| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 07/04/2002 | WO2002044094A8 Process for enhancing the efficiency of wastewaster purification and decreasing the demand of reagent |
| 07/04/2002 | WO2002034372A3 Process for improving the purity of quaternary ammonium hydroxides by electrolysis |
| 07/04/2002 | WO2002032815A3 Treatment of sludge from wastewater treatment facilities |
| 07/04/2002 | WO2002004361A8 System and method for simultaneous removal of arsenic and fluoride from aqueous solutions |
| 07/04/2002 | WO2002000553A3 Controlled cooling of input water by dissociation of hydrate in an artificially pressurized assisted desalination fractionation apparatus |
| 07/04/2002 | WO2001098558A3 Corrosion control utilizing a hydrogen peroxide donor |
| 07/04/2002 | US20020084229 Perchlorate removal methods |
| 07/04/2002 | US20020084228 Continuous method is provided for dissolving a solid oxidizer into an aqueous solution which yields a stream of the aqueous solution having a constant or near constant concentration of solid oxidizer. |
| 07/04/2002 | US20020084226 Pair of ion-exchange water softener tanks to supply softened water to the water system, capable of regeneration by flushing with a regeneration solution to replenish depleted ions; preventing system failure due to salt crystallization |
| 07/04/2002 | US20020084219 Method and apparatus for neutralizing alkaline wastewater without using mineral acids |
| 07/04/2002 | US20020084213 Warm/cold double-circulation water filter system and swimming pool arrangement |
| 07/04/2002 | US20020084188 New regeneration method for placing the removed ions back into solution. |
| 07/04/2002 | US20020083842 Automatic vending machine with functional water generator |
| 07/04/2002 | US20020083841 Water kettle, and particle catcher/filter assembly for said kettle |
| 07/04/2002 | DE10149447A1 Composition for waste water treatment comprises a polymer flocculant or precipitant and a macrobiotic mixed culture |
| 07/04/2002 | DE10065482A1 New heavier halogen atom substituted squarane dyes, used as photosensitizer in photodynamic therapeutical applications, fluorescent detector of tumors and sensitizer in water sterilization |
| 07/04/2002 | DE10058270A1 Verfahren und Einrichtung zum Entfernen von Kontaminationsschichten von Wasseroberflächen Method and apparatus for removing contamination layers from water surfaces |
| 07/04/2002 | CA2432927A1 Antibacterial treatments |
| 07/03/2002 | EP1219570A1 A method and a device for the purification of waste water |
| 07/03/2002 | EP1219172A1 Halocyanoacetamide antimicrobial compositions |
| 07/03/2002 | EP1218923A1 Electrode-free discharge lamp |
| 07/03/2002 | EP1218797A1 Method to extract silver from a photographic developer |
| 07/03/2002 | EP1218425A1 Microbicidal additives |
| 07/03/2002 | EP1218299A1 Anionic and nonionic dispersion polymers for clarification and dewatering |
| 07/03/2002 | EP1218298A1 Method for conditioning slurry, liquid manor, human faeces that are collected in chemical toilets (portable toilets) or the like |
| 07/03/2002 | EP1218297A1 Apparatus for preparing sterilizing water and process for sterilizing water |
| 07/03/2002 | EP1218296A1 Hand portable water purification system |
| 07/03/2002 | EP1218295A1 A process and a plant for purifying of a liquid |
| 07/03/2002 | EP1218294A1 Water treatment apparatus |
| 07/03/2002 | EP1218293A1 On premise water treatment system and method |
| 07/03/2002 | EP1218120A1 Method and device for sanitizing contaminated ground water |
| 07/03/2002 | EP1218104A1 Method and installation for eliminating metal cations from a liquid with polyazacycloalkane resins grafted on a support |
| 07/03/2002 | EP1217892A1 Biocidal applications of concentrated aqueous bromine chloride solutions |
| 07/03/2002 | EP1217886A1 Waste-water purification in cattle-breeding systems |
| 07/03/2002 | EP1017637A4 Apparatus and method for oxidizing undigested wastewater sludges |
| 07/03/2002 | EP0820537B1 Electrochemical system and method for the removal of charged species from contaminated liquid and solid wastes |
| 07/03/2002 | CN2498218Y Sealed sewage conveying arrangement |
| 07/03/2002 | CN2498216Y Utilizing and treat device for household waste water |
| 07/03/2002 | CN2498195Y Surged depositing dry-bed |
| 07/03/2002 | CN2498149Y Water purifier with non-nitrogen oxide derivatives introduced into first two stages for procedure |
| 07/03/2002 | CN2498148Y Water purifier with non-nitrogen oxide derivatives introduced into first three stages of procedure |
| 07/03/2002 | CN2498147Y Water purifier with non-nitorgen oxide derivative introduced into first and last stages of procedure |
| 07/03/2002 | CN2498146Y Sewage recovering and treating apparatus |
| 07/03/2002 | CN2498145Y Electric actuator for magnetizer |
| 07/03/2002 | CN2498144Y Fluid magnetizer |
| 07/03/2002 | CN2498143Y Microelectrolytic reactor for wastewatre microelectrolysis-magnetic coagulation purification treating apparatus |
| 07/03/2002 | CN2498142Y Electrochemical adsorption liquid treating apparatus |
| 07/03/2002 | CN2498141Y Liquid purifying module |
| 07/03/2002 | CN2498140Y Water purifier for oxyhydrogen welder |
| 07/03/2002 | CN1356963A Method of decomposing organic compounds in water |
| 07/03/2002 | CN1356946A Method and device for preventing organism growth on sea-cases and seawater systems on ships offshore platforms, etc. |
| 07/03/2002 | CN1356880A Device for sterilising aqueous media |
| 07/03/2002 | CN1356438A Water-saving method and equipment for family |
| 07/03/2002 | CN1356345A Hydrophobic absorbing polymer and method |
| 07/03/2002 | CN1356270A Process for preparing natural bentone material used to treat sewage |
| 07/03/2002 | CN1356269A Rectorite adsorbent for treating waste water and its preparing process |
| 07/03/2002 | CN1356267A Process for removing arsenic or arsenic compound from fluid |
| 07/03/2002 | CN1087005C Bio-floculation waste water treatment utilizing synthesized micro-organism/polyester |
| 07/03/2002 | CN1087004C Waste water treating mehtod by lime causticization |
| 07/03/2002 | CN1087003C Treating method of printing and dyeing waste water |
| 07/03/2002 | CN1087002C Scale-less waste water evaporating and concentrating process |
| 07/03/2002 | CN1087001C Process for treating scum of scum pool in oil refinery |
| 07/02/2002 | US6413531 Potentiation of biocide activity using a diethanolamide |
| 07/02/2002 | US6413458 Process for forming gelatinous elastomer materials |
| 07/02/2002 | US6413435 Separator unit capable of less-dense solids and/or buoyant solids removal |
| 07/02/2002 | US6413432 Method for treating drain water and waste liquid by the use of porous ceramics provided with amorphous pore surfaces |
| 07/02/2002 | US6413427 Nitrogen reduction wastewater treatment system |
| 07/02/2002 | US6413425 Reverse osmosis composite membrane and reverse osmosis treatment method for water using the same |
| 07/02/2002 | US6413418 Improves efficiency and efficacy of waste water treatment by providing economical way to oxygenate waste water at early stage in treatment process and reduce odor caused by anaerobic reactions of sulfur |
| 07/02/2002 | US6413417 Coagulation and settling or membrane separation of silicon waste water; using alkaline silicon sludge to neutralize fluorine waste water; no stirring or aeration required; recycling unused chemicals; semiconductors |
| 07/02/2002 | US6413416 Water treatment vessel with cartridge holder for holding tablets |
| 07/02/2002 | US6413409 Flow-through capacitor and method of treating liquids with it |
| 07/02/2002 | US6413389 A potentiometer for effecting a difference in potential between electrodes, causing electrodeposition of metals on the electrodes |
| 07/02/2002 | US6413298 Olefin and partially sulfonated arylvinyl copolymers; diffu-sion of protons but not electrons; nonporous; electricity; humidification; heat and moisture exchange; desalination; fuel cells; heating/ventilation/air conditioning systems |
| 07/02/2002 | US6412716 Method and apparatus for processing municipal sludge waste |
| 07/02/2002 | US6412121 Thermo-evaporation type toilet system |
| 07/02/2002 | CA2341089C Ship ballast water sterilization method and system |
| 07/02/2002 | CA2217549C Control circuit for water distiller |
| 07/02/2002 | CA2108982C System for cleaning contaminated water |
| 07/02/2002 | CA2040541C Method for stripping metals in solvent extraction |
| 06/27/2002 | WO2002050215A2 Energy-optimized waste treatment apparatus |
| 06/27/2002 | WO2002050164A1 Anti-microbial and oxidative co-polymer |
| 06/27/2002 | WO2002049970A1 Iodine resins |
| 06/27/2002 | WO2002049969A2 Method for accelerating biocatalytic and/or hormonal processes and use of the same |
| 06/27/2002 | WO2002049968A2 Feeder and method for preparing aqueous solutions of solid oxidizers |
| 06/27/2002 | WO2002049967A2 Novel multidentate sulfur-containing ligands |
| 06/27/2002 | WO2002049966A2 Corrosion inhibition method suitable for use in potable water |
| 06/27/2002 | WO2002049960A2 Anti-corrosion agents |
| 06/27/2002 | WO2002049768A1 Flotation machine |
| 06/27/2002 | WO2002049753A1 Improvements to oxidising processes by oxygen transfer within a liquid medium in a reactor under pressure |
| 06/27/2002 | WO2002049751A1 Wet process or ozonizing oxidation method |
| 06/27/2002 | WO2002049485A1 Water kettle, and particle catcher/filter assembly for said kettle |
| 06/27/2002 | WO2002028538A3 Flotation device |
| 06/27/2002 | WO2002026642A3 Water purification system |
| 06/27/2002 | WO2002011851A3 Method and installation for continuous crystallization of liquids by freezing |
| 06/27/2002 | WO2002004354A8 Method and device for treating waste water from launderettes |
| 06/27/2002 | WO2002000557A3 Water treatment compositions |
| 06/27/2002 | WO2001086073A9 Method and device for the removal of contaminant layers from water surfaces |
| 06/27/2002 | US20020082699 Devices that change size/shape via osmotic pressure |
| 06/27/2002 | US20020081632 Detecting cell surface receptor antagonists, agonists or ligands; obtain cells, incubate with modulator, expose to electrophoretic gel, visualize banding pattern, compare to control |