Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
12/2001
12/13/2001DE10028547A1 Method of separating surfactants from wash waters comprises passing wash water through a column of adsorbent at constant temperature, and desorbing the surfactants by rapidly altering the temperature
12/13/2001DE10026592A1 Waste water sludge separator for separating sinking and floating particles from sludge has separator stage, separator container and collector container linked via shut-off valve
12/13/2001CA2411861A1 Water filtering device
12/13/2001CA2409386A1 Treatment of circulating water systems
12/13/2001CA2381447A1 Water purifying device
12/12/2001EP1162179A1 Photocatalytic process
12/12/2001EP1162178A2 Process for removing cyclic acetals from wastewater streams
12/12/2001EP1162177A1 Electrostatic fluid purifying device and method of purifying a fluid
12/12/2001EP1162176A1 Electrolyzed water of anode side and process for production thereof
12/12/2001EP1162172A1 Silica gel carrying titanium oxide photocatalyst in high concentration and method for preparation thereof
12/12/2001EP1161993A1 Production of high functional photocatalysts
12/12/2001EP1161981A2 Apparatus and method for multistage reverse osmosis separation
12/12/2001EP1161886A1 Drinks with the use of seawater and process for producing the same
12/12/2001EP1161468A1 Method and composition of a hydrophilic polymer dispersion containing an inorganic flocculant to be used for the treatment of waste water
12/12/2001EP1161402A1 Tanks for treating water used for washing motor vehicles and equipment
12/12/2001EP1161401A1 Aqueous dispersions
12/12/2001EP1161400A1 Method and apparatus for treatment of organic matter-containing wastewater
12/12/2001EP1161299A1 Improvements in and relating to complexants
12/12/2001EP1161291A1 Process for removing hydrocarbons from a liquid mixture with a regenerable filter
12/12/2001EP1135975A4 Non-thermionic ballast-free energy-efficient light-producing gas discharge system and method
12/12/2001EP1113995A4 Method of controlling biofouling in aqueous media using antimicrobial emulsions
12/12/2001EP1012122B1 Method for treating alkaline waste water
12/12/2001EP1012118B1 Device for degerminating water passing through a sanitary device
12/12/2001EP1009718B1 Device for degerminating water passing through a sanitary device
12/12/2001EP0986519B1 Biological product for maintaining water mains and purifying waste water
12/12/2001EP0961758B1 Method for the physico-chemical treatment of effluents, in particular of surface water for consumption
12/12/2001EP0889853B1 A method to solve the swelling sludge problem in waste treatment plants by controlling mycelium bacteria
12/12/2001EP0876297B1 Process for recovering purified ionic surfactants from washing solutions, in particular for washing contaminated soil
12/12/2001EP0861210B1 Use of sulfonamides for controlling biofouling
12/12/2001EP0766647B1 Photoelectrochemical reactor
12/12/2001EP0694501B1 Electrolytic purification of contaminated waters by using oxygen diffusion cathodes
12/12/2001CN2464810Y Electronic automatic disinfecting and deodorizing closet
12/12/2001CN2464807Y Electronic urine container with disinfecting and air conditioning
12/12/2001CN2464722Y Recovery reuse device for domestic sewage
12/12/2001CN2464721Y Deassembling washing dirt-discharging purifying mineralizing water processor
12/12/2001CN2464720Y Multi-stage processor for domestic waste water
12/12/2001CN2464719Y Precision filtering magntized descaler for boiler used water
12/12/2001CN2464718Y 活性水生成器 Active water generator
12/12/2001CN2464717Y Cabinet type domesitc water purifying machine
12/12/2001CN2464716Y Ceramic filtering purified water production device
12/12/2001CN2464715Y Sewage oil removing machine
12/12/2001CN2464714Y Double-chamble double-flow high speed filter
12/12/2001CN2464713Y Energy-saving sewage treating device
12/12/2001CN2464712Y Water purifying system filter box
12/12/2001CN2464711Y Freshwater circulation use device
12/12/2001CN2464418Y High-efficient flocculation separator
12/12/2001CN2464219Y Drinking-water machine without secondary pollution and capable of purifying air
12/12/2001CN2464196Y Magnetized water-drinking cup
12/12/2001CN1326524A Method of water distribution and apparatus therefor
12/12/2001CN1326512A Process for the production of hydrogen sulphide from elemental sulphur and use thereof in heavy metal recovery
12/12/2001CN1326030A 洗衣机 Washing machine
12/12/2001CN1325825A Process for preparing multi-element mineral water
12/12/2001CN1325824A Process for treating water-soluble organic pollutant
12/12/2001CN1325823A Centrifugal machine for desalinating sea water
12/12/2001CN1325620A Nutrients immobilized water
12/12/2001CN1076027C Spary-dried polymer agglomerate and use thereof
12/12/2001CN1076007C Sewage treating unit y
12/11/2001US6329435 Reacting monomer droplets of monovinylaromatic compound and polyvinylaromatic compound to give bead polymer; amidomethylating, converting to aminomethylated bead polymer, reacting with thiourea or its derivative
12/11/2001US6329165 Adding flourogenic dye directly into industrial water system, to react with planktonic or sessile microorganisms, measuring the fluorogenic dye signal and the reacted fluorogenic dye signal, determine ratio and monitor changes
12/11/2001US6328900 Water flows through the spa water circulation system the water also flows through the chamber with the water purification material to simultaneously purifiy the water and direct jets of water into the hot tub
12/11/2001US6328899 Method and apparatus for treating wastewater containing organic sulfur compounds
12/11/2001US6328898 Method of and apparatus for forming highly oxidative water
12/11/2001US6328896 Providing input stream having first chlorine concentration; irradiating input stream with an ultraviolet unit to reduce first chlorine concentration; passing first product stream through a softener unit in fluid communication
12/11/2001US6328893 Treating contaminated industrial waste water with activated sludge, pre-cleaning the treated product by subjecting same to a precipitation, subjecting the pre-cleaned product to reverse osmosis, and recirculating to operational factory stage
12/11/2001US6328884 Device for degerminating and filtering water passing through a sanitary device
12/11/2001US6328881 Water purification system and method including dispensed volume sensing and control
12/11/2001US6328875 For electropurification of contaminated aqueous media, such as ground water and wastewater from industrial manufacturing facilities like paper mills, food processing plants and textile mills; purified, decolorized and sterilized
12/11/2001US6328782 Combined supported liquid membrane/strip dispersion process for the removal and recovery of radionuclides and metals
12/11/2001CA2242331C Flocculant compositions and water treatment method using the same
12/11/2001CA2229964C Foodstuff preservations with iodinated ice
12/11/2001CA2206622C Method of disinfecting water with iodine species
12/11/2001CA2179318C Composition for treating water and sanitising soils
12/06/2001WO2001092839A2 Apparatus for detecting and measuring intensity of ultraviolet radiation
12/06/2001WO2001092652A1 Method and apparatus for preventing stagnation in fluid reservoirs
12/06/2001WO2001092607A1 Regeneration of plating baths
12/06/2001WO2001092603A1 Electrochemical reduction of nitrate in the presence of an amide
12/06/2001WO2001092167A1 Treatment of mineral materials
12/06/2001WO2001092165A1 Improved chemical treatment methods and apparatus
12/06/2001WO2001092164A1 Device for measuring doses of a reagent by dissolution in a liquid flow
12/06/2001WO2001092163A1 Device for measuring out a liquid reagent in a liquid contained in a container
12/06/2001WO2001092162A1 Treatment of effluent
12/06/2001WO2001092161A1 Method for treating liquid by creating a liquid cyclone photon interface
12/06/2001WO2001092160A1 Method and installation for treating liquid loaded with salts or impurities
12/06/2001WO2001092159A1 Method for treating and activating sea water and polluted water into drinking water
12/06/2001WO2001092152A1 Method for recuperating a metal in carbonate or hydrogenocarbonate form
12/06/2001WO2001091879A1 Sewage disposal agent, sewage purifier, washing machine with purifier, and sewage purifying method
12/06/2001WO2001091878A1 Inorganic electrolytic coagulant and method for modifying mud using said inorganic electrolytic coagulant
12/06/2001WO2001091811A1 Method of sterilizing mildews and/or fungi in the state of spores and sterilization apparatus therefor
12/06/2001WO2001053207A3 Water purification process and purification plant
12/06/2001WO2001047816A3 Method and device for purifying untreated water
12/06/2001WO2001044766A3 Optical radiation sensor system
12/06/2001WO2001044116A3 Water-processing domestic appliance with assembly for de-ionizing water
12/06/2001WO2001042144A3 Device and method for treating water with ozone generated by water electrolysis
12/06/2001US20010048916 Sustained release; bactericides, fungicides, algicides; water supplying systems
12/06/2001US20010048909 Apparatus and method for preparation of a peritoneal dialysis solution
12/06/2001US20010047965 Wastewater treatment system and method
12/06/2001US20010047964 Directing liquid into hydrocyclone to form liquid vortex having inner surface defining evacuated central portion and emitting radiation into evacuated central portion of the liquid vortex
12/06/2001US20010047956 Particle collection vessel, chemical doser, sorbent column for removing amalgam particles and/or dissolved metals such as mercury from dental effluents
12/06/2001US20010047934 Process and apparatus for eliminating dioxins
12/06/2001US20010047921 Vertical extending liquid/liquid contacting column