Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
06/2004
06/23/2004CN1507418A Organoboron waste stream treamtent using hydrogen peroxide
06/23/2004CN1507417A Water treatment method and water treatment equipment
06/23/2004CN1506638A 热水器 Water Heater
06/23/2004CN1506329A Treating process of underground water with high arsenic content
06/23/2004CN1506322A Integrated biological denitrifying reactor
06/23/2004CN1506320A Waste water circulating and reusing process for starch processing
06/23/2004CN1506319A Composite ClO2 generating process
06/23/2004CN1506318A Automatic rolling water purifying, oxygenating and distributing machine
06/23/2004CN1506317A Simplified sea water desalting and flushing system
06/23/2004CN1506316A Cabinet-type domestic waste water circulating and treating machine
06/23/2004CN1506315A Prepn of laminated dihydrogen oxide and its derivative quasi-periclase
06/23/2004CN1506314A Method and apparatus for separating solution and desalting sea water
06/23/2004CN1506313A Normal temperature distillator for desalting sea water
06/23/2004CN1506165A Method for producing gel cation exchanger
06/23/2004CN1506155A Photocatalytic method to titania with LED as light source
06/23/2004CN1506145A High-speed filtering machine using fiber filtering material
06/23/2004CN1506072A Lecithin-containing drinking water for children
06/23/2004CN1506069A Weixitie-containing drinking water for children
06/23/2004CN1506068A Calcium-containing drinking water for children
06/23/2004CN1154694C Aqueous dispersion of cationic polymer and its production and use
06/23/2004CN1154616C Method and installation for treating waste water frmo oil seed and cereal processing
06/23/2004CN1154615C Automatic controller for sewage treatment process
06/23/2004CN1154532C Deionization apparatus haivng non-sacrificial electrodes of different types
06/23/2004CN1154528C Improvement to solid-liquid separating equipment in particular for boilogical purification of waste water
06/22/2004US6753388 Structurally-modified polymer flocculants
06/22/2004US6753186 Water quality monitoring and transmission system and method
06/22/2004US6752971 Quartz sleeves; ultraviolet lamps; uniform fluid flow
06/22/2004US6752930 Chlorination apparatus and method
06/22/2004US6752923 Permanent magnetic liquid treating device
06/22/2004US6752921 Bioreactor tank internally chambered to sequentially perform biological treatment and membrane filtration
06/22/2004US6752849 Method for disinfecting and stabilizing organic wastes with mineral by-products
06/22/2004US6752848 Method for disinfecting and stabilizing organic wastes with mineral by-products
06/22/2004CA2259384C Methods and compositions for controlling biofouling using combinations of an ionene polymer and a salt of dodecylamine
06/22/2004CA2148449C Catalytic process
06/18/2004CA2452137A1 Water treatment system with low waste volume
06/17/2004WO2004050952A1 Method and device for preventing corrosion in an installation
06/17/2004WO2004050949A1 Method for phosphatizing metal surfaces with improved phosphate recovery
06/17/2004WO2004050584A1 Process for the treatment of pig manure and the use thereof
06/17/2004WO2004050566A2 Method for purifying waste water and corresponding waste water purification installation
06/17/2004WO2004050565A1 Aquarium-cleaning device utilizing formed charcoal
06/17/2004WO2004050564A1 Apparatus and method for performing tertiary treatment of sewage based on porous filtering media
06/17/2004WO2004050563A1 Reducing water and its producing method
06/17/2004WO2004050562A1 Apparatus and method for wastewater treatment by means of electroflotation and/or electrocoagulation
06/17/2004WO2004050561A1 Reactive filtration
06/17/2004WO2004050558A2 Rare earth compositions and structures for removing phosphates from water
06/17/2004WO2004050268A1 Apparatus for food waste treatment
06/17/2004WO2004050267A1 Organic industrial absorbent and production method thereof
06/17/2004WO2004050205A2 Means to miniaturize diffusion filters for particulate removal
06/17/2004WO2004049800A1 Magnetic microbicides
06/17/2004WO2004049787A2 Animal waste effluent treatment
06/17/2004WO2004022194A3 Treatment of spent caustic refinery effluents
06/17/2004WO2004020343B1 Pool filter with a pre-filtering unit
06/17/2004WO2004014808A9 Methods of treating waste slurry in animal waste lagoons
06/17/2004WO2004012838A3 Electrodionization method
06/17/2004US20040116273 For use in cartridge for a water cleaner or purifying unit ; engine casing ; brake disk exhaust pipe; disposal pipes; building material ; housing member; conveyor belt; heat accumulating material; soil conditioner; coating agent; bath tub; sheet
06/17/2004US20040115612 Monochromatic fluid treatment systems
06/17/2004US20040115120 Anerobic bacterial reduction of sulfur with hydrogen in liquid medium in presence of electron donor; mild, ambient conditions
06/17/2004US20040113293 Cyclic aeration system for submerged membrane modules
06/17/2004US20040113291 Diffusion driven desalination apparatus and process
06/17/2004US20040113288 Air aspirator-mixer
06/17/2004US20040113102 Method and device for operating a uv-radiation source
06/17/2004US20040112846 Filtration particles from fluid flow using meshes; rotating member,pumps; water pollution control
06/17/2004US20040112844 Air sparging; pump connected to tube; aeration
06/17/2004US20040112843 Water treatment product, delivery method and means of packaging
06/17/2004US20040112841 Applying ultrasonic frequency
06/17/2004US20040112840 Reducing odors, bacteria and oxygen; using tube, control box and pump
06/17/2004US20040112838 System and method for optimized control of multiple oxidizers
06/17/2004US20040112836 Oil and gas well fracturing (frac) water treatment process
06/17/2004US20040112831 immersed membrane in tank; connecting to air blower, valves and controllers; alternating air flow, uniform speed
06/17/2004US20040112829 Continous processing; automatic; aeration
06/17/2004US20040112828 Removal of water solubilized organics
06/17/2004US20040112826 Drinking element
06/17/2004US20040112824 High efficiency self-cleaning centrifuge
06/17/2004US20040112817 Magnetization device
06/17/2004US20040112814 Water purifying apparatus
06/17/2004US20040112813 Purifying device
06/17/2004US20040112812 Water heater
06/17/2004US20040112807 Filter cartridge with check valve protection
06/17/2004US20040112805 Extracting energy from non-potable water of a sewer process
06/17/2004US20040112804 Pneumatic flotation separation device
06/17/2004US20040112763 Method for surface treatment of processed copper workpiece
06/17/2004US20040112752 EDI device with resin seepage-proof inserts
06/17/2004US20040112559 Paper-making or non paper-making use of a starchy composition containing a selected cationic starchy material
06/17/2004US20040112408 Magnetically conductive conduit connected with nonmagnetic device
06/17/2004DE202004002159U1 Arrangement for raising the pH value in open acid bodies of water, e.g. in mining, comprises a tanker, receiving sinks, floating mobile storage units, pump and/or ventilator, a separate drive, and a distribution system
06/17/2004DE10300104A1 Emulsion splitting reactor for liquid industrial effluent and trade wastes has pump-powered whirlpool reactor discharging to a filter
06/17/2004DE10262036A1 Distribution unit for the permeate from a reverse osmosis membrane, for the supply of purest water to a dialysis apparatus, has a secondary ring channel at the primary channel, to prevent contamination
06/17/2004DE10256884A1 Verfahren zur Phosphatierung von Metalloberflächen mit verbesserter Phosphat-Rückgewinnung A process for phosphating metal surfaces with improved phosphate recovery
06/17/2004DE10256579A1 Ethylenediaminetetraacetic acid (EDTA) separation from waste water (especially from EDTA preparation) at low pH involves adsorption on activated carbon
06/17/2004DE10256085A1 Magnetische Mikrobizide Magnetic microbicides
06/17/2004DE10255457A1 UV-Desinfektionsvorrichtung UV disinfection device
06/17/2004DE10255064A1 Verfahren zum Behandeln von radioaktivem Abwasser A method of treating radioactive waste water
06/17/2004DE10254796A1 Environmentally friendly disposal of stripping gases involves collecting stripping gas in ventilation zone by adding gas containing oxygen and feeding it into fuel combustion engine as induction air
06/17/2004CA2507903A1 Reducing water and its producing method
06/17/2004CA2507388A1 Process for the treatment of pig manure and the use thereof
06/17/2004CA2507384A1 Aquarium-cleaning device utilizing formed charcoal
06/17/2004CA2506968A1 Animal waste effluent treatment
06/17/2004CA2414476A1 Treatment system for biopollution contained in industrial water
06/16/2004EP1428867A1 Multi-stage polymer compositions having a triggered response
06/16/2004EP1428800A1 Process and device for controlling and regulating a waste water treatment process