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All Journal Jurnal Ilmiah Poli Rekayasa eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia Jurnal Rekayasa Sipil dan Lingkungan Civil Engineering Journal Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Media Ilmiah Teknik Lingkungan Prokons: Jurnal Teknik Sipil GANESHA: Jurnal Pengabdian Masyarakat Jurnal Pengabdian dan Pemberdayaan Banyuwangi Jurnal Pengabdian Kepada Masyarakat Jurnal Online Skripsi Manajemen Rekayasa Konstruksi (JOS-MRK)
Armin Naibaho
Jurusan Teknik Sipil Politeknik Negeri Malang
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology 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 Agus Sugiarto Agus Sugiarto Agustin Dita Lestari Agustin Dita Lestari, Agustin Dita Alfi Syahri, Ika Wahyu Alfian, Mohamad Dava Nizar Ananda, Mohamad Fiqy Dwi Anisah Nur Fajarwati Aulia Rahman Aulia Rahman Burhamtoro Burhamtoro Dandung Novianto Diana Ningrum, Diana Dwi Ratnaningsih, Dwi Fahrurrozi, Anggi Destia Fakhrudin, Hilman Fakhry, Muhammad Reza Feri, Fernandi Wahyu Pradana Finit, Nikita Angelia Galih Damar Pandulu Gerard Appono Gindang Rain Pratama Gregorius Aryoko Gautama Hapsari, Ratih Indri Hediyanti, Lutfiah Putri Jayaputra, Harsalim Aimunandar Kartika Purwitasari Lydianingtias, Diah Maulidina, Alya Moch. Khamim Muhammad Tri Aditya Mujahid, MJ. Bonang Al Nawir Rasidi Novansyah, Muchammad Zain Helmi Novendra, Haykal Aditya Nuriyah, Shinta Purnama Dewi Putra, Aziz Trisna Putra, Brian Nugroho Putri Widianti, Galuh Qomariah Qomariah Qomariah Qomariah Raharjo, Bobby Asukmajaya Raharjo, Nain Dhaniarti Rohmah, Fadila Nur Rustam Rustam Sitti Safiatus Riskijah Sugeng Riyanto Sumardi . Suryadi, Akhmad Suselo Utoyo, Suselo Takim Takim Udi Subagio Wahiddin, Wahiddin Yuliana, Iva Tri