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All Journal Bumi Lestari Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Ilmu Lingkungan Jurnal Teknologi Sinergi The Journal of Pure and Applied Chemistry Research IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Sriwijaya International Seminar on Energy-Environmental Science and Technology JPSriwijaya IJEMS (Indonesian Journal of Environmental Management and Sustainability) Jurnal Teknik Kimia Jurnal Engine: Energi, Manufaktur, dan Material Jurnal ABDINUS : Jurnal Pengabdian Nusantara Journal of Applied Materials and Technology JURNAL TEKNIK PATRA AKADEMIKA Journal Of Chemical Process Engineering JURNAL REKAYASA KIMIA & LINGKUNGAN
Tuty Emilia Agustina
Jurusan Teknik Kimia, Fakultas Teknik, Universitas Sriwijaya, Jl. Raya Palembang – Prabumulih Km. 32 Indralaya, Ogan Ilir 30662, Sumatera Selatan
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Journal : Journal of Applied Materials and Technology

 1 
Fly ash adsorbent for ph improvement and manganese reduction in acid mine drainage Nurlela; Agustina, Tuty Emilia; Arita, Susila; Bahrin, David; Gayatri, Rianyza
Journal of Applied Materials and Technology Vol. 7 No. 1 (2025): September 2025
Publisher : Faculty of Engineering Universitas Riau and Applied Materials and Technology Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/Jamt.7.1.41-48

Abstract

Metal solid waste from coal combustion (fly ash) is abundant in Indonesia, as an effective and economical adsorbent in neutralizing acid mine drainage (AMD). Given that the continuous utilization of coal produces environmental challenges in the form of AMD containing acid residues and heavy metals such as manganese (Mn), an appropriate treatment solution is required. The adsorption method was chosen due to its simplicity, cost effectiveness, and ability to remove heavy metal pollutants. The purpose of this research is to characterize fly ash before and after heating by SEM and XRD analysis, and evaluate the effect of fly ash physical activation temperature by heating at 100oC and 200oC for an interval of 60 minutes on the characteristics and adsorption ability of fly ash. In addition, this study also evaluated the effectiveness of the adsorbent mass (fly ash before heating and after heating) in increasing pH and reducing Mn concentration in AMD so that it meets the quality standards of Class 1 river water. The results obtained from this study show a fundamental difference in the properties of fly ash before and after heating. Based on BET analysis, the physical activation process resulted in pore enlargement (0.196 nm) and increased surface area of the adsorbent (0.847 m2/g), which significantly affected its binding capacity to solutes (adsorption capacity). The application of fly ash as an adsorbent showed the ability to increase the pH value of acid mine drainage towards neutral conditions. The process of reducing heavy metal ions Mn by using 50 g of fly ash heating at 100oC and 200oC, resulted in a removal percentage of 94.74% and 98.44%. It is hoped that this research can provide innovative and sustainable AMD treatment and increase the use value of fly ash waste.
Co-Authors Aditya M Rif'at ANWAR, WIWIN ARMOLDO OKTAVIANI Aprianti, Tine Aprianti, Tine Asyeni Miftahul Jannah Budi Sulistyono Budi Sulistyono Chris Luigi Chris Luigi Cundari, Lia David Bahrin Dewi Amalia Dewi Ermaya Diana Purbasari Dinata, Noer Fadzri Perdana Eky Novianarenti Endi Adriansyah Enggal Nurisman Estiarny, Resfy Ella Eva Okatarinasari Fadhlurrahman, M Arif Fatimura, Muhrinsyah Fitri Hadiah Fitri Suryani Arsyad Fitria, Syarifa Fitrializa, Ulfa Fitriyanti, Reno Gayatri, Rianyza gayatri, Ryaniza Gusti Diansyah Hariestya Viareco Hermansyah Hermansyah I Nyoman Sujana Ian Kurniawan Imah Luluk Kusminah Imam Gunawan Putra Imaniah Sriwijayasih Indah Agus Setiorini Jantan Manalaoon Leily Nurul Komariah M. Taufik Toha Marhadi Marhadi Melwita, Elda Michihiko Ike Mikrajuddin Abdullah Muhammad Abu Bakar Sidik Muhammad Faizal Muhammad Faizal Muhammad Faizal Muhammad Fikri Muhammad Hafiz Ridho Mutiara Rizki Prayesi Nono Darsono Nono Darsono Novandra Eko Aristian Novandra Eko Aristian Novi Anggraini Novia Novia Nufus, Dian Natasya Alfa Nurdiana Febriyanti Nurlela Peppy Herawati Prayesi, Mutiara Rizki Pritania, Alya Dewi Putra, Imam Gunawan Rahma Nuryanti Ramadhini, Tri Karimah Rendotian Anugerah Rendotian Anugrah Restu Juniah Rif'at, Aditya M Rifqi Sufra Rikky Leonard Rully Masriatini Salsabilla A Yani Satoshi Soda Subriyer Nasir Subriyer Nasir Susila Arita Syarifuddin Syarifuddin Tarikh Azis Ramadani Teguh, Dedi Teguh, Dedi Tizana Lorenza Tizana Lorenza Tuti Indah Sari Tuti Indah Sari, Tuti Indah Ulfa Fitrializa Wijayanti, Maria Siswi Yogi Pratama Yogi Pratama