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

Abstract

Producing methane from wastes like sugarcane bagasse and cow manure has the dual advantages of reducing these wastes and trying to maximize energy recovery. By utilizing different mixture ratios, the research seeks to increase the methane output from the anaerobic co-digestion of cow dung (CM) with sugarcane bagasse (SB) in Aswan, Egypt. In a 700 mL glass reactor, biochemical methane potential (BMP) studies were carried out in mesophilic (35-37 °C) conditions. To find the optimum combination for the BMP tests, five mixes with CM to SB ratios of 100:0, 70:30, 50:50, 30:70, and 0:100 (based on volatile solids) were tested. In the second BMP experiments, a CM to Sb ratio of 30:70 (275 mL/g), which was greater than the individual digestion of the other used feedstock, produced the maximum methane output. The lowest methane output, however, was seen at a CM to SB ratio of 70:30. The ANOVA test was used for the results' statistical analysis.