Patents for C02F 11 - Treatment of sludge; Devices therefor (21,423)
08/1994
08/18/1994DE4324502A1 Oxidatives Abfallbehandlungsverfahren Oxidative waste treatment processes
08/17/1994EP0610616A1 Two-stage wet oxidation process for treating wastewater
08/17/1994CN1090786A Plant for processing slurry and uses of same
08/17/1994CN1090707A Anthraquinone inhibition of methane production in methanogenic bacteria
08/16/1994US5338511 Undecylenate deodorants for sewage sludges
08/16/1994US5338447 Bioreactor
08/16/1994US5337496 Sludge treatment process
08/12/1994CA2095803A1 Two-stage subcritical-supercritical wet oxidation
08/11/1994DE4302922C1 Process and equipment for the treatment of sludges
08/10/1994EP0609614A1 Raw sewage disposal apparatus
08/09/1994US5336398 Water treatment device
08/04/1994WO1994017161A1 Solid waste disposal process and apparatus
08/04/1994WO1994017001A1 Process and apparatus for treating sludge from waste water, especially from sewage
08/04/1994DE4302740A1 Biological waste disposal process with electricity generation
08/03/1994EP0524245B1 Process and apparatus for pathogen reduction in waste
08/03/1994EP0404832B1 Method for the processing of organic compounds
07/1994
07/29/1994CA2109783A1 Raw sewage disposal apparatus
07/27/1994EP0607644A1 Partial oxidation of sewage sludge
07/27/1994EP0526458B1 Process and equipment for utilizing sewage sludge
07/27/1994CN1089923A Fluidized bed incinerating method for treatment of industrial poison sewage or sludge
07/20/1994EP0426813B1 Process for manufacturing clinkers
07/20/1994CN1089579A Iron method for preptreatment for marsh gas fermentation of molasses containing waste water
07/14/1994DE4300709A1 Vehicle washing station waste water cleaning process
07/13/1994EP0606154A2 Sludge filtering and thickening installation and method
07/13/1994CN1089241A Oxidation of ammonium ions and organic carbon in wastewaters
07/07/1994WO1994015019A1 Method of disposing of excess sludge
07/07/1994CA2152618A1 Method of disposing of excess sludge
07/05/1994US5325605 Method and apparatus for waste treatment
06/1994
06/29/1994EP0603457A1 Waste-treating material
06/29/1994CN1088615A Process for intensification of fermentations
06/29/1994CA2112533A1 Sewage incineration system
06/28/1994CA1330457C Method and installation for the break-down and recycling of solid urban waste by anaerobic fermentation
06/24/1994CA2086212A1 Partial oxidation of sewage sludge
06/23/1994WO1994013592A1 Sludge treatment process and plant
06/23/1994WO1994013382A1 Heavy-liquid processing installation and its use
06/17/1994CA2089019A1 Waste-treating material
06/15/1994EP0601245A1 Delayed, exothermic, alkaline sterilization method for treating wastewater sludges
06/14/1994CA1330239C Process for the disinfection of sewage sludge
06/09/1994WO1994012263A1 A device for dewatering and/or transport of screening or sludge material
06/08/1994EP0585221A4 Anaerobic digestion process
06/08/1994CN1024917C Method to treat sludge in dichloroethane stock tank
06/07/1994US5318184 Sludge drying system
06/01/1994EP0599182A1 Process for oxidation of ammonium ions and organic carbon in waste water
05/1994
05/31/1994CA1329957C Process for removing metal contaminants from liquids and slurries
05/26/1994WO1994011310A1 Process for the oxidation of materials in water at supercritical temperatures utilizing reaction rate enhancers
05/26/1994CA2148080A1 Process for the oxidation of materials in water at supercritical temperatures utilizing reaction rate enhancers
05/26/1994CA2109879A1 Oxidation of ammonium ions and organic carbon in wastewaters
05/25/1994CN2166127Y Household anaerobic apparatus
05/11/1994EP0595858A1 Supercritical water oxidation process and apparatus of organics with inorganics.
05/11/1994CN1086457A Sludge dehydrating press and method for treating sludge
05/11/1994CN1024462C In-situ formation of soluble silicates from biogenetic silica in chemical fixation/solidification treatment of waste
05/04/1994EP0463062B1 Bioslurry reactor for treatment of slurries containing minerals, soils and sludges
05/03/1994US5308610 Odor control composition and method of using same
05/03/1994CA1329278C Procedure and bioreactor for treating low activity organic wastes from nuclear power plants with the aid of anerobic fermentation
04/1994
04/28/1994WO1994008907A1 Process for intensification of fermentations
04/28/1994WO1994008905A1 Process for treating industrial waste waters with low concentrations of toxic organic pollutants
04/28/1994WO1994008738A1 Anthraquinone inhibition of methane production in methanogenic bacteria
04/28/1994DE4312891C1 Decontaminating aq. sludges by removal of gaseous and liq. harmful substances - by microbiological oxidn. with water-filled porous microorganism carrier body on the surface of the sludge
04/28/1994CA2147253A1 Process for treating industrial waste waters with low concentrations of toxic organic pollutants
04/27/1994EP0593887A1 Process for drying pasty material preferably in the form of pellets, especially sewage sludge and apparatus for carring out this process
04/27/1994EP0593802A1 Method of removing volatile chlorinated hydrocarbon base materials
04/27/1994EP0593771A1 Method of recovering volatile acids
04/27/1994EP0523081B1 Process and installation for purifying waste water
04/27/1994CN1085877A A method for improving bottom and water quality in water areas and a set of agents used in the method
04/26/1994US5306481 Partially reforming heavy liquid hydrocarbons in steam fluidized bed, steam reforming over fixed catalyst bed
04/26/1994CA2027073C System of and apparatus for sanitizing waste material
04/21/1994DE4234952A1 Thermal drying of sludges, especially sewage sludge - sludge is atomised by jet of hot gas before being dried by further hot gas stream
04/21/1994CA2108854A1 Sludge collection and detoxification apparatus
04/20/1994CN1085471A Treatment of waste materials for disposal
04/19/1994US5304709 Adding finely divided particles of dry cementitious material to water containing hazardous waste, allowing to drop through without mixing to displace excess water, curing to immobilize
04/19/1994US5304708 Alloying metal hydroxide sludge waste into a glass material
04/19/1994US5304706 Mixture of organophilic clay, clay growth agent, initiator, oxidizer, magnesium and/or aluminum compounds, for in situ hardening of hazardous waste mixtures
04/14/1994DE4233672A1 Environment friendly disposal of clarification sludge - by drying, conditioning and use as fuel in ore smelting.
04/13/1994EP0591299A1 Process and device for sludge dewatering.
04/13/1994CN1085193A Method and apparatus for recovery of oil from oil-bearing sludge
04/06/1994EP0591124A1 Device and method for drying sludge
04/06/1994EP0590909A1 Sludge treating process and apparatus
04/06/1994EP0590816A1 Immobilisation of wate material
04/06/1994EP0590711A1 A method for the immobilisation of waste material contaminated with organic chemical compounds
04/06/1994CN1084831A Vertical flow-reflection multi-function biolochemical reactor
04/06/1994CN1084826A Producing method for new type crocus
03/1994
03/31/1994WO1994006575A1 Compositions and methods for waste treatment
03/31/1994DE4325907C1 Pelletising appts. for dewatered pastes, esp. sludge - comprises holding tank with two movable wall slides, outlet covered by die plate with upper part and lower oscillating part, both with rows of holes.
03/31/1994CA2145310A1 Compositions and methods for waste treatment
03/30/1994EP0589367A1 Method and plant for disposing refuse as well as an extruded or molded part thereof
03/29/1994US5298174 Corrosion resistance
03/29/1994US5297496 Process for the combined treatment of waste materials
03/29/1994CA2106824A1 Sludge treating process and apparatus
03/29/1994CA2106417A1 Method for the immobilisation of waste material contaminated with organic chemical compounds
03/24/1994DE4331932A1 Bio-gas prodn. from manure - has sludge gassing station to give gas for gas turbine for electricity generation and used sludge is dried for disposal
03/24/1994DE4231880A1 Vehicle washing station waste water cleaning assembly
03/24/1994DE4231292A1 Solidification of inorganic waste prods. from metal surface treatment - by treating aq. soln. of waste in reaction vessel with vacuum and introducing calcium oxide
03/24/1994DE4231048A1 Treatment of suspensions, esp. sewage sludge - by continuous addn. of organic additive, esp. sawdust.
03/23/1994EP0588138A1 Method and apparatus for heat recovering in the chemical degradation of sludge or wastewater
03/17/1994WO1994005903A1 Waste treatment system and method utilizing pressurized fluid
03/17/1994WO1994005603A1 Process for removing heavy metals, in particular mercury, from flue gas scrubber effluents
03/17/1994DE4229662A1 Verfahren zur Entfernung von Schwermetallen, insbesondere von Quecksilber, aus aus Rauchgaswäschern stammenden Abwässern Process for the removal of heavy metals, especially mercury, from originating from flue gas scrubbers wastewater
03/17/1994DE4215473C1 Drying or incinerating clarifier sludge - includes passing effluent gases into a charcoal drying unit to remove harmful components
03/16/1994EP0587080A1 Sludge dehydrating press and method for treating sludge
03/16/1994EP0587045A2 Method for the utilization of waste plastics