |
| 11/04/1999 | WO1999055810A1 Process for de-chlorinating and de-fouling oil |
| 11/04/1999 | WO1999055804A1 Gasification method |
| 11/04/1999 | WO1999055627A1 Stable oxidizing bromine formulations, methods of manufacture thereof and methods of use for microbiofouling control |
| 11/04/1999 | WO1999055626A1 Material for introducing physiologically-essential inorganic elements into drinkable water |
| 11/04/1999 | WO1999055625A1 Use of polymer dispersions for paper mill color removal |
| 11/04/1999 | WO1999055624A1 Physical liquid treatment device |
| 11/04/1999 | WO1999055623A1 Electrochemical treatment of materials |
| 11/04/1999 | WO1999055622A1 Apparatus and process for removing strong oxidizing agents from liquids |
| 11/04/1999 | WO1999055450A1 Oxygenating apparatus, method for oxygenating a liquid therewith, and applications thereof |
| 11/04/1999 | WO1999055448A1 Automatic cleaning system for a reverse osmosis unit in a high purity water treatment system |
| 11/04/1999 | WO1999055389A1 Generation of active chlorine in the presence of an organic load from sodium chloride in water |
| 11/04/1999 | DE19819303A1 Verfahren zur Anlage zur Eliminierung von Phosphat aus Flüssigkeiten, insbesondere Abwässern, fließenden Gewässern o. dgl. Process for the plant for elimination of phosphate from liquids, especially sewage flowing waters o. The like. |
| 11/04/1999 | DE19818772A1 Verfahren zum Abbau der Radioaktivität eines Metallteiles Method for reducing the radioactivity of a metal part |
| 11/04/1999 | CA2330616A1 Generation of active chlorine in the presence of an organic load from sodium chloride in water |
| 11/04/1999 | CA2330130A1 Use of polymer dispersions for paper mill color removal |
| 11/04/1999 | CA2329896A1 Stable oxidizing bromine formulations, methods of manufacture thereof and methods of use for microbiofouling control |
| 11/03/1999 | EP0953546A2 Method for decomposing nitroaromatic compounds in waste waters |
| 11/03/1999 | EP0953014A1 Aqueous dispersion of high intrinsic viscosity polymer and its production and use |
| 11/03/1999 | EP0953013A1 Aqueous dispersion of cationic polymer and its production and use |
| 11/03/1999 | EP0952964A1 Aqueous dispersions |
| 11/03/1999 | EP0952963A1 Method of water purification with oxides of chlorine |
| 11/03/1999 | EP0952958A2 Devices and methods for producing and using ozone |
| 11/03/1999 | EP0952776A1 Micronutrient supplement |
| 11/03/1999 | EP0820344B1 Method for operating and controlling a bank of filtration membrane modules, and bank of modules therefor |
| 11/03/1999 | EP0777631B1 Plant and process for achieving structured waters of the "i" type-inhibitively activated and "s" type-stimulatively activated |
| 11/03/1999 | EP0703828B1 Process and device for separating suspended substances from fluids |