Environmental impact evaluation of existing solid waste management practices in Padang pariaman regency using life cycle assessment (LCA).

This study aims to evaluate the environmental impact of the waste management system in Padang Pariaman Regency using the Life Cycle Assessment (LCA) and to provide solutions for improving waste management to make it more environmental friendly. The assessment was carried out in the 2025 Planning Year with 259.89 tons/day of waste generation. 1.31% of the total waste is transported to the landfill with open dumping method without processing, 0.04% of waste is processed in one waste bank and the remaining 98.65% of waste is burnt, disposed of land or buried in the yard by the generator of waste. LCA analysis using the CML-IA Baseline impact assessment method. The impact categories studied include Global Warming Potential (GWP), Acidification Potential (AP), and Eutrophication Potential (EP). The boundary of the study covers the technical and operational aspects of waste, energy, materials, and emissions. Based on the results of the LCA analysis of the existing waste management system, the GWP impact value was 3,063,311,800 kg CO2 eq., and the AP impact value was 1,000,232 kg SO2 eq.. The highest Eutrophication Potential (EP) impact value was 69,245,923 kg PO4 eq. The most significant impact contribution from each environmental impact studied came from landfilling activities using the open dumping method. The recommendation to improve the waste management system in Padang Pariaman Regency is to expand the service area rate, sort the containers, collect and transport waste processing, and final processing of waste with a sanitary landfill system. [ABSTRACT FROM AUTHOR]