Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
06/2002
06/13/2002US20020069664 Method and apparatus for disinfecting a water cooler reservoir
06/13/2002US20020069653 Water producing and dispensing machine
06/13/2002DE10108528C1 Process for treating liquids e.g. seawater, brackish water, wastewater and effluent comprises using preheating/removal unit for preheating and pre-cleaning the liquid
06/13/2002DE10061609A1 Coating or impregnating surfaces of fibers or particles, used in the production of e.g. coffee filters, comprises use of reactive gases released from solid storage particles
06/13/2002DE10059805A1 Method for reducing sewage sludge involves comminution of the sludge by application of ultrasound before ozone is introduced into it
06/13/2002DE10056096A1 Vorrichtung zur Bestrahlung von Flüssigkeiten Device for irradiating fluids
06/13/2002CA2430833A1 Concentrated aqueous bromine solutions and their preparation
06/12/2002EP1213303A2 Rubber derivatives and method for their preparation
06/12/2002EP1213048A1 Method of potting fiber membranes
06/12/2002EP1212279A2 Purification of aromatic diacids
06/12/2002EP1212261A1 Device and method for treating liquid manure
06/12/2002EP1212149A1 Soil and/or groundwater remediation process
06/12/2002EP0914195B1 Method for separating a catalyst by membrane electrodialysis
06/12/2002EP0800407B1 Method and apparatus for treatment of fluids
06/12/2002EP0733024B1 Regenerator for oxidation and cleaning of a liquid
06/12/2002CN2494924Y De-aeration softening one-step treatment apparatus for feed-water
06/12/2002CN2494825Y Liquid magnetic procesisng apparatus
06/12/2002CN2494824Y Flooring double-cylinder scale-removing water purifying machine
06/12/2002CN2494823Y Pressureless container hollow fibre filtering water purifier
06/12/2002CN2494822Y Secondary reverse osmosis water purifier
06/12/2002CN1353228A Disinfecting and cleaning system using ozone and air bubbles for inner surface of water pipeline
06/12/2002CN1353090A Process and apparatus for treating waste acidifying liquid in oil field
06/12/2002CN1353089A Acidifying and self-extraction process for treating waste alkali solution of octanol
06/12/2002CN1353088A Electrochemical process for treating waste dye liquid
06/12/2002CN1086181C Process for preparing cationic high-molecular flocculant
06/12/2002CN1086180C Process for treating waste paper-making liquor
06/12/2002CN1086179C Solidified water making method
06/11/2002US6404111 Device for degerminating water passing through a sanitary device
06/11/2002US6403726 Water soluble polymer containing dithiocarbamate functionalities
06/11/2002US6403177 Use of tetraphenylborate for extraction of ammonium ions and amines from water
06/11/2002US6403031 Method for mineralization of organic pollutants in water by catalytic ozonization
06/11/2002US6403030 Ultraviolet wastewater disinfection system and method
06/11/2002US6402966 Oxidizing with ozone to produce oxalic acid, esterification to an oxalate, and separation
06/11/2002US6402965 Tube lined with a piezoelectric transducer for destroying microorganisms, algae, and larvae
06/11/2002US6402964 Sterilizing device for a medium, preferably water
06/11/2002US6402960 Divinylbenzene-styrene resin with pendant thiacrown group; cost-effective water pollution control
06/11/2002US6402957 Bromine biocide removal
06/11/2002US6402956 Pressure vessel
06/11/2002US6402955 Method for operating a membrane filter having a gas discharge cleaning means
06/11/2002US6402952 Apparatus and method for extraction of chemicals from aquifer remediation effluent water
06/11/2002US6402949 Portable water filtration system
06/11/2002US6402945 Water treatment system and method
06/11/2002US6402944 Water softener control valve with removable seal stack
06/11/2002US6402932 Using electrolytic cell
06/11/2002US6402920 Concentrating compartment and spacer construction for electrodeionization apparatus
06/11/2002US6402917 Purifying water
06/11/2002US6402916 Applying electrical potentials
06/11/2002US6402897 Tanks; preheating by heat exchanging; water
06/11/2002US6402855 Settling enclosure; pumps
06/11/2002US6402818 Degassing a liquid with a membrane contactor
06/11/2002US6401547 Device and method for measuring fluid and solute fluxes in flow systems
06/11/2002CA2271598C Modular home dialysis system
06/11/2002CA2156439C Urea-surfactant clathrates and their use in bioremediation of hydrocarbon contaminated soils and water
06/11/2002CA2030674C Disinfecting a fluid with ultraviolet radiation
06/06/2002WO2002045192A2 Method for mineralizing water using a fuel cell system
06/06/2002WO2002044625A1 Humidifying method and apparatus using silver ionized water
06/06/2002WO2002044481A1 Device for conveying raw water or industrial water
06/06/2002WO2002044309A2 Detergent
06/06/2002WO2002044094A1 Process for enhancing the efficiency of wastewaster purification and decreasing the demand of reagent
06/06/2002WO2002044093A2 Flocculation of mineral suspensions
06/06/2002WO2002044092A1 Novel cells and electrodes for electrocoagulation treatment of wastewater
06/06/2002WO2002044091A2 A method for the purification of water by means of filtration using a micro or ultra filtration membrane
06/06/2002WO2002044090A1 Method for the flotation of water
06/06/2002WO2002044089A2 Methods, apparatus, and compositions for controlling organisms in ballast water
06/06/2002WO2002044088A2 An adsorptive-filtration media for the capture of waterborne or airborne constituents
06/06/2002WO2002043857A1 Miniature apparatus for delivering electromagnetic energy into a solution
06/06/2002WO2002043847A1 Method, module and device for contacting a gas and a liquid
06/06/2002WO2002043829A2 Method and device for continuously treating waste water of industrial origin by water vapour stripping
06/06/2002WO2002043782A1 Microorganism neutralization device and method
06/06/2002WO2002043777A2 Appliances having uv disinfection device and method
06/06/2002WO2002026367A3 Apparatus and method for increasing oxygen levels in a liquid
06/06/2002WO2002022229A3 Systems and methods for gas exchange and/or organic separation from fluids
06/06/2002WO2002015693A9 Synergistic biocidal composition
06/06/2002WO2002002464A3 Chemical extraction process
06/06/2002US20020068676 Methods for centrifugally separating mixed components of a fluid stream
06/06/2002US20020068673 Methods for centrifugally separating mixed components of a fluid stream under a pressure differential
06/06/2002US20020066717 Apparatus for providing ozonated process fluid and methods for using same
06/06/2002US20020066698 Water filtration system and vessel
06/06/2002US20020066399 Method and apparatus for delivering ozone to ballast tanks
06/06/2002US20020066171 Methods and devices for producing solid subassemblies of fluidic particulate matter
06/06/2002DE10157355A1 Apparatus for disinfecting nondrinking water by means of UV radiation comprises a UV light guide provided with radiation outlet points within the water delivery line
06/06/2002DE10066033A1 Verfahren und Vorrichtung zum Entsalzen von Wasser Method and apparatus for desalinating water
06/06/2002DE10057347A1 Process for decontaminating drinking water containing heavy metals, arsenic and their compounds comprises oxidizing out the impurities during electrolysis, binding to form flocks, and removing the flocks and water
06/06/2002DE10055785A1 Aerator for feeding large and small diameter air bubbles into waste water has elastomeric sleeve with slits, through which air emerges, on support with rectangular cross-section, larger sides of rectangle being very much larger than shorter
06/06/2002DE10054222C1 Method for washing screenings from waste water treatment comprises placing in washer of pure water, coarse filtration, recycling filtered mixture, feeding product to press, removing pressed screenings; and recycling water
06/06/2002CA2436787A1 Cleaning agent
06/06/2002CA2430424A1 Novel cells and electrodes for electrocoagulation treatment of wastewater
06/06/2002CA2429476A1 Flocculation of mineral suspensions
06/05/2002EP1210969A1 Electrodialysis cell with self-supporting membrane
06/05/2002EP1210555A1 Heat temperature raising system
06/05/2002EP1210299A2 Method of producing hydroxyl radicals for chemical reactions
06/05/2002EP1210298A1 System for operation of multiple membrane filtration assemblies
06/05/2002EP1210296A1 Fluid treatment system and cleaning apparatus therefor
06/05/2002EP1210172A1 Organic colloidal dispersion of a rare earth compound monocrystalline particles
06/05/2002EP1210162A1 Ion-removal from water using activated carbon electrodes
06/05/2002EP1209986A1 Metal-containing compositions, preparations and uses
06/05/2002EP1135331B1 Method for obtaining ammonia from waste water containing nh 3? and acid gases
06/05/2002EP1067973A4 High-strength-electric-field pumpable-food-product treatment in a serial-electrode treatment cell
06/05/2002EP1027291B1 Method and system to increase the quantity of dissolved gas in a liquid and to maintain this increased quantity until utilized
06/05/2002EP0829010B1 Method to monitor and control processes with on-line quartz crystal microbalance sensors