The digestion performance of cow dung was
investigated based on the results obtained from the process
monitoring for: VS reduction, TS reduction, VS/TS ratio, COD reduction, NH3-N concentration, pH and biogas production with its methane content. Although, variations in reactor performance were observed in the early period of digestion, the observed pH of 6.65-7.81 were primarily within the acceptable range for anaerobic digestion for the entire operations