Peruraian Anaerobik Termofilik Palm Oil Mill Effluent dengan Variasi Konsentrasi Substrat

High utilization of palm oil in Indonesia corresponds to mill effluent (POME). The POME has chemical oxygen demand (COD) up 100.000 mg/L, which can pollute the ecosystem if not adequately treated. One methods manage is anaerobic thermophilic digestion. advantage this method production methane gas a form alternative energy. Substrate concentration affects This preliminary experiment aims evaluate performance digestion on various concentrations at 55 °C. was run with 16.000, 11.000 and 5.000 mg sCOD/L substrate concentrations. Digested cow manure (DCM) used as inoculum. process running continuous system after 7-days acclimatization batch system. result shows that 16.000 produced more methane, but yield statistically significant Tukey test (p=0,05). less plummeted day 85. lower due low sCOD availability high volatile fatty acid (VFA) accumulation inhibited production.