TECHNO-ECONOMIC ANALYSIS OF WASTE-TO-ENERGY FACILITY DEVELOPMENT (CASE STUDY OF LEGOK NANGKA FINAL WASTE PROCESSING FACILITY)

• Main Author: Nur Azhar, Hanif
• Format: Theses
• Language: Indonesia
• Subjects: Teknik saniter dan perkotaan; teknik perlindungan lingkungan
• Online Access: https://digilib.itb.ac.id/gdl/view/61263
• Institution: Institut Teknologi Bandung

Municipal solid waste generation and energy demand is one of the problems that has become a global concern in the last few decades. The main factor in increasing waste generation in an area and energy demand is characterized by an increase in the population of an area, an increase in waste or energy demand per capita. This study aims to analyze the development of waste processing facilities into electrical energy through three stages, namely analysis of the development of waste processing facilities, and analysis of waste processing technology for each technological scenario. This study uses a techno-economic analysis methodology with a dynamic system approach and an economic approach with the parameters of Net Present Value (NPV), Internal Rate of Return (IRR), Profitability Index (PI) and Levelized Cost of Electricity (LCOE). Economic model with sensitivity analysis to determine the most suitable factor with the economic feasibility of thermal technology. There are three scenarios of waste processing that will be applied at the Legok Nangka Regional Final Processing Site (TPA), namely moving grate incinerator, fluidized bed incinerator and gasification with a Business as Usual (BaU) sanitary landfill without treatment as a basic comparison to the thermal treatment scenario. The results of the simulation carried out on waste generation in the service area of the Legok Nangka TPA show that the amount of waste entering the TPA increases with the increase in population and economic activity in the area which increases the per capita waste generation from 0,6 kg/person/day to 0,72 kg. /person/day. In the BaU scenario, it is known that the landfill will experience excess capacity in the 7th year compared to the scenario of processing with thermal technology which can still last up to 10 years. The gasification scenario provides a larger amount of electricity generated compared to the 2 processing scenarios with incinerator technology. In other hand, moving grate incinerator scenario provides the lowest air emissions compared to other thermal treatment technology scenarios. Economically, moving grate incinerator technology is more feasible to develop because it has higher NPV, IRR, PI values compared to other thermal treatment scenarios and the lowest LCOE.