Synergistic Biogas Production: Optimizing Methane Yields from Egg-Laying Chicken, Broiler Chicken, and Cow Dung Waste Mixtures.

Sunday Onyebuchi Ukanwa (Department of Bioengineering, Cyprus International University, Mersin 10, 99010, North Cyprus.)
Joshua Tunde Olaifa (Cyprus International University)
Michael Kabash (Cyprus International University)

Journal of Bioresources and Environmental Sciences
Vol 4, No 2 (2025): August 2025

Anaerobic digestion for biogas production was assessed utilizing egg-laying chicken, broiler chicken and cow dung as co-substrate. This was demonstrated in varying reactors named R1, R2, R3, and R4 containing various proportions of egg-laying chicken, broiler chicken and cow dung with a total solid concentration of 8%. This experiment was carried out for 40 days at a temperature of 25ºC. The volatile solid and chemical oxygen demand for all the reactors were as follows; 29.1, 56.6, 44.7, and 36.6% and 54.5, 89.17, 70.1, and 64.01% respectively. R2 contains 75% egg-laying chicken and 25% cow dung gave the optimal outcomes; a methane yield of 85.4%, and VS reduction of 56.6%.