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All Journal PROMINE Jurnal Chemurgy Jurnal Cahaya Mandalika JOURNAL SCIENTIFIC OF MANDALIKA (JSM) Jurnal Sosial dan Teknologi Journal Transformation of Mandalika Journal of Comprehensive Science MINERAL Jurnal Sosial dan Sains Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII Jurnal Penelitian Rumpun Ilmu Teknik Jurnal Sains dan Teknologi Jurnal Teknik Pertambangan (JTP) Jurnal Inovasi Global Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan JURNAL TEKNOLOGI MINERAL FT UNMUL Konstruksi: Publikasi Ilmu Teknik, Perencanaan Tata Ruang dan Teknik Sipil Manufaktur: Publikasi Sub Rumpun Ilmu Keteknikan Industri Venus: Jurnal Publikasi Rumpun Ilmu Teknik Journal of Media, Sciences and Education
Henny Magdalena
Universitas Mulawarman
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Transportation Other

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Kebutuhan Alat Teknis Reklamasi PIT 3 Selatan PT. Wijaya Mandiri Energi di Kabupaten Paser, Kalimantan Timur Galih Handhika; Henny Magdalena; Lucia Litha Respati
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Vol. 2 No. 3 (2024): Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/globe.v2i3.402

Abstract

Reclamation is an activity carried out throughout the stages of the mining business to organize, restore, and improve the quality of the environment and ecosystem so that it can function again according to its designation (Law No. 3 of 2020). In PT Wijaya Mandiri Energi's mining activities that have been completed, the required activity is to carry out reclamation. In planning reclamation activities, technical reclamation tools are needed. Therefore, in this study, calculations were carried out to determine the number of technical equipment requirements used in reclamation activities that will be carried out in pit 3 south. Based on observations of mining activities carried out in pit 3 south, data is obtained in the form of productivity values of digging-loading equipment, transport equipment and displacement equipment. In this research, the quantitative analysis method is used by calculating the value of the area, productivity and actual working hours so as to obtain the value of the need for digging tools, transport tools and displacement tools needed in reclamation activities to achieve optimal value. As for the research conducted with an area of 5.95Ha and a production target of 208,250 m3, with the productivity of Doosan 500LCV excavator equipment of 218.64 m3 / hour, dump truck of 58.84 m3 / hour and SEM 822D bulldozer of 351.64 m3 / hour, the number of excavator Doosan 500LCV digging and loading equipment is 2 units, Beiben 2642 dump truck of 8 units and SEM 822D bulldozer of 2 units.
Optimalisasi Penggunaan Fly Ash Untuk Reduksi Kadar Besi (Fe) Dan Mangan (Mn) Serta Peningkatan pH Dalam Air Asam Tambang Rofi Taufiqurrahman; Shalaho Dina Devy; Windhu Nugroho; Agus Winarno; Henny Magdalena
Manufaktur: Publikasi Sub Rumpun Ilmu Keteknikan Industri Vol. 2 No. 3 (2024): September : Manufaktur : Publikasi Sub Rumpun Ilmu Keteknikan Industri
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/manufaktur.v2i3.470

Abstract

Coal mining activities often result in acid mine drainage (AMD), which can cause environmental pollution if not properly managed. This study aims to evaluate the potential use of fly ash from the Stream Power Plant (PLTU) Tenggarong to mitigate the impacts of AMD, specifically targeting iron (Fe), manganese (Mn), and pH parameters. Acid Mine drainage is formed when sulfide minerals oxidize, producing acidic compounds that can harm the environment. This research focuses on analyzing the ability of fly ash to adsorb iron and manganese from AMD solutions, as well its capability to increase solution pH. Based on the conducted research, the optimum pH value was achieved when using 10 grams and 15 grams of fly ash in the adsorption process. The optimum concentration of iron (Fe) was attained using 10 grams to 15 grams of fly ash, while for manganese (Mn), it was achieved with 20 grams to 25 grams of fly ash. The adsorption process using 25 grams of fly ash showed the highest efficiency in reducing iron (Fe) concentration by 93.78 % and manganese (Mn) concentration by 75.47 %.
Deashing Batubara Dengan Metode Leaching Menggunakan NaOH Dan HCL Di PT Bukit Baiduri Energi, Kabupaten Kutai Kartanegara, Kalimantan Timur Saskiyah Saskiyah; Harjuni Hasan; Henny Magdalena
Venus: Jurnal Publikasi Rumpun Ilmu Teknik  Vol. 2 No. 4 (2024): Agustus : Jurnal Publikasi Rumpun Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/venus.v2i4.412

Abstract

Coal is one of the energy sources that is the basis for meeting energy and electricity needs in various countries, including Indonesia. Coal obtained from mining contains impurities, which can occur during coalification or during the mining process. There are impurities elements found in coal such as sulfur, ash and various other minerals found in coal. The sampling location was carried out at the mining location at PT Bukit Baiduri Energi, Kutai Kartanegara Regency, East Kalimantan Province. The solutions used in the deashing process using the leaching method are NaOH and HCl.
RENCANA PENAMBANGAN BATUBARA TRIWULAN PADA CV. KUTAI KUMALA ENERGY KECAMATAN LOA KULU, KABUPATEN KUTAI KARTANEGARA, PROVINSI KALIMANTAN TIMUR : QUARTERLY COAL MINING PLAN AT CV. KUTAI KUMALA ENERGY LOA KULU DISTRICT, KUTAI KARTANEGARA REGENCY, EAST KALIMAN Zwageri, Rizky; Devy, Shalaho Dina; Nugroho, Windhu; Winarno, Agus; Magdalena, Henny
Journal Transformation of Mandalika, e-ISSN: 2745-5882, p-ISSN: 2962-2956 Vol. 3 No. 5 (2022): Mei
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/jtm.v3i5.1182

Abstract

Mining design is part of the planning stages of mining as a very important factor is determined before the actual mining plan begins. CV. Kutai Kumala Energy is a company engaged in coal mining which has a Mining Business License located in Loa Kulu District, Kutai Kartanegara Regency, East Kalimantan Province. On CV. Kutai Kumala Energy pit BC was calculated with the aim of meeting the overburden of 5,095,565.38 BCM and the coal stripping target of 673,541.31 MT. In determining production targets for 1 year and in accordance with the capabilities of the tools at the research location.
STUDI ADSORBSI LOGAM BESI (Fe) DAN MANGAN (Mn) PADA AIR ASAM TAMBANG OLEH KOMPOSIT: CLAYSTONE – ZEOLIT - KARBON AKTIF TERAKTIVASI ADSORPTION STUDY OF LOGAM BESI (Fe) AND MANGANESE (Mn) ON ACID MINE WATER BY CLAYSTONE COMPOSITE - ZEOLITE - ACTIVATED CARBO Ginting, Emdananta; Devy, Shalaho Dina; Henny Magdalena; Oktaviani, Revia; Respati, Lucia Litha
Journal Transformation of Mandalika, e-ISSN: 2745-5882, p-ISSN: 2962-2956 Vol. 3 No. 5 (2022): Mei
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/jtm.v3i5.1184

Abstract

Composites are a combination of two or more different materials and their properties to form new materials that have better characteristics. The composite was previously composed of activated claystone, activated zeolite, and coconut shell activated charcoal with 3 ratios, namely: (claystone [C] : zeolite [Z] : activated charcoal [A] = 60:20:20; 20:20:60; and 20:60:20. This composite acts as an adsorbent in the adsorption process of acid mine water samples. Based on the results of the adsorption test, it was concluded that the composite cannot neutralize the pH of acid mine water. Of the three types of composites, Composite A (claystone [C] : zeolite [Z] : activated charcoal [A] = 60:20:20) showed a significant influence with a decrease in the concentration of heavy metals Iron and Manganese within 30 min of contact time. Fe adsorption capacity is 20,7 mg/g and Mn is 24,3 mg/g.
Evaluasi Unjuk Kerja Alat Gali-Muat pada Kegiatan Penambangan Batubara di PT. Insani Bara Perkasa Site Kam 11 Loajanan Kalimantan Timur Ruslan Patur; Harjuni Hasan; Henny Magdalena; Shalaho Dina Devi; Ardhan Ismail; Tommy Trides
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Vol. 3 No. 3 (2025): Agustus : Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/globe.v3i3.950

Abstract

This study aims to evaluate the performance of the loading and unloading equipment in coal mining activities at the Mahakam Pit, PT Insani Bara Perkasa Site Km 11, East Kalimantan. The research was motivated by the importance of achieving mechanical equipment performance standards according to the Decree of the Minister of Energy and Mineral Resources No. 1827 of 2018. Data were obtained through direct observation and analysis of actual working time and evaluation of operational constraint factors. The results of the analysis showed that before the evaluation, the mechanical availability (MA) value was 87.24%, physical availability (PA) 88.51%, availability utilization (UA) 88.73%, and effective utilization (EU) 78.54%. After evaluating the constraint time, there was an increase in all parameters: MA to 88.71%, PA to 89%, UA increased to 90%, and EU reached 80%. This evaluation also had an impact on increasing the productivity of the loading and unloading equipment from 268.41 bcm/hour to 284.43 bcm/hour. Thus, the evaluation of work obstacles is proven to be effective in increasing the efficiency and productivity of the digging-loading equipment at the research location.
Perhitungan Biaya Pengupasan dan Pengangkutan Overburden pada PIT 3000 Blok 12 PT Trubaindo Coal Mining Liganic Saprudin; Agus Winarno; Henny Magdalena; Windhu Nugroho
Manufaktur: Publikasi Sub Rumpun Ilmu Keteknikan Industri Vol. 3 No. 2 (2025): Manufaktur : Publikasi Sub Rumpun Ilmu Keteknikan Industri
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/manufaktur.v3i2.874

Abstract

In stripping overburden activities, calculate the costs in order to provide an overview of the costs that will be incurred by the company. The purpose is to provide an overview of the costs that will be incurred by the company. The results of the research that has been done are as follows with a target of overburden stripping target of 480,000 BCM, Productivity of Komatsu PC digging equipment 300 fleet 1 217.35 BCM/hour, Komatsu PC 300 fleet 2 digging tool productivity 226.22 BCM/hour and Komatsu PC 400 fleet 3 285.87 BCM/hour. Cost The cost of digging equipment ownership is Rp. 172,347/hour and the operational cost of digging equipment is Rp. 3,415,959/hour. The cost of ownership of the conveyance is Rp. 404,437/hour and the operational cost of the conveyance is Rp. 3,415,959/hour. operational costs Rp. 3,502,939 / hour. The company certainly incurs production costs. One of which is operational costs, therefore it is necessary to
Analisis Coal Recovery dan Coal Losses pada Rangkaian Penambangan PIT X PT. Jembayan Muarabara Kutai Kartanegara, Kalimantan Timur Evita Endar Apriliana; Windhu Nugroho; Henny Magdalena; Shalaho Dyna Devy; Agus Winarno
Venus: Jurnal Publikasi Rumpun Ilmu Teknik  Vol. 3 No. 3 (2025): Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/venus.v3i3.881

Abstract

In mining activities, there is often a discrepancy between the plan and the actual conditions in the field, this discrepancy was found after reconciliation at the end of the progress (month). From the mining activities carried out by PT. Jembayan Muarabara (JMB), coal roof floor data was obtained from the survey which was then used to find survey tonnage, model tonnage data and actual tonnage scales. Then from this data it can be used to obtain coal recovery, coal looses in coal cleaning, loading, and coal transportation. The results of the study obtained tonnage data from the survey of 26,201.50 tons, a model of 26,488.50 tons and an actual tonnage of 24,885.09 tons. From the data obtained, the coal recovery value at the research location was 94.98% with coal losses in coal cleaning activities of 4.52% or 1196.39 tons and in loading activities of 0.5% or 120.02 tons with a tonnage discrepancy between planning and actual in the field of 1603.41 tons.
Evaluasi Kegiatan Rehandling Batubara dan Kesesuaian Rencana Crushing pada ROM Port Area 2 PT Multi Harapan Utama Nirwana Putri; Windhu Nugroho; Tommy Trides; Henny Magdalena; Harjuni Hasan
Venus: Jurnal Publikasi Rumpun Ilmu Teknik  Vol. 3 No. 3 (2025): Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/venus.v3i3.928

Abstract

In rehandling activities In coal processing activities, mechanical tools such as crushers are needed to obtain production results in accordance with the company's desired targets according to the crusher target, therefore in processing it is necessary to carry out precise calculations, so that the ability of the tool (crusher) and know what things greatly affect the production processing process, so that it can be used optimally and has a high efficiency value for optimal production. Therefore, it is necessary to evaluate the results of the crusher production and the productivity of the support unit during rehandling activities in achieving the production target at ROM Port Area 2 in order to adjust the ability of the tool and other influencing factors with the crusher production target desired by the company. Actual rehandling productivity meets the crusher production plan target of 1100tph. Productivity in each zone with DT wheel 10, namely zone H there are 2 of 120,620 tph and 154,935 tph, zone L of 135,351 tph, zone M of 138,313 tph, zone I of 189,709 tph. And constraints on the crusher during a month that also affect obstacles in rehandling include schedule time with a total time of 176.72 hours, breakdown time with a total time of 4.84 hours, unscheduled time with a total time of 154.62 hours.
Perbandingan Perhitungan Volume Stockpile Batu Andesit Menggunakan Alat Survey Terrestrial Laser Scanner dan Global Positioning Sistem Real Time Kinematik pada PT. Bara Tabang Gideon Samari Suno; Henny Magdalena; Windhu Nugroho; Agus Winarno; Tommy Trides
Venus: Jurnal Publikasi Rumpun Ilmu Teknik  Vol. 3 No. 3 (2025): Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/venus.v3i3.932

Abstract

Stockpiles are accumulations of materials such as coal or ore stored at specific locations. Accurate stockpile volume measurement is crucial in the mining and logistics industries for inventory management and cost efficiency. Conventional methods like Real-Time Kinematic (RTK) GPS rely on surface coordinate measurements but require numerous points, especially for irregular-shaped objects. Newer technologies like Terrestrial Laser Scanners (TLS) offer high-precision alternatives by capturing thousands of points per second, expediting and enhancing the resolution of volume measurements. This study compares TLS and RTK GPS methods in measuring the volume of andesite rock stockpiles at PT Bara Tabang. This research uses a quantitative approach, involving six Ground Control Points (GCPs) measured using the Sokkia GRX2 RTK GPS on October 24, 2024. TLS generated over 8.6 million point cloud data filtered down to 35,197 points, while RTK GPS yielded 2,276 coordinates. Accuracy testing showed very small RMSE values (RMSEr: 0.008 m; RMSEz: 0.007 m), and both LE90 and CE90 demonstrated 90% confidence within a 0.012 m range. Volume calculation using Surpac software with the cut and fill method showed TLS produced a volume of 18,766 bcm (51,982 tons/m³), while RTK GPS resulted in 18,694 bcm (51,782 tons/m³), with a difference of 72 bcm or 0.211%.These results indicate that both methods offer acceptable accuracy; however, TLS provides greater data density, efficiency, and precision, particularly for complex or large-scale stockpile objects. Therefore, TLS is recommended for high-accuracy volume measurement in mining operations that require efficiency and detailed analysis.
Co-Authors Abdul Malik Adit Ajie Nugraha Agus Winarno Agus Winarno Agus Winarno, Agus Agus Winarno Ainayah Al Fatihah Albertus Juvensius Pontus Alfiyanda, Ahmad Ardhan Ismail Ardian Saputra Arya Lawing Sembiring Bandaso, Surya Bunga Bunga Deni Saldi Devi, Shalaho Dina Dina Devy, Shalaho Dwi T. S. Fambudi Evita Endar Apriliana Fajar Ramadhan Fauzan Dwi Syahputra Febryantho Pasiakan Ferry Potik Kurniawan Ferry Samuel Maringan Siregar Fransiska Yuniari Saksono Galih Handhika Galih Handhika Gideon Samari Suno Ginting, Emdananta Gokma Rohartama Gultom Harjuni Hasan Harjuni Hasan Harjuni Hasan Hasan , Harjuni Hikmawati Ilma Nurjanah Indri Tenri Datu Indri Tenri Datu Irfan Sauri Joniardi , Jovanda Ego Prisitama Jovensius Pontus, Albertus Ketut Swarningsih Koeshadi Sasmito Lhita Respati, Lucia Liganic Saprudin Litha Respati, Lucia Lucia Litha Respati Lucia Litha Respati Lucia Litha Respati Lucia Litha Respati M Dandy Al Fansya Miranda, Virgita Muhammad Ashar Alias Suara MUHAMMAD ILHAM Muhammad Rofy Fauzan Mushawir Mushawir Mustafa Wadi Mutiara Eli Nimasari Nimasari Nirwana Putri Nugroho, Windhu Nurfaysa Permadi, Singgih Respati, Lucia Litha Rety Winonazada Rety Winonazada Revia Oktaviani Revia Oktaviani Rexy Maulana Rofi Taufiqurrahman Roland Fatar Fernados Sirait Ruslan Patur S. Depari, Raja Kami Saeppudin, Ahmad Sakdillah Sakdillah Sakdillah S Sakdillah Sakdillah Saksono, Fransiska Yuniari Saskiyah Saskiyah Satriana Aulia, Andi Sendana, Aprianto Aris Shalaho Dina Devi Shalaho Dina Devy Shalaho Dina Devy Shalaho Dyna Devy Sitepu, Anysa Ariel Siti Fadlah Musarofah Tommy Trides Tommy Trides Tommy Trides Tommy Trides Tommy Trides Tommy Trides Trides, Tommy Upiani, Ihsan Vivi Widiawati windhu Nugroho Windhu Nugroho windhu Yeriko, Kamril Yosia Paonganan Zwageri, Rizky