Optimizing Waste Management: Reduction Potential Analysis in Pakis Sub-District TPS, Malang Regency

The growing volume of waste presents substantial management issues, especially under the current collect-transport-dispose paradigm, which frequently results in overburdened temporary disposal sites (TDS or TPS) especially in Malang Regency since there is no waste reduction prior to the TDS. Organic waste, as the significant fraction in the waste, was the focus in the study. Mass Balance Analysis is used to calculate the Recovery Factor (RF) in TDS used for calculating the waste reduction potential in four TDS in Pakis Sub-district, Malang Regency through scenario. Two scenarios were used in the study focusing on potential of waste reduction increase, i.e. maintaining RF and changing RF in TDS for the first and the second scenario respectively. The results showed that the first scenario expanding service area still have the same capacity for waste reduction though the increasing waste input. Meanwhile, the second scenario, which increases the RF, can decrease 36% waste transported into TDS. These results highlight the effectiveness of maggot-based organic waste processing in achieving waste reduction targets, offering a scalable model for sustainable waste management.