Methane Production from Anaerobic Co-Digestion of Cow Manure and Sugarcane Bagasse Under Mesophilic Condition: Effect of Mixing Ratio

Methane production from wastes, like cow manure and sugarcane bagasse, has double benefits, minimizing these wastes and energy recovery. The research aims to enhance methane yield from anaerobic co-digestion of cow manure (CM) with sugarcane bagasse (SB) in Aswan, Egypt using different mixture ratios. Biochemical methane potential (BMP) tests were conducted in a 700-mL glass reactor under mesophilic conditions (35–37 °C). In the BMP tests, five mixtures with CM to SB ratios of 100:0, 70:30, 50:50, 30:70, and 0:100 (based on volatile solids) were performed to obtain the best mixture for optimal methane production. In the second BMP tests, the highest methane yield Was observed at a CM to Sb ratio of 30:70 (275 mL/g), higher than the individual digestion of the other used feedstock. However, the minimum methane yield was recorded at CM to SB ratio of 70:30. Statistical analysis of the results was conducted using the ANOVA test.