ENVIRONMENTAL RISK ASSESSMENT OF SARIMUKTI WASTE LANDFILL POSTFIRE

• Main Author: Maulidya, Nisrina
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik saniter dan perkotaan; teknik perlindungan lingkungan
• Online Access: https://digilib.itb.ac.id/gdl/view/84662
• Institution: Institut Teknologi Bandung

Waste management remains a significant challenge in Indonesia, one of ASEAN's largest waste producers, generating about 64 million tons annually (UNEP, 2017). Indonesia aims for 100% well-managed waste in urban areas, focusing 80% on transportation and 20% on reduction, while transitioning to processing-based waste management. Despite various solutions, significant progress is elusive. Waste pollution, including unsightly waste, foul odors, and harmful leachate, negatively impacts the environment. The Sarimukti Waste Landfill fire, caused by discarded cigarette butts during the dry season, exacerbated the situation, affecting over 15 hectares across four zones. An environmental quality evaluation using an Integrated Risk Based Approach (IRBA), as per the Regulation of the Minister of Public Works Number 03/PRT/M/2013, is essential before deciding on rehabilitating or closing the landfill. This study characterizes waste during a fire disaster, assesses leachate quality in the Sarimukti Landfill treatment plant, and conducts a rapid environmental assessment using the IRBA method to determine landfill feasibility. Burnt waste had an average water content of 10.41%, volatile content of 49.04%, ash content of 50.95%, fixed carbon of 31.05%, and a calorific value of 3391.19 cal/g. Metal content included Cu at 1.63 mg/kg, Pb at 0.37 mg/kg, and Zn at 4.85 mg/kg. Leachate quality exceeded standards for BOD, COD, and NTotal, while pH, TSS, mercury, cadmium, and MBAS were within acceptable limits. The final Environmental Risk Index assessment resulted in a very high hazard evaluation of 620.53, indicating the immediate closure of the landfill due to significant environmental and social impacts.