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All Journal Journals Mining Engineering : Bina Tambang Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Sains dan Teknologi: Jurnal Keilmuan dan Aplikasi Teknologi Industri Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat TEKSTUR : Jurnal Teknologi Infrastruktur Jurnal Keilmuan dan Aplikasi Teknologi Industri Jurnal Keilmuan dan Aplikasi Teknologi Industri
Afni Nelvi
Sekolah Tinggi Teknologi Industri Padang
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Medicine & Pharmacology Public Health Transportation

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Penurunan Kadar Fe Dan Mn Menggunakan Kapur Tohor (CaO) Pada Penetralan Air Asam Tambang Yolno Vernando; Afni Nelvi; Ahmad Fadhly; Dian Hadiyansyah; Hisni Rahmi
Jurnal Teknologi Infrastruktur Vol 7 No 02 (2025): Jurnal Teknologi Infrastruktur Vol 7 No 02 tahun 2025
Publisher : Fakultas Teknik Universitas Panca Bhakti

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Abstract

The treatment of acid mine drainage at PT Bumi Bara Makmur Mandiri is conducted using an active treatment method. It was found that there is cloudy wastewater with a brownish and reddish-brown color in the settling pond. The objective of this study was to analyze the changes in pH, Fe and Mn concentrations in acid mine drainage samples using quicklime and to calculate the cost required for neutralizing the acid mine drainage. The neutralization process was carried out on a laboratory scale using an experimental method with 3 variations of quicklime doses: 0.2 g/l, 0.3 g/l, and 0.4 g/l. The results showed that quicklime is effective in reducing Fe and Mn value in acid mine drainage. The initial pH of the acid mine drainage was 6.05. The pH increased with the increase in the quicklime coagulant dose. The Fe concentration before the neutralization of acid mine drainage was 1.20 mg/l, which decreased to 0.15 mg/L for all given dose variations. The initial Mn concentration exceeded the environmental quality standard and showed a significant reduction at a dosage of 0.2 g/L, decreasing from 72.20 mg/L to 0.08 mg/L. Similar Mn concentrations were obtained at dosages of 0.3 g/L and 0.4 g/L, each resulting in 0.122 mg/L. The cost required to neutralize Fe and Mn was IDR 368,000 per day, or IDR 11,040,000 per month.
Co-Authors Ahmad Fadhly Anggia Arista Annisa Intan Yustisia Rahmalina Boby Rachman Christian Pranata Saragi Dego Retiandi Putra Deri Kurniadi Dian Hadiyansyah Dini Elishabet Elmawati Elmawati Hendriono Hisni Rahmi Hisni Rahmi Intan Yustisia Rahmalina Jevie C. Eka Putra Khalik Dwika Putra Lili Hindayani Mutiara Salvira Nelsy Mariza Syahyuda Nofrohu Retongga Restu Juniah Roby Mardiyan Safitra Rusnoviandi Sendriadi Adha Suci Fitria Rahmadhani Z Suci Handayani Sukma Puspita Dhevi Veny Wedyawati Vina Lestari Riyandini, Vina Lestari Yolno Vernando Yuda Fahrizal