Patents
Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429)
07/2006
07/19/2006CN1264764C Water purification method and device
07/18/2006US7077958 Sewage treatment plant
07/18/2006US7077953 Nanofilter system and method of use
07/18/2006US7077201 Water treatment method for heavy oil production
07/13/2006WO2006052014A3 Organic waste water treatment method and apparatus for reducing amount of generated excess sludge
07/13/2006US20060151369 Method and device for purification of a liquid
07/12/2006EP1678081A1 Method and device for treating and recycling waste water
07/12/2006CN2795195Y Water purifier
07/12/2006CN1800060A A/O type biological aeration capacity-enlarging method for sewage water treatment factory
07/12/2006CN1800059A Capacity enlarging design and calculation method for sewage water treatment factory adopting A/O type biological aeration
07/12/2006CN1800058A Novel sewage water treatment method
07/12/2006CN1800057A Closed circulated utilization technology for industrial production acid waste water
07/12/2006CN1263690C Biological cleaning treating device and treating method
07/12/2006CN1263689C Method for treating developer and removing tank solution in waste water for circuit board
07/12/2006CN1263685C Chromium-containing waste water treatment method
07/12/2006CN1263681C Enclosure piece of filter
07/11/2006US7074339 cyclone separators having intakes and discharge appertures, pumps, housings and motors, used for separation of particle suspended in fluids
07/11/2006US7074337 Methods and apparatuses for filtering water
07/11/2006CA2488786C Process for treatment of heavy effluent
07/06/2006WO2006069418A1 Method for ground water and wastewater treatment
07/06/2006US20060144789 Systems and methods for purification of liquids
07/06/2006US20060144783 First treating with ozone to disrupt cell walls of undesired microorganisms, releasing nutrients from within the microorganisms for bioassimilation by aquatic plants, then ozonating the aquatic plant-treated water again
07/06/2006US20060144771 Filtering and purifying system
07/06/2006US20060144709 Use for production of oxidants and radicals which are used to oxidizing and eliminating organic material in liquids, and for destruction of bacteria, spores, micro organisms, algae and viruses, such as ballast water treatment; prevent fouling due to scaling; various waste water treatments
07/05/2006EP1676818A1 Filtering and purifying system
07/05/2006CN2793066Y Normal water greening integrating device
07/05/2006CN1796314A Method for processing urban sewage deeply
07/05/2006CN1796313A Processing plant for regenerating and using sewage
07/05/2006CN1796312A Method for recovering nickel and removing impurity from nickel-plated wastewater
07/05/2006CN1796311A Method of membrane integration technique for treating industrial wastewater
07/05/2006CN1262493C Water treatment device
07/05/2006CN1262492C Method and apparatus for treating and reusing domestic wastewater
07/05/2006CN1262491C High-efficiency treatment method of sewage and waste water and apparatus
07/05/2006CN1262490C Reverse osmosis method for treating sewage
07/04/2006US7070693 Process for treating septage
07/04/2006US7070685 decontamination of metal-bearing and/or radioactively polluted waters including heavy metals, semimetals and/or radionuclides in anionic form, wherein the metals and/or radionuclides are removed as neutral elements by electrochemical deposition after previous removal of insolubles
07/04/2006CA2330270C Water filtering system with replaceable cartridge for a refrigerator
06/2006
06/29/2006WO2006067418A1 Fluid treatment method and apparatus
06/29/2006WO2006066469A1 Production method of snow-melting agent of calcium acetate
06/29/2006WO2006066407A1 Method for treatment of highly-loaded effluent
06/29/2006US20060138053 Apparatus and method for processing of animal manure wastewater
06/29/2006US20060138046 Apparatus for and a method of treating organic waste
06/28/2006EP1673307A1 Method for treatment of sludge
06/28/2006CN2791035Y Oily sewage regenerating ultization device
06/28/2006CN1793103A Process for preparing calcium formate from recovered formylic acid in waste water of epoxy soybean oil
06/28/2006CN1792897A Process for depth treating total nitrogen of urban sewage
06/28/2006CN1792896A Process and apparatus for treating petrochemical sewage by coupling ozone oxidation in aerating biological filtering pool
06/28/2006CN1792895A Tech. for biochemical treating sulphur-containing chark waste water of high concentrating high ammonia nitrogen
06/28/2006CN1792894A Process for treating yellow ginger saponin waste water by hydrochloric acid method
06/28/2006CN1792893A Process for resoursefullizing treating of chemical cleaning waste water of electroplating second product
06/28/2006CN1792892A Process for comprehensive treating root of kudzu vine actived element column chromatographic eluant
06/28/2006CN1261378C Method for purifying wastewater through magnetic nano TiO2/SiO2/Fe2O3 composite photo-catalyst and equipment
06/28/2006CN1261375C Method for treating aqueous effluents contg. peroxidized compounds
06/28/2006CN1261194C Method of sterilizing for diffusion barrier, its pretreatment device and water purification method
06/22/2006WO2006065697A2 Method and apparatus for liquid purification
06/22/2006US20060131230 Biological membrane filtration system for water treatment and a water treatment process
06/22/2006US20060131168 Electrochemical treatment of ammonia in waste-water
06/22/2006DE102004059934A1 System to enrich a fluid with a gas, especially aerate water with oxygen, has a jet within the treatment chamber where the oxygen is ripped out by the water flow to form a mist to dissolve the oxygen
06/21/2006EP1670725A1 Reduced pressure water filtration system
06/21/2006EP1670573A1 Method and apparatus for removing at least one constituent from a solution
06/21/2006EP1480913B1 Nitrate removal
06/21/2006EP1451113A4 Integrated hydroponic and wetland wastewater treatment systems and associated methods
06/21/2006CN2789242Y Oil Field waterflood injection well flushing sewage recovery treatment facility
06/21/2006CN1791690A Method for handling waste material generated in a metallurgical process.
06/21/2006CN1789180A Treatment process for making sewage as recirculating cooling water
06/21/2006CN1789179A Highland and severe cold areas sewage treatment method
06/21/2006CN1260150C Method for treating wastewater from industry of spinning acrylics through two steps wet processes by using sodium thiocyanate as solvent
06/21/2006CN1260149C Industrial waste water treatment method by coaction of microwave, ultraviolet light catalytic oxidation and air-float
06/21/2006CN1260148C High flow mud-water particle multistage treatment apparatus
06/20/2006US7063793 Apparatus and method for removing mercury and mercuric compounds from dental effluents
06/15/2006WO2006062467A1 Water purifier
06/15/2006WO2006061408A1 Method of processing waste products
06/15/2006US20060124860 Photocatalyst sterilizer
06/15/2006US20060124556 Method and apparatus for liquid purification
06/15/2006US20060124540 Integrated hydroponic and wetland wastewater treatment systems and associated methods
06/15/2006CA2589963A1 Wastewater treatment plant
06/14/2006EP1667936A1 An apparatus for purifying and sterilizing
06/14/2006EP1540041B1 Structure of an electrode for use in an electrolytic cell
06/14/2006DE19608818B4 Zusammengesetzte Tensid-Barriere, Verfahren zu ihrer Herstellung und Anwendung Compound surfactant barrier, process for their preparation and use
06/14/2006CN2787654Y Waste water and substance treatment system for pasturage
06/14/2006CN2787653Y Waste water and waste substance treatment integrated machine for slaughtering and meat processing plant
06/14/2006CN1787973A Improved waste treatment and disposal system
06/14/2006CN1787866A Waste water filtration system vehicle
06/14/2006CN1785856A Mambrane method of recovery and utilization of refining oil and chemical polluted water and its equipment
06/14/2006CN1785855A Microwave plasma oxidation water treatment method and its application
06/14/2006CN1785854A Treatment and reuse method of high temperature dyeing waste water
06/14/2006CN1259260C Infiltration liquid treatment method for domestic refuse burying field
06/14/2006CN1259259C Device of treating depth of sewage for processing layered objective pollutant
06/13/2006US7060189 Method and apparatus for recycling wash chemicals
06/13/2006US7060017 Centrifugal separators
06/08/2006US20060118486 Evaporation of water from a dilute waste slurry to produce a concentrated waste slurry
06/08/2006DE102005052196A1 Drinking water donor with housing, drinking water supply and a tap with housing, comprising a water purification module for the improvement of the quality of drinking water with an electrolytic cell and an activated charcoal cell
06/08/2006DE102004058552A1 Verfahren zur Abwasseraufbereitung Process for Wastewater Treatment
06/07/2006EP1666423A1 Method and device for treating waste water
06/07/2006EP1663872A2 Treatment of aqueous chemical waste
06/07/2006EP1476239A4 Removable closure assembly for a water treatment system
06/07/2006CN1784261A System and method of gas energy management for particle flotation and separation
06/07/2006CN1784256A Water treatment devices and cartridges therefor
06/07/2006CN1781859A Method for treating waste water from meta dinitro benzene production
06/07/2006CN1781419A Water dispenser and filter cartridge for use therein