Scilight Press

Excessive scum formations adversely impacted on the economy, biology and functionality of the biogas plant. After the scumming events, the significant declination in overall performance of biogas plant was observed. In this research work, the critical experimentations were done on full scale biodigester from June 2017 to March 2019. The critical experimentations concluded the direct influence of the excessive scum formation on biogas generations, methane contents, pH of process and TSS contents. During the hot summer months, cold months of winters, rainy seasons and during the sudden change in a day temperatures the excessive scum formations occurred which hampered the overall performance of the biogas plant. The yield of biogas generation was reduced to 60% than normal biogas generations. The methane contents were only limited to 42%. pH was reported up to 6.1 only. Total solid contents were limited to only 1% which were expected to be 5 to 8%.