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All Journal Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Surya Teknika NUSANTARA: Jurnal Pengabdian Kepada Masyarakat TEKSTUR : Jurnal Teknologi Infrastruktur Jurnal Meteorologi dan Geofisika Jurnal Keilmuan dan Aplikasi Teknologi Industri
Nelvi, Afni
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Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Physics Public Health Social Sciences Transportation

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Penurunan Kadar Fe Dan Mn Menggunakan Kapur Tohor (CaO) Pada Penetralan Air Asam Tambang Vernando, Yolno; Nelvi, Afni; Fadhly, Ahmad; Hadiyansyah, Dian; Rahmi, Hisni
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 Amsya, Riam Marlina Arista, Anggia Cressendo, Hedsing Cressendo, Hedsing Cressendo Elishabet, Dini Elmawati Elmawati Ervil, Riko Fadhly, Ahmad Fitria Rahmadhani Z, Suci Hadiyansyah , Dian Hadiyansyah, Dian Hindayani, Lili Hisni Rahmi Intan Yustisia Rahmalina, Annisa Juniah , Restu Mariza Syahyuda, Nelsy Mochammad Imron Awalludin Nata, Refky Adi Nofriadiman, Nofriadiman Nofrohu Retongga Nurman, Hari Putra, Dego Retiandi Rachman, Boby Rahmalina, Annisa Intan Yustisia Rahmi , Hisni Riam Marlina A Rusnoviandi Situmorang, Boyman Suci Fitria Rahmadhani Z Suci Handayani, Suci Vernando, Yolno Vina Lestari Riyandini, Vina Lestari Wedyawati, Veny Yolanda, Melfa