BIOMETHANE POTENTIAL OF SELECTED FAECAL MANURE FOR DIGESTION AND CO-DIGESTION IN BIOGAS PRODUCTION

Authors: *Ajieh M.U, Muhammed J.I, Ogbeide S.E

DOI Info: N/A

ABSTRACT

Biomethane Potential (BMP) test of selected complex organic manure namely; Cow manure, Piggery manure, Poultry Manure and Human faecal manure was conducted in accordance with recommendations of the Anaerobic Biodegradation, Activity and Inhibition (ABAI). Faecal manures from cow, pig, poultry and human were collected from the Faculty of Agriculture Farm Project, University of Benin. The result of the test showed that Cow manure has a BMP of 0.2 L CH4/g VS, Pig manure 0.16 L CH4/g VS, Poultry manure 0.27 L CH4/g VS and human faecal manure 0.28 L CH4/g VS. In terms of methane yield and comparison with other substrates tested, human faecal manure has the highest BMP, followed by poultry manure. Essentially, human faecal manure and poultry manure have very high potential as feedstock for anaerobic digestion for biogas production when compared to cow and pig manure. BMP test has high reliability and validity as it is based on conditions that approximate practical anaerobic digestion processes. In other words, this test is of significant importance in predicting the biogas and methane potential of feedstock before embarking on the actual building and/or fabrication of bio-digestion process.

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