한국축산시설환경학회지 (Journal of Animal Environmental Science)
- 제11권2호
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- Pages.97-102
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- 2005
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- 1226-0274(pISSN)
Anaerobic Biotreatment of Animal Manure - A review of current knowledge and direction for future research -
- Hong, Jihyung (Department of Industrial Machinery Engineering, Sunchon National University)
- 발행 : 2005.08.01
초록
Anaerobic decomposition is one of the most common processes in nature and has been extensively used in waste and wastewater treatment for several centuries. New applications and system modifications continue to be adapted making the process either more effective, less expensive, or suited to the particular waste in question and the operation to which it is to be applied. Animal manure is a highly biodegradable organic material and will naturally undergo anaerobic fermentation, resulting in release of noxious odors, such as in manure storage pits. Depending on the presence or absence of oxygen in the manure, biological treatment process may be either aerobic or anaerobic. Under anaerobic conditions, bacteria carry on fermentative metabolisms to break down the complex organic substances into simpler organic acids and then convert them to ultimately formed methane and carbon dioxide. Anaerobic biological systems for animal manure treatment include anaerobic lagoons and anaerobic digesters. Methane and carbon dioxide are the principal end products of controlled anaerobic digestion. These two gases are collectively called biogas. The biogas contains