Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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01/13/1999 | EP0890382A1 Device to feed waste water to be purified into circular tanks |
01/13/1999 | EP0889854A1 Modified biomass for metal adsorption |
01/13/1999 | EP0889853A1 A method to solve the swelling sludge problem in waste treatment plants by controlling mycelium bacteria |
01/13/1999 | EP0889852A1 Gasification device |
01/13/1999 | CN2304072Y Health-care life boiler |
01/13/1999 | CN2303835Y Latticed horizontal-flow sedimentation tank |
01/13/1999 | CN2303834Y Water-purifying device |
01/13/1999 | CN1205001A Apparatus and method for water purification |
01/13/1999 | CN1204624A Technology for producing flocculant using ion-exchange resin regenerated waste water |
01/13/1999 | CN1204622A Treatment of waste water containing dye using activated carbon fiber adsorption process |
01/13/1999 | CN1041621C Sea floating oil gelatinizer |
01/12/1999 | US5858443 Process for effecting microbial control and reducing slime growth on hard surfaces in food processing equipment using inline ozonation |
01/12/1999 | US5858267 Method for treating chlorinated organic compound |
01/12/1999 | US5858251 Subjected to centrifugal forces, protozoan parasites such as cryptosporidium and giardia from contaminated water |
01/12/1999 | US5858249 Iron anode, ferric arsenate |
01/12/1999 | US5858248 On premise water treatment method for use in a post-mix beverage dispenser |
01/12/1999 | US5858246 Method of water purification with oxides of chlorine |
01/12/1999 | US5858243 Use of crystalline intergrowth molecular sieves for removing contaminant metal ions from liquid streams |
01/12/1999 | US5858242 Heavy metal cation recovering agent including a silicate or aluminosilicate type compound and a carbonate type compound |
01/12/1999 | US5858222 Aeration tank for mixing aqueous organic waste with activated sludge, modification unit to kill the bacteria in part of the sludge, making it biodegradable for recirculation; reduces excess sludge, improves sedimentation |
01/12/1999 | US5858219 Cooling tower water treatment system |
01/12/1999 | US5858215 Water filter containing faucet and display therefor |
01/12/1999 | US5858203 Transferring contamination from a substantially solid phase of the slurry to a substantially liquid phase of the slurry |
01/12/1999 | US5858202 Electrolyzer including an anode and cathode and a separating membrane |
01/12/1999 | US5858201 Strong acid sterilizing liquid containing hypochlorous acid at a low concentration, method and apparatus for generating same, and apparatus for generating and dispensing same |
01/12/1999 | US5858199 Apparatus and method for electrocoriolysis the separation of ionic substances from liquids by electromigration and coriolis force |
01/12/1999 | US5858191 Alternating layers of anion and cation exchange resins are positioned in an ion depleting compartment |
01/12/1999 | US5858071 Used for separating radon from radon contaminated water |
01/12/1999 | US5857344 Atmospheric water extractor and method |
01/12/1999 | CA2104692C Purification of waste streams |
01/12/1999 | CA2101578C Paper mill waste deodorant containing undecylenic acid ester |
01/12/1999 | CA2090757C Programmable water treatment controller for progressive flow systems |
01/12/1999 | CA2067148C Calcium hypochlorite compositions for inhibiting scale formation and a method for their use |
01/07/1999 | WO1999000331A1 Single orifice bottle water filter |
01/07/1999 | WO1999000330A1 Desalination through methane hydrate |
01/07/1999 | WO1999000178A1 Electrochemical methods for recovery of ascorbic acid |
01/07/1999 | EP0889009A1 Process for removing heavy metal ions |
01/07/1999 | EP0889007A1 Reducing electrolytic water and method for preparing the same |
01/07/1999 | EP0888810A1 Composite reverse osmosis membrane and method of reverse osmotic treatment of water using the same |
01/07/1999 | EP0888256A1 Process and device for sewage treatment |
01/07/1999 | EP0888252A1 Substances and method for the production of water suitable for aquariums or garden ponds |
01/07/1999 | EP0888251A1 Compositions and methods for reducing deposit formation on surfaces |
01/07/1999 | EP0888250A1 Water treatment method |
01/07/1999 | EP0888249A1 Water clarifying compositions |
01/07/1999 | EP0888248A1 Ballast water de-toxification treatment system for ships |
01/07/1999 | EP0888247A1 Water treatment device with drinking water filter, regeneration device and process for treatment of drinking water |
01/07/1999 | EP0888246A1 Flotation apparatus and process |
01/07/1999 | EP0888178A1 Sorbents for removing toxicants from blood or plasma, and method of producing same |
01/07/1999 | EP0888153A1 Method for hot and supercritical water oxidation of material using specific reactants |
01/07/1999 | EP0843649A4 Improved method of treating water |
01/07/1999 | EP0809608B1 Combined chemical and biological water treatment process |
01/07/1999 | EP0796228B1 Method of catalytically treating waste water containing organic and inorganic compounds |
01/07/1999 | EP0777526B1 Filter material and process for removing ozone from gases and liquids |
01/07/1999 | EP0739312B1 Bottle water disinfection system |
01/07/1999 | EP0634364B1 Pure water manufacturing method |
01/07/1999 | DE19827623A1 Water vessel for e.g. drinks machine, comprises filter cartridge |
01/07/1999 | DE19728833A1 Verfahren zur Beseitigung von Oberflächengewässer verschmutzenden organischen Flüssigkeiten A method for removing surface water polluting organic liquids |
01/07/1999 | DE19728414A1 Process to capture water leaching from refuse tip, and recover clean water by filtration |
01/07/1999 | DE19727363A1 Composition for adsorbing organic liquid |
01/07/1999 | CA2293601A1 Electrochemical methods for recovery of ascorbic acid |
01/07/1999 | CA2210385A1 Use of cationic polyelectrolytes and surfactants in the deinking of wastepaper |
01/06/1999 | CN2302992Y Fluid magnetization equipment |
01/06/1999 | CN2302991Y Multi-function comprehensive water treatment equipment |
01/06/1999 | CN1204303A Water desalination |
01/06/1999 | CN1204301A Synthetic mineral microparticles and retention aid and water treatment system and method using such particles |
01/06/1999 | CN1203904A Dilute acid oxidation of dinitrotoluene alkaline wash water |
01/06/1999 | CN1203889A Utility of water-soluble polymers having pendant derivatized amide functionalities for scale control |
01/06/1999 | CN1203888A Aerated pure water |
01/06/1999 | CN1041538C Method for treating pickle waste liquor |
01/05/1999 | US5856429 Piperazine containing polyamide |
01/05/1999 | US5855899 Biocide and an inorganic carrier that is a porous sio2/tio2 sol-gel matrix |
01/05/1999 | US5855861 Reacting hydroxycarboxylic acid with alkali metal chlorite |
01/05/1999 | US5855797 Remediation of soil contaminated with organic compounds |
01/05/1999 | US5855796 Water discharging control device and method for water purifier tank |
01/05/1999 | US5855795 Methods and apparatus for sterilizing purified water stored in a water purifier |
01/05/1999 | US5855793 Method of treating waste water to remove harmful ion by coagulating sedimentation |
01/05/1999 | US5855791 Performance-based control system |
01/05/1999 | US5855790 Magnetic core overcoated with fibers in binder |
01/05/1999 | US5855789 N-alkylated polyvinylpyridine adsorbent |
01/05/1999 | US5855787 Removing inks from printing plate |
01/05/1999 | US5855779 Apparatus for mounting a cover plate to a water purifier |
01/05/1999 | US5855777 Multi-chamber water purification device and method of using the same |
01/05/1999 | US5855774 Storm drain filter |
01/05/1999 | US5855763 Electrochemical oxidation of matter |
01/05/1999 | US5855760 Process for electrochemical decomposition of organic pollutants |
01/05/1999 | CA2061876C Membraneless chlorine gas generating apparatus |
12/30/1998 | WO1998059385A1 Lithium recovery and purification |
12/30/1998 | WO1998058880A1 Method and apparatus for the electrochemical treatment of water and aqueous salt solutions |
12/30/1998 | WO1998058727A1 Fluid purification devices and methods employing deionization followed by ionization followed by deionization |
12/30/1998 | EP0887315A2 Method and device for physical treating water |
12/30/1998 | EP0887314A2 Waste water ozonization process and apparatus |
12/30/1998 | EP0887313A1 Sewage treatment |
12/30/1998 | EP0886664A1 Flocculating or viscosifying compositions and their production and use |
12/30/1998 | EP0886630A1 Method of rotting compostable material |
12/30/1998 | EP0886625A1 Flocculant compositions and water treatment method using the same |
12/30/1998 | EP0886599A1 Off-shore sewage treating and handling apparatus and method |
12/30/1998 | EP0871592A4 Chloroisocyanuric acid composition having reduced gas evolution |
12/30/1998 | EP0866773A4 Cartridge for photocatalytic purification of fluids |
12/30/1998 | EP0603272B1 Apparatus for monitoring liquids |
12/30/1998 | CN2302247Y Full-automatic ultra-filtering sterile water drinking machine |