| Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429) |
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| 07/10/2008 | US20080164192 Method and Device for Treatment of Liquids, in Particular for Purification of Contaminated Water |
| 07/09/2008 | CN201082879Y Acidic industrial waste water treatment system |
| 07/09/2008 | CN201082878Y Microcirculation water ordering device |
| 07/09/2008 | CN201082877Y Oil-containing sewage treating apparatus |
| 07/09/2008 | CN201082863Y Device for reclaiming breadboard etching waste liquid and preparing copper oxide or copper sulfate from the same |
| 07/09/2008 | CN101218012A Regenareation of adsorption media within an electrodeionization device |
| 07/09/2008 | CN101215845A Divided water supply device |
| 07/09/2008 | CN101215072A Biological activated carbon sea water treatment method for increasing organism degradability |
| 07/09/2008 | CN101215071A Method for treating chlorine alkali waste water by calcium carbide ethyne method and biological treatment agent thereof |
| 07/09/2008 | CN101215070A Carbon source synergistic metabolism biological treatment method for persistent organic pollutant in waste water of paper making by waste paper |
| 07/09/2008 | CN101215069A Industrialization ecological treatment circulation utilization system for fish culture waste water |
| 07/09/2008 | CN101215068A Biological treatment technique for coking waste water |
| 07/09/2008 | CN101215067A ''Zero discharge'' device for nickel plating cleaning water |
| 07/09/2008 | CN101215066A Technique for treating chitin waste water |
| 07/09/2008 | CN101215065A ''Earthworm-hydrophyte-anaerobic microorganism'' combined technique for treating organic waste water |
| 07/09/2008 | CN101215064A Simultaneity nitration denitrification biological denitrogenation method in oil-containing waste water biological treatment process |
| 07/09/2008 | CN101215063A Integral treatment method for waste water of acephate producing process |
| 07/09/2008 | CN101215062A Method and system for reclaiming valuable resource in acidic etching waste liquid |
| 07/09/2008 | CN101215061A Pretreatment method and device for sea water desalination |
| 07/09/2008 | CN101215060A Device for treating oil field waste water |
| 07/09/2008 | CN101215059A Alkaline chemical deposition treatment method for overproof metal pollution in water |
| 07/09/2008 | CN101215058A Method for treating chemical industry region tail water film-filter concentration liquid |
| 07/09/2008 | CN101215057A Method for treating organic waste water |
| 07/09/2008 | CN101215056A Energy-storing quality-classifying water-purifying water feeder for manual water jar |
| 07/09/2008 | CN101215055A Reclaiming and treating method for phenolic aldehyde sewage |
| 07/09/2008 | CN101215054A Coagulation air-float co-agglomeration technique for treating sewage |
| 07/09/2008 | CN101215053A Circulation utilization method for waste water in seaweed chemical industry production |
| 07/09/2008 | CN101215052A Technique and device for treating sewage to reclaimed water |
| 07/09/2008 | CN101215051A Minitype sea water desalination system water treatment technique |
| 07/09/2008 | CN101215037A Iron contact dephosphorization device and method |
| 07/09/2008 | CN101214976A Extraction system for preparing salt by concentrating sea water |
| 07/09/2008 | CN100400441C Process for combined water treatment of chemical oxidizing-biological biological filtering tank |
| 07/09/2008 | CN100400435C Process for treating industrial waste water containing chromium, vanadium |
| 07/09/2008 | CN100400187C Single-stage horizontal floatation cell |
| 07/05/2008 | CA2618265A1 Water treatment systems and methods |
| 07/03/2008 | WO2008078668A1 Method of feeding makeup water for boiler water supply |
| 07/03/2008 | WO2008077549A1 Filtering device and filter holder for a water dispensing device and water dispensing device with at least one filtering device and at least one filter holder |
| 07/03/2008 | WO2008059340A8 Water filtration and sterilisation device |
| 07/03/2008 | WO2008046139A8 Wastewater treatment |
| 07/03/2008 | US20080156724 Recirculating wastewater evapotranspiration and disinfection system |
| 07/03/2008 | DE102006057910A1 Treatment of used oil, water and oil mixtures, or solvent and water mixtures, first extracts impurities, then exposes to regenerable adsorbent material |
| 07/02/2008 | EP1937604A1 Biological phosphorous removal |
| 07/02/2008 | CN201080457Y Biological safety experimental laboratory sewage processing device |
| 07/02/2008 | CN201080456Y Integral water purifying device |
| 07/02/2008 | CN201080176Y Cleaning machine using waste water |
| 07/02/2008 | CN101209888A Recycling processing technique for dyeing and printing sewage |
| 07/02/2008 | CN101209887A Sewage denitrification dephosphorization system and operation method |
| 07/02/2008 | CN101209886A Advanced treatment recycling technique of urban sewage |
| 07/02/2008 | CN101209885A Wastewater treatment method of garbage leachate |
| 07/02/2008 | CN101209884A Method and device for comprehensive processing zero discharge and recovering commonly industrial wastewater |
| 07/02/2008 | CN101209883A Technique for processing coking wastewater or organic wastewater by supercritical water oxidization technique |
| 07/02/2008 | CN101209882A Black pigment water separation and dehydrogenating method |
| 07/02/2008 | CN101209881A Method and system for processing leachate of garbage burning factory |
| 07/02/2008 | CN100398470C Infiltration method for treating garbage |
| 07/02/2008 | CN100398469C Apparatus and method for performing tertiary treatment of sewage based on porous filtering media |
| 07/02/2008 | CN100398468C Process for dechlorination of organic chloride through metal reduction assisted and strengthened by ultrasonic wave |
| 06/26/2008 | US20080149574 Gas/Liquid Separator Assembly with Preseparator and Liquid Filter, and Methods |
| 06/26/2008 | US20080149573 System and Method for Desalinating Water Using Alternative Energy |
| 06/26/2008 | DE202008003330U1 Vorrichtung zur Wasseraufbereitung A water purification |
| 06/26/2008 | DE102006060485A1 Arsenic removal method from polluted water, particularly reduced arsenic contaminated groundwater, involves filtering of polluted water in two stage anaerobic method |
| 06/26/2008 | DE102006060428A1 Process for the continuous purification of waste water in papermaking, comprises feeding waste water to anaerobic reactor, and contacting the water in reactor with anaerobic microorganisms to degrade contaminants present in water |
| 06/26/2008 | DE102006060426A1 Method for purifying effluent, particularly continuous purification of effluent in paper industry, involves utilizing aerobic reactor, which cleans supplied effluent by aerobic microorganisms |
| 06/25/2008 | EP1934148A1 Method for treating aldolisation process waste waters |
| 06/25/2008 | EP1848668A4 Systems and methods for treatment of liquid solutions for use with livestock operations |
| 06/25/2008 | EP1015090B1 Flowmeter system useable with water treatment device |
| 06/25/2008 | EP1007482B2 Method for purifying waste water comprising an additional sludge treatment by ozonation |
| 06/25/2008 | CN201077808Y Flush-with-ground type sewage treating device |
| 06/25/2008 | CN201077807Y Sterilization, heavy metal ion removing and strong oxygenize stain removing water purification apparatus |
| 06/25/2008 | CN101205110A Sewage water treatment device and method thereof |
| 06/25/2008 | CN101205109A Apparatus for treating chemical fiber waste water by anaerobic method |
| 06/25/2008 | CN101205108A Highly effective composite hydrolytic acidation cell having both sewage treatment and sludge reduction functions |
| 06/25/2008 | CN101205107A Method for treating and recycling paper-making waste water |
| 06/25/2008 | CN101205106A Handling method for refractory waste water |
| 06/25/2008 | CN101205105A Regeneration treatment and cyclic utilization method of printing and dyeing wastewater |
| 06/25/2008 | CN101205104A Recovery method of lithium ion battery anode material waste slurry |
| 06/25/2008 | CN101205103A Method for treating waster water produced by production of acephate with ammonia neutralization process |
| 06/25/2008 | CN101205102A Non-pump high volume water purifier |
| 06/25/2008 | CN100396628C Treatment method and equipment for fracturing flowback waste water |
| 06/25/2008 | CN100396627C Clean production method for treating electroplating waste water by nano filtering process |
| 06/25/2008 | CN100396626C Treatment technology of spirulina waste water |
| 06/24/2008 | US7390417 Portable ultraviolet water purification system |
| 06/19/2008 | US20080142452 water tanks having a sleeve for conveying oxygen containing gases, ultraviolet radiation lamps for converting oxygen molecules into ozone, conduit for introducing the silver and ozone, and flowmeters, used for deactivating microorganisms in water |
| 06/19/2008 | US20080142422 Process And Plant For The Removal Of Metals By Biosorption From Mining Or Industrial Effluents |
| 06/19/2008 | US20080142420 Adsorption system |
| 06/19/2008 | DE102006057994A1 Device for degassing and sterilization of liquids for water treatment, comprises a housing with a liquid inlet and liquid outlet, ultrasonic source, container, adjustment device, ultraviolet light source, first grouping, control and valve |
| 06/19/2008 | DE102004033152B4 Reinigungssystem zur Herstellung dauerhaft naturnaher Wässer Cleaning system for producing durable semi-natural waters |
| 06/19/2008 | CA2671928A1 Method for treating wastewater or produced water |
| 06/18/2008 | EP1932809A2 Water-bearing device with electrodialysis cell |
| 06/18/2008 | EP1774088B1 Method for removing lignin from water |
| 06/18/2008 | EP1651569B1 Method for disinfecting liquids |
| 06/18/2008 | CN201074350Y Domestic convenient water-saving equipment |
| 06/18/2008 | CN201074194Y Heavy metal sewage treatment equipment |
| 06/18/2008 | CN101201989A Multifunctional automatization biological sewage treatment composite experimental device |
| 06/18/2008 | CN101200423A Epoxy ester wastewater recycling treatment method |
| 06/18/2008 | CN101200341A High road service area sewage water treating process and dynamic membrane bioreactor |
| 06/18/2008 | CN101200340A Sewage water treatment system |
| 06/18/2008 | CN101200339A Sewage treatment method |
| 06/18/2008 | CN101200338A Method for removing organics and ammonia nitrogen from aquaculture water |
| 06/18/2008 | CN101200337A Water treatment method of circulating-water culture system |
| 06/18/2008 | CN101200336A Process for zero-discharge treatment of o-phenylenediamine sodium sulfide reduction wastewater |