Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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08/19/1998 | CN2288178Y Super efficient water purifier |
08/19/1998 | CN2288177Y Submerged filter |
08/19/1998 | CN2288175Y Water purifying health box |
08/19/1998 | CN2288174Y Treater for domestic sewage |
08/19/1998 | CN2287993Y Shift type automatic contamination draining water purifier |
08/19/1998 | CN2287796Y Ultraviolet sterilizing lamp device |
08/19/1998 | CN1190948A Electrochemical cell |
08/19/1998 | CN1190869A Potentiation of biocide activity using an n-alkyl heterocyclic compound |
08/19/1998 | CN1190646A Water treatment method by ozonation and relative treatment apparatus |
08/19/1998 | CN1039545C Frame type fixed bed electrode electrolyzer and its industrial application |
08/18/1998 | USRE35871 Water reclamation system and method |
08/18/1998 | US5795926 Preparation of finely divided polymer powders |
08/18/1998 | US5795842 Floating aticle |
08/18/1998 | US5795551 Floating chemical dispenser with delay for swimming pools |
08/18/1998 | US5795487 Process to manufacture stabilized alkali or alkaline earth metal hypobromite and uses thereof in water treatment to control microbial fouling |
08/18/1998 | US5795486 Adding in stoichiometric excess, separating precipitate formed |
08/18/1998 | US5795485 Containing metal chelating polymer |
08/18/1998 | US5795481 Water treatment and purification with biological filters |
08/18/1998 | US5795471 Shower head having a water purifying function |
08/18/1998 | US5795459 Apparatus and method for water purification |
08/18/1998 | CA2230436A1 Water filter |
08/18/1998 | CA2097716C Membrane bioreactor system for treating synthetic metal-working fluids and oil-based products |
08/18/1998 | CA2082034C Absorption of materials |
08/18/1998 | CA2044045C Electric iron with a demineralizing cartridge and an improved water reservoir |
08/13/1998 | WO1998035434A1 Control circuit and method for piezoelectric transformer |
08/13/1998 | WO1998034881A1 Receptacle for sterilizing drinking water |
08/13/1998 | WO1998034877A2 Two-component agent for water-treatment in aquariums for tropical fish |
08/13/1998 | WO1998034717A1 Device for controlling, guiding, adjusting, measuring and monitoring liquid flows, and water treatment facility |
08/13/1998 | WO1998034716A1 Method of processing desulfurization absorption liquid and apparatus therefor |
08/13/1998 | DE19806349A1 Assembly couples electrical and magnetic energy fields to enhance application properties |
08/13/1998 | DE19704953A1 Zwei-Komponentenmittel zur Wasserklärung von tropischen Zierfischaquarien Two-component composition for water purification of tropical ornamental fish aquarium |
08/13/1998 | DE19704747A1 Electromagnetic treatment unit for water to prevent deposits in pipes |
08/13/1998 | DE19704656A1 Einrichtung zur Lenkung, Steuerung, Regelung, Messung und Überwachung von Flüssigkeitsströmen und Wasseraufbereitungsanlage Means for directing, controlling, regulating, measuring and monitoring the flow of liquids and water treatment plant |
08/12/1998 | EP0857698A2 Activated sludge system for the purification of waste water from civil building outlets |
08/12/1998 | EP0857695A2 Liquid purification apparatus employing silver electrodes |
08/12/1998 | EP0857694A2 Method for stabilising halogen disinfectant in aqueous system |
08/12/1998 | EP0857514A2 Method of preventing corrosion in a water system |
08/12/1998 | EP0857082A1 A manufacturing method of granulated complex molecular sieve composition having multifunctions |
08/12/1998 | EP0857021A1 Potentiation of biocide activity using an n-alkyl heterocyclic compound |
08/12/1998 | EP0809529A4 Filter material for preparing a beverage |
08/12/1998 | EP0800481B1 Process and device for reducing the nitrate content of water |
08/12/1998 | EP0722424B1 Uv apparatus for fluid treatment |
08/12/1998 | EP0710217A4 Method of aeration of liquids |
08/12/1998 | CN2287622Y Multilayer fiber water treatment equipment for removing iron and mangense |
08/12/1998 | CN1190100A Aqueous dispersions based on water-soluble polymers |
08/12/1998 | CN1039486C Synergistic catalyst for regeneration maintenance of hard water softening apparatus |
08/11/1998 | US5792942 Apparatus for determining properties of slurry materials and sludge treating process |
08/11/1998 | US5792441 Fixed-resin bed technologies for the treatment of the chlorine dioxide generator effluent and feeds stream |
08/11/1998 | US5792433 Light irradiating device with easily replaceable light irradiating lamps |
08/11/1998 | US5792371 Method of disinfecting water with iodine species |
08/11/1998 | US5792370 Chemical method for destruction of pathogenic organisms in water |
08/11/1998 | US5792369 Disinfecting a water stream by exposing a small amount to bromide or iodide salts of silver, sodium or calcium, mixing with oxidizing gases and mixing with copper, manganese and/or silver ions; laundries; air conditioning; aircraft heads, etc |
08/11/1998 | US5792365 Flocculation of colloidal dispersion of dissolved particles using montmorillonite in polar liquid to form aggregates |
08/11/1998 | US5792364 Wastewater treatment process for vacuum degasser effluent |
08/11/1998 | US5792363 Method for removing solids from a contaminated liquid |
08/11/1998 | US5792362 Recirculation of water containing microscopic air bubbles into pool water to cause floatation of settled sediment for removal by skimming |
08/11/1998 | US5792361 Method for treatment of an aqueous waste material |
08/11/1998 | US5792360 Water treatment system comprising water-soluble glass |
08/11/1998 | US5792351 Spinning filter separation system for oil spill clean-up operation |
08/11/1998 | US5792343 Brine supply system |
08/11/1998 | US5792336 Method for purification of wastewater from soluble substances |
08/11/1998 | US5792315 Purifying aqueous effluent from a pulp mill using electro chemical membrane device |
08/11/1998 | US5792313 Concentrating the solution in presence of an acid and a base flow alternatively preventing clogging |
08/11/1998 | CA2229195A1 Inline cartridge filter |
08/11/1998 | CA2075134C Process for denaturing water-dilutable paints and solvent-based paints and denaturation solution used in this process |
08/11/1998 | CA2010535C Method and solid material body for the purification of fluids such as water, aqueous fluids and liquid fuels |
08/06/1998 | WO1998033829A1 Triphenylboron-containing polymer and use thereof |
08/06/1998 | WO1998033744A1 Water purification device |
08/06/1998 | WO1998019788A3 Method and apparatus for dissociating materials |
08/06/1998 | DE19715084A1 Vibrator assembly de-waters wet sludge held in perforated bag or container |
08/06/1998 | DE19704046A1 Solar still based on double-walled plates |
08/06/1998 | DE19650191C1 Process and assembly to filter water provided especially for domestic drinking purposes |
08/06/1998 | DE19647562A1 Pre-treatment of nitrogenous waste liquor |
08/05/1998 | EP0856597A1 Process for monitoring the electrolyte circulation in an electrolysis cell |
08/05/1998 | EP0856596A2 Filtration device for extending the duration of the fluid |
08/05/1998 | EP0856491A2 Apparatus for producing ozone water |
08/05/1998 | EP0856359A1 Apparatus for magnetic purification |
08/05/1998 | EP0856351A2 Electrodialysis apparatus |
08/05/1998 | EP0856345A1 Assembly for degassing ground and/or waste water |
08/05/1998 | EP0643617B1 Unit for treating liquid |
08/05/1998 | CN2287156Y Static pressure water purifier for removing iron and managanese |
08/05/1998 | CN2287155Y Catalytic deoxygenating and deferrizating combined apparatus |
08/05/1998 | CN2287154Y Ionization generator for drinking water |
08/05/1998 | CN2287153Y Magnetic water purifier |
08/05/1998 | CN2287152Y Electrolyzing apparatus for water treatment |
08/05/1998 | CN2287151Y Belt-floating recovery apparatus for oil on water surface |
08/05/1998 | CN2287150Y Super-purifying,-minerizing and-magnetizing apparatus for dirnking water |
08/05/1998 | CN1189808A Stabilized alkali or alkaline earth metal hypobromite and process for its prodn. |
08/05/1998 | CN1189463A Method for extracting chromium from chroming waste water and waste slag |
08/05/1998 | CN1189462A Tech. for treatment of waste water containing cyanogen by hydrogen peroxide oxidation process |
08/05/1998 | CN1189461A Waste water treatment method in reduction method for prodn. of strontium carbonate |
08/05/1998 | CN1189460A Simple method for coagulating waste water |
08/04/1998 | US5790934 Apparatus for photocatalytic fluid purification |
08/04/1998 | US5789755 Method and apparatus for removal of material utilizing near-blackbody radiator means |
08/04/1998 | US5789488 Water treatment |
08/04/1998 | US5789239 Composition and process for the avoidance of slime formation and/or for the removal of biofilm in water-bearing systems |
08/04/1998 | US5788937 Method for the recovery of silver value from aqueous solution |
08/04/1998 | US5788933 Support in an ion exchange water softener formed of acrylonitrile-butadiene-styrene terpolymer |
08/04/1998 | US5788865 Process for separating a hydrophobic liquid from a liquid contaminated therewith |
08/04/1998 | US5788858 Transportable; reverse osmosis filtration |