Patents
Sitemap › C02 - Treatment of water, waste water, sewage, or sludge › C02F - Treatment of water, waste water, sewage, or sludge › C02F 1 - Treatment of water, waste water, or sewage
Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
12/2000
12/07/2000WO2000073214A1 Denitrification process
12/07/2000WO2000073213A1 Fluid treatment system and cleaning apparatus therefor
12/07/2000WO2000073212A1 A method of removing dirt from a dirty solution, use of the method and devices able to perform this method
12/07/2000WO2000072950A1 Cellulose derivative hollow fiber membrane
12/07/2000WO2000072940A1 Filters consisting of filter paper or paper-type nonwoven material
12/07/2000WO2000072937A1 Improved injection of a solids-laden water stream into a centrifugal separator
12/07/2000WO2000072932A2 Water softener valve
12/07/2000WO2000050343A3 Treatment of solutions comprising metals, phosphorous and heavy metals obtained from dissolution of combusted waste materials in order to recover metals and phosphorous
12/07/2000DE19925646A1 Gas pressure producing material for water disinfection comprises an adsorbing highly porous (in)organic structure and a fluorinated or non-fluorinated gas
12/07/2000DE19925542A1 Verfahren zur Entfernung von organischen Peroxiden aus Prozeßwässern A process for removing organic peroxides from process waters
12/07/2000DE19925534A1 Treatment of waste waters containing (in)organic compounds involves the use of hydroxyl producers in the presence of titanium-containing silicates as catalyst
12/07/2000DE10027260A1 Turbine generator comprises cooling water system for the inside of the generator winding, water tank, pipes and injection unit for decarbonated air
12/07/2000CA2400695A1 Post-passivation of a phosphatized metal surface
12/07/2000CA2375203A1 An electro-flocculation process and apparatus
12/06/2000EP1057786A1 Process of activation and/or auto purification of industrial or domestic effluents
12/06/2000EP1057785A1 Method of treating liquid, liquid treatment apparatus, and liquid treatment system
12/06/2000EP1057784A1 Water purificaion plant
12/06/2000EP1057781A2 Process for generating recoverable sulfur containing compounds from a spent acid stream
12/06/2000EP1057527A1 Photochemical reactor
12/06/2000EP1057240A1 Method for purifying the cooling circuit of an alternator stator operating in ventilated circuit, and implementing device
12/06/2000EP1056691A1 Method and plant for the treatment of liquid organic waste
12/06/2000EP1056689A1 Method for biologically treating effluents producing little or no excess sludge including a treating step by fixed film biomass
12/06/2000EP1056687A1 Method for purifying waste water by combining hydrogen-peroxide supported oxidation with a membrane separation method
12/06/2000EP1056686A1 Process for recovering onium hydroxides from solutions containing onium compounds
12/06/2000EP1056685A1 Electrolytic cell with porous membranes to concentrate anions
12/06/2000EP1056684A1 A water filtration vessel
12/06/2000EP1056340A1 Potentiation of biocide activity using a diethanolamide
12/06/2000EP0882193A4 Adaptable control valve for fluid treatment system
12/06/2000EP0830205B1 Water treatment tablet producing potable water
12/06/2000EP0802826B1 Process and device for separating components from liquid homogenous or heterogeneous systems
12/06/2000EP0778813B1 Method for dewatering sludges
12/06/2000CN2409206Y Waste water purifier
12/06/2000CN2409205Y Water treater capable of realizing filtering and oxygenizing process
12/06/2000CN2409204Y Differential rotational flow flocculation tank
12/06/2000CN2409203Y Efficient electrolytic tank
12/06/2000CN2409202Y Cabinet-type oil-water separator
12/06/2000CN2409201Y Open draining device float with partitioned sealed cabin
12/06/2000CN2409200Y Sand filter with lining rubber
12/06/2000CN2409199Y Draining device
12/06/2000CN2408941Y Filter for mineral water producing device
12/06/2000CN1275922A Mixing apparatus
12/06/2000CN1275799A Method for making semiconductor device
12/06/2000CN1275538A Waste water treatment method and equipment
12/06/2000CN1275537A Pure water mate and preparation process thereof
12/06/2000CN1275536A Water flocculating method and device thereof
12/06/2000CN1275535A Acid/alkali electrolytic separator
12/06/2000CN1275534A Method for treatment of waste lye
12/06/2000CN1275418A Method for removing inpurity from fluid
12/06/2000CN1275417A Method for removing removed substance from fluid
12/06/2000CN1275416A Apparatus for removing removed substance from fluid
12/06/2000CN1059180C Flooding water treatment method by mixing clean water with sewage
12/06/2000CN1059073C Algaecide powder for river, lake and pool
12/05/2000US6156697 Method of producing high surface area carbon structures
12/05/2000US6156229 Stable oxidizing bromine formulations, method of manufacture and uses thereof for biofouling control
12/05/2000US6156211 Enhanced photocatalytic conversion of methane to methanol using a porous semiconductor membrane
12/05/2000US6156210 Method for treating water
12/05/2000US6156209 A protein skimmer used for aquarium water purification by allowing the introduced air bubbles to react with surrounding water molecules, which enables pollutants to gather on bubble surface and become chemically attached and then seperated
12/05/2000US6156202 Distilling pyrrole and n-methyl pyrrole, mixing 90 to 99.9 vol % distilled pyrrole and 10 to 0.1 vol % distilled n-methyl pyrrole, mixing 60 to 40 vol % alkyl acetate to 40 to 60 vol % pyrroles mixture, soaking substrate with mixture
12/05/2000US6156192 Waste treatment system
12/05/2000US6156191 Apparatus for removing selenium from refinery process water and waste water streams
12/05/2000US6156180 Porous and permeable ion exchanger containing cation exchange resin particles and anion exchange resin particles for use in deionizing aqueous liquid
12/05/2000US6156168 Electrolytic device
12/05/2000US6156075 Water treatment and pollution control
12/04/2000CA2273745A1 Fluid sterilization apparatus
11/2000
11/30/2000WO2000071805A1 Metal chelate-forming fiber, process for producing the same, method of trapping metal ion with the fiber, and metal chelate fiber
11/30/2000WO2000071783A1 Portable disinfection and filtration system
11/30/2000WO2000071600A1 Cross-linked polymers that contain condensed alkaline amino acids and method for producing said polymers
11/30/2000WO2000071476A1 Reclamation of materials in a closed environment with remedial water
11/30/2000WO2000071473A1 Fluid purifying device using physical and/or biological reactors
11/30/2000WO2000071472A1 Method of decomposing organochlorine compound
11/30/2000WO2000071471A1 Method for treatment of substantially aqueous fluids derived from processing inorganic materials
11/30/2000WO2000071470A1 Device for magnetically modifying fluid
11/30/2000WO2000071469A1 Method and installation for separating heavy metals contained in liquid effluents
11/30/2000WO2000071468A1 Fluid filtration and dispensing system
11/30/2000WO2000071467A1 Method for removal of nano-sized pathogens from liquids
11/30/2000WO2000071466A1 Method and apparatus for treating contaminated material containing animal or vegetable waste oil or the like
11/30/2000WO2000071227A1 User-activated ultra-violet water treatment unit
11/30/2000WO2000070943A1 Method for improving conditions in closed circuit fish farming
11/30/2000WO2000032520A9 Method for activating water and use of activated water of this type
11/30/2000WO2000027759A3 Process and composition for water recycle
11/30/2000DE19958775A1 Nachpassivierung einer phosphatierten Metalloberfläche Post-passivation of phosphated metal surface
11/30/2000DE19924435A1 Filter aus Filterpapier oder papierartigem Vliesstoff Remove from filter paper or paper nonwoven
11/30/2000DE19924367A1 Verfahren zur Adsorption von organischen Verbindungen und Adsorptionsmittel aus pulverförmigem Kautschuk A process for the adsorption of organic compounds and adsorbents of powdered rubber
11/30/2000DE19923796A1 Treatment of waste water for recycling within an industry, is achieved by sand filtration followed by conventional processes, with use of waste water for filter flushing
11/30/2000CA2375116A1 Method for improving conditions in closed circuit fish farming
11/30/2000CA2374219A1 Method for removal of nano-sized pathogens from liquids
11/30/2000CA2374076A1 Reclamation of materials in a closed environment with remedial water
11/29/2000EP1055651A2 System and process for treating animal waste
11/29/2000EP1055643A1 Shower apparatus
11/29/2000EP1055639A2 Ozone generator
11/29/2000EP1055448A2 Method of filtering a fluid
11/29/2000EP1055447A2 Method of filtering a fluid
11/29/2000EP1055446A2 Method of fabricating a semiconductor device with process liquid recycling
11/29/2000EP1055445A2 Apparatus for filtering a fluid
11/29/2000EP1055441A2 Method and apparatus for degassing liquids
11/29/2000EP1055440A2 Method for adsorbing organic compounds and pulverized rubber adsorbent
11/29/2000EP1054728A1 Pulsed corona discharge apparatus with radial design
11/29/2000EP1054596A1 Disinfectant compositions providing sustained biocidal action
11/29/2000EP0670815B1 Method and device for the separation of a contaminated top layer
11/29/2000EP0614333B2 Use of 1,3,5-triazine-2,4,6-tris-alkylaminocarboxylic acid derivatives as biocidal agents
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