Waste to Energy Technologies using Multi-Criteria Decision Analysis for Municipal Solid Waste Management in Manila City, Philippines

In this paper, a Multi-Criteria Decision Analysis (MCDA) is utilized to provide a better strategy and increase the efficiency of solid waste management. The method aims to determine the suitable Waste-to-Energy (WTE) technology for Manila City, Philippines using a pairwise comparisons method known as Analytical Hierarchy Process (AHP). AHP utilized a hierarchy structure consists of objectives, criteria, sub criteria, and alternatives. The criteria selected were environmental, economic, technical, and sociocultural. The WTE technologies selected were anaerobic digestion, incineration, and pyrolysis. Results show that the environmental aspects with 63.80% is the chosen priority. It is followed by the economic and technical aspect with a close relative value of 14.86% and 13.32%, respectively. The sociocultural aspect is the least priority with 8.02%. Using the criteria, WTE technologies were scored and tabulated. After evaluation, it revealed that an anaerobic digester is suitable WTE technology for Manila City, Philippines. Using the chosen WTE technology, result also revealed that 249,318 m
³
biogas can be generated after 21 days.