| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 06/24/1999 | CA2257386A1 Process for cleaning up wastewaters from an aldolization reaction which is followed by hydrogenation |
| 06/24/1999 | CA2256951A1 Apparatus for receiving metalworking fluid |
| 06/23/1999 | EP0924184A2 A method for treating an effluent containing sorbic acid and/or a salt thereof and an effluent disposal device |
| 06/23/1999 | EP0924167A2 Amphoteric polymer/polyamine combinations for color removal and clarification of paper mill waste water |
| 06/23/1999 | EP0923969A1 Method and apparatus for freeze-concentrating substances |
| 06/23/1999 | EP0923611A1 Polyacrylamide polymerisation |
| 06/23/1999 | EP0923418A1 Method and apparatus for removal of material utilizing near-blackbody radiator means |
| 06/23/1999 | CN2325381Y Apparatus for purifying drinking water |
| 06/23/1999 | CN2325378Y Apparatus for magnetizing fluid |
| 06/23/1999 | CN2325377Y Lateral flowing type oil remover for treating oily wastewater |
| 06/23/1999 | CN1220618A Electrodeionization apparatus having geometric arrangement of ion exchange material |
| 06/23/1999 | CN1220242A Waste liquid treatment method and treatment device |
| 06/23/1999 | CN1220241A Water drinker |
| 06/23/1999 | CN1220240A Integrated method for photocatalysis and membrane separation |
| 06/22/1999 | US5915161 Microbe stunning device for a biological decontamination system |
| 06/22/1999 | US5914436 Method for the destruction of unwanted compounds using metal oxides composites |
| 06/22/1999 | US5914403 Novel 4-((pyridino-carbonyl)amino)-2-(carboxylic acid or ester)-5,6,7,8-optionally substituted quinoline compounds as anticonvulsants |
| 06/22/1999 | US5914366 Multimodal emulsions and processes for preparing multimodal emulsions |
| 06/22/1999 | US5914284 System for generating methane gas from sewer sludge and process utilizing same |
| 06/22/1999 | US5914046 Process and apparatus for carbon dioxide pretreatment and accelerated limestone dissolution for treatment of acidified water |
| 06/22/1999 | US5914045 Portable water filtration system and method |
| 06/22/1999 | US5914043 Fluid filtering method |
| 06/22/1999 | US5914041 Reverse osmosis unit having purified liquid collection cavity and membrane placed deep within a vertical channel filled with unpurified liquid which provides pressure to cause permeate to flow through membrane into cavity |
| 06/22/1999 | US5914040 Process for the purification of a medium containing organic waste |
| 06/19/1999 | CA2225370A1 A process for recovering zinc values |
| 06/18/1999 | CA2256244A1 Method and apparatus for freezeconcentrating substances |
| 06/18/1999 | CA2255457A1 Amphoteric polymer/polyamine combinations for color removal and clarification of paper mill waste water |
| 06/17/1999 | WO1999029929A1 Apparatus for producing ozone water and method of producing ozone water by using the same apparatus |
| 06/17/1999 | WO1999029745A1 Anionic polymer products and processes |
| 06/17/1999 | WO1999029633A1 Method for liberating, in an aqueous phase, substance(s) which is/are impossible, or difficult, to biodegrade, from a compounded material which is not soluble in water |
| 06/17/1999 | WO1999029632A1 Calcium hypochlorite composition |
| 06/17/1999 | WO1999029631A1 Method for deferrization of ferruginous mineral water rich in carbon dioxide |
| 06/17/1999 | WO1999029630A1 Apparatus and method for treating water |
| 06/17/1999 | WO1999029629A1 Treatment of phosphating waste water |
| 06/17/1999 | WO1999029409A1 Composition for inhibiting microbial adhesion on surfaces |
| 06/17/1999 | WO1999029403A1 Automatic dry granular chemical dispenser |
| 06/17/1999 | WO1999029401A1 System for maintaining a clean skein of hollow fibres while filtering suspended solids |
| 06/17/1999 | WO1999029394A1 Universal filter for soda pop and bottled water bottles |
| 06/17/1999 | WO1999029391A1 Shower filter allowing higher showerhead placement |
| 06/17/1999 | WO1999029387A1 Method and apparatus for removing water from aqueous fluid mixture |
| 06/17/1999 | CA2256133A1 Drinking fluid |
| 06/16/1999 | EP0922788A1 Electrochemical installation |
| 06/16/1999 | EP0922678A1 Waste treatment of metal plating solutions |
| 06/16/1999 | EP0922677A2 Device for the regulation of the quantity of regeneration water supplied to ion-change resins preferably in machines for washing |
| 06/16/1999 | EP0922676A1 Desalination apparatus and method of operating the same |
| 06/16/1999 | EP0922386A2 Controlled release compositions |
| 06/16/1999 | EP0922324A1 Control circuit and method for piezoelectric transformer |
| 06/16/1999 | EP0922012A2 Apparatus and method for oxidizing organic materials |
| 06/16/1999 | EP0921823A1 Uv water disinfector |
| 06/16/1999 | EP0921722A1 Automated closed recirculating aquaculture filtration system |
| 06/16/1999 | CN2324148Y Ozone mixing device |
| 06/16/1999 | CN2324147Y Frame type corrugated plate flocculating device |
| 06/16/1999 | CN2324146Y Electromagnetic water treating device |
| 06/16/1999 | CN2324145Y Device for using secondary water of washing tank |
| 06/16/1999 | CN2324144Y Multi-function water purifier |
| 06/16/1999 | CN2323710Y Water-saving device for hyperfilevation water drinking machine |
| 06/16/1999 | CN1219512A Method for removing chlorine ion in salt and alkali sludges |
| 06/16/1999 | CN1219509A Application of calcium sulfite |
| 06/16/1999 | CN1219508A Oxidation/reduction potential germicidal water and its preparation method |
| 06/16/1999 | CN1219439A Condensing precipitator |
| 06/15/1999 | US5912182 Particle aggregation method and apparatus |
| 06/15/1999 | US5911884 Contamination proof purified water dispenser and method of using same |
| 06/15/1999 | US5911882 Water treatment for contact with iron solutions with support material and drying |
| 06/15/1999 | US5911876 Insitu zeolite filter bed system for the removal of metal contaminants |
| 06/15/1999 | US5911870 Housing and method that provide extended resident time for dissolving generated oxygen into water |
| 06/15/1999 | US5911868 Electrolysis within multicompartment cell having respective corrosion resistant electrodes immersed in membrane-separated anolyte and catholyte solutions where organic waste is concentrated on anolyte side |
| 06/15/1999 | US5911541 Thin layer solvent extraction |
| 06/15/1999 | CA2136200C Water clarifier with first filtrate isolation, improved backwashing and improved bubble generation |
| 06/10/1999 | WO1999028372A1 Biosorbents and process for producing the same |
| 06/10/1999 | WO1999028242A1 Monitoring of the continuous addition of a liquid agent to water |
| 06/10/1999 | WO1999028241A1 Water decontaminating system and method |
| 06/10/1999 | WO1999028240A1 METHOD AND APPARATUS FOR ADJUSTING THE pH OF A LIQUID |
| 06/10/1999 | WO1999028239A1 Apparatus and method for constant flow oxidizing of organic materials |
| 06/10/1999 | WO1999028238A1 Chemical modification of electrochemically activated water |
| 06/10/1999 | WO1999028237A1 Tank for removing unabsorbed gas from a mixture of unabsorbed gas and liquid |
| 06/10/1999 | WO1999028036A1 Method for optimising the operating cycle of a water treatment unit |
| 06/10/1999 | WO1999027972A1 Water sterilization system incorporating ultrasonic device |
| 06/10/1999 | WO1999027970A2 Method and devices for disinfecting liquid and gases |
| 06/10/1999 | WO1999021801B1 Method for water purification based on the fenton reaction |
| 06/10/1999 | DE19855914A1 Weir spillway for treated sewage |
| 06/10/1999 | DE19825985A1 Rotating sieve for removal of particulate matter from continual flow of water |
| 06/10/1999 | DE19754109A1 Abwasseraufbereitung bei der Phosphatierung Wastewater treatment in the phosphating |
| 06/10/1999 | DE19754058A1 Sludge clearing assembly for water treatment plant basin captures sludge |
| 06/10/1999 | DE19753386A1 Water treatment plant to recover water following bottle washing |
| 06/10/1999 | DE19753377A1 Preparation of epsilon-caprolactam with low dimer and water content |
| 06/10/1999 | CA2312798A1 Method and apparatus for adjusting the ph of a liquid |
| 06/10/1999 | CA2312791A1 Biosorbents and process for producing the same |
| 06/09/1999 | EP0921102A1 Apparatus for distributing CO2 and a method for treating an effluent and cleaning a surface with the same apparatus |
| 06/09/1999 | EP0921101A2 Process for water purification |
| 06/09/1999 | EP0921100A1 Process and installation for processing of liquid effluents |
| 06/09/1999 | EP0920489A1 Method for producing cold-filtered beer |
| 06/09/1999 | EP0920401A1 Method of disinfecting water with iodine species |
| 06/09/1999 | EP0920340A1 Device for catalytically dissolving hydrogen peroxide |
| 06/09/1999 | EP0830508A4 Ocean thermal energy conversion (otec) system |
| 06/09/1999 | EP0807087B1 Water purifying machine having membrane chamber flushing |
| 06/09/1999 | EP0756509B1 Chemical feeder |
| 06/09/1999 | EP0738189B1 Oxidative cleaning process of contaminated slurries or slurried earth |
| 06/09/1999 | EP0651729B1 A water distillation system |
| 06/09/1999 | EP0639104B1 Process and plant for exhaust gas purification and a combination of this exhaust gas purification with that of waste water |
| 06/09/1999 | CN2322964Y Split special tap-water cleaning sterilizing water apparatus |