| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
|---|
| 05/19/1993 | CN2133221Y Sterilized filtering cup |
| 05/19/1993 | CN2133220Y Temp.-adjusting magnetizing mineralizing kettle |
| 05/19/1993 | CN2133187Y Magnetic ring for bottle |
| 05/19/1993 | CN1072157A Method for coagulant produced with diaspore ore |
| 05/19/1993 | CN1072156A Waste water treatment method for asbestos |
| 05/19/1993 | CN1020713C Production method of double layers sterilized pill for personal drinking water |
| 05/18/1993 | US5211973 Water treatment apparatus |
| 05/18/1993 | US5211872 Dechlorinator, polyamine, acid |
| 05/18/1993 | US5211871 Dissolving aluminum by mixing silicates in the water for potability |
| 05/18/1993 | US5211855 Oxidizers for killing bacteria, viruses and algae |
| 05/18/1993 | US5211853 Method for the removal of chromium compounds from aqueous solutions |
| 05/18/1993 | US5211852 Process for removal of metal ions from water |
| 05/18/1993 | US5211851 Purification |
| 05/18/1993 | US5211843 Mobile apparatus for environmentally treating spent etchant safely |
| 05/18/1993 | US5211823 Passing water flow over resin in multicompartment apparatus and applying electrical voltage |
| 05/18/1993 | US5211812 Device for the recovery of a processed liquid in the form of a condensate on a liquid to be processed |
| 05/18/1993 | US5211724 Pollution control |
| 05/18/1993 | US5211475 Apparatus for dissolving particulate solids in liquids |
| 05/13/1993 | WO1993009217A1 Wash waste liquid regenerating method, wash waste liquid regenerating apparatus, washing method and washing apparatus |
| 05/13/1993 | WO1993009064A1 Flocculation process |
| 05/13/1993 | WO1993008936A1 Method and device for removing one or more contaminations from a bulk material |
| 05/13/1993 | WO1993008931A2 System for supplying ultrapure water and method of washing substrate, and system for producing ultrapure water and method of producing ultrapure water |
| 05/13/1993 | WO1993008892A1 Improvements in or relating to separators |
| 05/13/1993 | WO1993008891A1 Method and apparatus for removing salt from sea water |
| 05/13/1993 | DE4136949A1 Photoactive purificn. of water contg. organic impurities - by passing thin film of water over UV light source which contains wavelengths suitable for formation of ozone molecules and hydroxyl radical |
| 05/13/1993 | DE4136616A1 Ausflockung Flocculation |
| 05/13/1993 | CA2121335A1 Improvements in or relating to separators |
| 05/13/1993 | CA2082541A1 Glutaraldehyde plus dithiocarbamates for controlling microorganisms in paper mills |
| 05/12/1993 | EP0541358A1 Absorption of materials |
| 05/12/1993 | EP0541317A1 A method of scavenging oxygen from boiler waters with substituted quinolines |
| 05/12/1993 | EP0541231A1 A layered cementitious composition which time releases permanganate ion |
| 05/12/1993 | EP0541114A2 The process to recover salt from brine waste water |
| 05/12/1993 | EP0541076A2 Cooling water ozonation system |
| 05/12/1993 | EP0540972A1 Process for oxidizing organic materials with hydrogen peroxide under conditions of irradiation in aqueous phase |
| 05/12/1993 | EP0540772A1 Product for exterminating Legionella |
| 05/12/1993 | EP0407495B1 A device for irradiating flowing liquids and/or gases with ultraviolet light |
| 05/12/1993 | CN2133011Y Water level automatic controller for majorizating water quality |
| 05/12/1993 | CN2132884Y Faucet having water magnetizing function |
| 05/12/1993 | CN2132743Y Miniature sewage disposal device with filter bed |
| 05/12/1993 | CN2132741Y Magnetizer for drink water |
| 05/12/1993 | CN2132740Y Water running device for water treatment apparatus for household |
| 05/12/1993 | CN2132463Y Hanging mag-mining healthy utensil |
| 05/12/1993 | CN1071897A Method for pretreating feed water by reverse osmosis |
| 05/12/1993 | CN1071896A Deoxidant and its preparing process |
| 05/12/1993 | CN1071824A Magnetizing kettle |
| 05/12/1993 | CN1020581C Apparatus for thickening by flotation of slurries produced during treatment of waters |
| 05/11/1993 | US5210324 Making polyalkyleneoxy allyl ethers by dissolving alcohol in solvent capable of forming azeotrope with water, azeotroping mixture to remove water, adding alkali metal alkoxide, removing alkanol, reacting alcoholate with allyl halide |
| 05/11/1993 | US5210216 Calixarene and oxacalixarene derivatives and use thereof of sequestration metals |
| 05/11/1993 | US5210009 System for recovering silver from a photographic developer solution |
| 05/11/1993 | US5209934 Zebra mussel control chemical |
| 05/11/1993 | US5209854 Pulp waste color removal with diallyl dimethyl ammonium chloride copolymers |
| 05/11/1993 | US5209843 Process and apparatus for waste water treatment |
| 05/11/1993 | US5209824 Reducing slime |
| 05/11/1993 | US5208923 Swimming pool water flow system |
| 05/11/1993 | CA1317553C Paint waste separater-collector apparatus |
| 05/11/1993 | CA1317551C Method for cleaning oil-contaminated water in a bathing or swimming area |
| 05/09/1993 | WO1993008686A1 Molluscicidal water distribution system components |
| 05/09/1993 | CA2097831A1 Molluscicidal water distribution system components |
| 05/07/1993 | CA2082234A1 Method of scavenging oxygen from boiler waters with substituted quinolines |
| 05/06/1993 | DE4135637A1 Device for determining degree of exhaustion of filter esp. in drinks machines - in which display unit has three openings and two discs which can be moved to select hardness and rate of consumption and display filter renewal date |
| 05/06/1993 | DE3745002C2 Electric steam, spray and dry iron |
| 05/06/1993 | CA2082122A1 Cooling water ozonation system |
| 05/05/1993 | EP0540485A1 Device for purifying water |
| 05/05/1993 | EP0540179A2 Electrolytic pool purifier |
| 05/05/1993 | EP0539624A1 Contactor for use in an apparatus for treatment of organic waste water |
| 05/05/1993 | EP0539430A1 Bioreactor. |
| 05/05/1993 | EP0532494A4 Improved water clarifying apparatus |
| 05/05/1993 | CN2131857Y Scale remover with magnetic field |
| 05/05/1993 | CN2131856Y Magnetic chinese medicine stone drinking water processing device |
| 05/05/1993 | CN2131855Y Fluorine removing device for drinking water |
| 05/05/1993 | CN2131420Y Suspended ballonet gas injection magnetic water discharging device |
| 05/05/1993 | CN2131415Y Magnetic mineral water thermos bottle |
| 05/05/1993 | CN2131398Y Craft type seperating multi-purpose magnetic basement |
| 05/05/1993 | CN2131391Y Changable magnetic mineral water cup |
| 05/05/1993 | CN1071647A Raw water pre-treating process in pure water preparation by means of ion-exchange |
| 05/04/1993 | US5208461 Ultra-violet wastewater disinfection system |
| 05/04/1993 | US5207993 Batch liquid purifier |
| 05/04/1993 | US5207927 Catalytic oxidation using metal phthalocyanine; sulfation; water pollution control |
| 05/04/1993 | US5207925 Process for the detoxification of cyanide-containing aqueous solutions |
| 05/04/1993 | US5207924 Diallyl dimethyl ammonium chloride copolymers in deinking process water clarification |
| 05/04/1993 | US5207923 Automotive parts cleaning |
| 05/04/1993 | US5207921 Removal of fats, oils and greases; monitoring pH and turbidity; air sparging, skimming, filtration, and exposure to ultravoilet radiation |
| 05/04/1993 | US5207920 Centrifugal flotation separator |
| 05/04/1993 | US5207917 Recycling and recovery of aqueous cleaner solutions |
| 05/04/1993 | US5207910 Combined filtration and fixation of heavy metals |
| 05/04/1993 | US5207896 Wastewater treatment mechanism |
| 05/04/1993 | US5207877 Methods for purification of air |
| 05/04/1993 | US5207875 Seawater pre-deaerator process for open-cycle ocean thermal energy conversion applications |
| 05/04/1993 | US5207869 Evaporative reduction of waste liquid |
| 05/04/1993 | US5207761 Refrigerator/water purifier with common evaporator |
| 04/29/1993 | WO1993008219A1 Improved process for removing organic polymer impurities from aqueous phases |
| 04/29/1993 | WO1993008129A1 Chemical oxidative process for purifying highly contaminated waste water |
| 04/29/1993 | WO1993008127A1 Fluid treatment apparatus |
| 04/29/1993 | WO1993007966A1 Rotary flow control valve |
| 04/29/1993 | WO1993007964A1 Photochemical reactor chamber design and lamp configuration |
| 04/29/1993 | WO1993007956A1 Process for removing arsenic from water |
| 04/29/1993 | WO1993007949A1 Central feed device for sewage-treatment circular basins |
| 04/29/1993 | WO1993004595A3 Method, composition and device for the treatment of raw materials, products and production means, in particular in the foodstuffs industry |
| 04/28/1993 | EP0539171A2 Method for monitoring fouling in commercial waters |
| 04/28/1993 | EP0539069A2 Faucet with microbial filter |