Evaluation of biogas production from co-digestion of pig dung, water hyacinth and poultry droppings

In this study, biogas production from co-digestion of pig dung, water hyacinth, and poultry droppings was investigated. 500 ml bio-digesters were connected in series and water displacement method was used to estimate the amount of biogas produced. The ratio of the percentage weight distribution of pig dung to water hyacinth to poultry dropping was varied as: (0:40:60), (30:40:30), (15:40:45), (45:40:15), and (60:40:0) in digesters A1, B2, C3, D4 and E5, respectively. The highest biogas cumulative yield of 307 cm 3 CH 4 /g was obtained in Digester C3. The gas chromatography analysis showed 22.50 wt% (CO 2 ), 64.92 wt% (CH 4 ) and 4.83 wt% (N 2 ) which implied that the biogas produced can be used for cooking and heating of homes in rural and urban communities.