Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
07/2003
07/17/2003WO2003057351A1 Method of using water soluble polymers in a membrane biological reactor
07/17/2003WO2003033033A3 Method and device for the through-flow sterilisation of liquids
07/17/2003WO2003018180A3 System and method for withdrawing permeate through a filter and for cleaning the filter in situ
07/17/2003WO2002048431A3 Electrochemical apparatus with retractable electrode
07/17/2003WO2002005643A3 Biocide compositions and methods and systems employing same
07/17/2003US20030134409 Delivery vehicles for environmental remediants
07/17/2003US20030133878 Composition for the treatment of legionella pneumophila and a method for such treatment
07/17/2003US20030133864 Method and apparatus for supplying carbon dioxide to a plurality of applications, as in the processing of integrated circuits
07/17/2003US20030133354 Passing the fluid between two electrodes, a first electrode being formed of a metal having dielectric covering , a second electrode being formed of a metal and being grounded, applying a direct current voltage to first eelctrode
07/17/2003US20030132848 Method and system for anticipating salt depletion
07/17/2003US20030132717 Ballast device for uv emitter and method and device for disinfection of water
07/17/2003US20030132421 Elixir for inducing high-speed settlement of precipitates
07/17/2003US20030132250 Treated water dispensing system
07/17/2003US20030132174 Ceramic filter and method for purifying water
07/17/2003US20030132173 Process and compositions for the disinfection of waters
07/17/2003US20030132172 Titanium and copper or silver electrodes connected to a direct current power supply with control means for cyclically alternating the polarity of the output
07/17/2003US20030132171 Method for removing radioactive substances from affecting water wells
07/17/2003US20030132167 Pump controlled by a measuring device and a proportioning device to add a chemical in proportion to the water to form a water line
07/17/2003US20030132166 Method of treating mine drainage
07/17/2003US20030132165 Neutralize or prevent the growth of and/or remove a certain number of undifferentiated animal cells, tumor cells, algae, bacteria or viruses from a sample with high-frequency ultrasound emission
07/17/2003US20030132163 Aqueous stream purifier and method of use
07/17/2003US20030132160 Membrane biotreatment
07/17/2003US20030132155 Arsenic removal from aqueous media using chemically treated zeolite materials
07/17/2003US20030132148 Wastewater purifying apparatus
07/17/2003US20030132124 Nitrogen treating method
07/17/2003US20030132104 Hydrogen-dissolved water production apparatus
07/17/2003US20030132097 Fuel-cell powered desalination device
07/17/2003US20030132096 Rotating heat exchanger
07/17/2003US20030132095 Device and method for distilling water
07/17/2003US20030131641 Method for producing a humin-mineral concentrate and device for carrying out said method
07/17/2003DE20306503U1 Assembly to neutralize acid water, from an open cast mining lake, has a dosing station to apply liquid/solid neutralizing agents, with a pump and distribution system to treat all water zones before release
07/17/2003DE20304952U1 Mobile appliance to disinfect water at open-air events comprises a water flow pipe with a flow meter, to control dosing pump to add disinfectant according to the water flow
07/17/2003CA2486835A1 Method of using water soluble polymers in a membrane biological reactor
07/17/2003CA2415997A1 Germicidal lamp and purification system having turbulent flow
07/16/2003EP1327641A1 Polymeric flocculant and method of sludge dehydration
07/16/2003EP1327608A1 Apparatus and method for electrolytic treatment of waste water
07/16/2003EP1326805A1 Device for electrolytic water disinfection without cathodic hydrogen evolution
07/16/2003EP1326713A2 Flotation device
07/16/2003EP1326702A2 Method and apparatus for separating mixtures of organic and aqueous liquid phases
07/16/2003EP1326691A1 Installation for measuring concentration in dense granular material of a flow and water treatment system comprising same
07/16/2003EP0989958B1 Nitrate reduction
07/16/2003CN2560860Y Fluid activating device
07/16/2003CN2560635Y Variable aperture lattice floculating apparatus
07/16/2003CN2560634Y Efficient rectangle pipe chute and efficient combined tube settler
07/16/2003CN2560633Y Microvortex folded plate floculating reaction tank
07/16/2003CN2560632Y Electromagnetic water purifier
07/16/2003CN2560631Y Magnetized pad
07/16/2003CN2560630Y Anticorrosive water treater
07/16/2003CN2560629Y Full-process water treater
07/16/2003CN2560628Y Domestic central water purifying machine
07/16/2003CN2560627Y Vortex speed-increasing, ultraviolet sterilizing and algae-destroying liquid treater
07/16/2003CN2560626Y Efficient mud water separating and filtering integrating sewage treating apparatus
07/16/2003CN2560625Y Jet pump dissolved air floatation machine
07/16/2003CN2560624Y Spiral grille machine
07/16/2003CN1430583A Method and apparatus for treatment of biological suspensions
07/16/2003CN1430581A Method and device for continuous electrolytic disposal of waste liquid
07/16/2003CN1430580A 液体清洁装置 Liquid cleaning device
07/16/2003CN1429779A Method of treating industrial waste water by actived sludge-micro-electrolytic process
07/16/2003CN1429776A Ozone treatment device of water cleaning system
07/16/2003CN1429775A Decolouring method of printing and dyeing waste water
07/16/2003CN1429774A Alloy electrochemical battery device
07/16/2003CN1429773A Method of treating oil field waste water by electric-multiphase catalytic reaction and its special equipment
07/16/2003CN1114762C Compressor system
07/16/2003CN1114472C Method for producing polyamide reverse osmosis composite film
07/16/2003CN1114463C Process for treating waste water of flue gas desulfurization
07/15/2003US6593704 Method and ballast for feeding a UV light low pressure radiator
07/15/2003US6593271 For the removal of cationic forms of group IA, IIA, IIIA, IVA, VA, IB, IIB, IIIB, IVB, VB, VIIB, and group VIII metals from aqueous or non- organic media
07/15/2003US6592982 Flexible graphite capacitor element
07/15/2003US6592861 Antiseptics
07/15/2003US6592767 Occurring in the biological treatment of aqueous organic wastes; plurality of ozone treating reactors in series, agitation of the biosludge under a pressurized condition
07/15/2003US6592766 Water treatment dispensers
07/15/2003US6592763 Method and device for treating aqueous flows in a bioreactor, an ultrafiltration unit and a membrane filtration unit
07/15/2003US6592761 Biological waste water treatment system
07/15/2003US6592751 Device for treatment of wastewater
07/15/2003US6592727 Production apparatus of hypochlorite solution
07/15/2003US6592656 Water apparatus for treating industrial waste products
07/15/2003CA2068571C Method for removing paint solids from water-based paint systems using aluminum salts
07/10/2003WO2003055888A1 Hydroxycucurbituril derivatives, their preparation methods and uses
07/10/2003WO2003055810A1 Compact water treatment device
07/10/2003WO2003055806A1 Electrolytic device and method for disinfecting water in a water supply system by means of the generation of active chlorine
07/10/2003WO2003055604A1 Electric demineralization apparatus
07/10/2003WO2003055593A1 Adsorbing material comprised of porous functional solid incorporated in a polymer matrix
07/10/2003WO2003055592A1 Device for modifying liquid material using photocatalytic titanium oxide particles, and gas device using powdery particles comprising photocatalyst and coating material
07/10/2003WO2003055591A1 Field converter and fluid processing device using the converter
07/10/2003WO2003055578A1 Solution and method for scavenging sulphur compounds
07/10/2003WO2003055571A1 Magnetic fluid filter
07/10/2003WO2003055452A1 Hybrid organic-inorganic adsorbents
07/10/2003WO2002088031B1 Reclamation system for agricultural runoff
07/10/2003US20030129105 Quartz sleeves; ultraviolet lamps; uniform fluid flow
07/10/2003US20030128797 Method for treating power plant heater drain water
07/10/2003US20030127400 Water treatment process for thermal heavy oil recovery
07/10/2003US20030127399 Process for disposing biocide-containing cooling water
07/10/2003US20030127398 Device for treating water
07/10/2003US20030127397 Roasting rocks; crushing; forming carbon dioxide; flocculation; precipitation
07/10/2003US20030127393 Aluminum hydroxide fibers; purification, sterilization of aqueous solution
07/10/2003US20030127392 Eluent purifier and method of use
07/10/2003US20030127391 Antifouling agents, antiscaling agents, corrosion resistance;controlling filter membrane flux
07/10/2003US20030127389 Aerator connecting to air blower; valves; controllers; alternating gas flow
07/10/2003US20030127388 Treatment system having spiral membrane element and method for operating the treatment system
07/10/2003US20030127387 Extraction; cyclone separators