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)
05/2003
05/01/2003CA2462759A1 Process and means for the treatment of water in an aquaculture system
05/01/2003CA2460914A1 Complexating systems, intermediates for their production and method for obtaining and using the same
05/01/2003CA2360866A1 An apparatus for sequentially distributing liquid in more than one direction and method thereof
04/2003
04/30/2003WO2002036496A1 Method for purifying effluent water containing ammonia
04/30/2003CN2547726Y Device for treating feces, kitchen sewage, and domestic sewage
04/30/2003CN2547725Y 净水机 Water purifier
04/30/2003CN2547724Y Built coagulator
04/30/2003CN2547723Y Power-free gravity-type integrated automatic water purifying apparatus
04/30/2003CN2547722Y Community domestic sewage treating and reusing apparatus
04/30/2003CN2547721Y Multifunctionpal purified water preparation machine
04/30/2003CN2547720Y Automatic unattended middle-water filter tower system
04/30/2003CN2547673Y High-performance ferrite permanent-magnetic cup or container
04/30/2003CN1414391A Automatic correct quantitative control method of liquid treating compound
04/30/2003CN1413999A Process for preparing methylene phospho acid containing sulfo acid group
04/30/2003CN1413927A Technology and equipment for purifying process water
04/30/2003CN1413923A Method for simple using alcoholic and starch waste liquor
04/30/2003CN1413922A Pipeline-type drinking water system capable of direct drinking
04/30/2003CN1413921A Anion ceramic material for water purifying
04/30/2003CN1413920A Comprehensive treatment process technology for domestic and rivers sewage
04/30/2003CN1413919A Compound water cleansing agent for waste water treatment
04/30/2003CN1413918A Miniature water purifier and process for preparaing purified water
04/30/2003CN1413917A Water quality treatment agent and its using method
04/30/2003CN1413916A Air-floated biological treatment process and equipment
04/30/2003CN1413915A Multi-effect free falling-film plate type evaporation process for distiller's grains liquor
04/30/2003CN1413914A Method for using rejuvenated water obtained from treated alumina waste water
04/30/2003CN1413913A Methylene phosphonic carboxylic acid, its preparation process and its application in water treatment
04/30/2003CN1413775A Resource disposal method for house refuse and waste water of cities and town
04/30/2003CN1107030C Lean cyanided liquid impurity eliminating process
04/30/2003CA2427493A1 Method for purifying ammonia-containing effluent
04/30/2003CA2410149A1 Electrodeionization apparatus
04/29/2003US6555611 Adsorbent for aromatic hydroxy compound and utilization thereof
04/29/2003US6555077 Organic impurity removal process for bayer liquors
04/29/2003US6555071 Water treatment apparatus
04/29/2003US6555055 Pasteurizer receiving the water line having a heater; electrochemical hydrogen peroxide generator; electrolyzer
04/29/2003US6555011 Method for disinfecting and purifying liquids and gasses
04/29/2003US6555010 Forming colloid metal particles
04/29/2003US6555008 Aluminosilicate polymer bearing on its surface organic radicals with functions of SH or -S(CH2)nS- where n is 11-14; and a silver complexing agent that is released into an aqueous developer for silver halide photographic products.
04/29/2003US6555003 Potato wastewater treatment method
04/29/2003US6555002 Apparatus and method for wastewater treatment with enhanced solids reduction (ESR)
04/29/2003US6554998 Apparatus for lagoon remediation
04/29/2003US6554977 Electrolytic wastewater treatment apparatus
04/29/2003US6553894 Drip-type coffee-maker comprising a water treatment device
04/29/2003CA2297043C A method to remove biguanide from an aqueous source
04/24/2003WO2003033575A1 Polymer based permeable membrane for removal of ions
04/24/2003WO2003033446A1 STABILIZED o-PHTHALALDEHYDE COMPOSITIONS
04/24/2003WO2003033428A1 Recycle for supercritical carbon dioxide
04/24/2003WO2003033417A1 Titanium-group metal containing high-performance water, and its producing method and apparatus
04/24/2003WO2003033416A1 System and process for producing animal feed from food waste
04/24/2003WO2003033415A1 Process for disposing biocide-containing cooling water
04/24/2003WO2003033414A1 Magnetized water maker
04/24/2003WO2003033413A1 Apparatus for disinfecting water using ultraviolet radiation
04/24/2003WO2003033412A1 Installation used to obtain salt-free sea water at a low temperature with continuous operation and enthalpy recovery
04/24/2003WO2003033410A1 Method for treating an aqueous substance and device therefor
04/24/2003WO2003033409A1 Solidified water and its application
04/24/2003WO2003033408A2 Deactivatable biocides in ballast water
04/24/2003WO2003033402A2 Dissolved ozone generation and delivery system
04/24/2003WO2003033180A1 An appartus and process for washing, drying and sterilising industrial plants
04/24/2003WO2003033135A1 Activated carbon fiber for the removal of organochlorine compounds
04/24/2003WO2003033123A1 An assembly for circulating water in a waste water tank
04/24/2003WO2003033122A2 Apparatus for fluid purification and methods of manufacture and use thereof
04/24/2003WO2003033121A1 Process for improving the purity of quaternary ammonium hydroxides by electrolysis in a two-compartment cell
04/24/2003WO2003033114A1 Central carbon dioxide purifier
04/24/2003WO2003033033A2 Method and device for the through-flow sterilisation of liquids
04/24/2003WO2003008337A3 Apparatus and method for softening water by nanofiltration
04/24/2003WO2002098527A3 System for recirculating tangential filter concentrate
04/24/2003WO2002092514A3 Drinking water uv disinfection system and method
04/24/2003WO2002061182A3 Electrode coating and method of use in a reverse polarity electrolytic cell
04/24/2003US20030078242 Novel antiseptic derivatives with broad spectrum antimicrobial activity for the impregnation of surfaces
04/24/2003US20030077547 Eliminating microorganisms and pollutant by-products via oxidation with silver powder dispersed within colloid comprising aluminosilicate
04/24/2003US20030077365 Using 1,3-dibromo-5,5-dialkylhydantoin
04/24/2003US20030076028 Method of activating photocatalysis, photocatalytic discharge tube, and device using the same
04/24/2003US20030075513 For waste treatment
04/24/2003US20030075512 Method and apparatus for treating liquids
04/24/2003US20030075510 Purification via hyperstoichiometric addition of sodium sulfide, adhesion, filtration, then precipitation
04/24/2003US20030075509 Ion exchanging without change in hardness (via calcium, strontium and barium), includes flow magnesium chloride brine
04/24/2003US20030075505 Adsorption crossflow filitration method
04/24/2003US20030075502 Process and apparatus for treating wastewater
04/24/2003US20030075494 Apparatus for providing electrical power, fuel gas, and pure water to a building
04/24/2003US20030075490 Portable water purifier with ultraviolet light source
04/24/2003US20030075445 Bubble-free and pressure-generating electrodes for electrophoretic and electroosmotic devices
04/24/2003US20030075435 Electrolytic catalytic oxidation system
04/24/2003DE20301073U1 Filling support in funnel form used for filling filter materials in activated filter devices has hand valve which can be manually turned in few seconds to make path inside filter device free
04/24/2003DE20121768U1 Dispensing nozzle for dispensing fluids in bead form in automated dispensing system has, at exit port, internal wall surface which alternates in distance from axis between axis proximate positions and axis distal positions
04/24/2003CA2463941A1 Recycle for supercritical carbon dioxide
04/24/2003CA2463800A1 Central carbon dioxide purifier
04/24/2003CA2463425A1 Titanium-group metal containing high-performance water, and its producing method and apparatus
04/24/2003CA2463421A1 Process for improving the purity of quaternary ammonium hydroxides by electrolysis in a two-compartment cell
04/23/2003EP1304312A1 Method and device for continuous electrolytic disposal of waste water
04/23/2003EP1303666A1 Processes of reducing contamination from cellulosic suspensions
04/23/2003EP1303647A1 A process for improving an electrode
04/23/2003EP1303337A1 Device for distilling a medium
04/23/2003EP1165447A4 Process for the removal of suspended and other material from waste water
04/23/2003EP1089698A4 Method and apparatus for treating objects with ozone
04/23/2003EP1051200B1 Electrolytic synthesis of peracetic acid
04/23/2003EP0880472B1 Use of compositions comprising fluorosurfactants for controlling biofouling
04/23/2003EP0624250B1 Method of identifying chemicals by use of non-radioactive isotopes
04/23/2003CN2546438Y Self-whirling reaction stirring apparatus for chlorine dioxide generator
04/23/2003CN2546437Y Oil field sewage softening treatment apparatus
04/23/2003CN2546436Y Improvement of fat entrapping tank
04/23/2003CN2546435Y Automatic circulating water treatment device for water tank
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