| Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429) |
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| 08/19/2009 | CN100528774C Process for treating EDTA chemical rinsing waste water |
| 08/19/2009 | CN100528752C Method for reclaiming lignin and alkali from boiling black liquor |
| 08/18/2009 | US7575678 Portable water purification device |
| 08/18/2009 | CA2189535C Liquid treatment method and system |
| 08/13/2009 | WO2009100043A2 Process for removing and recovering phosphorus from animal waste |
| 08/13/2009 | US20090204419 Purification of Oil Field Production Water for Beneficial Use |
| 08/13/2009 | US20090200249 Desalination system and pressure storage systems therefor |
| 08/13/2009 | US20090200218 Aquarium sump arrangement |
| 08/13/2009 | US20090200216 Storm drain filter |
| 08/13/2009 | US20090200215 Integrated portable water purifier |
| 08/13/2009 | DE102008008031A1 Combined in-situ and on-site cleaning of water containing harmful substances e.g. phenol and alkylphenols, comprises in-situ cleaning of contaminated groundwater in subsurface oxidation and on-site removing substances in the groundwater |
| 08/13/2009 | DE102008008030A1 In-situ cleaning of contaminated groundwater, comprises saturating groundwater with ozone-oxygen mixture using ozone injection unit and then propagating ozone into the groundwater in flow direction, and controlling dosage of ozone-oxygen |
| 08/13/2009 | DE102008008029A1 Method for cleaning an aqueous medium with toxic and/or highly degradable organic-containing materials, comprises carrying out a complex cleaning operation in a process combination consisting of pre-treatment and conditioning |
| 08/12/2009 | EP2086887A2 Integrated utility system |
| 08/12/2009 | EP1351893B1 Device for generating and applying ozonated water |
| 08/12/2009 | CN201288110Y Full-automatic life waste water treating device |
| 08/12/2009 | CN201288109Y Assembling modular domestic wastewater treating plant case body |
| 08/12/2009 | CN201288108Y Reclaimed water recycling apparatus |
| 08/12/2009 | CN201288107Y Monotubular multi-layer water-strainer convenient to inversely flushing |
| 08/12/2009 | CN201288106Y Synthetic wastewater treatment system for industrial wastewater from carbonization industry |
| 08/12/2009 | CN201288105Y Vehicle mounted mobile direct drinking water apparatus |
| 08/12/2009 | CN201288104Y Ultraviolet active carbon joint-use purifier |
| 08/12/2009 | CN201288103Y Industrial waste water treatment apparatus |
| 08/12/2009 | CN201288102Y Integrated apparatus for treating waste-water from coal mine |
| 08/12/2009 | CN201288101Y Water treating device for softening, clarifying and filtering lime |
| 08/12/2009 | CN201288100Y One-stage four-chamber integrated purifier |
| 08/12/2009 | CN201288099Y On-line quality-division water supply and automatic water-storage water purifier for tap water |
| 08/12/2009 | CN201286292Y Water treatment device of aquariums |
| 08/12/2009 | CN101506104A Method for removing sulphate and heavy metals from waste water |
| 08/12/2009 | CN101503350A Method for recycling acid and valuable metal from oxalic acid wastewater |
| 08/12/2009 | CN101503268A Zero discharge processing EBM method for dyeing waste water |
| 08/12/2009 | CN101503267A Coal chemical industry wastewater treating method |
| 08/12/2009 | CN101503266A Biological-ecological combined method and apparatus for purifying sewage |
| 08/12/2009 | CN101503265A Constructed wetland processing and comprehensive utilization technique for farm household sewage water and rainwater |
| 08/12/2009 | CN101503264A Method for ectopically and ecologically repairing eutrophication water |
| 08/12/2009 | CN101503263A Wastewater treatment recycling technique and equipment thereof |
| 08/12/2009 | CN101503262A Sewage water pretreatment method for complicated system |
| 08/12/2009 | CN101503261A Technique for advanced treatment and recovery for seafood processing wastewater |
| 08/12/2009 | CN101503260A System for preparing steady state oxygen ionized water |
| 08/12/2009 | CN101503259A Method for regenerating Macrobrachium rosenbergii breeding waste seawater |
| 08/12/2009 | CN101503258A Work platform for oxidizing blue algae by high energy physics direct oxidation technology |
| 08/12/2009 | CN101503257A Method and apparatus for recovering and treating ammonium nitrate condensate liquid wastewater |
| 08/12/2009 | CN101503256A Self-generating multifunctional self-cleaning water purifier |
| 08/12/2009 | CN101503255A Method for treating heavy metal polluted water by multicomponent composite flocculating setting agent |
| 08/12/2009 | CN101503254A Technique for treating aeration lagoon remained papermaking black liquor by oxidation-coagulation method |
| 08/12/2009 | CN101503253A Clean multipurpose water purification equipment |
| 08/12/2009 | CN101503252A Portable emergency drinking machine |
| 08/12/2009 | CN101503251A Method for removing and recycling nitrogen and phosphor in municipal sewage by spirogyra-biological film system |
| 08/12/2009 | CN100526242C Alkaline residue processing method |
| 08/12/2009 | CN100526241C Grog paper-making waste water physicochemical circulation biochemical treatment zero discharging technique |
| 08/12/2009 | CN100526240C Method for anerobic aerobic granular sludge treating high concentration waste water from paper-making method tobacco slice production |
| 08/12/2009 | CN100526239C Deep treatment technique of heavy crude heat extraction sewage for high pressure boiler |
| 08/12/2009 | CN100526238C Method for purifying and reclaiming phosphorus from urine by electric flocculation technique |
| 08/12/2009 | CN100526237C Method of processing hydrazine hydrate waste water by ketone linking nitrogen method |
| 08/12/2009 | CN100526236C Process for treating and recovering wastewater of coking |
| 08/12/2009 | CN100526235C Process for treating waste waters containing aromatic nitro compounds |
| 08/12/2009 | CN100525941C Innocent treatment method for oil-containing sewage sludge |
| 08/11/2009 | US7572378 Recycled irrigation water treatment system including reverse osmosis |
| 08/06/2009 | WO2009064204A3 System and process for the treatment of raw material |
| 08/06/2009 | US20090194272 Apparatus and method for treating injection fluid |
| 08/05/2009 | EP1945580B1 Process and system for the treatment of water contaminated with nitrates |
| 08/05/2009 | EP1909948A4 Contaminated inflow treatment with membrane distillation bioreactor |
| 08/05/2009 | EP1683766B1 Method of reducing the pollution load of purines |
| 08/05/2009 | CN201284503Y Reclaimed water reclamation plant |
| 08/05/2009 | CN201284281Y Biochemical treatment system for wastewater |
| 08/05/2009 | CN201284280Y Constant water level CAST sewage treatment system |
| 08/05/2009 | CN201284279Y Biochemical processor |
| 08/05/2009 | CN201284278Y Water control device for tap water |
| 08/05/2009 | CN201284277Y Small-sized water purifying appliance |
| 08/05/2009 | CN201284276Y System for extracting concentrated liquor from water at deep layer of ocean |
| 08/05/2009 | CN201284275Y Waste water treatment system of copper foil substrate raw material plant |
| 08/05/2009 | CN101497489A Method for wastewater treatment under low temperature |
| 08/05/2009 | CN101497488A Multi-stage water purifying apparatus with nano photocatalysis reactor |
| 08/05/2009 | CN101497487A Water treatment system and water treatment process |
| 08/05/2009 | CN101497486A Multi-stage water purifying apparatus with diamond electrocatalysis module |
| 08/05/2009 | CN101497485A Portable field direct drink kettle with manual water flowmeter |
| 08/05/2009 | CN101497484A Method for treating ferric trichloride etching waste liquor |
| 08/05/2009 | CN101497483A Method for treating mining as well as mining and metallurgy wastewater by low cost reaction type water treatment agent |
| 08/05/2009 | CN101497482A Drink raw water purifying treating method |
| 08/05/2009 | CN101497458A Method for preparing sodium stannate using circuit board tin-stripping wastewater |
| 08/05/2009 | CN101497445A Method for recycling 10B concentrated solution from waste liquor produced from extraction of 10B isotope element |
| 08/05/2009 | CN100522851C Anaerobic-aerobic-film processing technique for urban domestic refuse percolate |
| 08/05/2009 | CN100522850C Method for treating waste water of 1,4-butanediol production |
| 08/05/2009 | CN100522849C Method for advanced treatment of ammonia nitrogen sewage |
| 08/05/2009 | CN100522848C System for managing edible water |
| 08/05/2009 | CN100522847C Physiochemical and biochemical interactive city sewage treating method |
| 08/05/2009 | CN100522846C Method for wastewater treatment by comprehensive utilization of frequency mixing ultrasonic and ozone |
| 08/05/2009 | CN100522845C Method for wastewater treatment by comprehensive utilization of frequency mixing ultrasonic and non-reducing gas |
| 08/05/2009 | CN100522844C Method for wastewater treatment by comprehensive utilization of frequency mixing ultrasonic, ozone and other non-reducing gas |
| 08/05/2009 | CN100522835C Method and apparatus for treating waste water containing low-concentration perfluoro ammonium caprylate |
| 08/04/2009 | US7569182 circulation system for improved filtration of filtering water used in a microbial deactivation/sterilization system for medical, dental, pharmaceutical, veterinary or mortuary instruments and devices |
| 08/04/2009 | US7569142 Method and apparatus for liquid treatment with combined electronic and centrifugal processes to remove contaminants |
| 08/04/2009 | CA2493615C Hog manure treatment system |
| 07/30/2009 | WO2009092821A1 Treatment of biological sludge |
| 07/30/2009 | WO2009074121A3 Chlorine free technology of pool water treatment |
| 07/29/2009 | EP2083068A1 Device for treating and purifying a liquid product |
| 07/29/2009 | CN201280499Y Integrated sewage treatment case |
| 07/29/2009 | CN201280498Y Integrated process apparatus for oily wastewater |
| 07/29/2009 | CN201280497Y Biological treatment equipment for caustic sludge wastewater |
| 07/29/2009 | CN201280496Y Cross-country type drinking water conditioning vehicle |