Patents
Sitemap › C02 - Treatment of water, waste water, sewage, or sludge › C02F - Treatment of water, waste water, sewage, or sludge › C02F 9 - Multistep treatment of water, waste water or sewage
Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429)
10/2003
10/01/2003CN1122645C Process for recovering waste rare-earth water and fully cyclic treatment
10/01/2003CN1122642C Process for treatment of liquid and apparatus thereof
09/2003
09/30/2003US6627087 Method of removing lead from water using a high molecular weight cationic dispersion polymer
09/30/2003US6627053 Water treatment device
09/25/2003WO2003078334A1 Fresh water treatment plant and method for obtaining drinking water
09/25/2003WO2003078328A1 Water purification apparatus
09/25/2003WO2003078017A1 Leachate and wastewater remediation system
09/25/2003US20030178372 Pretreatment with thickener
09/25/2003US20030178356 Removable closure assembly for a water treatment system
09/24/2003EP1346953A1 High-purity water producing apparatus
09/24/2003EP1345857A1 Reclaiming water and usable brine concentrate from domestic sewage
09/24/2003EP1090151B1 Process for separation of heavy metals from residues by use of of ethylenediamine-disuccinic acid (edds) complexant
09/24/2003EP0962582B1 Metal chelate forming fiber, process for preparing the same, and method of metal ion sequestration using said fiber
09/24/2003CN2575093Y Pipe cut-of processing apparatus
09/23/2003US6623709 Continuous pressure on the reagent bed causes the bed to compact as it erodes when purified water is passed through the housing; ensures complete and even dissolution of the reagents.
09/23/2003US6623643 Using a degradation-enhancing reactant, e.g. an oxidizing agent, to increase the rate of degradation of polymers such as polyvinyl alcohol to prevent problems in the sewer system with their disposal
09/23/2003US6623615 Electrolytic hydrogen dissolved water and method and apparatus of production thereof
09/18/2003WO2003076342A1 Water filter and treatment system and component
09/18/2003WO2003076340A2 Method and installation for producing ultrapure water
09/18/2003WO2003076044A1 Multiple barrier filter apparatus
09/18/2003WO2003076043A1 Swivelling filter head assembly
09/18/2003US20030173306 Process and system for treating waste from the production of energetics
09/18/2003US20030173305 Chemical treatment methods and apparatus
09/18/2003US20030173300 Leachate and wastewater remediation system
09/18/2003US20030173282 High-purity water producing apparatus
09/18/2003US20030173273 Water treatment device with volumetric and time monitoring features
09/18/2003US20030173212 Electrolytic bath equipped with a waterway converter for ionized water producer
09/18/2003CA2477939A1 Multiple barrier filter apparatus
09/17/2003EP1343923A2 Electrochemical apparatus with retractable electrode
09/17/2003EP1268095B1 Method for depollution of soils polluted by hydrocarbons
09/17/2003EP1167306B1 Equipment for purifying residual waters from horticulture and pomology centers and in situ phytosanitary treatment
09/17/2003CN1443141A Method for processing lignocellulosic material
09/17/2003CN1442377A Unpowered treatment method of domestic sewage and organic waste water
09/16/2003US6620329 Golf course irrigation water monitoring and treatment system
09/16/2003US6620327 Filtration, dissolved air floatation, centrifugation, semipermeable nanofiltration, reverse osmosis, and continuous deionization for separating ethylene glycol, propylene glycol, and water
09/16/2003CA2293966C Water filtering system with replaceable cartridge for a refrigerator
09/12/2003WO2003074430A1 Nitrate removal
09/12/2003WO2003074428A2 Pre- and post-treatment system and method for periphyton filtration using ozone
09/11/2003US20030170878 Method and apparatus for the treatment of biological suspensions
09/11/2003US20030168411 Treating a nitrogen compound and a phosphorus compound in for-treatment water by electrochemical procedure, adding calcium chloride to the for-treatment water and a step of immersing an iron material in the for-treatment water
09/11/2003US20030168394 Swivelling filter head assembly
09/11/2003US20030168389 System for monitoring the performance of fluid treatment cartridges
09/10/2003EP1341727A1 Water purifying kits
09/10/2003CN2571750Y Equipment for producing pipe provided direct drinking purified water
09/10/2003CN2571749Y Lysine waste water purifier
09/10/2003CN1440941A Anaerobic moleculer decomposing method of refuse percolate
09/10/2003CN1440940A Combined sewage purifying treatment method
09/10/2003CN1440939A Gravity flow complex sewage purifying method
09/10/2003CN1120808C Bottle water disinfection system
09/09/2003US6616851 System and method for treating water circulating in open-circuit cooling systems
09/09/2003US6616850 Water filter and method
09/09/2003US6616844 Anaerobic ammonium oxidization; denitrification via activated microorganisms within soil/livestock wastewater
09/09/2003US6616839 Portable water treatment facility
09/09/2003US6616833 Ship-board system for decontaminating wastewater contaminated by firefighting operations
09/04/2003WO2003073029A1 Portable, potable water recovery and dispensing apparatus
09/04/2003WO2003072510A1 Under the counter water treatment system
09/04/2003WO2003072220A1 Quick change filter and bracket system with key system and universal key option
09/04/2003WO2002096807A3 Electrodeionization apparatus and method
09/03/2003EP1265819B1 Method and device for effluent treatment
09/03/2003CN2570266Y Sewage treating equipment
09/03/2003CN2570265Y Water purifying filter
09/03/2003CN1440340A Washing and recycling unit and method for on-site washing of heavy machinery
09/03/2003CN1439611A Urban sewage treatment
09/02/2003US6614039 Hermetically sealed ultraviolet light source
09/02/2003US6613217 Electrocoagulation chamber and method
08/2003
08/28/2003WO2003071568A2 Starter assembly for a gas discharge lamp
08/28/2003WO2003070645A1 Apparatus and method for the treatment of a contaminated fluid
08/28/2003WO2003070643A1 Water treatment system
08/28/2003WO2003070639A1 Preparation of waste water containing sodium chloride for use in chlor-alkali electrolysis
08/28/2003WO2003070352A1 Removable closure assembly for a water treatment system
08/28/2003WO2003070351A1 System for monitoring the performance of fluid treatment cartridges
08/28/2003WO2003043939A3 Method and apparatus for the treatment of particulate biodegradable organic waste
08/28/2003US20030160006 Water pollution control; removal impurities
08/28/2003US20030159987 Water pollution control using plants
08/28/2003US20030159977 Filter integrity testing system and method, and water purification system comprising same
08/28/2003US20030159457 Production of potable water and freshwater needs for human, animal and plants from hot and humid air
08/28/2003CA2475196A1 Starter assembly for a gas discharge lamp
08/27/2003EP1337478A2 Process and apparatus for treating wastewater
08/27/2003EP1337309A1 Method and apparatus for processing wet material
08/27/2003CN2568642Y Sewage biochemical treatment appts.
08/27/2003CN2568641Y Sleeve type sewage treatment appts.
08/27/2003CN2568640Y Assembling filter element of water purifier
08/27/2003CN2568639Y Water purifier
08/27/2003CN1438972A Water treatment compositions
08/27/2003CN1438188A Method for removing organic matter from super-pure water by 185 nano ultraviolet light and film de-airing combination
08/27/2003CN1438187A Comprehensive treatment method for mixed waste water containing chromium and heavy metal
08/27/2003CN1438186A Technology for treating waste liquide from paper-making by waste paper
08/27/2003CN1438175A Method for preparing sodium metasilicate by discharched waste liquid from production of zirconium oxychloride
08/27/2003CN1119298C Technique for treating waster water from production of chitin
08/27/2003CN1119293C Multipolar-type electrolytic bath and apparatus for purifying waste and contaminated water using the same
08/21/2003WO2003068693A2 Processes for treating iron-containing waste streams
08/21/2003WO2003068686A2 Water filters and processes for using the same
08/21/2003US20030155869 Starter assembly for a gas discharge lamp
08/21/2003US20030155308 Flocculation, precipitation, filtration
08/21/2003US20030155306 Mixing with flocculant polymer; aeration, rotaty skimming; gravity separation, flotation
08/21/2003CA2456226A1 Water filters and processes for using the same
08/20/2003EP0891302B1 Process for the biological purification of waste water
08/20/2003EP0853651B1 Cleaning compositions for oil and gas wells, lines, casings, formations and equipment and methods of use
08/20/2003CN2567209Y Rotein decomposing apparatus of hanging on fishbowl type
08/20/2003CN2567208Y Ion water generating device with far-infrared rare earth magnetization purifying filter cylinder
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