ANALYSIS OF ACID MINE WATER MANAGEMENT USING QUICK LIME IN COAL MINING AT PT BAKTI NUGRAHA YUDA
Keywords:
Acid Mine Drainage, Coal, Quicklime, Mining, MineAbstract
The coal mining industry operated by PT Bakti Nugraha Yuda produces acid mine drainage, the management of which is crucial to prevent environmental pollution. The main problem faced is the high acidity level of the wastewater, with an initial pH ranging from 4.3 to 5.1, which is below the government's environmental quality standards that require a pH above 6. This study aims to analyze the effectiveness of using quicklime as a neutralizing agent to manage acid mine drainage at the site. This research includes quantitative research with case study research methods and analytical experiments with jar test laboratory tests and periodic pH measurements in two Sludge Settling Ponds (KPL 1 and KPL 2). The results showed that quicklime is very effective. Doses between 0.6 and 1 gram per liter successfully increased the water pH from an initial condition of around 4.5 to within the range of 7 to 8.9, in accordance with quality standards. Linear regression analysis at KPL 1 also showed a very strong correlation (R² = 0.9988) between the dose given and the increase in pH.
References
Adha, C. W., Ramli, M., & Thamrin, M. (2018, January). Analisis Efektivitas Kapur Tohor dan Zeolit Untuk Peningkatan pH dan Penurunan Kandungan Logam Fe dan Cu Pada Pengolahan Air Asam Tambang. In Seminar Nasional Rekayasa Tropis 2024 (Vol. 1, No. 1, pp. 43-51).
Ambarsari, I. S., Sunandar, S., & Setiawan, M. D. (2023). Kajian Pengolahan Air Asam Tambang Menggunakan Kapur Tohor (Ca (OH) 2) di Kolam Pengendapan Lumpur (Settling Pond) Daerah Kalimantan Selatan. Mining Science And Technology Journal, 2(2), 91-96. https://doi.org/10.54297/minetech-journal.v2i2.482
Amsya, R. M., Zakri, R. S., & Fiqri, M. R. (2021). Analisis pengaruh penggunaan fly ash dan kapur tohor pada penetralan ph air asam tambang di PT. Mandiangin Bara Prima. Jurnal Sains Dan Teknologi: Jurnal Keilmuan Dan Aplikasi Teknologi Industri, 21(1), 109.
Assyakiri, M. R. A. F., Rahmi, H., & Neris, A. (2022). Kebutuhan dosis kapur tohor dalam penetralan air asam tambang KPL pit 1 timur banko barat PT Bukit Asam. Humantech: Jurnal Ilmiah Multidisiplin Indonesia, 2(Spesial Issues 1), 292-301.
Awalia, N. A., & Marzuki, I. (2025). Pemanfaatan Campuran Zeolit Dan Limestone Untuk Menurunkan pH Air Asam Tambang Pada Pengujian Skala Laboratorium. ILTEK: Jurnal Teknologi, 20(01), 13-17. https://doi.org/10.47398/iltek.v20i01.223
Dewi, I. S., Indrajaya, F., Sukmawatie, N., & Iashania, Y. (2024). Pengaruh Kapur Tohor dan Zeolite Pada Air Tambang di PT. Marunda Grahamineral. Cerdika: Jurnal Ilmiah Indonesia, 4(4). https://doi.org/10.59141/cerdika.v4i4.784
Gobel, A. P., Athiyya, N., Thereza, N., Ilham, M. H., & Van Gobel, C. (2025). Optimasi Penggunaan NaOH dan Poly Aluminium Chloride pada Pengolahan Air Asam Tambang Batubara, Tanjung Enim, Sumatera Selatan. INSOLOGI: Jurnal Sains dan Teknologi, 4(3), 528-536. https://doi.org/10.55123/insologi.v4i3.5346
Kusdarini, E., Sania, P. R., & Budianto, A. (2024). Netralisasi Air Asam Tambang Menggunakan Pengolahan Aktif dan Pasif. Jurnal Ilmu Lingkungan, 22(3), 808-815. https://doi.org/10.14710/jil.22.3.808-815
Matofani, M., Rianti, L., & Pratama, I. S. (2025). Analisis Teknis dan Ekonomis Pada Pengelolaan Air Asam Tambang Menggunakan Kapur Tohor di Kpl 01 Al Cik Ayib Pt Bukit Asam, Tbk. Jurnal Cakrawala Ilmiah, 4(5), 595-608. https://doi.org/10.53625/jcijurnalcakrawalailmiah.v4i5.9527
Prastyo, A. E., Virgiyanti, L., Ganang, N. M. A., Sukmawatie, N., & Fidayanti, N. (2024). Analisis Biaya Penggunaan Kapur dan Tawas pada Pengolahan Air Asam Tambang di Settling Pond 03 Pit Paku PT. Rimau. Jurnal sosial dan sains, 4(10), 1058-1067. https://doi.org/10.59188/jurnalsosains.v4i10.23508
Putri, S. A. N., Virgiyanti, L., Fidayanti, N., Sukmawatie, N., & Novalisae, N. (2025). Perhitungan Kebutuhan Kapur Tohor Terhadap Kenaikkan pH Air Limbah Tambang Pada Settling Pond PT. Marunda Grahamineral Kecamatan Laung Tuhup Kabupaten Murung Raya Provinsi Kalimantan Tengah. Innovative: Journal Of Social Science Research, 5(4), 9538-9547. https://doi.org/10.31004/innovative.v5i4.21069
Rahmi, H., Nelvi, A., & Situmorang, B. (2023). Pengaruh Fly Ash Dan Kapur Tohor Terhadap Kualitas Air Asam Tambang (pH dan TSS) Di PT. Bara Prima Pratama. Jurnal Teknologi Infrastruktur, 2(1), 35-43. https://jurnal.upb.ac.id/index.php/ft/article/view/356
Sari, E. N., Pratiwi, Y., & Nursani, R. (2024). Proses Pengolahan Air Asam Tambang Metode Aktif Pasif di PT Bukit Asam, Tanjung Enim, Sumatera Selatan. Unpra Engineering Journal, 1(1), 15-18. https://ejournal.unpra.ac.id/index.php/uej/article/view/258
