Analisis Potensi Utilisasi Sampah di Tempat Pembuangan Akhir (TPA) Kota Metropolis: Suatu Pendekatan Model Berbasis Sistem Dinamik (Study Kasus: TPA Kota Surabaya)
Analysis of Waste Utilization in Final Disposal Site (FDS) for Metropolis City: A System Dynamic Approach (Study case: FDA's Surabaya)Waste is a global problem that requires special attention. Surabaya which is one of the second largest metropolis city in Indonesia is not immune to these problems. The increasing number of urban dwellers, the greater the amount of waste generated. Surabaya city waste system boils down to the Final Disposal (TPA) located in District Benowo increasingly mounting. In this study, created a dynamic mode that runs the current conditions in the landfill and trash utilization alternatives that can be considered one of the strategic proposal for the city government in dealing with the production of the higher junk. Based simulation models, it was found that in the next 10 years the amount of waste in the landfill has reached 1,000,000 tons from 416,000. Proposals drawn up strategic utilization, such as the utilization of methane gas as a result of the decomposition of organic waste. based simulation model of dynamic, during 10 years of waste in landfill produces methane, an average number of 6.86 thousand tons per day. Methane gas is an alternative to fossil fuel energy. The amount of methane per day, equivalent to the energy potential of billion dollars worth of 54.65-66.8.