Showing papers on "Biogas published in 1976"
TL;DR: In this paper, the authors investigated the feasibility of converting municipal solid waste and sludge solids to fuel gas at high total solids concentration in an unstirred nuclear power plant.
60 citations
Patent•
12 May 1976TL;DR: In this article, a system for treatment of biochemical waste such as activated sludges, the waste is subjected to anaerobic stabilization processes, which include two phases of an acid fermentation and a methane fermentation effected in separate reactors.
Abstract: In a system for treatment of biochemical waste such as activated sludges, the waste is subjected to anaerobic stabilization processes, which include two phases of an acid fermentation and a methane fermentation effected in separate reactors. The waste after the acid fermentation is then separated into a liquid effluent for the methane fermentation and a waste sludge. The waste sludge which may cause secondary environmental pollution is re-treated within the anaerobic stabilization processes without withdrawing from the system.
51 citations
15 Dec 1976
48 citations
Patent•
03 Sep 1976
TL;DR: In this article, a system for the manufacture of methane gas from sewage sludge or other organic waste comprises a digester tank system, a solar heating unit and conduit means to use hot air from the solar heater to heat the digester tanks.
Abstract: Apparatus for manufacture of methane gas from sewage sludge or other organic waste comprises a digester tank system, a solar heating unit and conduit means to use hot air from the solar heater to heat the digester tanks. The new methane gas manufacture methods provided by the apparatus operate with water slurries of organic waste at a temperature of about 100° - 140° F to produce about 11 cu. ft. of gas per pound of organic waste and a dewatered residue that may be used as fertilizer.
40 citations
29 citations
TL;DR: Although both in nature and in conventional anaerobic decomposition process plants, acidification and gas production occur simultaneously, the rates of methane production and waste stabilisation can be enhanced by arranging that the process occurs in two stages.
5 citations
TL;DR: In this article, the direct energy inputs on beef and dairy farms were determined and compared with the potential biogas production from the anaerobic digestion of the animal manures.
Abstract: THE direct energy inputs on beef and dairy farms were determined and compared with the potential biogas production from the anaerobic digestion of the animal manures. The equipment required for utilizing the biogas as a replacement for conventional energy forms was reviewed. An assessment of technical and economic feasibility was made.
1 citations