TY - CPAPER AU - Zhane Ann Tizon AU - Louise Grace Avena AU - Jaira Neibel Bamba AU - Michelle Almendrala AU - Ralph Carlo Evidente TI - A REVIEW ON BIOGAS PRODUCTION BASED ON CIRCULAR ECONOMY VIA CO-DIGESTION AND IMMOBILIZED SUBSTRATES T2 - SGEM International Multidisciplinary Scientific GeoConference- EXPO Proceedings; 22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Energy and Clean Technologies, VOL 22, ISSUE 4.2 PY - 2022 SP - 483 EP - 494 DO - 10.5593/sgem2022v/4.2/s17.60 PB - STEF92 Technology ER -