Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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11/30/1993 | CA1324843C Process for purifying waste water |
11/25/1993 | WO1993023340A1 Method and apparatus for dissolving a gas into and mixing the same with a liquid |
11/25/1993 | WO1993023339A1 Wastewater treatment method and apparatus |
11/25/1993 | WO1993023338A1 Purifying apparatus |
11/25/1993 | WO1993023243A1 Corrugated sheet assembly |
11/25/1993 | WO1993023087A1 Stabilization of biowastes |
11/25/1993 | DE4228172C1 Verfahren und Vorrichtung zum Verteilen eines Gases in einer Flüssigkeit Method and apparatus for distributing a gas in a liquid |
11/25/1993 | DE4216225A1 Disposing of waste from food prepn. - by mixing with water, degrading with active enzymes sepg. into solids and sugar soln. and thickening soln. |
11/24/1993 | EP0570756A1 Method for oxidizing organic compounds in water or waste water |
11/24/1993 | CN2147234Y Mixied stereo material filling device |
11/24/1993 | CN2147039Y Side sedimentation type three-phase fluidized bed reactor |
11/23/1993 | US5264349 Anaerobic conditions |
11/23/1993 | US5264131 Forming a liquid membrane of oxygen permeable liquid on a support layer made of a hydrobic porus material, contacting one end of membrane with oxygen and other with aqueous liquor |
11/23/1993 | US5264130 Sewage treatment |
11/23/1993 | US5264129 Filter device |
11/23/1993 | US5264128 Water purification process |
11/23/1993 | US5264127 Floating aquatic plant water treatment system with sprayer system |
11/23/1993 | US5264018 Use of metallic peroxides in biormediation |
11/18/1993 | EP0569828A1 Anearobic plant for treating waste water, sewage and manure |
11/18/1993 | EP0569555A1 Solid state culture of white rot fungi |
11/18/1993 | EP0569372A1 Waste handling method. |
11/17/1993 | CN2146479Y Air-float separator |
11/16/1993 | US5262096 Bubbling |
11/16/1993 | US5262093 Cowling for a rotary surface aerator used for the aeration of tanks intended for water treatment |
11/16/1993 | US5262051 Apparatus for biological treatment of water and waste, of the attached-growth type |
11/16/1993 | US5261783 Kinetic pump having a centerless impeller |
11/16/1993 | US5261193 Tensioned membrane cladding system |
11/16/1993 | CA1324449C Method for treating polluted material |
11/15/1993 | CA2068677A1 Multimedia bioreactor and periodic washing method therefor |
11/11/1993 | WO1993022418A1 Bioreactor system |
11/11/1993 | WO1993022248A1 Recycling industrial waste water |
11/11/1993 | WO1993022247A1 Biological degradation of methylene chloride |
11/11/1993 | WO1993022246A1 Fluidized-bed fermenter |
11/11/1993 | WO1993022245A1 Apparatus and process for removal of pollutants from waste water |
11/11/1993 | WO1993022244A1 Cage-like biological contact cleaner device for waste water treatment |
11/11/1993 | WO1993022240A2 Biogas reactor |
11/11/1993 | DE4214896A1 Wirbelschichtfermenter Fluidized bed fermenter |
11/11/1993 | CA2135161A1 Fluidized-bed fermenter |
11/11/1993 | CA2134545A1 Bioreactor system |
11/10/1993 | EP0569199A1 In situ biodegradation of groundwater contaminants |
11/10/1993 | EP0568599A1 Method for avoiding pitch troubles by use of thermostable lipase. |
11/10/1993 | EP0556315A4 Means and method for enhancing plant growth under field conditions |
11/10/1993 | CN2145790Y Air-liquid integration pressure contact oxidation tower |
11/10/1993 | CN1078215A Method for treatment of wastewater of molasses alcohol |
11/09/1993 | US5259996 Low profile cascade aerator |
11/09/1993 | US5259959 Anoxic ammonia oxidation |
11/05/1993 | CA2095275A1 Situ biodegradation of groundwater contaminants |
11/04/1993 | DE4213777A1 Floating water aeration device for low energy aeration of fish ponds, etc. - has air inlet tube with lower end giving restricted inflow to impeller for mixing air and water |
11/03/1993 | EP0568346A1 Oxygen dissolving apparatus |
11/03/1993 | CN2145189Y Anaerobic part fluidized bed |
11/03/1993 | CN2145188Y Biological extender |
11/03/1993 | CN2145187Y Bailing bucket biological turntable |
11/03/1993 | CN2145186Y Biological revolving cage |
11/03/1993 | CN1078014A Ground contamination remediation process and apparatus |
11/02/1993 | US5258121 Closed loop multistage treatment of toilet wastes using aerobic and anaerobic stages |
11/02/1993 | CA1323943C Process for the treatment of waste |
10/28/1993 | WO1993021348A1 Mixture of microorganisms, the use of the mixture in the biodegradation of hydrocarbons, and a method of applying the mixture |
10/28/1993 | WO1993021287A1 Process for converting sludge into a fuel or a soil conditioner |
10/28/1993 | WO1993021118A1 Turbo oxidation system (tos) for 'wet combustion' of cod-containing liquids and for cod-reduction by enzymes |
10/28/1993 | WO1993020959A1 Method and device for bioremediation |
10/28/1993 | WO1993020915A1 Continuous-belt separator/reactor and method |
10/28/1993 | DE4213814A1 Mass exchange element useful for biological waste gas or waste water purificn. - consists of lattice of intersecting lattice bars through which liq. flows |
10/28/1993 | DE4213474A1 Waste water processing - using two=stage biological cleaning with recirculating water and bacteria growth for water from cellulose ether prodn. |
10/28/1993 | DE4213316A1 Fine bubbling device e.g. for waste water aeration - has flat elements joined by flexible spacers |
10/28/1993 | DE4213015A1 Biogasreaktor Biogas reactor |
10/28/1993 | CA2118004A1 Continuous-belt separator/reactor and method |
10/28/1993 | CA2117751A1 Turbo oxidation system (tos) for "wet combusion" of cod-containing liquids and for cod-reduction by enzymes |
10/27/1993 | EP0567405A1 Process, apparatus and plant for the treatment of fatty wastes and product of their valorization |
10/27/1993 | EP0567102A2 Method of biologically decomposing phenol or furan compounds by microorganisms |
10/27/1993 | CN1077697A Process for sewage disposal from wool dyeing and printing by electrolyzation-catalytic oxidation |
10/27/1993 | CN1077696A A purifying method and apparatus for waste water of miscellaneous use |
10/26/1993 | US5256380 Startup openings in a three-phase gaslift loop reactor |
10/26/1993 | US5256309 Pumping a solution of dissolving lime and air |
10/26/1993 | US5256298 Continuous-belt separator/reactor and method |
10/26/1993 | US5256281 Baffle system for anaerobic sewage treatment pond |
10/26/1993 | CA1323710C Intermittent aeration type biological treatment process and system therefor |
10/21/1993 | DE4212479A1 Microorganism culture obtd. in mineral medium - contg. hexa:chloro-cyclohexane as sole carbon source, used to break down chlorinated cyclic cpds. |
10/20/1993 | EP0566256A1 Process for treating oily sludge and organic wastes |
10/20/1993 | EP0566056A1 Processes and apparatusses for biological treatment of organic substances, especially for anaerobic biological hydrolysis for the following biomethanation |
10/20/1993 | EP0565534A1 Apparatus for treating a fluid with a treatment medium |
10/20/1993 | EP0514453B1 Treatment of wastewater |
10/20/1993 | EP0486578B1 Process for purifying and processing contaminated materials |
10/20/1993 | EP0445203B1 Packing in or for a vessel |
10/20/1993 | EP0404782B1 Process for culture of aquatic animals |
10/20/1993 | EP0341280B1 Process for removing hazardous substances from water or air |
10/19/1993 | US5254254 Biological method of treating wastewater in batch with porous biomass carrier |
10/19/1993 | US5254253 Modular shipboard membrane bioreactor system for combined wastewater streams |
10/19/1993 | US5254252 Ecological treatment system for flowing water |
10/19/1993 | US5254246 Water reclamation system |
10/19/1993 | US5254245 Multi-stage anaerobic packed column reactor with fixed-film column filter |
10/19/1993 | US5254143 Diaphragm for gas-liquid contact, gas-liquid contact apparatus and process for producing liquid containing gas dissolved therein |
10/14/1993 | WO1993019836A1 Method and apparatus for effecting gas-liquid contact |
10/14/1993 | DE4212233A1 Cleaning of waste water using activated sludge method - is carried out in each of a number of storage modules which are operated opt. with respective time delays and enclose central equipment space |
10/14/1993 | DE4211648A1 Flat-plate aerator esp. for waste water treatment tanks - aeration element is covered by tubular membrane clamped to end or head section of element, gas is introduced inside membrane via passage in head section |
10/14/1993 | CA2337131A1 Method and apparatus for effecting gas-liquid contact |
10/14/1993 | CA2337121A1 Method and apparatus for effecting gas-liquid contact |
10/14/1993 | CA2092393A1 Process for treating oily sludge and organic wastes |
10/13/1993 | EP0565176A2 Process for the treatment of organic waste |
10/13/1993 | EP0564935A1 Sewage treatment plant |
10/13/1993 | CN1077179A Alkaline straw pulp paper black liquid and middle section treatment of sewage technology thereof |