Apparatus and process for producing biological energy source by household organic waste and sludge

Abstract

The invention discloses an apparatus for producing biological energy source by organic waste and sludge. The apparatus comprises a biological reaction tower, the inner cavity of the reaction tower is divided into a plurality of separate functional spaces vertically by separation plates; the inner cavity of the reaction tower is provided with a vertical stirring shaft provided with a plurality of stirring blades which are respectively disposed in the separate functional spaces; the separation plates are fixed on the inner cavity of the reaction tower; and the separation plates are provided with through holes. A process for producing the biological energy source comprises 1, hydrolysis reaction: polysaccharides are decomposed into soluble monosaccharides under the effect of anaerobic bacteria; 2, acidification reaction: the soluble monosaccharides are absorbed and acidified into organic acids, alcohols, hydrogen and carbon dioxide by fermentation bacteria in the sludge; 3, gasification reaction: organic acids, hydrogen and carbon dioxide are subjected to the biochemical treatment by methane bacteria to generate methane; and 4, gas-residue separation: methane gas in solid residue rises and is discharged, and the solid residue is discharged downward, under extrusion of horizontal spiral vanes. The apparatus and process are short in gas production time, high in efficiency, high in gas production rate and good in solid-gas separation effect.

Description

Technical field: [0001] The invention relates to the field of environmental protection and energy, in particular to a device and a process for producing bio-energy from domestic organic waste (D.R-org) and sludge. Background technique: [0002] Urban domestic organic waste (D.R-org) and a large amount of sludge produced by sewage treatment have always been a difficult problem for urban management. How to reduce the volume, volume, harmlessness, At present, there is no perfect technology for resource utilization. The key to producing bioenergy from domestic organic waste (D.R-org) and sludge produced by sewage treatment is bioreaction equipment and bioreaction process. The structure of traditional bioreaction equipment is unscientific, hydrolysis, The acidification and gasification processes are carried out at the same time, the biochemistry is incomplete, the gas production time is long, and the efficiency is low; the solid-gas separation effect is poor, and the biological r...

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Problems solved by technology

[0002] Municipal domestic organic waste (D.R-org) and a large amount of sludge produced by sewage treatment have always been a difficult problem for urban management. How to reduce the volume, volume, harmlessness, At present, there is no perfect technology for resource utilization. The key to producing bioenergy from sludge produced by domestic organic waste (D.R-org) and sewage treatment is bioreaction equipment and bioreaction process. The structure of traditional bioreaction equipment is unscientific, hydrolysis, The acidification and gasification processes are carried out at the same time, the biochemical process is incomplete, the gas production time is long, and the efficiency is low; the solid-gas separation effect is poor, and the biological reaction process is also backward

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