Semi-continuous co-digestion of solid slaughterhouse waste, manure, and fruit and vegetable waste
The potential of semi-continuous mesophilic anaerobic digestion (AD) for the treatment of solid slaughterhouse waste, fruit-vegetable wastes, and manure in a co-digestion process has been experimentally evaluated. A study was made at laboratory scale using four 2L reactors working semi-continuously at 35°C. The effect of the organic loading rate (OLR) was initially examined (using equal proportion of the three components on a volatile solids, VS, basis). Anaerobic co-digestion with OLRs in the range 0.3–1.3kgVSm−3d−1 resulted in methane yields of 0.3m3kg−1VS added, with a methane content in the biogas of 54–56%. However, at a further increased loading, the biogas production decreased and there was a reduction in the methane yield indicating organic overload or insufficient buffering capacity in the digester.
Year of publication: |
2008
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Authors: | Alvarez, René ; Lidén, Gunnar |
Published in: |
Renewable Energy. - Elsevier, ISSN 0960-1481. - Vol. 33.2008, 4, p. 726-734
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Publisher: |
Elsevier |
Subject: | Anaerobic | Biogas | Co-digestion | Manure | Slaughterhouse waste | Vegetable waste |
Saved in:
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