• R.ARUNNIVAS
• S.MOHAN

Solid state anaerobic digestion of manually sorted organic fraction of municipal solid waste with high solid content (20%) was investigated inthe pilot scale reactor under thermophilic condition (550c) to retrieve renewable energy like biogas. This paper concerns the results of simulation of startup phase of the reactor which was conducted over a period of 4 weeks in a batch process. The fresh organic fraction municipal solid waste (OFMSW) were collected and loaded in to the reactor as a feedand it was blended with two different inoculums ofcow dung and anaerobic sludge with mixing proportion of 2:1ratio which is of 30% of the weight of total feed. Firstly the reactor was operated in mesophilic condition (370c) and was shifted to thermophilic (550c) condition by gradually increasing the temperature rate by 20c per day. During the startup phase the gas production was fluctuated initially and gradually increased fromthe day of 9 to 19 and the highest gas production of 223L/d and the highest methane composition of 63% were achieved at the same day.In this study, the variations and trends of different parameters such as pH, Alkalinity and COD during start up process were discussed.

Anaerobic digestion, fermentation, Inoculum, Organic fraction municipal solid waste, Thermophilic.

"START-UP PHASE OF SOLID-STATE ANAEROBIC FERMENTATION OF SORTED MUNICIPAL SOLID WASTE IN THERMOPHILIC CONDITION", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.262-268, May-2019, Available :http://www.jetir.org/papers/JETIR1905C38.pdf

"START-UP PHASE OF SOLID-STATE ANAEROBIC FERMENTATION OF SORTED MUNICIPAL SOLID WASTE IN THERMOPHILIC CONDITION", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp262-268, May-2019, Available at : http://www.jetir.org/papers/JETIR1905C38.pdf