Figure 4. Daily Methane production from the mono AD of the three feedstocks. CH, cowpea hull; WAS, waste-activated sludge; RS, rice straw

From

Feasibility of Biogas Production from Cowpea Hull Anaerobic Digestion: Effect of Co-digestion with Waste-activated Sludge and Rice Straw

Christian Toochukwu Ogbonna, Ondiba Hesborn Andole, Zhenya Zhang

Sustainable Energy. 2022, 10(1), 21-28 doi:10.12691/rse-10-1-2