Optimising biogas production from anaerobic co-digestion of chicken manure and organic fraction of municipal solid waste
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Publication Details
Author list: Matheri AN, Ndiweni SN, Belaid M, Muzenda E, Hubert R
Publisher: Elsevier
Place: OXFORD
Publication year: 2017
Journal: Renewable and Sustainable Energy Reviews (1364-0321)
Journal acronym: RENEW SUST ENERG REV
Volume number: 80
Start page: 756
End page: 764
Number of pages: 9
ISSN: 1364-0321
eISSN: 1879-0690
Languages: English-Great Britain (EN-GB)
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Abstract
In this study, it was observed that in experimental work under laboratory scale using conventional biochemical methane potential (BMP) assay, the loading rate ratio 4:1 had optimum biodegradability rate than other ratios which were investigated, while the loading rate ratio of 1:1 had optimum biogas and methane yield after 15 days hydraulic retention time. It was concluded that chicken waste (CM) mono-digestion has higher biodegradability rate compare to organic fraction municipality solid waste (OFMSW) mono-digestion. Co-digestion of OFMSW and CM stabilizes conditions in digestion process such as carbon to nitrogen (C:N) ratio in the substrate mixtures as well as macro and micronutrients, pH, inhibitors or toxic compounds, dry matter and thus increasing biogas production. It was concluded that the organic waste generated in the municipal landfills could be co-digested with CM to produce methane which can be used as a source of environmentally friendly and clean energy for the transport sector, industries and residential homes.
Keywords
Anaerobic, Biogas, Co-digestion, Micronutrients, Mono-digestion, OFMSW
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