4 Conclusions
The study shows that biogas production started on the
second day, and reached apex on the sixth day for
Digester A. Production reached its peak on the seventh
day in Digester B. For Digester C, it started on the
second day and attained maximum on the fifth day. The
average gas production from 75%, 25%; 50%, 50% and
25%, 75% of poultry and cattle dung respectively was
3.84, 3.55, and 3.19 mL. A ratio of 75% : 25% and
225 g : 75 g of poultry and cow waste respectively which
described the composition of Digester A in this
experiment was found to yield the best result out of the
three digesters.