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Muhammad Tri Aditya
Politeknik Negeri Malang
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Public Health Social Sciences Transportation Other

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Geochemical Characteristics of Rocks in Coal Mines (Case Study of Coal Mining PT. ABC): Karakteristik Geokimia Batuan Pada Tambang Batubara (Studi Kasus Penambangan Batubara PT. ABC) Gindang Rain Pratama; Diana Irmawati Pradani; Harsalim Aimunandar Jayaputra; Gregorius Aryoko Gautama; Muhammad Tri Aditya; Armin Naibaho
Media Ilmiah Teknik Lingkungan (MITL) Vol. 10 No. 2 (2025): Media Ilmiah Teknik Lingkungan (MITL)
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mitl.v10i2.10460

Abstract

At the end of mining, an open pit coal mine will form a mine sump, also known as a “pit lake”. At PT ABC, the pit wall rock lithology consists of 30% potentially acidic rock and 70% non-acidic rock, with low pH sump water quality. The static test is intended to calculate the balance of acid-forming and acid-consuming components. The static test does not consider the rate of acid formation and neutralization. The objective is to determine the potential for acid formation to occur in the rock. The kinetic test aims to understand the kinetics of acid formation reactions in samples through a simulation of oxidation reactions in rocks. This test can predict long-term weathering characteristics as a function of time. Of the 4 rock samples tested statically, all samples showed PAF (Potencial Acid Forming) screening criteria. The results of the kinetic test showed that sample S1 experienced an increase in pH to 4,43, sample S2 experienced a decrease in pH to 8,03, sample S3 experienced an increase in pH to 2,44, and sample S4 experienced an increase to 7,24.
Co-Authors 2087-2090, Fuji Asema Achendri M. Kurniawan Achendri M. Kurniawan Achendri M.Kurniawan Agus Suhardono Akhmad Suryadi Armin Naibaho Bani, Martince N Cahyadi, Tedy Agung Cahyani, Eri Cupasindi, Dyah Ayu Rahmawati Cupasindy, Dyah A.R Dandung Novianto Deni Putra Arystianto Deni Putra Arystianto Dyah Ayu Rahmawati Cupasindi Dyah Ayu Rahmawati Cupasindy Edy Nursanto Fanani, Yazid G. A. Gautama Gautama, Gregorius Aryoko Gindang Rain Pratama Gregorius Aryoko Gautama Gunawan, Fajar Bagus Harsalim A. Jayaputra Helik Susilo ikrar hanggara Ikrar Hanggara, Ikrar Jayaputra, Harsalim Aimunandar Marjono Marjono Martince Novianti Bani Moch. Sholeh, Moch. Novita Anggraini Novita Anggraini Pratama , Gindang Rain Pungarto, Irwanda Yuni R., Bobby Asukmajaya Rahardion, Aqil Rahardjo, Bobby Asukmajaya Rahmawati Cupasindy, Dyah Ayu Rika Ernawati Suhariyanto Suhariyanto Syamsul Arifin Waterman Sulistyana Bargawa Waterman Sulistyana Bargawa Waterman Sulistyana Bargawa, Waterman Sulistyana Wibowo, Eko Kurniawan Zulmy Faqihuddin Putera