H2/L-reactor using sewage sludge. However, the
cow dung seed showed more ethanol production than hydrogen with peak concentration of
12,146 mg COD/L. Increasing the sweet potato concentration could enhance the HPR and HP values.
Maximum HY of 1.24 mol H2/mol hexose was obtained at a substrate concentration of 150 g/L with an
initial cultivation pH of 6.7 and particle diameter