Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
02/2002
02/14/2002US20020018741 Doped titanium dioxide
02/14/2002US20020017498 Water treatment
02/14/2002US20020017497 Drinking water filter slidably disposed within a sleeve, which acts as a prefilter to remove components that would otherwise reduce the life; attached to a refrigerator
02/14/2002US20020017496 Polluted air contacted with chlorine containing air, under light irradiation; functional water formed by electrolysis to effect regeneration and again fed to the chlorine generation region
02/14/2002US20020017495 Water softening device
02/14/2002US20020017494 Potable water treament system and method of operation thereof
02/14/2002US20020017483 Mobile floating water treatment vessel
02/14/2002US20020017463 Method and apparatus for integrated water deionization, electrolytic hydrogen production, and electrochemical power generation
02/14/2002DE10132315A1 Reclamation of waste cooking oil comprises treatment with alkaline reducing water produced by electrolysis
02/14/2002DE10038002A1 Assembly to purify sea water and contaminated water uses solar energy to evaporate water which is condensed and passed through a number of filter towers before release into the water supply system
02/14/2002CA2420647A1 Method and device for in-situ groundwater decontamination
02/14/2002CA2418390A1 Method and apparatus for treating ammonia-containing effluent
02/14/2002CA2418019A1 Thermal water treatment
02/14/2002CA2417965A1 A plant for purifying water contaminated by droplets of hydrocarbonaceous liquid
02/13/2002EP1179841A2 Graphical User Guidance Method and Apparatus for the Optical Measurement of Layers and Substrates and Software
02/13/2002EP1179627A1 Fiber capable of forming metal chelate, process for producing the same, method of trapping metal ion with the fiber, and metal chelate fiber
02/13/2002EP1179508A1 A method and a device for treatment of liquids
02/13/2002EP1179367A1 Chelate-forming porous hollow fiber membrane and method for the recovery of germanium oxide with the same
02/13/2002EP1178948A1 Method and device for cleaning and disinfecting treatment of water
02/13/2002EP1178947A2 Water-processing domestic appliance with assembly for de-ionizing water
02/13/2002EP1178946A1 Method for removal of nano-sized pathogens from liquids
02/13/2002EP1067996A4 Filter constructions and methods
02/13/2002EP1032473B1 Device and method for separating a heterogeneous mixture
02/13/2002EP0946239B1 The use of infrared radiation in detection methods to defoam aqueous systems
02/13/2002EP0871525B1 Liquid medium extraction purification method
02/13/2002EP0800622B1 Compressor installation
02/13/2002CN2476546Y Ozone type water purifier
02/13/2002CN2476545Y Integral generation device for generating ozone water
02/13/2002CN2476544Y Magnetizing device for water
02/13/2002CN2476543Y Quantum resonance magnetizing water producing device with hexagonal screw diversion pipe
02/13/2002CN2476542Y Photoelectric source seawater cleaning device
02/13/2002CN2476541Y Machine for recovery waste water of grinding integrated circuit board
02/13/2002CN2476279Y Electric heating magnetic massage foot basin
02/13/2002CN1335907A Method and device for recovering liquid substance
02/13/2002CN1335750A Biocide composition and sterilization method using the same
02/13/2002CN1335428A Paper-making effluent treating process
02/13/2002CN1335272A Ecological mineral solution and its prepn
02/13/2002CN1335271A Formaldehyde-containing effluent treating process
02/13/2002CN1335270A Water purifier and its prepn
02/13/2002CN1335269A Compound oil-bearing effluent flucculant
02/13/2002CN1335268A Slag returning process of raising the amount of treated industrial effluent in coal-water fluid method
02/13/2002CN1335267A High-concentration industrial effluent treating method with coal slime
02/13/2002CN1079084C Method for preventing heating water of boiler from illegal using
02/13/2002CN1079082C Automatic controller for PH value
02/13/2002CN1079081C Composition for sewage treatment
02/13/2002CN1079032C Flocculant and its producing method
02/12/2002US6346206 Oxygen scavenger and boiler water treatment chemical
02/12/2002US6346201 Ozonated solutions of tetrasilver tetroxide
02/12/2002US6346198 System for fluid stream treatment using feed forward of analysis of a diverted treated pilot stream
02/12/2002US6346197 Water and wastewater treatment system and process for contaminant removal
02/12/2002US6346195 Ion exchange removal of metal ions from wastewater
02/12/2002US6346187 Passing fluid through open channel between electrodes of battery of electrochemical cells operating at positive polarity, interrupting to electrostatically regenerate battery, passing fluid through battery at negative polarity
02/12/2002US6346069 Centrifugal pressurized separators and methods of controlling same
02/12/2002US6345657 Pneumatic radial tires for trucks and buses mounted on 15 degree drop center rim
02/12/2002US6345632 A section of the system is isolated and chemically cleaned, then is immediately passivated using a high concentration of passivating agent.
02/12/2002CA2318431C Water sanitizing system
02/12/2002CA2083940C Method of treating lake water with aluminum hydroxide sulfate
02/12/2002CA2048935C Biocidal compositions and use thereof
02/11/2002CA2354936A1 A method and a device for treating liquids
02/07/2002WO2002010508A1 Processes of reducing contamination from cellulosic suspensions
02/07/2002WO2002010105A1 Method of treating fluorine compound and treated substance
02/07/2002WO2002010104A1 Method of treating fluorine compound
02/07/2002WO2002010077A1 Method and apparatus for treating wastewater using membrane filters
02/07/2002WO2002010076A1 Ballast water treatment
02/07/2002WO2002010075A1 Composition for the neutralisation of inorganic and organic strong acids
02/07/2002WO2002010074A1 Chemical feeder
02/07/2002WO2002010073A1 Method for floatation separation of a liquid, from particles suspended therein
02/07/2002WO2002010071A2 A process and an apparatus for extracting potable water from a brine
02/07/2002WO2002010061A1 Liquid cooling system
02/07/2002WO2002009850A2 Method and apparatus for transferring heat and moisture using water-and-ion conducting membranes
02/07/2002WO2002009838A1 Distillation method and device in particular for seawater desalination or for food liquid concentration
02/07/2002WO2002009837A1 Device for distilling a medium
02/07/2002WO2002009774A1 Ultraviolet fluid disinfection system and method
02/07/2002WO2002009521A2 Method of preparing a biocidal concentrate
02/07/2002WO2001085313A3 Improved electrodeionization module
02/07/2002WO2001083376A3 Method of reducing contaminants in drinking water
02/07/2002WO2001072343A8 Decontamination of soil and groundwater
02/07/2002WO2001051867A3 Tubular oven
02/07/2002WO2001044120A3 On premise water treatment system with temperature control water release and method
02/07/2002US20020014464 Pumping contaminated water through a particulate filter; pumping the filtered contaminated water through a contact chamber containing copper wool and brass wool for controlling biological and algae contaminants in water
02/07/2002US20020014463 Method and composition for cleaning and maintaining water delivery systems
02/07/2002US20020014461 Used to filter and treat contaminants in water
02/07/2002US20020014460 For the control of scale, corrosion and biofilm in a water system using electronic oxidation and ionization with side-stream filtration
02/07/2002US20020014456 Methods for purifying a solvent
02/07/2002US20020014410 Amperometric sensor probe for an automatic halogen control system
02/07/2002US20020014400 Treatment of liquids
02/07/2002US20020014178 Biocide compositions and methods and systems employing same
02/07/2002US20020014152 Apparatus for treating gas containing substance to be decomposed and method of treating its gas
02/07/2002DE10045227C1 Membrane filter for water treatment uses capillary membrane fibre bundle projecting into untreated water and fitting into permeate collection space at opposite end
02/07/2002DE10036465A1 Distillation of brine, especially sea water, comprises heating brine, removing steam and also periodically removing salt concentrate
02/07/2002DE10036043A1 Second biological stage for water purification replacing chemical removal of phosphorus and nitrogen compounds comprises adding phytoplankton which is then killed by irradiating with UV, removed by sedimentation and composted
02/07/2002DE10034750A1 Computer-controlled, electromagnetic modification of kinetics of organic and inorganic processes, e.g. cell growth, comprises subjecting liquid, at given or controllable temperature, to fluctuating electromagnetic field
02/07/2002DE10015402A1 System for recovering drinking water and hydrogen comprises using part of electrical current for supplying household or commercial business and remainder for recovering hydrogen by electrolysis
02/07/2002CA2417397A1 Chemical feeder
02/07/2002CA2416252A1 Processes of reducing contamination from cellulosic suspensions
02/07/2002CA2388004A1 Liquid cooling system
02/06/2002EP1178017A2 Method for water denitrification
02/06/2002EP1178016A1 Method and compositions for treating recirculating water systems
02/06/2002EP1178015A1 Stand alone water purifier
02/06/2002EP1178014A1 Process for treating chromate waste liquid