Year: 2026 | Month: January | Volume: 13 | Issue: 1 | Pages: 83-93
DOI: https://doi.org/10.52403/ijrr.20260109
Performance Evaluation of the Leachate Treatment Plant at the Bongkang Landfill in Tabalong District
Ilham Ansyarul Hakim1, Irma Febrianty2, Rizqi Puteri Mahyudin3, Achmad Syamsu Hidayat2
1Natural Resources and Environmental Management Study Program, Lambung Mangkurat University
2Fisheries Socio-Economics Study Program, Lambung Mangkurat University
3Environmental Engineering Study Program, Lambung Mangkurat University.
Corresponding Author: Ilham Ansyarul Hakim
ABSTRACT
The performance of the Leachate Treatment Plant (LTP) is crucial to ensure that leachate meets the quality standards in Regulation No. P.59/2016 and to support the national targets of 30% waste reduction and 70% managed waste by 2025 (Presidential Regulation No. 97/2017). Without proper leachate treatment, waste management at landfills can cause secondary environmental problems. At the Bongkang Landfill in Tabalong District, an LTP has been installed, but its effectiveness in treating leachate has not yet been comprehensively evaluated. This study focuses on removal efficiency of BOD, COD, TSS Total Nitrogen, Mercury and Cadmium, with the aim of Analyzing the efficiency performance of the wastewater treatment plant (WWTP) since it began operating until it reached saturation point to determine the decline in its ability to treat leachate. Water samples were taken at the inlet and outlet of the Bongkang landfill using a collection method involving sample bottles, and were then analysed at an accredited laboratory in accordance with the research parameters. The result shows that the removal efficiency of WWTP in 2024 is still within a good range, with showing effective performance with fairly high BOD, COD, TSS, and total nitrogen removal efficiencies. However, the drastic decline that occurred in 2025 indicates that the system has reached saturation, where biological and physical processes are no longer optimal. The decline occurs in almost all leachate treatment parameters, especially BOD and COD, which are the main indicators of leachate treatment quality. It is recommended that routine maintenance and optimisation of the treatment system at the Bongkang landfill be carried out to maintain removal efficiency above 70%.
Keywords: Leachate Treatment Plant, Bongkang Landfill, Removal Eficiencyz.
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