Bi-Objective Benders Decomposition Model for The Optimal Location of Temporary Waste Disposal Site in Ilir Barat I Sub-District Palembang Sisca Octarina, Vira Yuriza, Putra Bahtera Jaya Bangun, Fitri Mata Puspita, Evi Yuliza
Department of Mathematics, Faculty of Mathematics and Natural Sciences, Sriwijaya University
The rise in population density in Ilir Barat I sub-district Palembang has led to waste management problems. One of the government^s methods to mitigate the problem is to provide a temporary waste disposal site (TPS). This study attempts to determine the most effective locations for TPS in Ilir Barat I sub-district through the formulation of the Set Covering Problem, which includes the Set Covering Location Problem, the Maximum Covering Location Problem, and the Bi-Objective Benders Decomposition Model. There are 27 TPS spread over 6 villages in the Ilir Barat I sub-district. The SCP model yielded 15 optimal TPS locations. The Bi-Objective Benders Decomposition model generated 27 optimal TPS in the Ilir Barat I sub-district, Palembang. As a result, this study proposes using the Bi-Objective Benders Decomposition model to identify the ideal location for TPS because it addresses all demand points.
