| Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429) |
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| 08/06/2008 | CN101234833A Straw pulping paper-making or sulfite method pulping paper-making middle piece waste water treatment technique |
| 08/06/2008 | CN101234832A Industrial sewage irradiation integrated treatment technique |
| 08/06/2008 | CN101234831A Waste water denitrogenation and marsh gas desulfurization coupling technique |
| 08/06/2008 | CN101234830A Multi-layer type sewage treatment device |
| 08/06/2008 | CN101234829A Method for treating copper-containing acid-containing waste liquid produced by glucide displacement reaction |
| 08/06/2008 | CN101234828A Integrated electroplating treatment method for waste water |
| 08/06/2008 | CN101234827A Treatment and resource reclaiming method for chromium-containing wastewater containing high concentration sodium sulfate |
| 08/06/2008 | CN101234826A Sulfuration recovery processing method and device for high-acidity high-arsenic high-cadmium waste water |
| 08/06/2008 | CN101234825A Self-cleaning energy-saving water preparing system |
| 08/06/2008 | CN101234765A Method of reutilization of waste lye in producing zirconium oxychloride from alkali fusion zircon |
| 08/06/2008 | CN101234753A Method and apparatus for recovering sulfide and protein from depilation waste liquor |
| 08/06/2008 | CN100408493C Sewage treating system with changeable water treating process |
| 08/06/2008 | CN100408492C Method of processing organic contaminant waste-water difficult to biochemical degradation using tetravalent manganese compounds |
| 08/06/2008 | CN100408491C No pollution treatment technique for residue of refined terephthalic acid thin-film evaporator |
| 08/06/2008 | CN100408490C Method for filtration adsorption for disposing industrial effluent and city effluent |
| 08/06/2008 | CN100408489C Treatment method and apparatus of chemical waste containing anion and cation |
| 08/05/2008 | US7407585 water is subjected to two different purification processes, namely separation by means of at least one selective permeability membrane followed by deionization |
| 08/05/2008 | CA2362774C Improved water purification pack |
| 07/31/2008 | WO2008089529A1 Process and apparatus for reuse of liquid effluents generated in the textile finishing, laundering, dyeing and stamping process |
| 07/31/2008 | WO2008008104A3 System, method and apparatus for treating liquids with wave energy from plasma |
| 07/31/2008 | DE102007004310A1 Cleaning process for water polluted with sulfate and heavy metal ions involves adding cleaning substance to reduce concentration so that ions are precipitated |
| 07/30/2008 | CN201092556Y Stagewise compound ecological bed |
| 07/30/2008 | CN201092555Y Highly-effective biological sewage treatment equipment |
| 07/30/2008 | CN201092554Y Controlling means for reclaiming nickel plating waste-water by on-line ion-exchange |
| 07/30/2008 | CN201092553Y Pollution-discharge type six-stage water clarifier |
| 07/30/2008 | CN101233084A Modular water treatment unit |
| 07/30/2008 | CN101232189A Adaptive inductive power supply with communication |
| 07/30/2008 | CN101229950A Steelmaking converter smoke-gas washing water quality controlling method |
| 07/30/2008 | CN101229949A Mobile radioactive liquid waste treatment equipment |
| 07/30/2008 | CN100406399C Method and system for harnessing consumer waste landfill percolate |
| 07/30/2008 | CN100406395C Multi-partition assembly |
| 07/29/2008 | US7404900 Ammonium removal system including an electrophysical separation system |
| 07/29/2008 | US7404894 Portable water cleaner |
| 07/24/2008 | WO2008089279A1 Reduced fouling of reverse osmosis membranes |
| 07/24/2008 | WO2008087264A2 Method for the floatation-clarification of difficult water and facility for implementing same |
| 07/24/2008 | WO2008086585A1 Gas-collecting hood and water bafflers for use in hydroelectric power plants for capturing methane from deep waters |
| 07/24/2008 | US20080173589 Desalinated water packaging |
| 07/24/2008 | US20080173582 Screening unit for filaments/debris retention; Tank, homogenization and retention of the liquid effluent; Cooling of the liquid effluent, pH correction; Aerobic bioreactor for organic load reduction; Settler (circular, lamella or plate); Sludge thickener; water recycling and reuse |
| 07/24/2008 | CA2672578A1 Method for the floatation-clarification of difficult water and facility for implementing same |
| 07/23/2008 | EP1947061A1 Method for eliminating organic compounds containing nitrogen from water containing salt |
| 07/23/2008 | EP1946822A2 Regenareation of adsorption media within an electrodeionization device |
| 07/23/2008 | EP1945582A1 An apparatus for treatment of drinking water, in particular for domestic use |
| 07/23/2008 | EP1945581A1 A modular apparatus for treatment of drinking water, in particular for domestic use |
| 07/23/2008 | EP1945580A1 Process and system for the treatment of water contaminated with nitrates |
| 07/23/2008 | CN201089741Y Carwash wastewater purification device |
| 07/23/2008 | CN101225670A Roof rain water collection simple device having folding water storage tank |
| 07/23/2008 | CN101224938A Method for restricting membrane pollution by using photocatalysis oxidation of nano material |
| 07/23/2008 | CN101224937A Reuse treating method for chemical industrial plasticizer waste water |
| 07/23/2008 | CN101224936A Process for treating coking wastewater |
| 07/23/2008 | CN101224935A Method for treating landfill leachate |
| 07/23/2008 | CN101224934A Urea-containing analytic waste water treatment system and method |
| 07/23/2008 | CN101224933A Treatment method for zero discharge of ionic liquid water solution |
| 07/23/2008 | CN101224932A Water washing machine |
| 07/23/2008 | CN101224931A Method for catalytic cleaning and evaporative cooling circulation cooling water of air conditioner by ozone cooperative with ultraviolet radiation |
| 07/23/2008 | CN101224930A Zero-discharge reuse treating method for spandex dyeing waste water |
| 07/23/2008 | CN101224929A Device and method for producing drinking ultra-light water |
| 07/23/2008 | CN101224928A Water purification technology |
| 07/23/2008 | CN101224927A Dyeing waste water advanced treatment system and method |
| 07/23/2008 | CN100404442C Method for treating drinking water of replacing disinfecting action of medicament |
| 07/23/2008 | CN100404441C Treatment method of high concentration undegradable nitrile containing organic waste water |
| 07/23/2008 | CN100404440C Chemical fiber printing alkali reducing quantity waste water resources pretreatment method |
| 07/22/2008 | US7402244 Portable water filtering assembly |
| 07/22/2008 | US7402239 Water purification apparatus and method of using the same |
| 07/22/2008 | CA2338943C Process for removal and stabilization of arsenic and selenium from aqueous streams and slurries |
| 07/17/2008 | WO2008085106A1 Method for purifying water by means of an ro device |
| 07/17/2008 | WO2008085104A1 Method for purifying water using low energy consumption |
| 07/17/2008 | WO2008083433A1 Treatment of contaminants |
| 07/17/2008 | US20080169248 Separator with counter current flow of the fibrous material; a first separator which removes water from manure to increase the dilution factor; the fibrous material passes a second separator, then through a dewatering mechanism |
| 07/17/2008 | US20080169244 Dissolved air floatation with filter system |
| 07/17/2008 | US20080169239 Remediation of waste water |
| 07/17/2008 | US20080169232 Functional Water Purifier |
| 07/17/2008 | US20080169231 Upflow bioreactor with septum and pressure release mechanism |
| 07/17/2008 | DE102007002107A1 Removing ammonium nitrogen from wastewater during biological treatment, pulsates wastewater at natural frequency of oxygen bubbles or particles |
| 07/16/2008 | EP1765482A4 One-touch fitting type single or multiple adapter, filter assembly detachably engaged with the same and water purifying system employing these elements |
| 07/16/2008 | CN201087162Y Intelligent multi-supply water demineralizing device |
| 07/16/2008 | CN201087161Y Sewage processing reclaimer for vapor injection boiler in oil fields |
| 07/16/2008 | CN201087160Y Purifier with improved structure |
| 07/16/2008 | CN201086075Y Electromagnetic ultrasonic antiscaling machine |
| 07/16/2008 | CN101219848A Drinking water deeply purifying method and device |
| 07/16/2008 | CN101219847A Integrated water purification processing method and device of ultrafiltration membrane coagulation/bioreactor |
| 07/16/2008 | CN101219846A Ultrafiltration membrane coagulation /adsorption/bioreactor integrating advanced water treatment method and device |
| 07/16/2008 | CN101219845A Technique for processing garbage leachate |
| 07/16/2008 | CN101219844A Technique for biological treatment of mine acidic wastewater |
| 07/16/2008 | CN101219843A Process for producing carbon source for processing wastewater |
| 07/16/2008 | CN101219842A Technique and equipment for recycling leachate of garbage |
| 07/16/2008 | CN101219841A Method for purifying leachate of landfill and dewatering water of food waste |
| 07/16/2008 | CN101219840A Method for recycling ion liquid from filature wastewater |
| 07/16/2008 | CN101219839A Non-wastewater discharge process technique for furfurol industry |
| 07/16/2008 | CN101219838A Method for processing heavy metal industrial waste water with low concentration |
| 07/16/2008 | CN101219837A Ozonation process and equipment for oil-containing alkali wastewater |
| 07/16/2008 | CN101219836A System and technique for processing oily wastewater with high saline salinity |
| 07/16/2008 | CN100402448C Paper-making effluent purifying treatment process |
| 07/16/2008 | CN100402447C Ecological treatment method for sewage subsidiary region and equipment |
| 07/16/2008 | CN100402446C Treatment method of lead-containing waste water |
| 07/16/2008 | CN100402445C Sewage treating method for chitin production process |
| 07/16/2008 | CN100402121C System and method of gas energy management for particle flotation and separation |
| 07/11/2008 | CA2617809A1 Fiber separator system |
| 07/10/2008 | WO2008035990A3 Screening apparatus |
| 07/10/2008 | US20080164217 Remove microbes in untreated liquid; mechanical treatment to kill microbes; apply sodium hypochlorite or hydrogen peroxide and ozone; electrolytic circulation system; kill the microbes that cause seawater pollution or damage to human beings and creatures in the sea or those that disturb ecosystems |
| 07/10/2008 | US20080164209 Three-stage treatment of hard water by microfiltration to remove calcium carbonate and silicon dioxide by fluidly connected microfiltration; reverse osmosis and an electrochemical device to obtain water of a specific resistance of =/> megohm-cm; durable membranes; remote sites, rapid system set-up |