MODEL DINAMIS PENGELOLAAN SAMPAH UNTUK MENGURANGI BEBAN PENUMPUKAN

The high volume of waste generated by both industry and society is a common problem found in almost all cities, especially in big cities like Jakarta. It is influenced by purchasing power and level of population growth. This problem become more worst with the limited landfill (TPA) which are available. Therefore, it is required for an alternative waste management that can reduce waste level in TPA. The objective of this study is to analyze waste management that can reduce the waste level in TPA using simulation based on dynamic system. Simulation results will then be used to look at the feasibility of each alternative waste management based on Cost-Benefit ratio (B/C), whereas to determine the public's perception of alternative waste treatment (in terms of social, economic, environmental and technological aspects), a weighting process will be done using the Analytic Hierarchy Process (AHP). TPA Bantar Gebang which serves to accommodate waste generated by Jakarta was chosen as case study. Using simulation, projection of waste disposed to TPA Bantar Gebang for different scenarios to the year 2025 were obtained. Based on the dynamic simulation, AHP, and B/ C analysis, the study shows that the waste management should be done in two stages, first is by composting and then with incenerator.