Patents for C02F 11 - Treatment of sludge; Devices therefor (21,423)
01/1985
01/09/1985EP0130210A1 Apparatus for the production of methane
01/08/1985US4492039 Method and apparatus for drying and handling sludge
01/02/1985EP0129590A1 Anaerobic fermentation
01/01/1985US4491522 Anaerobic digestion process for organic wastes
12/1984
12/27/1984EP0129520A2 A modular element plant for degrading organic wastes by means of earth-worms
12/27/1984EP0128966A1 Process for the disposal of industrial sludges
12/25/1984US4490287 Treatment of substances
12/19/1984EP0128166A1 Continuous digester for the production of biomethane from organic substances.
12/18/1984US4488971 Process for even division of substances and mixtures of substances in the course of manufacture of pulverulent preparations by chemical reaction
12/05/1984EP0127604A1 Process for the pre-treatment of sludges for improving their floculation and/or dewatering behaviour in a dewatering apparatus
11/1984
11/28/1984EP0126722A2 Plant for processing organic material
11/14/1984EP0125194A1 Method of baking-dehydrating and sterilizing-dessicating organic waste, and device therefor
11/14/1984EP0124545A1 Method of forming disintegratable coherent materials and materials so formed
11/07/1984EP0123985A2 Process for the detoxication of waste water sludge
11/06/1984US4481114 Sludge dewatering system
10/1984
10/30/1984US4479879 Process for dewatering sludges
10/23/1984US4478802 Method for cleaning cyanide-bearing gas scrubbing waters produced in metallurgical industry
10/23/1984US4478518 Method for the treatment of waste sludge
10/03/1984EP0120772A1 Installations and processes for the biological purification and production of combustible gases by anaerobic two-phase fermentation
10/03/1984EP0120039A1 Recovery of solids from dispersions
10/02/1984US4474479 Adding an alkali metal silicate and a setting agent, such as portland cement
09/1984
09/26/1984EP0119988A2 Process for dewatering sludges and/or organic matter
09/26/1984EP0119987A2 Process for dewatering sludges and/or organic matter
09/19/1984EP0119079A2 Process for the treatment of industrial residual sludge
09/18/1984US4471916 Apparatus for treating liquid and semi-solid organic waste materials
09/11/1984CA1174381A1 Method for the anaerobic degradation of organic material
09/11/1984CA1174380A1 Biochemical conversion of biodegradable carbon- containing material into higher molecular weight hydrocarbon
08/1984
08/28/1984US4468463 Plant for treating manures
08/28/1984CA1173399A1 Method and device for producing carbon enriched solids from waste materials
08/15/1984EP0115898A1 A process for preparing liquid- or shock-absorbing material starting from waste sludge from the paper or board industry
08/07/1984US4464257 Apparatus for the treatment of wastewater sludge
08/07/1984US4463691 Vaporization, combustion
08/07/1984CA1172391A1 Dewatering of sewage sludges on filter presses
08/07/1984CA1172390A1 Dewatering of sewage sludges on filter presses
08/01/1984EP0048723B1 Treatment of activated or humus sludge
07/1984
07/31/1984US4462695 For processing waste material on a large scale
07/24/1984US4461743 Oxygen injection nozzle for wet oxidation reactors
07/19/1984WO1984002698A1 Apparatus for the production of methane
07/17/1984US4460628 Catalyzed wet oxidation process and catalyst useful therein
07/17/1984US4460461 Device for the regulation of a water-removing machine
07/17/1984US4460292 Process for containment of liquids as solids or semisolids
07/17/1984CA1171186A1 Continuous process for wet oxidation of aqueous waste liquors
07/10/1984CA1170790A1 Method and installation for purifying contaminating water
07/05/1984WO1984002518A1 Anaerobic fermentation
07/03/1984US4457781 Mixing with hydratable calcium sulfate
07/03/1984CA1170392A1 Waste water treatment by chelation-gelation
06/1984
06/26/1984US4456530 Apparatus for improving gravity dehydration in strainer belt presses
06/26/1984US4456400 Process of safely disposing of waste materials
06/21/1984WO1984002349A1 Continuous digester for the production of biomethane from organic substances
06/13/1984EP0110240A1 Process and apparatus for the removal of heavy metals from waste water
06/12/1984US4454259 Process for the preparation of polyaddition products of isocyanates and denatured biomasses, their use as reactive fillers and as plant nutrients and a process for the production of sheets or shaped articles using the polyaddition products
06/05/1984US4452699 Method of improving the SVI of mixed liquor in aeration tank
05/1984
05/29/1984US4451372 Method and installation for purifying contaminating water
05/15/1984US4448696 Process for recovering and recycling coagulant present in water treatment sludges
05/15/1984US4448690 Subsurface waste disposal system
05/10/1984WO1984001784A1 Method of forming disintegratable coherent materials and materials so formed
05/08/1984US4447332 In outside tank-controlled liquid evaporation then photodegradation of sludge
05/08/1984CA1167137A1 Control of anaerobic filter
05/01/1984CA1166771A1 Processing methods for the oxidation of organics in supercritical water
05/01/1984CA1166654A1 Method of pcb disposal and apparatus therefor
04/1984
04/26/1984WO1984001521A1 Process for continuous separation of polluting matter from a carrier fluid
04/25/1984EP0106258A2 Process for the continuous utilisation of refuse, particularly urban waste and sewage sludge
04/24/1984CA1166391A1 More stable mannich-based cationic polymer flocculant
04/17/1984US4443337 Biological treatment of waste water
04/12/1984WO1984001313A1 Recovery of solids from dispersions
04/10/1984US4441437 Process for thermic treatment of sludges, particularly treatment of clarification sludges
04/04/1984EP0104773A2 Apparatus and method for treating liquid and semi-solid organic waste materials
03/1984
03/20/1984US4437998 Method for treating oil sands extraction plant tailings
03/20/1984US4437417 Treatment of ferrous salt and base, precipitation of iron cyanide, and separation
03/20/1984CA1164111A1 Device for the chemical conditioning of sludges
03/14/1984EP0102436A1 Method for the treatment of organic wastes comprising the separation of toxic materials
03/13/1984CA1163571A1 Method and apparatus for dewatering sludge
03/06/1984US4435188 Anaerobic treatment of organic wastes; methane production
03/06/1984CA1163080A1 Immobilization of waste material
03/01/1984EP0054046A4 Method and equipment for the energy-saving drying especially of heat-sensitive as well as of toxic and/or smelly gas producing materials.
02/1984
02/22/1984EP0101428A2 Device for the removal of the water from water-containing materials
02/21/1984US4432666 Process for the storage and dumping of waste materials
02/21/1984CA1162666A1 Dewatering fine coal slurries using organopolysiloxanes
02/21/1984CA1162402A1 Calcining a sludge comprising calciumcarbonate
02/07/1984US4429643 Apparatus and method for treating sewage sludge
01/1984
01/24/1984CA1161175A1 Dewatering agents
01/11/1984EP0098038A1 Recovery of phosphorus from sludge
01/11/1984EP0097976A2 Burner, especially for the combustion of refuse in incineration plants
01/10/1984CA1160368A1 Treatment of clay slimes
01/03/1984CA1159970A1 Continuous agitation rapid oxidation bioconverter and method
12/1983
12/27/1983US4422940 Water treatment; oils
12/13/1983US4420320 Method of biologically drying waste material
11/1983
11/29/1983US4417976 Dewatering of petroleum-containing sludges with recovery of the oil component
11/29/1983US4417529 Method for melting and treating waste
11/29/1983CA1157970A1 Aeration system for solid biological waste
11/22/1983US4416956 Apparatus for carrying out a chemical or physical process
11/22/1983US4416780 Method to upgrade sewage treatment plants overloaded in continuous operation
11/22/1983CA1157404A1 Cultivation of phototropic bacteria
11/22/1983CA1157390A1 Belt pressure filter
11/16/1983EP0020735B1 Flash drying sludge derived fuel process
10/1983
10/26/1983EP0092146A2 Process for dewatering sludge
10/25/1983US4411797 Dewatering of sewage sludges on chamber filter presses
10/25/1983US4411203 Waste disposal
10/18/1983US4409908 Bubbling combustible gas in the presence of surfactants, and burning impurities-containing-foam
10/18/1983CA1155567A1 Dewatering fine coal slurries using two types of organopolysiloxanes