Study of Remaining Service Life of a Municipal Solid Waste Landfill with the Composting Method: A Case Study in Klaten Regency

Abstract

At Troketon's Municipal Solid Waste Landfill (MSWLF), waste management adopts the controlled landfill method. The solid waste that enters the MSWLF of Troketon is increasing every day. Without processing, the incoming waste is directly dumped into a landfill. It causes the landfill capacity in the active zone to decrease so that the landfill's service life decreases faster. This study aimed to calculate the capacity of the used landfill to determine the useful life of the landfill. It also aimed to compare the service life of MSWLF with the processing and composting process. This research took place from January 2019 to May 2021. This research conducted interview techniques, and literature studies. Estimating the waste generation rate projections were based on data in 2020 by using an excel program to calculate waste reduction and its service life. The average rate of the waste generation entering MSWLF of Troketon was 0.07% per year with 48% biodegradable waste composition. The results revealed that these operating landfill zones could extend their service life by composting process. MSWLF with the composting process saves capacity by 136.99 m3/day and 712 days' longer service life than without composting.