61
Roderic Johansen: Composting bin apparatus with U-shaped connecting members. Robert M Bellomy, October 1, 1991: US05052570 (20 worldwide citation)

The present invention relates to composting bins assembled from at least one elongated sheet of semi-rigid, flexible material with a means for locking the near and far ends of the elongated sheet together while the near and far ends overlap to form the enclosed space for containing decomposing organ ...


62
Steven B Mullerheim, Fred G Williams Jr: Filtration with a compostable filter medium. Great Circle Associates, Thomas M Freiburger, January 30, 1979: US04137062 (20 worldwide citation)

A method and apparatus for treating wastewater such as sewage are disclosed. Designed principally for complete on-site wastewater treatment and disposal, the system separates wastewater into liquid wastes and solid wastes by filtration, treats the liquid wastes with a mild oxidizing agent and disper ...


63
Stephen Varro: Process of conversion of solid waste into workable material with predetermined characteristics and/or into fertilizers or soil improving agents. Staas & Halsey, September 27, 1977: US04050917 (20 worldwide citation)

A process for composting waste material by controlling the amount of aeration, the pH value of the moisture content and the temperature of the material during composting. The resulting material has a pH value of approximately 7.3 and a moisture content within the range of 10-30%. The carbon-nitrogen ...


64
Griffin Gordon Douglas: Form of tined shaft and constructions of composting machine. Parmelee Miller Welsh & Kratz, February 12, 1974: US3791593 (20 worldwide citation)

A composting machine for stacking compost material comprising a wheeled frame having a conveyor or roller for feeding the material towards the rear of the machine at a low velocity onto sets of rapidly rotatable members. These members are angled relatively to the central vertical plane of the machin ...


65
Jurgen Kanitz, Bruno Kesselring: Device and process for composting and wet fermentation of biological waste. Beg Bioenergie, Herbert Dubno, July 21, 1998: US05782950 (20 worldwide citation)

Biological waste is squeezed out while being at the same time mixed and homogenized, after which the solid materials freed of liquid are delivered to a composting installation and the liquid fraction is directed to an anaerobic reactor for wet fermentation. Thereby shorter composting and fermentatio ...


66
Charles M Murray, Joel L Thompson, Lawrence H Hentz Jr: Methods for removing odors from process airstreams. Washington Suburban Sanitary Commission, Millen White & Zelano, February 19, 1991: US04994245 (20 worldwide citation)

After aerating sewage sludge in a composting process, a stream of process air is treated to remove odors therefrom by injecting into the airstream an atomized mixture of dilute sulfuric acid and dilute surfactant to remove ammonia and odorous organic compounds therefrom. The airstream is then oxidiz ...


67
R Edward Burton: Organic waste recycling system and method. Advanced Bio Gest, Flehr Hohbach Test Albritton & Herbert, August 31, 1993: US05240611 (19 worldwide citation)

System and method for converting and recycling liquid-borne organic waste materials from a processing plant. The waste material is passed through a compost bed containing a fecal material which processes the organic waste biologically, removes liquid from the waste by adsorption and absorption, and ...


68
Richard N Young, Thomas J Irwin II: Methods and apparatuses for rapid composting with closed air loop circulation for positive control. DBS Manufacturing, Needle & Rosenberg P C, January 7, 1997: US05591635 (19 worldwide citation)

A reaction vessel for biologically decomposing a material comprises a frame, an airtight housing rotatably mounted on the frame defining an enclosure therein, and a device for controlling environmental conditions within the enclosure so that biological decomposition of the material can occur at a co ...


69
Davidson Jr William, Kauffman Charles H: Converting municipal refuse into compost. Kauffman Charles H, Rook Harry B, July 29, 1975: US3897215 (19 worldwide citation)

Municipal refuse including glass articles, metal cans, paper, plastics and wood, is dumped onto a conveyor and has magnetic materials removed therefrom and the remaining refuse conveyed to a hammermill which reduces the refuse into small particles which are conveyed by positive air pressure to the u ...


70
Steven B Mullerheim, Fred G Williams: Wastewater treatment with ultraviolet disinfection and increased capacity. Great Circle Associates, Owen Wickersham & Erickson, October 21, 1980: US04229202 (18 worldwide citation)

A method and an apparatus for treating wastewater such as sewage are disclosed. Designed principally for complete on-site wastewater treatment and disposal, the system separates wastewater into liquid wastes and solid wastes by filtration, treats the liquid wastes with ultraviolet radiation and disp ...