| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
|---|
| 02/22/1990 | DE3828026A1 Device for the hygienic processing of liquids |
| 02/22/1990 | DE3826857A1 Drinking water filter unit |
| 02/21/1990 | CN2053212U Magnetizer of water used for mixing and sintering iron ore powder |
| 02/21/1990 | CN2053096U Multipurpose miniature disinfectant generator |
| 02/21/1990 | CN1006841B Preparation of a mineral beverage by immersing a bag of china medical stone |
| 02/20/1990 | US4902779 Waste water treatment |
| 02/20/1990 | US4902432 Treating method of preventing putrefaction and emission of rancidity of water-contained cutting or grinding oil and treating bag member for use in the same |
| 02/20/1990 | US4902431 Method for treating wastewater sludge |
| 02/20/1990 | US4902429 Gas assisted flotation process |
| 02/20/1990 | US4902427 Filter for removing heavy metals from drinking water |
| 02/20/1990 | US4902411 Drinking water purifier |
| 02/20/1990 | US4902391 Method and device for ionizing fluid |
| 02/20/1990 | US4902390 A protected, two wire system with an electrostatic field generator; ability to moderate bacterial growth |
| 02/15/1990 | DE3827317A1 Apparatus for reversing the polarity of the biological radiation of liquids |
| 02/15/1990 | DE3826896A1 Use of ion-exchanging mineral mixtures for sterilising aqueous liquid phases |
| 02/14/1990 | EP0354664A1 Catalystic water treatmentwith ozone |
| 02/14/1990 | EP0354656A1 Process for the catalytic treatment of wastewater |
| 02/14/1990 | EP0354401A1 Precipitant, especially for phosphate removal from waste waters |
| 02/14/1990 | EP0354349A1 Mobile device for the treatment of polluted waters, especially pit waters |
| 02/14/1990 | EP0354215A1 System for treating water by chlorination |
| 02/14/1990 | CN2052766U Multi-function sterilizer for drink water in journey |
| 02/14/1990 | CN2052636U Tourist kettle lid with mineralization device |
| 02/14/1990 | CN1039570A Electrolyser for sewage purification |
| 02/14/1990 | CN1039569A Regeneration process of ion exchange resin by co2 desalting partially |
| 02/14/1990 | CN1039520A Oxygen supplying and water clarifying agent for aquatic culture |
| 02/13/1990 | US4900481 Ozonic bubble water generator |
| 02/13/1990 | US4900450 Removing residual alkali metal ions from demineralized water |
| 02/13/1990 | US4900336 Method of preferentially removing oxygen from ozonated water |
| 02/08/1990 | WO1990001077A1 Electrolytic precipitation process for recovery of metals |
| 02/08/1990 | WO1990001019A1 Apparatus and process for purification of surface waters |
| 02/08/1990 | WO1990001018A1 Water conditioning device |
| 02/08/1990 | WO1990001017A1 Use of ether sulphates for removing quaternary ammonium compounds from waste water |
| 02/08/1990 | DE3826794A1 Process and apparatus for adding flocculation aids to a reaction vessel |
| 02/08/1990 | DE3826147A1 Process for treating waste water |
| 02/07/1990 | EP0353314A1 Process and installation for the purification of waste water containing emulsified fat, and discharging device |
| 02/07/1990 | CN2052407U Liquid preventing-scale device by electric-magnetic |
| 02/07/1990 | CN1039401A Treatment method of chrome waste water and its one step processing equipment |
| 02/07/1990 | CN1039400A Making method used in oil field for flocculated-etching-retarding agent |
| 02/07/1990 | CN1039399A Technology and equipment of high gradient separated treatment drinking water |
| 02/07/1990 | CN1039398A Sterilizing method used in water containing fungi |
| 02/06/1990 | US4899057 Sanitary device |
| 02/06/1990 | US4899056 Method of disinfecting waste water |
| 02/06/1990 | US4898975 Water soluble organic ammonium per halides |
| 02/06/1990 | US4898963 Treatment with water-soluble organic amines in organic solvents |
| 02/06/1990 | US4898827 Metal recovery |
| 02/06/1990 | US4898679 Method and apparatus for obtaining ozone saturated water |
| 02/06/1990 | US4898678 Multicompartment tanks for deleading purification; dual water flow |
| 02/06/1990 | US4898676 Bacteriostatic activated carbon filter |
| 02/06/1990 | US4898667 Point-of-use membrane filtration system |
| 02/06/1990 | CA1265471A1 Electrode with reversible polarity |
| 02/06/1990 | CA1265412A1 Insoluble compositions for removing mercury from a liquid medium |
| 02/01/1990 | DE3825319A1 Process and apparatus for the separation and selective degradation of ionic and nonionic constituents from aqueous and nonaqueous solutions |
| 02/01/1990 | DE3823459C1 Throughflow body |
| 01/31/1990 | EP0353172A2 Erodible iodine-containing polymer composition |
| 01/31/1990 | EP0353095A2 A preventive method against apposition of a marine organism and a preventive sheet against apposition of a marine organism |
| 01/31/1990 | EP0352891A1 Process for treatment of water containing volatile and toxic compounds |
| 01/31/1990 | EP0352779A2 Mobile potable water production device |
| 01/31/1990 | EP0352390A1 Apparatus for the treatment of industrial sludge |
| 01/31/1990 | CN2051844U Magnetization kettle |
| 01/31/1990 | CN1006602B Process for desulfurization of flue gases |
| 01/30/1990 | US4897246 Oxidation chamber |
| 01/30/1990 | US4897206 Bidirectionally corrugated plate separator for fluid mixtures |
| 01/30/1990 | US4897203 Process and apparatus for recovery and recycling conveyor lubricants |
| 01/30/1990 | US4897202 Continuous suction, circulation, reuse of treated aqueous detergent solution |
| 01/30/1990 | US4897199 Adsorption on an inorganic substrate; combustion to carbon dioxide and water |
| 01/30/1990 | US4897187 Portable water filtration apparatus |
| 01/30/1990 | US4897099 Ice maker and water purifier |
| 01/30/1990 | CA1265267A1 Fluid clarifying assembly |
| 01/30/1990 | CA1265266A1 Method and apparatus for biological aerobic wastewater treatment |
| 01/30/1990 | CA1265094A1 Electrostatic field generator for liquid treatment |
| 01/25/1990 | WO1990000527A1 Apparatus for treating a fluid |
| 01/25/1990 | WO1990000526A1 Disagglomerated water and methods for producing same |
| 01/25/1990 | WO1990000525A1 Arrangement and process for purifying waste water |
| 01/25/1990 | DE3923585A1 Combining filter for mains water - with electrolytic treatment preventing lime deposits inside household equipment |
| 01/25/1990 | DE3838794A1 Magnetisch aktiver, poroeser koerper und verfahren zu seiner herstellung Magnetically active, porous body and process for its preparation |
| 01/25/1990 | DE3835468C1 Process and apparatus for liquid manure treatment |
| 01/24/1990 | EP0352219A2 Pretreatment of industrial waste water in a biological purification process |
| 01/24/1990 | EP0352213A1 Liquid conditioning element |
| 01/24/1990 | EP0352129A1 Organic sewage treatment process using polyvinyl pyridine |
| 01/24/1990 | EP0352096A2 Compositions to encapsulate chromium, arsenic, and other toxic metals in wastes |
| 01/24/1990 | EP0351922A1 A process and an apparatus for treatment of manure, in particular liquid manure |
| 01/24/1990 | EP0351688A1 Use of ether sulfates in the removal of quarternary ammonium compounds from waste water |
| 01/24/1990 | EP0351518A2 Appliance of irradiating fluids with UV light |
| 01/24/1990 | EP0277125B1 Process for removing volatile contents from waste liquids produced in coking plants |
| 01/24/1990 | CN2051630U 人造天然矿泉水龙头 Artificial natural mineral water faucet |
| 01/24/1990 | CN2051629U Oil/water separating device |
| 01/24/1990 | CN1039007A Improved apparatus for thickening by flotation of sluries produced during treatment of waters |
| 01/24/1990 | CN1039006A Mehtod for purification of waste water |
| 01/24/1990 | CN1039005A Medium temperature hydrolysis reactor |
| 01/24/1990 | CN1039004A Sewage treatment equipment |
| 01/24/1990 | CN1038943A Equipment for recovering and concentrating oil in water |
| 01/23/1990 | US4895905 Gel-type chelating resins and a process for removal of multi-valent, alkaline earth or heavy metal cations from solutions |
| 01/23/1990 | US4895665 Method for treating and reclaiming oil and gas well working fluids and drilling pits |
| 01/23/1990 | US4895662 Purification of effluent from wood pulp bleach plant |
| 01/23/1990 | US4895651 Personal, portable, disposable tap water filter |
| 01/23/1990 | US4895649 Apparatus for processing coolant |
| 01/23/1990 | US4895648 Filter cover for a purification insert in a water treatment device with a hollow tube |
| 01/23/1990 | CA1264678A1 Portable water purification system |
| 01/18/1990 | DE3921805A1 Composition for fertilisation, soil improvement and protection of waterways |
| 01/18/1990 | DE3823957A1 Process for separating off heavy metal ions from aqueous solutions |