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)
05/1998
05/14/1998WO1998020234A1 Method of remediation of contaminants in porous media through minimization of buoyancy effects
05/14/1998WO1998019971A1 Apparatus for the biological purification of waste water
05/14/1998WO1998019970A1 Method for fighting against the presence of scum in plants for the treatment of effluents by activated sludge and plant for implementing such a method
05/14/1998WO1998019961A2 Devices and methods for producing and using ozone
05/14/1998WO1998019788A2 Method and apparatus for dissociating materials
05/14/1998WO1998019769A1 Filter elements and filter devices
05/14/1998WO1998003051A3 Polymer dispersants and methods of use in a nuclear steam generator
05/14/1998DE19748905A1 Treatment of alkaline effluent from nuclear fuel reprocessing
05/14/1998DE19711126C1 Industrial steam cleaner assembly fabricated as closed, elongated housing
05/14/1998DE19646895A1 Heat pump driven vacuum distillation plant for aqueous cleaning solutions
05/14/1998DE19646893A1 Apparatus for detecting and controlling the deposition of residue in pipes or reactors, e.g. in a drinking water treatment plant
05/14/1998DE19646049A1 Mineralising organic waste containing carbon-14 for easy disposal
05/14/1998CA2270920A1 Method of remediation of contaminants in porous media through minimization of buoyancy effects
05/14/1998CA2190299A1 Combined multi stage flash-multi effect distillation system with brine reheat
05/13/1998EP0841427A1 Laundry ozone injection system
05/13/1998EP0841305A2 Process and apparatus for the production of electrolyzed water
05/13/1998EP0841089A1 Modified organoclays
05/13/1998EP0799160B1 Process for the continuous treatment of waste water containing dissolved metals
05/13/1998EP0690822B1 Water purifier, especially for domestic use
05/13/1998CN2281349Y Water purifier with fan body
05/13/1998CN2281348Y 臭氧产生器 Ozone generator
05/13/1998CN2281200Y Multi-effective, multi-stage water distiller
05/13/1998CN1181762A Cellulose particles, method for producing them and their use
05/13/1998CN1181747A Self floculating separation medium and method
05/13/1998CN1181746A Electrochemical treatment method and device for softening water
05/13/1998CN1181358A Deep purifying and reclaiming appts. and method for industrial organic sewage
05/13/1998CN1181356A Multifunctional quick acting coagulant preparation tech. on-the-spot
05/13/1998CN1181355A Method of waste water treatment by flocculating sedementation
05/13/1998CN1181182A Phenylamides as marine antifouling agents
05/12/1998US5751922 Output control apparatus and method with variable output settings
05/12/1998US5751598 Water softening apparatus with microprocessor control
05/12/1998US5750484 Composition and improved pH driven method for wastewater separation using an amphoteric carboxylate and a cationic destabilizer composition
05/12/1998US5750392 Consisting of nitrite or nitrate ions to enhance growth of denitrifying bacteria
05/12/1998US5750037 Use of tartronic acid as an oxygen scavenger
05/12/1998US5750035 Process for dye removal
05/12/1998US5750034 Hydrophilic dispersion polymers for the clarification of deinking process waters
05/12/1998US5750033 Method of treating waste water to remove harmful ion by coagulating sedimentation
05/12/1998US5750032 Removal of lithium from polymer cements
05/12/1998US5750006 Process for making paper and cardboard
05/12/1998US5749111 Gelatinous cushions with buckling columns
05/07/1998WO1998018744A1 Separation of pyridine or pyridine derivatives from aqueous solutions
05/07/1998WO1998018726A1 Process and plant for treating an aqueous waste stream containing at least one alkali metal carboxylate
05/07/1998WO1998018725A1 Multi-chamber water purification device and method of using the same
05/07/1998WO1998018724A1 Method and apparatus for generating oxygenated water
05/07/1998WO1998018723A1 Improved method and apparatus for increasing the oxygen content of water
05/07/1998WO1998018722A1 Water purification using cyclodextrins
05/07/1998DE19735402A1 Low cost separation of ammonia from waste water
05/07/1998DE19645653A1 Filterelemente und Filtervorrichtungen Filters and Filter devices
05/07/1998DE19645548A1 Water treatment process and assembly draws small charge of water from maincharge
05/07/1998DE19644396A1 Active carbon@ filter, especially for liquids
05/07/1998CA2270402A1 Method and apparatus for generating oxygenated water
05/07/1998CA2270142A1 Improved method and apparatus for increasing the oxygen content of water
05/07/1998CA2189799A1 Chemical product for pools
05/06/1998EP0839767A2 Hydrophilic dispersion polymers for the clarification of deinking process waters
05/06/1998EP0839762A2 Method and apparatus for scale prevention in producing deionized water
05/06/1998EP0839586A2 A cleaning apparatus and a cleaning method
05/06/1998EP0839567A1 Process and apparatus for separating very fine oxide particles
05/06/1998EP0839543A1 Method and means for desinfecting a medical apparatus
05/06/1998EP0839119A1 Wastewater treatment
05/06/1998EP0839071A1 Absorbent filled membranes for removal of volatile compounds from wastewater
05/06/1998EP0781255A4 Water treatment process
05/06/1998EP0779830A4 Sieve system for an ion exchange column
05/06/1998EP0777520A4 Zero waste effluent water desalination system
05/06/1998EP0766650B1 Anaerobic removal of sulphur compounds from waste water
05/06/1998EP0748254B1 Process for regenerating a catalyst
05/06/1998EP0723396A4 Compositions and methods for inhibiting the formation of chloramines and trihalomethanes in aqueous media
05/06/1998CN2280710Y Noval water-treating device
05/06/1998CN2280709Y Magnetic cup
05/06/1998CN2280708Y Heat-pipe type sea-water desalinating device
05/06/1998CN1181017A Bioactive concentrate, its producing method and certain drug compositions containing also chondroitin sulphate
05/06/1998CN1180769A Flocculation-precipitation treatment method and equipment for waste paper deinking waste water
05/06/1998CN1180736A Active wine and preparation method thereof
05/06/1998CN1180669A Secondary water-supply purification system for high-rise building
05/06/1998CN1180668A Comprehensive treatment method for papermaking black liquid
05/06/1998CN1180667A Using method of mineral floculating agent
05/06/1998CN1180666A Water dispensing apparatus for cold and hot water purifier
05/06/1998CN1180665A Manufacture method for adjustable mineralized pure water
05/06/1998CN1180664A Water treatment method for water containing oil droplete
05/06/1998CN1180663A Sewage treatment method for lime method paper mill
05/06/1998CN1180581A Filter cartridge with sieve in outlet aperture
05/06/1998CN1180477A Halopropargyl compounds as marine antifouling agents
05/05/1998US5748437 Fluid separation system with flow-through capacitor
05/05/1998US5747619 Water-soluble, carboxyl-containing copolymers, the preparation thereof and the use thereof as scale inhibitor
05/05/1998US5747403 Organophilic, quaternary phosphonium ion-exchanged smectite clays
05/05/1998US5746994 Method for synthesizing ferrate and ferrate produced thereby
05/05/1998US5746926 Method for hydrothermal oxidation of halogenated organic compounds with addition of specific reactants
05/05/1998US5746925 Composition for coagulating oil
05/05/1998US5746923 Antideposit agents for pumping systems and feeding chlorinated water with surfactants
05/05/1998US5746921 Fluid flow through column with heavy and lightweight particles of sand; ammonia removal by nitrification with bacteria; nitration
05/05/1998US5746920 Process for purifying dairy wastewater
05/05/1998US5746904 Method, apparatus and system for continuously treating water body
05/05/1998CA1339850C Polymeric compositions
05/04/1998CA2220196A1 Cooling tower water treatment system
05/01/1998CA2219868A1 Hydrophilic dispersion polymers for the clarification of deinking process waters
04/1998
04/30/1998WO1998017591A1 Electronic scale reduction by eccentrically positioned coils
04/30/1998WO1998017590A1 Electrodialyzer and process for desalination
04/30/1998WO1998017589A1 Electrochemical treatment of effluent water
04/30/1998WO1998017588A1 Reducing electrolytic water and method for preparing the same
04/30/1998WO1998017587A1 Method and device for the electrophysical treatment of water
04/30/1998WO1998017586A1 Recycle of water from polyvinyl chloride polymerization by treatment with a cation exchange
1 ... 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 ... 1452