| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 07/27/2000 | WO2000043721A1 Heat exchanger and method of purifying and detoxifying water |
| 07/27/2000 | WO2000043322A1 Sludge density measurement for controlling a sludge treatment stage |
| 07/27/2000 | WO2000043320A1 Three zone dissolved air flotation clarifier with fixed lamellae and improved paddle-and-ramp sludge removal system |
| 07/27/2000 | WO2000043319A1 Water filtration pitcher with pressure fill |
| 07/27/2000 | WO2000043138A1 Method and apparatus for purifying polluted substances containing halogenated organic compound |
| 07/27/2000 | WO2000043112A1 Membrane extraction process |
| 07/27/2000 | WO2000043096A1 Rotating process chamber with integral pump and energy recovery turbine |
| 07/27/2000 | WO2000042926A1 Polypectomy snare instrument with rotatable shaft |
| 07/27/2000 | DE19955219A1 Biological break down of sewage sludge accelerated by prior exposure to low-frequency magnetic field |
| 07/27/2000 | DE19918221C1 Domestic water filter comprises a filter insert consisting of a ring filled with hollow fiber membranes which can supply small quantities of drinking water or larger quantities of non-potable water |
| 07/27/2000 | DE19902476A1 Solar still has shallow collector sub-divided by heat-insulated cassettes and employing non-woven black fabric as heat absorbent material |
| 07/27/2000 | DE19901975A1 Rain water treated by exposure to ultra-violet light rendering suitable for grey water uses and reducing demand for mains-supplied drinking water |
| 07/26/2000 | EP1022349A1 Method for removing metals from a citric acid cleaning solution |
| 07/26/2000 | EP1022257A1 A water purification apparatus having many functions |
| 07/26/2000 | EP1022256A2 Device and process for enriching water in particular with oxygen |
| 07/26/2000 | EP1022052A2 Spiral wound type membrane element and methods of running and washing it |
| 07/26/2000 | EP1022051A2 Treatment system and treatment method employing spiral wound type membrane module |
| 07/26/2000 | EP1021379A1 Water purifying and dispensing apparatus |
| 07/26/2000 | EP1021377A1 Process and apparatus for water decontamination |
| 07/26/2000 | EP1021376A1 Method and apparatus for reduction of flow resistance in pipes and ducts |
| 07/26/2000 | EP1021375A1 System and method for photocatalytic treatment of contaminated media |
| 07/26/2000 | EP1021374A1 Photo-assisted oxidation of inorganic species in aqueous solutions |
| 07/26/2000 | EP0788464B1 Water- and chemical recycling |
| 07/26/2000 | CN2389152Y Water drinking device capable of preventing water quality from secondary contamination |
| 07/26/2000 | CN2389151Y Multi-function dirt discharging type fluid magnetizer |
| 07/26/2000 | CN2389150Y Magnetic force ball |
| 07/26/2000 | CN2389149Y Mechanical air-floated water treating apparatus |
| 07/26/2000 | CN2389148Y 太阳能纯净水发生器 Solar pure water generator |
| 07/26/2000 | CN1261331A Filter aid for clay processing |
| 07/26/2000 | CN1261059A System for desalinating sea water in deep sea |
| 07/26/2000 | CN1261058A Process for desalinizing sea water in deep sea and extracting it |
| 07/26/2000 | CN1261057A Process for purifying water |
| 07/26/2000 | CN1261056A Fluidizing photocatalytic process for degradation of organic substances |
| 07/26/2000 | CN1261055A Process for preparing water from air |
| 07/25/2000 | US6094120 Magnetizing apparatus |
| 07/25/2000 | US6093788 Separating distillate e-caprolactam/water vapor mixture from concentrated extract water containing oligomers/dimers from polycaprolactam (pa-6) reactor, catalytic depolymerization with superheated steam, further distillation |
| 07/25/2000 | US6093676 Photocatalyst-binder compositions |
| 07/25/2000 | US6093422 A mixture contains the sources of copper, zinc, and silver metal ions and a crosslinked polymer matrix for water purification, sterilization and sanitation |
| 07/25/2000 | US6093328 Arsenic and toxic organic compounds removed from drinking water or wastewaters by use of finely divided metallic iron in the presence of powdered elemental sulfur or other sulfur compounds such as manganese sulfide, followed by oxidation |
| 07/25/2000 | US6093325 Using an inorganic-based polymer, such as polyphosphazene, to separate dyes and/or other chemicals from the waste stream |
| 07/25/2000 | US6093313 Multiple discharge water faucet with self-contained filter |
| 07/25/2000 | US6093312 Ice dispenser with an air-cooled bin |
| 07/25/2000 | US6093307 Method and apparatus for separating oil from water in wastewater containing an emulsified oil |
| 07/25/2000 | US6093292 Electrolyte producing apparatus with monitoring device |
| 07/25/2000 | US6093287 Increasing water solubility and activity of chemical agents such as herbicides, pesticides and fertilizer; magnetic core having a resident permanent magnet for generating a magnetic field is applied to a fluid volume passing through device |
| 07/25/2000 | CA2085921C Structure for selectively absorbing oily contaminants and process |
| 07/25/2000 | CA2046878C Oxygen scavenger for a boiler water system and a method of removing dissolved oxygen in a boiler water system |
| 07/22/2000 | WO2000043558A1 Cyanide recovery from aqeuous ore processing solutions by solvent extraction |
| 07/20/2000 | WO2000042369A1 Apparatus for treating groundwater |
| 07/20/2000 | WO2000041975A1 Method for reducing hydrogen sulfide level in water containing sulfate-reducing bacteria and hydrogen sulfide-metabolizing bacteria |
| 07/20/2000 | WO2000041974A1 Composition and method for simultaneously precipitating metal ions from semiconductor wastewater and enhancing microfilter operation |
| 07/20/2000 | WO2000041973A1 A method of and an implement for milking animals |
| 07/20/2000 | WO2000041972A1 Process for removing organic and inorganic contaminants from phenolic stripped sour water employing reverse osmosis |
| 07/20/2000 | WO2000041971A1 Deep sea water desalination method and system |
| 07/20/2000 | WO2000041805A1 Method and membrane system for sterilizing and preserving liquids using carbon dioxide |
| 07/20/2000 | WO2000041801A1 Gas-liquid mixing device |
| 07/20/2000 | WO2000041800A1 Composite semipermeable membrane, process for producing the same, and method of purifying water with the same |
| 07/20/2000 | WO2000041793A1 Heat exchanger, in particular for preheating liquid manure |
| 07/20/2000 | WO2000041462A2 Process and apparatus for cleaning of waste water |
| 07/20/2000 | WO2000022684A3 Composite solid polymer electrolyte membranes |
| 07/20/2000 | WO1999052618A9 Filter for removing solids from liquids |
| 07/20/2000 | DE19901571A1 Verfahren zur Trennung von ammoniumnitrathaltigem Kondensat-Abwasser in zwei wiederverwendbare flüssige Anteile Process for the separation of ammoniumnitrathaltigem condensate wastewater into two reusable liquid components |
| 07/20/2000 | DE19901058A1 Removal of chemical or biological pollutants from a fluid involves irradiating a thin layer in a continuous process |
| 07/20/2000 | CA2360349A1 Process and apparatus for cleaning of waste water |
| 07/20/2000 | CA2359464A1 Process for removing organic and inorganic contaminants from phenolic stripped sour water employing reverse osmosis |
| 07/20/2000 | CA2323587A1 A method of and an implement for milking animals |
| 07/19/2000 | EP1020544A2 Reactor for electrolytic reduction of CR+6 |
| 07/19/2000 | EP1020512A2 Urea-surfactant clathrates |
| 07/19/2000 | EP1020407A2 Process for separating ammonium nitrate-containing waste water in two liquid reusable parts |
| 07/19/2000 | EP1020214A2 Purifying system for liquids |
| 07/19/2000 | EP1019341A1 Separation of pyridine or pyridine derivatives from aqueous solutions |
| 07/19/2000 | EP1019327A1 Method for eliminating a nitrogenated heterocyclic, or aromatic, compound in an effluent |
| 07/19/2000 | EP1019326A1 Method and device for treating a heavily loaded liquid effluent in particular with nitrogen and with phosphorus |
| 07/19/2000 | EP1019325A1 Process for desalination of saline water, especially sea water, having increased product yield and quality |
| 07/19/2000 | EP1019324A1 Method and device for sewage clarification |
| 07/19/2000 | EP1019192A2 Method for producing an anion-exchanging mineral and use of said mineral |
| 07/19/2000 | EP1019181A1 Fluid mixer and water oxygenator incorporating same |
| 07/19/2000 | EP1019153A1 Agent for eliminating heavy metals comprising a phosphate compound |
| 07/19/2000 | EP1019098A1 Mobile apparatus and process for treating infectious waste |
| 07/19/2000 | EP1018882A1 A method for controlling microorganisms |
| 07/19/2000 | EP1018874A4 Water treatment with hydrogen peroxide and a polyquaternary ammonium stabilizer |
| 07/19/2000 | EP1018874A1 Water treatment with hydrogen peroxide and a polyquaternary ammonium stabilizer |
| 07/19/2000 | EP0983115A4 Modular filtration systems and methods |
| 07/19/2000 | EP0781255B1 Water treatment process |
| 07/19/2000 | EP0639160B1 Apparatus for dissolving a gas into and mixing the same with a liquid |
| 07/19/2000 | CN2388193Y Automatic cleaning and sterilizing device |
| 07/19/2000 | CN2388192Y Circulating descaling water purifier |
| 07/19/2000 | CN2388191Y Device for collecting thickened oil from sewage in oil field |
| 07/19/2000 | CN2388190Y Device for pretreatment of sewage in oil field |
| 07/19/2000 | CN2388189Y Up-chain oil and slag scraper |
| 07/19/2000 | CN2388188Y Vertical vibrating centrifugal sewage treatment machine |
| 07/19/2000 | CN2388187Y Mechanical air-floating machine |
| 07/19/2000 | CN2388186Y Water-storage water purifier |
| 07/19/2000 | CN2388185Y Mineral water pot |
| 07/19/2000 | CN2388184Y Gasification, dissolving and medicine-feeding integrated device |
| 07/19/2000 | CN2387950Y Domestic magnetic water tap |
| 07/19/2000 | CN2387946Y Cold sponge iron deoxidising device |
| 07/19/2000 | CN1260779A Epsilon-caprolactam composition and by products |
| 07/19/2000 | CN1260766A Method for treating waste water containing nitrate ions |
| 07/19/2000 | CN1260765A Removal of cell growth from body of water |