AN IMPROVED PROCESS FOR THE SIMULTANEOUS PRODUCTION OF BIOGAS AND FERTILLIZER BY HIGH RATE BIOMETHANATION OF PALM OIL MILL EFFUENT

摘要

The present invention provides anaerobic digestion of palm oil mill effluent POME has been carried through two-step process. The organic material present in the waste matter is ultimately converted in to methane. The whole process is carried out initially under microaerophilic conditions in an acidogenic digester and subsequently under strictly anaerobic conditions at neutral pH in the methanogenic digester. Hydrolysis of complex organic matter present in POME and its further acidogenesis is carried out by a consortia of microbes present in fresh cattle dung.