Domestic waste briquetting as refuse-derived-fuel for power plant alternative energy (case study: Bali Province)

Abstract

Mobilization and population growth caused waste generation and energy supply increments. It requires more efficient waste management and treatment methods. On the other side, the availability of fossil fuel resources decreased, it urges alternative energy sources to take place. One of the waste-to-energy implementations is using domestic waste into briquettes as refuse-derived fuel (RDF) for gasification fuel as the solutions to overcome this problem. Bali Province is one of the targets of the government's acceleration program for the construction of waste processing plants into electric energy based on Presidential Regulation 35/2018. Waste- to-energy can be applied as co-firing in power plant. This study aims to determine the potential utilization of refuse-derived-fuel as power plant at Suwung Sarbagita Landfill and Bali Province as study case. Wastes are produced into briquette as refuse-derived-fuel. The proximate test results of briquette characteristics were analyzed in laboratory. Potential utilization calculation using data of waste generation in Bali Province, briquette characteristics especially calorific value, and optimal coal and briquette ratio of co-firing process. From the calculation with assuming using Integrated Gasification Combined Cycle (IGGC) system technology with efficiency of 45%, waste in Suwung Sarbagita Landfill, Bali Province has the potential to generate electricity of 101.6 MW.