Anaerobic Digestion of Coffee Waste by Two-Phase Methane Fermentation with Slurry-State Liquefaction

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概要

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• Anaerobic degestion of components of coffee waste was investigated. When the coffee waste was treated by a liquefaction process only, the degradation efficiency was 42%, taking into account the soluble materials that adhered to the surface of the wastem. However, in a two-phase anaerobic digestion system consisting of liquefaction and gasfication processes, the degradation efficiency increased to 70%. The components of coffee waste, namely, materials that could be eluted by a mixture of alcohol and benzene (hereafer called alcohol-benzene soluble materials), holocellulose andr lignin, were degreded by 91%, 70% and 45%, respectively. The gas yield was 451 ml/g degraded coffee waste and 28.2% of teh carbon in the waste was converted to biogas. The methane content in the gas evolved from the gasification reactor was high, being 66% (v/v).

• 社団法人日本生物工学会の論文
• 1994-03-25

著者

• Kida Kenji

  Department Of Applied Chemistry Faculty Of Engineering Kumamoto University

• Kida Kenji

  Department Of Applied Chemistry And Biochemistry Faculty Of Engineering Kumamoto University

• TESHIMA MOTOWO

  Faculty of Engineering, Kumamoto University

• SONODA YORIKAZU

  Department of Applied Chemistry, Faculty of Engineering, Kumamoto University

• TESHIMA MOTOWO

  Departmewnt of Applied Chemistry, Faculty of Engineering, Kumamoto University

• TANEMURA KOUHEI

  Yatsushiro National College of Technology

• Teshima Motowo

  Faculty Of Engineering Kumamoto University

• Sonoda Y

  Department Of Applied Chemistry Faculty Of Engineering Kumamoto University

• Sonoda Yorikazu

  Department Of Applied Chemistry Faculty Of Engineering Kumamoto University

• Tanemura Kouhei

  Department Of Bioengineering Yatsushiro National College Of Technology

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