Riskya Azhar, Ahmad Daudsyah Imami, Rifka Noor Azizah, Dion Awfa
The Enim River is a water body that receives the results of acid mine drainage from coal mining activities, so it is necessary to monitor the water quality of the Enim River to determine the effect of coal mining wastewater on river water quality. Water sampling was carried out using the grab sampling method at 4 sampling points in the Enim River and 4 outfall points where acid mine drainage from processing enters the Enim River. Determination of the pollution load capacity was carried out using QUAL2Kw for the TSS parameter and mass balance for the Fe and Mn parameters. Based on the results of the analysis of the characteristics of acid mine drainage from the four outlets of the Sludge Settlement Pond (KPL), the pH, TSS, Fe, and Mn parameters meet the wastewater quality standards (Minister of Environment Decree No. 113 of 2003). The results of the analysis of the water quality of the Enim River show that only the pH parameter still meets the quality standards. In contrast, the TSS, Fe, and Mn parameters do not meet the class I water quality standards (PP RI No. 22 of 2021). The Enim River pollution load capacity results for the TSS, Fe, and Mn parameters were − 1,101,710.95 kg/day, − 4,317.13 kg/day, and − 13,558.94 kg/day. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.
Environmental Engineering Program, Institut Teknologi Sumatera, Lampung Selatan, Lampung, Indonesia
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