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All Journal Journal of Degraded and Mining Lands Management Journal of Geoscience, Engineering, Environment, and Technology Jurnal Pengabdian Masyarakat AbdiMas Jurnal Geosains dan Teknologi Jurnal GEOSAPTA Prosiding Temu Profesi Tahunan PERHAPI Journal of Community Development Ophiolite : Jurnal Geologi Terapan Mining Science and Technology Journal Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) OPHIOLITE : Jurnal Geologi Terapan Karya Nyata: Jurnal Pengabdian Kepada Masyarakat
Jaya, Rio Irhan Mais Cendra
Universitas Halu Oleo
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Mechanical Engineering Nursing Physics Public Health Social Sciences

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Assessing the environmental impact of Kolaka peridotites from nickel mining waste for geological carbon storage: Mineralogy, carbonation potential, and rock property changes Deniyatno, Deniyatno; Masri, Masri; Jaya, Rio Irhan Mais Cendra; Wahab, Wahab; Syahrul, Syahrul
Journal of Degraded and Mining Lands Management Vol. 12 No. 5 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.125.8899

Abstract

This study investigated the carbonation potential of peridotite from the Kolaka Ultramafic Complex in Sulawesi, Indonesia, for carbon capture and storage (CCS) applications. Peridotites, particularly those enriched in magnesium, are known for their high reactivity with CO?, forming stable mineral carbonates. However, the Kolaka region’s peridotites have not been thoroughly assessed for their carbonation prospects. This research addresses this gap by examining the petrology, geochemistry, and physical-magnetic properties of peridotite, focusing on its serpentinization and carbonation characteristics. An integrated approach applying petrographic analysis, X-ray fluorescence (XRF), X-ray diffraction (XRD), scanning electron microscopy (SEM), Schmidt hammer, and magnetic susceptibility tests, was used to determine the mineral composition, specifically the carbonation minerals, and the changes in the physical properties of the rocks during carbonation. The results showed that the peridotites, particularly serpentinized lherzolites, exhibit high carbonation potential characterized by the abundance of magnesium-rich olivine-pyroxene minerals. Carbonation reactions are characterized by the presence of magnesite and brucite, leading to significant changes in rock strength and magnetic susceptibility. Carbonation occurs by an advanced serpentinization process, which increased mineral reactivity and leads to reducing uniaxial compressive strength (UCS). Additionally, magnetic susceptibility exhibits positive correlation with serpentinization, accompanied by magnetite formation. These findings suggest that Kolaka's serpentinized peridotite, as mining waste, is a viable candidate for CO? storage. The ex-situ carbonation mechanism allows Kolaka's fine-grained peridotite to capture CO?, while also improving nickel ore recovery, minimizing dust, neutralizing acid mine drainage, and enhancing soil quality.
Edukasi Pertambangan Berwawasan Lingkungan pada Mahasiswa Teknik Geologi Universitas Sulawesi Tenggara Saleh, Isman; Arisona Arisona; Okto, Ali; Arifin, Asri; Bahdad Bahdad; Masri Masri; Jaya, Rio Irhan Mais Cendra; Firdaus, Amritzal Nur
Karya Nyata : Jurnal Pengabdian kepada Masyarakat Vol. 2 No. 3 (2025): September : Karya Nyata : Jurnal Pengabdian kepada Masyarakat
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/karyanyata.v2i3.2244

Abstract

This community service program aims to enhance the understanding of Geology Engineering students at Universitas Sulawesi Tenggara regarding environmentally sustainable mining practices. The education was delivered through lectures, interactive discussions, and local case studies relevant to mining activities in Southeast Sulawesi. These methods were chosen to encourage active participation and ensure the materials were contextually relevant to the students’ local environment and future professional field. The results indicate that students gained new insights into the implementation of good mining practice, post-mining reclamation, and mining and environmental regulations, which fostered greater awareness of the environmental and social impacts of mining. In addition, the program facilitated critical thinking and encouraged students to analyze real-world mining problems from a sustainability perspective. Consequently, this program not only improved students’ environmental literacy but also developed a sense of responsibility and commitment to supporting sustainable mining practices. It is expected that the knowledge gained will influence their future decisions as professionals in the mining sector, promoting a more sustainable and responsible industry.
EDUKASI PERTAMBANGAN BERWAWASAN LINGKUNGAN PADA MAHASISWA TEKNIK GEOLOGI UNIVERSITAS SULAWESI TENGGARA Saleh, Isman; Okto, Ali; Arifin, Asri; Bahdad, Bahdad; Jaya, Rio Irhan Mais Cendra; Firdaus, Amritzal Nur
Jurnal Pengabdian Masyarakat AbdiMas Vol 12, No 1 (2025): Jurnal Pengabdian Masyarakat Abdimas
Publisher : Universitas Esa Unggul

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47007/abd.v12i1.10174

Abstract

Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan pemahaman mahasiswa Teknik Geologi Universitas Sulawesi Tenggara mengenai pertambangan berwawasan lingkungan. Edukasi diberikan melalui penyuluhan, diskusi interaktif, dan studi kasus lokal yang relevan dengan kondisi pertambangan di Sulawesi Tenggara. Hasil kegiatan menunjukkan bahwa mahasiswa memperoleh wawasan baru terkait penerapan good mining practice, reklamasi pascatambang, serta regulasi pertambangan dan lingkungan, sehingga kesadaran kritis mereka terhadap dampak lingkungan dan sosial dari pertambangan semakin meningkat. Dengan demikian, kegiatan ini tidak hanya menambah literasi lingkungan mahasiswa, tetapi juga membentuk sikap peduli dan tanggung jawab dalam mendukung praktik pertambangan yang berkelanjutan.
Influence of Laterite Bedrock on Ni Content in Langgikima District, North Konawe Regency, Southeast Sulawesi, Indonesia Hasria; Okto, Ali; Rio Irhan Mais Cendra Jaya; Alamyah, Wa Ode Nur; Safar, Muhamad; Septiana, Sara; Syahrul
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 4 (2025): JGEET Vol 10 No 04 : December (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.4.24735

Abstract

This study investigates the influence of bedrock on nickel (Ni) content in laterite deposits in the Lameruru Region, Langgikima District, North Konawe Regency, Southeast Sulawesi Province, Indonesia. The research area is dominated by ultramafic rocks, which are potential sources of laterite nickel. The study employs literature review, field surveys for lithological data collection and representative sampling, petrographic analysis to determine mineral composition and rock types, and geochemical analysis using X-Ray Fluorescence (XRF) to determine nickel content in the rocks. The results show that the bedrock in the study area consists of harzburgite and olivine pyroxenite. Harzburgite, occupying approximately 72.72% of the area, is composed of 54-78% olivine, 15-45% orthopyroxene, 6% clinopyroxene, and accessory minerals, while olivine pyroxenite, occupying about 27.28% of the area, is composed of 27% olivine, 49% orthopyroxene, 17% serpentine, and 7% spinel. Geochemical analysis reveals that harzburgite has higher Ni content (0.10-0.16%) compared to olivine pyroxenite (0.03-0.10%). The distribution of Ni in the bedrock and saprolite is directly proportional, with higher Ni content in harzburgite in both zones. The study concludes that the type of bedrock greatly influences the nickel content in laterite deposits, with harzburgite having a higher Ni content due to its higher percentage of olivine minerals, which are the main hosts of nickel in ultramafic rocks.
Co-Authors Al Firman, Al Firman Alamyah, Wa Ode Nur Ali Okto Amritzal Nur Firdaus Anshari, Erwin Arisona Arisona Arisona Arisona Asri Arifin Atodding, Wa Ode Sitti Jumrana Bahdad Bahdad Bahdad, Bahdad Deniyatno, Deniyatno Harisma Buburanda, Harisma Hasria Hasria Hasria Hasria Hasria, Hasria Ihksan Juarsan, Laode Isman Saleh Juarsan, Laode Ihksan Kumalasari, Rizki La Ode Dzakir La Ode Ngkoimani Masri Masri Masri Masri Muhamad Safar Muliddin NENI Nopri Asharun Nur Syamsiah, Nur Okto, Ali Pramadana, Reza Putri, Ulfhi Aliyandha Ramadani, Suci Razak Haraty, Syamsul Resmin, Masrandi Risal Sepdiansar Riska Rubaiyn, Al Sabaria, Sabaria Sahiddin, La Ode Salihin, La Ode M. Iradat Sara Septiana Sawaludin, Sawaludin Septiana, Sara Suryawan Asfar Suwardi, Wa Ode Syahrul Syahrul Syahrul Wahab Wahab