51
John H Mulholland: Apparatus and method for treating sewage sludge. 456577 Ontario, February 7, 1984: US04429643 (22 worldwide citation)

Sludge is dried in a dryer and burned in a furnace, the dryer being heated by heat from the furnace using a heat exchanger so that contaminants from furnace hot gas do not pass into the dryer. Gas given off from the dryer is in part mixed with fresh air and circulated back to the dryer, and is in pa ...


52
Salomoni Cesarino, Petazzoni Enrico: Co2 capture and use in organic matter digestion for methane production. Salomoni Cesarino, Petazzoni Enrico, DE ROS Alberto, October 19, 2006: WO/2006/108532 (22 worldwide citation)

A process to provide an alternative to CO2 sequestration in depleted gas or oil fields is presented. An integrated process combining a first module, for capturing and separating CO2 from exhaust gases, with a second module, for exploiting the captured CO2 in the anaerobic digestion of organic matter ...


53
Berend A Rijkens: Method for the anaerobic digestion of solid organic waste. Instituut voor Bewaring en Verwerking van Landbouwprodukten, Brumbaugh Graves Donohue & Raymond, August 23, 1983: US04400195 (21 worldwide citation)

The present invention relates to a method wherein solid organic waste originating from plants or animals or both, is digested by an anaerobic fermentation, that is less labor, time and space consuming than the conventional aerobic fermentation method, and may be performed with waste that has not to ...


54
John Kelyman: Anaerobic digestion process. Beloit Corporation, Dirk J Veneman, Raymond W Campbell, July 11, 1989: US04846975 (21 worldwide citation)

A process for treating waste material is disclosed wherein the initial steps are performed in the dry stage including the removal of dirt, metallic and glass materials, and separation of the dry materials and thereafter passing the materials through a horizontal rotary pulp separating mechanism whic ...


55
De Baere Luc: Process and installation for anaerobic digestion.. Acec, January 16, 1985: EP0131319-A1 (21 worldwide citation)

Dans un procédé de traitement de matières organiques comprenant une phase de préparation dans laquelle des matières organiques à digérer sont mélangées avec un inoculant approprié et introduit dans un digesteur anaérobie (6), les matières organiques sont mélangées à l'inoculant dans un mélangeur (3) ...


56
Donald L Klass, Sambhunath Ghosh, John R Conrad: Anaerobic digestion with liberated enzyme biomass fractions. Institute of Gas Technology, Dominik Knechtel Godula & Demeur, November 30, 1976: US03994780 (20 worldwide citation)

An improved anaerobic digestion of organic biomass by rupturing cells of microorganisms present in a digested biomass or untreated biomass fraction undergoing digestion to obtain a treated biomass fraction having liberated indigenous enzymes in place; and contacting such treated biomass fraction wit ...


57
George Valkanas, Apostolos G Vlyssides: Industrial utilization of garbage with effective recycling and with optimization in energy production. Innoval Management, Birch Stewart Kolasch & Birch, January 2, 2001: US06168642 (18 worldwide citation)

A recycling process for garbage containing a high proportion of paper where printed paper is first separated from the garbage. The garbage is then into pieces and light and heavy components are separated out in a classification tank. The remaining organic mass suspended in water is hydrolyzed and su ...


58
Hendrik M Bremmer: Apparatus for the anaerobic fermentation of organic waste material such as liquid manure. Corite Investments, Hopgood Calimafde Kalil Blaustein & Judlowe, April 1, 1986: US04579654 (18 worldwide citation)

An apparatus for the anaerobic digestion of organic waste material such as manure in liquid condition include bringing the waste material in an acidification space with a roof collecting gas generated thereby and one or more openings below said roof giving access from said space to a methane ferment ...


59
Amirali G Rehmat, Anthony L Lee, Michael C Mensinger, Anil Goyal, S Peter Barone: Conversion of sewage sludge into electric power. Endesco Clean Harbors L L C, Mark E Fejer, June 25, 2002: US06410283 (18 worldwide citation)

A method for generating electricity in which sludge is anaerobically digested to form a gas mixture of methane and carbon dioxide and a residue of digested sludge. Water is removed from the digested sludge to form dewatered sludge, which, in turn, is gasified to form a gaseous composition which incl ...


60
Robert Paton: Anaerobic digestion of organic waste for biogas production. Biorganic Energy, Roylance Abrams Berdo & Goodman, January 31, 1984: US04429043 (17 worldwide citation)

A low solids aqueous suspension of organic waste is treated in at least four, e.g., six serial anaerobic zones at a temperature of less than 40.degree. C. and under quiescent conditions to provide methane, fertilizer and a clean liquid effluent.



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