Abstract
The accumulation of Organic Fraction of Municipal Solid Waste (OFMSW) in landfills not only
pose threat to the environment, it may also lead to potential health hazards. Anaerobic digestion stands a very
good chance to mitigate this waste accumulation in landfills and has potential to create green jobs. BMP has
been widely studied in anaerobic digestion for the production of sustainable energy. Bioprocess control
Automatic Methane Potential Test System (AMPTS) II machine was used to set up the assays and run the
tests. OFMSW was observed to have a low pH which affects the production process and biogas yield. Buffer
solutions that were used in this study were calcium carbonate (CaCO3) and sodium hydroxide (NaOH). It was
observed that CaCO3 not only stabilizes the pH but it also gives nutrients to the microbes and thus results in
higher biogas yields. Inoculation also helped in stabilizing the process and improved the yield. The digester
with CaCO3 resulted in a higher methane yield than the others. Though CaCO3 gave good results its use was
discontinued as it has a negative impact on the environment. The BMP of OFMSW was found to be 200 ml
CH4 / g VS. The methane content was found to be on average 58%.