| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 10/10/1995 | US5456550 Procedure for delivering a substance into an aquifer |
| 10/10/1995 | CA2012070C System for draining land areas through siphoning from a permeable catch basin |
| 10/05/1995 | DE4411825A1 Process for 2=stage purificn. of sewage using iron salt flocculant |
| 10/04/1995 | CN2209152Y Elastic wave filler |
| 10/03/1995 | US5455173 Biological isolates for degrading nitroaromatics and nitramines in water and soils |
| 10/03/1995 | US5454949 Batch biological treatment by microorganisms; circulating loop; aeration; submerged growth filters |
| 10/03/1995 | US5454948 Removing heavy metals, reducing volatile suspended solids, and destroying indicator bacteria; sulfur oxidizing thiobacilli present in sludge; sewage treatment |
| 10/03/1995 | US5454938 Bed height sensing device for biological reactor |
| 09/28/1995 | WO1995025697A1 Process and device for simultaneous biological elimination of phosphorus and nitrogen from waste water |
| 09/28/1995 | WO1995025696A1 Apparatus and process for treating waste effluent |
| 09/28/1995 | WO1995025695A1 Improvements in biological aerated filters |
| 09/28/1995 | DE4409870A1 Dewatering of sewage sludge |
| 09/28/1995 | DE4409806A1 System for removing exhaust fumes from confined spaces, e.g., road tunnels |
| 09/28/1995 | DE4409216A1 Small waste water treatment plants, comprising one or more chambers |
| 09/27/1995 | EP0673886A2 Slime and deposits controlling process in industrial plants where waters from pulp and paper industry, as well as cooling waters, are treated |
| 09/27/1995 | EP0673885A2 Gas dissolving |
| 09/27/1995 | EP0673350A1 Metal accumulation |
| 09/27/1995 | EP0673349A1 Improvements relating to plastics articles |
| 09/27/1995 | EP0618884B1 Method of introducing hydrogen into aqueous liquids without forming bubbles |
| 09/27/1995 | CN1109029A Biodegradation process for treating organic wastewater |
| 09/27/1995 | CN1029834C Apparatus and process for treatment of wastewater |
| 09/27/1995 | CN1029833C Process for treating waste water |
| 09/26/1995 | US5453375 Biodegradation with Acinetobacter, by-product of nuclear fuel reprocessing |
| 09/26/1995 | US5453183 Fluidized bed biological filter system for fish tanks |
| 09/21/1995 | WO1995025072A1 Biofilm carrier for water and waste water purification |
| 09/21/1995 | WO1995025071A1 Waste treatment plant and process |
| 09/21/1995 | DE4408679A1 Cleaning dirty fluids by capillary action |
| 09/21/1995 | CA2185669A1 Waste treatment plant and process |
| 09/20/1995 | EP0672440A1 Filter for cleaning water |
| 09/20/1995 | EP0672125A1 Enhancement of enzyme reactions |
| 09/20/1995 | EP0672022A1 Process for treating waste water |
| 09/20/1995 | EP0487705B1 Process for the removal of hydrogensulphide (h2s) from biogas |
| 09/20/1995 | CN2208040Y Sewage water purifier by feedback aerobic and oxygen lacking method |
| 09/20/1995 | CN2208039Y Sewage biological treatment for well |
| 09/19/1995 | US5451320 Biological process for groundwater and wastewater treatment |
| 09/19/1995 | US5451319 Improved efficiency, smaller reactor, seeding raw sludge with digested sludge from methane fermentation |
| 09/19/1995 | US5451317 Solid-liquid separator |
| 09/19/1995 | US5451316 Aerobic sewage treatment system |
| 09/19/1995 | CA2044167C Polymer bead containing immobilized metal extractant |
| 09/14/1995 | WO1995024362A1 Process for purifying and reusing surfactant-containing waste waters |
| 09/14/1995 | WO1995024361A1 Method of operating a sequencing batch reactor |
| 09/14/1995 | DE4407773A1 Post-purificn. system for waste water, following activated sludge process |
| 09/13/1995 | EP0670861A1 Process for the production of filler-modified polyurethane foam carriers for bio-conversion processes |
| 09/13/1995 | EP0670817A1 Method and system for treatment of water and wastewater |
| 09/13/1995 | CN2207384Y Dual-cylinder anaerobic reactor |
| 09/13/1995 | CN2207383Y Sewage biologic treatment extender |
| 09/13/1995 | CN2207382Y Multi-layer self-flow biomembrane sewage treatment unit |
| 09/13/1995 | CN1108220A Waste water treatment method employing a continuous respriation meter and an apparatus therefor |
| 09/12/1995 | US5449618 Methods of degrading napalm B |
| 09/12/1995 | US5449460 Process for the treatment of water containing sulphur compounds |
| 09/12/1995 | US5449453 Water treatment, downflow filter, periodic backflow |
| 09/12/1995 | CA2000236C Aeration installation |
| 09/09/1995 | CA2141377A1 Floating inlet tube |
| 09/08/1995 | WO1995023939A1 A valve for aerating sludge and alternatively, tapping sludge by manipulating a branch tube in a pipe line |
| 09/08/1995 | WO1995023845A1 Micro-organism culture method |
| 09/08/1995 | WO1995023768A1 Adsorbent biocatalyst porous beads |
| 09/08/1995 | WO1995023767A1 Processing water in a biologically activated and continuously operating granular filter bed |
| 09/08/1995 | EP0668246A4 Strains of acinetobacter species (bicoccum), arthrobacter species and rhodococcus species and a process using the said strains for the biological treatment of oil pollution. |
| 09/08/1995 | CA2184610A1 Micro-organism culture method |
| 09/06/1995 | EP0669899A1 A purification system with filter for separation of activated sludge and treated water in a process tank |
| 09/06/1995 | EP0669851A1 Frameless array of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeate |
| 09/06/1995 | EP0669799A1 Water quality control in fish ponds. |
| 09/06/1995 | CN1107809A Reciprocating sewage treatment method |
| 09/05/1995 | US5447866 Reactor for microorganisms and feed device therefor |
| 09/05/1995 | US5447633 Activated sludge process for sewage purification |
| 09/05/1995 | US5447629 Air pollution control |
| 09/05/1995 | CA1336924C Solar aquatic method and apparatus for treating waste |
| 08/31/1995 | WO1995023116A1 Integrated system for treating waste waters |
| 08/31/1995 | DE4405961A1 Activated sludge aerator dispenses with the blower room |
| 08/31/1995 | DE4343788C1 Management of waste water arising over a region |
| 08/30/1995 | EP0668847A1 Purification plant for removing of nutrients from sewage |
| 08/30/1995 | CN2206289Y High effective purifier for treatment of water |
| 08/29/1995 | US5445740 Floating media biofilter |
| 08/24/1995 | WO1995022418A1 Process for the treatment of contaminated land |
| 08/24/1995 | WO1995022375A1 Process for the treatment of contaminated material |
| 08/24/1995 | WO1995022374A1 Process for the treatment of contaminated material |
| 08/24/1995 | DE4443019C1 Biological waste-water treatment |
| 08/24/1995 | CA2183585A1 Process for the treatment of contaminated material |
| 08/24/1995 | CA2183584A1 Process for the treatment of contaminated land |
| 08/24/1995 | CA2183583A1 Process for the treatment of contaminated material |
| 08/23/1995 | EP0668246A1 Strains of acinetobacter species (bicoccum), arthrobacter species and rhodococcus species and a process using the said strains for the biological treatment of oil pollution |
| 08/23/1995 | EP0667837A1 A purification system with a lamella separator |
| 08/22/1995 | US5443975 Allowing insoluble sintered expanded clay support matrix to absorb enzyme, combining with different enzyme and phenolic monomer, copolymerizing to form layer on support matrix |
| 08/22/1995 | US5443845 Composition for enhanced bioremediation of petroleum |
| 08/22/1995 | US5443730 Process for the purification of a polluted aqueous effluent |
| 08/22/1995 | US5443729 Method for removing manganese from water |
| 08/22/1995 | US5443706 Biocatalyst-immobilized electrode and method for treatment of water by use of the electrode |
| 08/17/1995 | WO1995021798A1 Stormwater treatment system/apparatus |
| 08/16/1995 | EP0667319A1 Process and reactor for the microbiological treatment of water with a high oxygen demand |
| 08/15/1995 | US5441887 Rapid degradation of halogenated hydrocarbons by soluble methane monooxygenase |
| 08/15/1995 | US5441873 Using luminescent microorganisms |
| 08/15/1995 | US5441642 Supplying oxygen to airtight biological filter, measuring oxygen consumption and adjusting feed rate; recycling |
| 08/15/1995 | US5441641 Process for removing manganese from solutions including aqueous industrial waste |
| 08/15/1995 | US5441640 Mobile waste treatment apparatus |
| 08/15/1995 | US5441634 Apparatus and method of circulating a body of fluid containing a mixture of solid waste and water and separating them |
| 08/15/1995 | US5441632 Septic system with above-ground septic tank |
| 08/15/1995 | US5441631 Waste treatment system |
| 08/10/1995 | WO1995021140A1 Method for processing semi-liquid manure and the device to be used |
| 08/10/1995 | WO1995021135A1 Biodegradation of methanesulfonic acid |
| 08/10/1995 | WO1995021134A1 Water treatment method and apparatus |