Treated swine water as amendment for coffee ground composting system Camelia Choi Lam Ng, Kar Weng Koh, Lai Peng Wong, Xinxin Guo and Ling Yong Wong E3S Web Conf., 603 (2025) 04020 Published online: 15 January 2025 DOI: 10.1051/e3sconf/202560304020