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All Journal Jurnal Sains dan Teknologi Journal of Innovative and Creativity
Muhammad Fahrullah
Institut Teknologi dan Bisnis Nobel Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Dentistry Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Veterinary Other

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Studi Endapan Nikel Laterit Berdasarkan Hasil Core PT. Ceria Nugraha Indotama Kabupaten Kolaka Sulawesi Tenggara Muhammad Fahrullah; Muhammad Syahrizal
Journal of Innovative and Creativity Vol. 5 No. 2 (2025)
Publisher : Fakultas Ilmu Pendidikan Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joecy.v5i2.984

Abstract

Penelitian ini bertujuan untuk mengetahui karakteristik zonasi endapan nikel laterit serta kadar kandungan nikel (Ni) pada masing-masing zona laterit (overburden, limonit, saprolit, dan bedrock) di wilayah kerja PT Ceria Nugraha Indotama, Kabupaten Kolaka, Sulawesi Tenggara. Fokus utama adalah mengidentifikasi zona saprolit yang mengalami pengayaan kadar Ni, sebagai dasar pertimbangan eksplorasi lanjutan. Metode Penelitian : Penelitian dilakukan melalui analisis data hasil pengeboran (core logging) dan uji laboratorium dengan metode X-Ray Fluorescence (XRF). Data primer diperoleh dari observasi langsung dan pengambilan sampel di lapangan pada tiga titik bor (Block A, B, dan C). Setiap zona diidentifikasi secara megaskopis dan dikorelasikan dengan data kadar Ni hasil analisis XRF. Data sekunder berupa peta geologi dan data regional mendukung interpretasi hasil. Hasil : Hasil menunjukkan adanya perbedaan kadar Ni pada masing-masing blok dan zona. Block B memiliki kadar tertinggi di zona saprolit dengan 1,90% Ni, diikuti Block C (1,83% Ni), dan Block A (1,34% Ni). Zona overburden dan bedrock umumnya memiliki kadar yang lebih rendah (<1%). Penampang C’-C menunjukkan prospek tertinggi untuk penambangan, dengan distribusi ore berkadar tinggi lebih dominan dibanding penampang lainnya. Kesimpulan : Kadar Ni yang paling tinggi secara konsisten ditemukan pada zona saprolit di ketiga blok penelitian. Zona saprolit pada Block B merupakan zona paling prospektif untuk dilakukan kegiatan penambangan berdasarkan kedalaman dan kadar nikel yang tinggi. Penelitian ini memberikan kontribusi penting dalam penentuan lokasi potensial eksplorasi lanjutan nikel laterit.
Implementasi Konsep Green Mining PT. Semen Tonasa: Dampak Lingkungan, Reklamasi, dan Kesejahteraan Petani Muhammad Fahrullah; Mukhtar Hamzah; Rasdi Rasdi
INSOLOGI: Jurnal Sains dan Teknologi Vol. 4 No. 5 (2025): Oktober 2025
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v4i5.6532

Abstract

This study analyzes the implementation of the Green Mining concept by PT Semen Tonasa and its relationship with environmental sustainability, agricultural productivity, and the welfare of farmers around the mining area. The approach used is descriptive qualitative supported by simple quantitative analysis (Spearman correlation) to assess the relationship between Green Mining metrics (ISO 50001, TSR biomass, land reclamation, and CSR) and community socio-economic indicators. Data were obtained through farmer surveys, interviews with the company and local government, and a review of CSR and energy efficiency documents. The results show that land reclamation exceeded the target of 17.16 ha from 15.85 ha (91.67% success), the implementation of ISO 50001 increased energy efficiency by 18.52%, saved 1,214,159 MWh, and reduced emissions by 435,864 tons of CO₂-e. Biomass substitution increased by 1.17% to 8.13%, followed by a 22.6% increase in rice productivity and a 20% increase in farmer income (Rp 2.5–3.0 million/month). These results confirm Green Mining's significant contribution to energy and economic sustainability, but the unequal distribution of benefits requires tripartite collaboration and the application of the Just Transition principle within the Triple Bottom Line framework.
Co-Authors Muhammad Syahrizal Mukhtar Hamzah Rasdi Rasdi