TITLE:
Biogas Production from the Co-Digestion of Cornstalks with Cow Dung and Poultry Droppings
AUTHORS:
I. J. Ona, S. M. Loya, H. O. Agogo, M. S. Iorungwa, R. Ogah
KEYWORDS:
Biogas Production, Anaerobic Co-Digestion, Agricultural Residues
JOURNAL NAME:
Journal of Agricultural Chemistry and Environment,
Vol.8 No.3,
August
16,
2019
ABSTRACT: The Anaerobic digestion of Corn Stalk (CS) with Cow Dung (CD) and Poultry
Droppings (PD) was investigated. Batch mono-digestion and Co-digestion
experiments were performed with initial total solid loading of 37.5%. The main
objective of this work was to investigate the biogas yield at different CS to
CD ratios and CS to PD ratios. Results show that the highest Cumulative Gas Yield
(CGY) of 6833 mL/g of biomass was achieved in 21 days for CS-CD ratio of 2:1.
Similarly high CGY of 6107 mL/g, 6100 mL/g and 5333 mL/g were obtained for
CS-PD ratio of 2:1, CS-CD ratio of 1:1 and CS-PD ratio of 1:1 respectively.
It is concluded that co-digestion of Cow dung or poultry droppings is
beneficial for improving bio-digestibility and Biogas yield from corn stalk. The
results of this work provide useful information to improve the efficiency of
co-digestion of CS with CD and PD under anaerobic conditions.