Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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08/21/1997 | WO1997029995A1 Plant for production of drinking water from unfiltered water |
08/21/1997 | WO1997029994A1 Plant for purification of contaminated water |
08/21/1997 | WO1997029865A1 Apparatus for electrodialytic cleaning of products and media which contain heavy metals |
08/21/1997 | WO1997029828A1 Endless bandpass filter for micro filtration |
08/21/1997 | WO1997029636A1 Photosensitive composition |
08/21/1997 | WO1997014653A3 Process and device for recovering purified ionic surfactants from washing solutions, in particular for washing contaminated soil |
08/21/1997 | DE19606081A1 Composition for combating bacteria, algae, yeast and fungi in water |
08/21/1997 | DE19605624A1 Caustic floor cleaning wastes containing tensides pre-cleaned by centrifuge |
08/21/1997 | DE19605580A1 Collecting halogenated hydrocarbon impurities in waste water |
08/21/1997 | DE19605422A1 Verfahren zur Aufbereitung von Trinkwasser für den Verbrauch Process for the preparation of drinking water for consumption |
08/21/1997 | DE19605421A1 Purification of waste waters |
08/21/1997 | DE19602217C1 Process for treatment of waste water with denitrification |
08/20/1997 | EP0790217A1 Coagulating agent |
08/20/1997 | EP0789673A1 Methods of coagulating and decolorizing waste streams |
08/20/1997 | EP0789595A1 Synergistic biocidal combinations |
08/20/1997 | CN2260083Y Apparatus for adding chemicals or the like |
08/20/1997 | CN2260082Y High energy internal polymerizing type equipment for treating water in alternative magnetic field |
08/20/1997 | CN2259940Y Five cell type electrodialysis apparatus for removing salt |
08/20/1997 | CN1157577A Process and device for desalinating sea water |
08/20/1997 | CN1157267A Discharge apparatus for concentration water of water purifier |
08/20/1997 | CN1157266A Method for preparation of filtering purifying material for water purifier inner filter element |
08/20/1997 | CN1157265A Method and device for treating dross and greasy dirt |
08/20/1997 | CN1157264A Draining control apparatus of coldness and warmth water purifier and method thereof |
08/20/1997 | CN1157263A Method for treatment of alcohol waste liquor |
08/20/1997 | CN1157184A Wet flue gas desulfurization system |
08/19/1997 | US5659011 Agents having high nitrogen content and high cationic charge based on dicyanimide dicyandiamide or guanidine and inorganic ammonium salts |
08/19/1997 | US5659002 Reacting polymer with alkylating agent to produce a quaternized alkylated polymr; treating the waste water with above polymer to remove color by forming a complex with the color |
08/19/1997 | US5658979 Flash point stabilized tertiary aminomethylated (alk)acrylamide polymer microemulsions and method for the production thereof |
08/19/1997 | US5658873 Coated sodium percarbonate particles, a process for their production and detergent, cleaning and bleaching compositions containing them |
08/19/1997 | US5658595 Method, composition and device for the treatment of raw materials, products and production means, in particular in the foodstuffs industry |
08/19/1997 | US5658487 Dithiocarbamic acid-functional polyamine formed by reacting epihalohydrin with mixture of diamines and triamines, then modifying with carbon disulfide; for precipitation of wastewater contaminants |
08/19/1997 | US5658467 Method and composition for inhibiting growth of microorganisms including peracetic acid and a non-oxidizing biocide |
08/19/1997 | US5658458 Apparatus for removing suspended inert solids from a waste stream |
08/19/1997 | US5658457 Hydrostically driven osmotic membrane flush system for a reverse osmosis water purification system |
08/19/1997 | US5658456 Electronic reader; ?touch? memory buttons, bar codes, magnetic strips |
08/19/1997 | US5658450 Electrolysis; aeration |
08/19/1997 | US5658135 Waste water pump station |
08/19/1997 | CA2070087C Recovery of cyanide from precious metal tailings |
08/19/1997 | CA1339295C Surface active lactams |
08/14/1997 | WO1997029056A1 Process and plant for sewage treatment |
08/14/1997 | WO1997029053A1 Modified biomass for metal adsorption |
08/14/1997 | WO1997029048A1 Method and apparatus for purifying water |
08/14/1997 | WO1997029045A1 AN ACTIVATED CARBON TREATED BY CARBON DIOXIDE FOR THE STABILIZATION OF TREATED WATER pH AND THE CONTROL OF ALUMINUM IN THE TREATED WATER |
08/14/1997 | WO1997028890A1 Method to treat whey |
08/14/1997 | WO1997028889A1 Modular apparatus for the demineralization of liquids |
08/14/1997 | WO1997028881A1 Pelletized composition for treatment of storm water runoff |
08/14/1997 | WO1997028878A1 Multi-layer cartridge housing for a fluid purifier to inhibit fluid contamination |
08/14/1997 | DE3890001C2 Appts. for concentrating and processing waste liq. |
08/14/1997 | DE19604901A1 Electrolytically separating heavy metals (especially nickel@) from water |
08/14/1997 | DE19604377A1 Sulphur di:oxide smoke washer washed from the smoke and neutralised |
08/14/1997 | CA2248358A1 Process and plant for sewage treatment |
08/14/1997 | CA2245566A1 Modular apparatus for the demineralization of liquids |
08/14/1997 | CA2244824A1 Charge-modified nonwoven filter |
08/14/1997 | CA2244109A1 Method to treat whey |
08/14/1997 | CA2197525A1 Plating waste water treatment and metals recovery method |
08/13/1997 | EP0789000A1 Process for treating polluted alkaline aqueous cleaning solutions |
08/13/1997 | EP0788830A1 Mixing apparatus |
08/13/1997 | EP0788822A2 Filter for liquids |
08/13/1997 | EP0788741A1 Elimination and inhibition of bivalve mollusk attachments |
08/13/1997 | EP0788465A1 Method and apparatus for the oxidation processing of effluents in the presence of a heterogeneous catalyst |
08/13/1997 | EP0788464A1 Water- and chemical recycling |
08/13/1997 | EP0788463A1 Radiation module, its application and method for self-cleaning |
08/13/1997 | EP0788462A1 Uv fluid treatment device and method |
08/13/1997 | EP0788461A1 Heavy metal cation recovering agent including a silicate or aluminosilicate type compound and a carbonate type compound |
08/13/1997 | EP0788398A1 Filter material and process for producing no 2-free gases |
08/13/1997 | EP0788397A1 A vessel for filtering liquids, particularly drinking water |
08/13/1997 | EP0672021B1 Fluid treatment device |
08/13/1997 | EP0616603B1 Separation of heavy metals from aqueous media |
08/13/1997 | EP0603329B1 Method, composition for the treatment of raw materials, products and production means, in particular in the foodstuffs industry |
08/13/1997 | EP0588820B1 Liquid treatment |
08/13/1997 | EP0528901B1 Improved method for solute transfer between solid and liquid phases |
08/13/1997 | CN2259401Y Magnetic mineralized cup made of wood fish stone |
08/13/1997 | CN2259400Y Vertical limited aeration sewage treatment equipment |
08/13/1997 | CN2259398Y Fully-automatic electronic cleaning apparatus |
08/13/1997 | CN2259397Y Gold-bearing cyanided waste water adsorption equipment |
08/13/1997 | CN2259396Y Stepwise filtrating type multifunctional water purifier |
08/13/1997 | CN2259223Y Automatic ion exchanger |
08/13/1997 | CN1156988A Plant and process for desalting marine water by reverse osmosis, by means of hydrostatic pressure |
08/13/1997 | CN1156694A Comprehensive draining treating technique for black liquor and midcourse water from caustic soda process straw pulp paper mill |
08/13/1997 | CN1156693A Circulation filter for bathing water |
08/13/1997 | CN1156692A Ginsenoside drinking water |
08/13/1997 | CN1156691A Comprehensive utilization method for waste water and waste gas from lime process pulping papermaking |
08/12/1997 | US5656666 Visibly reducing skin wrinkles |
08/12/1997 | US5656665 Method of using quinic acid or quinolactone for treating wrinkles |
08/12/1997 | US5656490 Enzyme compositions and methods for biodegradation separation of natural fibers and adsorbed petroleum products |
08/12/1997 | US5656246 Contaminant destruction by oxidation processing via enhanced ozonation |
08/12/1997 | US5656178 Method for treatment of contaminated materials with superheated steam thermal desorption and recycle |
08/12/1997 | US5656177 Oil-in-water emulsions as substitutes for microbicides (biocides) in water carrying systems |
08/12/1997 | US5656175 Treating waste water with anionic and cationic polymeric emulsions |
08/12/1997 | US5656173 Method of removing dispersed oil from an oil in water emulsion employing aerated solutions within a coalescing media |
08/12/1997 | US5656172 Using sulforous or sulfuric acid |
08/12/1997 | US5656171 Magnetic water activating process and apparatus for reducing corrosion and lime deposits from flowing water |
08/12/1997 | US5656161 Salt basket for crystallizer and method of use in zero liquid discharge industrial facilities |
08/12/1997 | US5656160 Counter top water filter |
08/12/1997 | US5656159 Filter cartridge with integral bactericide |
08/12/1997 | US5655483 Method and apparatus for controlling zebra and related mussels using ultraviolet radiation |
08/12/1997 | CA1339285C Flocculation of coal fines with poly-electrolytes and electrolyte |
08/09/1997 | CA2197044A1 Process for removing ethers and polycyclic aromatic hydrocarbons from groundwater |
08/07/1997 | WO1997028538A1 Chemical decontamination using natural or artificial bone |
08/07/1997 | WO1997028294A1 In situ electrochemical remediation of organically contaminated soil, sediments and ground water using electrochemically generated and delivered fenton's reagent |