Anaerobic Co-Digestion of Bread Waste and Sewage Sludge for Methane Production Wong Yee Ching, Nur Zulaikha Hazwani binti Johori and Hasan Abdellatif Hasan E3S Web Conf., 597 (2024) 01003 Published online: 22 November 2024 DOI: 10.1051/e3sconf/202459701003