| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 09/02/1999 | WO1999043621A1 Method and device for controlling biological waste purification plants |
| 09/02/1999 | WO1999043414A1 System and method for capturing and destroying hap/voc substances using microbial degradation |
| 09/02/1999 | CA2321857A1 Waste treatment system |
| 09/02/1999 | CA2320211A1 System and method for capturing and destroying hap/voc substances using microbial degradation |
| 09/01/1999 | EP0939056A1 Device for treatment and removal of aqueous liquids by controlled atmospheric action |
| 09/01/1999 | EP0938456A1 Microbial remediation reactor and process |
| 09/01/1999 | EP0938455A2 Biological waste water purification process and device |
| 09/01/1999 | EP0938377A1 Light expanded clay aggregates for phosphorus removal |
| 09/01/1999 | EP0824503B1 Waste water treatment process for producing high yields of drinking water |
| 09/01/1999 | CN2335963Y Stirring pump for anaerobic pool |
| 09/01/1999 | CN2335962Y Biological packing for sewage treatment |
| 08/31/1999 | US5945331 Microorganisms, and method for biodegradation of organic compounds and method for environmental remediation |
| 08/31/1999 | US5945039 Gas-liquid processing apparatus |
| 08/31/1999 | US5945002 Method of producing secondary metabolites |
| 08/31/1999 | CA2098807C Waste treatment process employing oxidation |
| 08/31/1999 | CA2096852C Improvements in fermentation apparatus |
| 08/26/1999 | WO1999042423A1 Method and plant for the treatment of liquid organic waste |
| 08/26/1999 | WO1999042408A1 Method for waste treatment with reduced amount of excess sludge and apparatus therefor |
| 08/26/1999 | DE19807890A1 Modular small-scale waste water treatment plant |
| 08/26/1999 | DE19807458A1 Waste water biological treatment reactor has current-regulated electrodes |
| 08/26/1999 | DE19806938A1 Stationary bed reactor for denitrification of water, used in sewage works with biological unit |
| 08/26/1999 | DE19749411C1 Biological water treatment membranes subjected to intermittent reverse- flow |
| 08/25/1999 | EP0937686A1 Installation and process especially for the treatment of wine related effluents |
| 08/25/1999 | EP0937685A2 Zeolite flour based bioactive composite agent, its preparation and its use for the accelerated biodecomposition of an organic matter |
| 08/25/1999 | EP0937494A2 Membrane separation system |
| 08/25/1999 | EP0809605B1 Method for utilising tyres to clean and/or fertilise water |
| 08/25/1999 | CN2334755Y Integrated organic waste water treating acid-producing ferment device |
| 08/25/1999 | CN2334754Y Elastic stereo padding |
| 08/25/1999 | CN1226519A Method and apparatus for recovering and using wastewater from water-milled rice flour |
| 08/25/1999 | CN1226518A Process for ecological use of organic wastewater by anaerobic fermentation |
| 08/25/1999 | CN1226517A Method for arranging aerating pipelines |
| 08/24/1999 | US5942161 Device and process for liquid treatment |
| 08/24/1999 | US5942118 Method and arrangement for decomposing organic waste water pollutants |
| 08/24/1999 | US5942117 Anaerobic biodegradation of unsaturated, saturated, aromatic and halogenated hydrocarbons |
| 08/24/1999 | US5942116 Anaerobic sludge digester |
| 08/24/1999 | US5942108 Multi-phase dual cycle influent process |
| 08/24/1999 | US5942106 Filler body and method for its manufacture |
| 08/19/1999 | WO1999041357A1 Strain of hansenulla californica yeast used for the decomposition of polychlorinated biphenyls |
| 08/19/1999 | WO1999041205A1 Method for biologically treating effluents producing little or no excess sludge including a treating step by fixed film biomass |
| 08/19/1999 | DE19806292A1 Treating industrial and communal sewage in batch plant |
| 08/18/1999 | EP0936190A1 Method for biological and oxydation treatment of effluents producing no or little excess waste sludge |
| 08/18/1999 | EP0936189A1 Device for biological water treatment with rotating contact bodies |
| 08/18/1999 | EP0814894B1 Process for the treatment of gases |
| 08/18/1999 | CN2333706Y High-efficiency anaerobe filter reactor |
| 08/18/1999 | CN1226225A Biological treatment method for waste alkali liquid |
| 08/17/1999 | US5939086 Nutrient for microbial agents, film-forming agent, superabsorbent solid organic polymer for delivery of contaminant-reducing agent, optional adjuvants |
| 08/17/1999 | US5938982 Device for fining bubbles of gas contained in liquid |
| 08/17/1999 | CA2151213C Wastewater treatment method and apparatus |
| 08/12/1999 | WO1999040036A1 Process for controlling foam in a treatment reactor |
| 08/12/1999 | WO1999040035A1 Waste water treatment, media therefor and its manufacture |
| 08/12/1999 | DE19833295A1 Purification of water and maintenance of purity, preferably in aquaria and ponds |
| 08/11/1999 | CN1225340A Self oxygen carried type multiple bio-mass biological reactor |
| 08/10/1999 | US5935844 Porous cellulose carrier for immobilizing microorganisms to convert nitrogen compounds |
| 08/10/1999 | US5935843 Method and apparatus for waste degradation |
| 08/10/1999 | US5935442 Adsorbent particles comprise a porous composite material having pores allowing access to the interior of the composite material; relative density and particle size range are chosen to provide desired flotation/sedimentation properties |
| 08/10/1999 | CA2097917C Improved waste water treatment |
| 08/05/1999 | WO1999038812A1 Method and device for the biological treatment of a fluid with biogas generation |
| 08/05/1999 | WO1999038811A1 A method and a plant for biological purification of waste water |
| 08/05/1999 | WO1999038810A1 Water treatment process |
| 08/05/1999 | DE19804007A1 Verfahren und Vorrichtung zur biologischen Behandlung eines organisch belasteten Fluids unter Biogasgenerierung Method and apparatus for the biological treatment of organically polluted fluid under generation of biogas |
| 08/04/1999 | EP0933336A1 Waste pre-treatment and modular process comprising said pre-treatment |
| 08/04/1999 | EP0933335A1 Device for the biological treatment of especially waste water |
| 08/04/1999 | EP0933334A1 Method of aerobically treating wastewater and treatment tank |
| 08/04/1999 | EP0741671A4 Biodegradation of methanesulfonic acid |
| 08/04/1999 | CN2331665Y Oxidation pipe |
| 08/04/1999 | CN1225076A Immobilized cell bioreactor and method of biodegrading pollutants in a fluid |
| 08/03/1999 | US5932099 Installation for biological water treatment for the production of drinkable water |
| 08/03/1999 | US5932092 Filtering apparatus having positively buoyant and negatively buoyant particulate |
| 07/29/1999 | WO1999037588A1 On board treatment system |
| 07/29/1999 | WO1999037587A1 Method and device for cleaning of leachate |
| 07/29/1999 | WO1999037586A2 Process for oxidative regeneration of supports colonised with bacteria and used in the biological treatment of contaminated water |
| 07/29/1999 | WO1999037391A1 Self-inducting aerator |
| 07/29/1999 | WO1999025657A3 Well-mixed flow bioreactor for aerobic treatment of aqueous wastes at high organic and solids loadings |
| 07/28/1999 | EP0931768A1 Process for the removal of ammonia from wastewater |
| 07/28/1999 | EP0931767A1 Carrier-separating and water-collecting mechanism of wastewater treatment equipment |
| 07/28/1999 | EP0931582A1 Hollow fiber membrane module, hollow fiber membrane module unit using the same, and septic tank provided with the module unit |
| 07/28/1999 | EP0931023A1 Method of treating ammonia-comprising waste water |
| 07/28/1999 | EP0930931A1 Modular filtration system |
| 07/28/1999 | EP0930929A1 Microbiological method for eliminating halogenated ethenes |
| 07/28/1999 | EP0722426B1 Fluid diffuser |
| 07/28/1999 | CN1224066A Biochemical oxidation system and process |
| 07/28/1999 | CN1223974A Process for deeper purifying drinking water |
| 07/28/1999 | CN1223972A Technology and apparatus for treatment of sewage by double baffle type biological process |
| 07/27/1999 | US5928859 Detection and biodegradation of explosives |
| 07/27/1999 | US5928514 On board treatment system |
| 07/27/1999 | US5928509 Bubble floating type separator |
| 07/27/1999 | CA2248595C Off-shore sewage treating and handling apparatus and method |
| 07/22/1999 | WO1999036506A1 Microorganisms and preparation for disposing of organic wastewater |
| 07/22/1999 | WO1999036464A1 Spongy porous spherical particles and process for producing the same |
| 07/22/1999 | DE19801867A1 Post-treatment of water from final stage of waste water clarification plant |
| 07/21/1999 | EP0930283A1 Porous ceramics provided with amorphous pore surfaces and method for treating drain water and waste liquid by the use of same |
| 07/21/1999 | CN2329659Y Holing device for aeration diaphragm |
| 07/21/1999 | CN2329658Y Branched three-dimensional packing |
| 07/21/1999 | CN2329657Y Sanitation device for activating water quality of beverage product |
| 07/21/1999 | CN2329656Y Fluidized bed biological carrier |
| 07/21/1999 | CN1223624A Reactor for the depuration of polluted waste waters |
| 07/20/1999 | US5925290 Gas-liquid venturi mixer |
| 07/20/1999 | US5925252 Immersible element having gradient concentration of active ingredient highest at the outside for initially rapid sewagebiodegradation when exterior dissolves and then slower biodegradation at a maintaining rate when center dissolves |
| 07/15/1999 | WO1999035097A1 Wastewater treatment plant for olive oil processing effluents comprising a rotating biological contactor with the addition of linear or circular motion |
| 07/15/1999 | DE19800997A1 Flexibly-sited rain water reservoir with minimal environmental impact |