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All Journal Journal of Tropical Soils JTSL (Jurnal Tanah dan Sumberdaya Lahan) AJIE (Asian Journal of Innovation and Entrepreneurship) UNEJ e-Proceeding Jurnal Rekayasa Sipil dan Lingkungan FKIP e-PROCEEDING Jurnal Teknologi Mineral dan Batubara Journal of Geoscience, Engineering, Environment, and Technology BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Journal of Energy, Mechanical, Material and Manufacturing Engineering Jurnal Tekno Insentif APPROACH: Jurnal Teknologi Penerbangan Prosiding SNITP (Seminar Nasional Inovasi Teknologi Penerbangan) Indonesian Journal of Electrical Engineering and Computer Science Jurnal Geosains dan Remote Sensing (JGRS) Journal of Earth and Marine Technology (JEMT) Jurnal Teknologi Mineral dan Batubara Jurnal Teknologi Sumberdaya Mineral
Januar Fery Irawan
Progam Studi Teknik Pertambangan, Fakultas Teknik, Universitas Jember
Aerospace Engineering Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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POTENTIAL FORMATION OF ACID MINE DRAINAGE BASED ON THE GEOCHEMISTRY OF GOLD ORE ROCKS Aminah, Siti; Haeruddin, Haeruddin; Suparno, Fanteri Aji Dharma; Irawan, Januar Fery
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol. 12 No. 1 (2025): Biolink August
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v12i1.14182

Abstract

Open pit mining activities can have many impacts on the environment, such as the formation of mine pits containing acid mine drainage. This requires proper and correct handling so as not to harm the environment. The acidity of mine drainage can vary greatly depending on the quantity and type of minerals it contains. The objectives of this research are: to identify and determine the rock materials that have the potential to generate acid mine drainage (AMD) as Potentially Acid Forming (PAF) rocks and Non-Acid Forming (NAF) rocks. The research began with sample preparation, mineralogical analysis, AAS, static testing, and XRF testing. The research results indicate that the samples are primarily composed of quartz, with some hematite and goethite grains observed as fine, curved pore fillings. Gold (Au) is found within the mineral electrum (AuAg). The minerals present in the gold ore rocks are predominantly oxides, consisting of 84.7% SiO2, 8.23% Fe2O3, and other components. The rock samples are classified as NAF, as indicated by the paste pH analysis results of 7.05 and 6.94, total sulfur analysis values of 0.37% and 6.43%, and NAPP values of -5.1 and -3.5.
Kajian Investigasi Potensi dan Eksplorasi Morfologi Gumuk di Kabupaten Jember Menggunakan Penginderaan Jauh: Indonesia Irawan, Januar Fery; Haeruddin; Aminah, Siti; Aji DS, Fanteri; Ulum, Miftakhul
Asian Journal of Innovation and Entrepreneurship Volume 08, Issue 02, May 2024
Publisher : UII

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ajie.vol8.iss2.art2

Abstract

Hummock is a typical morphology that is not found anywhere except in the active mountains. This uniqueness is due to the isolated hill shape with plain morphology formed in the geological setting. The existence of Gumuks dissiminated in Jember has been mined, causing their numbers to decrease drastically. Hummock in Jember district has a unique hill-shaped landscape with a height of over 2 meters. Hummocks in Jember are arranged from Raung Mount to the southwest to Jember Regency. There are several types (three) types of dunes that differ from the type of rock contained, namely rock dunes, coral dunes and sand dunes. At this moment, the existence of Hummock has been partially used for building material needs. The problem faced now is that the potential for piles other than as a building material requirement has not yet been researched. Therefore, effective management is needed through the identification of potential dunes through green mining research so that environmental problems are minimized when dune exploration is carried out. The purpose of this study was to find a green mining-based dune exploration technology, so that the treatment of each dune can be carried out appropriately. The stages of the research were carried out by observing the images. After the observations are made, field data is needed to validate and verify the pattern of dune. The research used remote sensing with guided techniques based on data in the field and geological maps. Based on remote sensing results it was found that there were 4 Classes in Land Use Change after Mining Operation carried out by people around the mine site.
Disposal Transition and Drainage Design at Pit 2AA SLS Site: A Case Study at PT Sentosa Laju Sejahtera, Loa Janan Suparno, Fanteri Aji Dharma; Ariadi, Arda Bara; Irawan, Januar Fery; Aminah, Siti; Haeruddin; Rini, Utari Retno Sulistyo; Mulyani, Kurnia Dewi; Manek, Emanuel Grace
Journal of Geoscience, Engineering, Environment, and Technology Vol. 11 No. 02 (2026): Article In Press-JGEET Vol 11 No 02 : June (2026)
Publisher : UIR PRESS

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Abstract

This research discusses the design of the disposal area transition and drainage system in Pit 2AA of PT Sentosa Laju Sejahtera to overcome the limited space of the stockpile due to the use of the backfilling method. The main issues include effective drainage design, selection of alternative disposal sites, and embankment slope stability analysis. The planned rainfall was calculated using the Gumbel distribution with rainfall data for the last 10 years (2014-2023), while the runoff water discharge was calculated using the Rational method, resulting in a discharge of 7.8 m³/second. The open channel was designed with two trenches, Trenches A and B, with capacities of 9.59 m³/sec and 7.92 m³/sec, respectively. The disposal design was placed outside the Life of Mine boundary, using the gradual finger disposal method with three levels from elevation 93 to 105 meters. The slope geometry consists of a tier height of 4 meters, a tier width of 15 meters, a single slope angle of 30°, and an overall slope of 13°. The total disposal capacity reached 441,310 BCM. Slope stability analysis was conducted using the Janbu Simplified method, showing that the factor of safety (FK) value is in the range of 1.308-2.404, meeting the minimum FK ≥ 1.3 according to the Decree of the Minister of Energy and Mineral Resources No. 1827 K/30/MEM/2018. The results show that the drainage and disposal designs are technically feasible and support the sustainability of mine operations.
Co-Authors . Indarto . Indarto Ade Reza Saputra Alfredo Bayu Satriya Anik Ratnaningsih Ariadi, Arda Bara Citra Citra Citra Citra Emanuel G. Manek Fachruzaki, Fachruzaki Fanteri Aji Dharma Suparno Gozali Gozali Gozali Gozali Haeruddin Haeruddin Haeruddin Hendro Wicaksono Ike Fibriani Indra Permanajati, Indra Intan Kamila Adiba Januar Aziz Zaenurrohman Khoiril Khoiril Khusmiawati, Yunita Kurnia Dewi Mulyani Luthfi Amri Wicaksono Midiawati, Erni Miftakhul Ulum, Miftakhul Nur Faizin Rizqi Renafasih Alinra Sachrul Iswahyudi Santoso, Raffaello Sapna Rizqi Febriany Satrio Budi Utomo Satryo B. Utomo Satryo Budi Utomo Satryo Satryo Satryo Satryo Siti Aminah Siti Aminah Sultan Affith Faizal Sumardi Sumardi Utari Retno Sulistyo Rini Widjonarko Widyono Hadi Wisnu Sadewa Febryawan