This research was conducted at the Pit Quarry of PT Bukit Asam (Persero) Tbk, specifically in the andesite mining area of Bukit Tapuan, with the objective of analyzing the influence of discontinuity plane orientation on the throw direction and fragmentation size distribution resulting from blasting activities. The research method included field observations using scanline mapping to obtain disc…
Batubara Seam S pada Formasi Muara Enim di wilayah IUP PT Baturona Adimulya menunjukkan variasi kualitas vertikal berupa anomali kadar abu dan sulfur, terutama pada bagian atap seam. Penelitian ini bertujuan mengidentifikasi karakteristik litologi dan stratigrafi vertikal, menganalisis kualitas dan peringkat batubara, serta menginterpretasikan lingkungan pengendapan sebagai faktor pengontrol va…
This study is motivated by the absence of a clear mechanism for determining the minimum funding allocation for the Community Development and Empowerment Program (PPM) within coal mining companies, particularly in Lahat Regency. Existing regulations, specifically the Decree of the Minister of Energy and Mineral Resources No. 1824 K/30/MEM/2018, merely mandate the inclusion of PPM costs in compan…
Coal-fired power plants generate large quantities of fly ash and bottom ash (FABA), which may pose environmental problems if not properly managed. In line with non-hazardous waste management policies and sustainable development principles, the utilization of FABA as construction material has become a promising alternative. This study aims to analyze the effect of fly ash and bottom ash composit…
This study aims to analyze the implementation of Integrated Marketing Communication (IMC) at MSME Roti Keju President in an effort to support brand continuity. This research employs a qualitative approach with an explanatory design. Data collection techniques were conducted through observation, in-depth interviews, and documentation. The marketing communication strategy serving as the basis for…
The loss of coal reserves in mining concession boundaries is commonly caused by conventional pit designs based on administrative limits, which create boundary pillars and result in stranded coal. This study aims to evaluate the technical and economic feasibility of implementing a sharing wall mining concept as a coal resource conservation strategy in the boundary area of PT Merapi Energy Coalâ€â€¦
PT Baturona Adimulya merupakan perusahaan jasa industri pertambangan yang termasuk dalam anggota grup perusahaan PT Ucoal Sumberdaya. PT Baturona sedang mengerjakan salah satu proyek di Kecamatan Keluang, Babat Supat, Kabupaten Musi Banyuasin, Provinsi Sumatera Selatan. Aktivitas penambangan memerlukan sistem penyaliran agar tidak menganggu aktivitas produksi. Pada Pit 5 tumpang tindih antara s…
PT Putra Muba Coal has a total IUP area of 2,947 ha and since 2008 has been fulfilling coal demand for various local businesses and international markets. The company is one of the concession holders with South Sumatra Governor number 316/PTS/DIPARTAMBEN/2011. Based on the Minister of Energy and Mineral Resources, from the process of mining activities to shipping, the number of coal losses is m…
Coal mining activities at PT Ulima Nitra Site BKL use an open-pit mining method (surface mining). The open-pit mining method forms a large depression, causing water entering the pit to potentially accumulate and create ponding if not properly managed, as the water comes from runoff flowing into the pit. Based on field observations, the main sump at PT Ulima Nitra Site BKL, with a volume of 34,9…
Geometri jalan adalah faktor utama yang erat kaitannya dengan aktivitas alat angkut, jika geometri jalan ini masih tidak sesuai dengan standarnya dan ditambah dengan kondisi permukaan yang juga kurang baik, dapat berakibat pada peningkatan cycle time sehingga menyebabkan produktivitas dari alat angkutnya menjadi menurun. Oleh karena itu, perlu untuk melakukan analisis geometri jalan agar dapat …
PT Bumi Sekundang Enim Energy has an area of 14,960 ha for coal mining. One of the factors that causes the company to increase its production target in 2024 is because the need for coal is increasing. In the previous year the production target was set at 1,000,000 Metric Tons and it is planned to increase it in 2024 to 2,000,000 Metric Tons. In order to support the achievement of increasing pro…
The coalliquefaction technique used in this research is direct liquefactionof solvent derivatives into DCLyield product, which is an analogy of combining solvent extraction and catalityc liquefaction processes. This method is able to solve the technological problems of processing low-grade coal (lignite) into liquid fuels using materials and materials available in the market and the surrounding…
PT. Bukit Asam Tbk adalah salah satu perusahaan tambang di Indonesia yang beroperasi dalam bidang penambangan dan penjualan batubara. Kegiatan penambangan batubara di PT Bukit Asam Tbk direncanakan dalam sekuen penambangan bulanan. Kondisi aktual di lapangan menunjukkan terjadi ketidaksesuaian dan ketidaktercapaian terhadap rencana sekuen penambangan. Tujuan penelitian ini adalah untuk mengetah…
Pit design optimization is a crucial stage in mining operations as it determines the final pit limit that is technically and economically optimal. This study was conducted at PT Ulima Nitra, Tbk., Wiraduta Sejahtera Langgeng Site, Pit Block 2 DUE, Muara Enim, South Sumatra. The aim of this research is to design an optimized pit by considering the mining boundary and coal contract price to maxim…
This study aims to determine the best operating conditions based on the effect of Ni/C catalyst weight percentage and temperature on hydrocracking of lignite coal pyrolysis products. The hydrocracking process was carried out using variations in catalyst weight percentage of 5, 10, 15, dan 20% also using temperature variations of 400, 450, 500, 550, and 600°C. Catalyst characterization was cond…
In this research, lignite coal is used as raw material for making coal oil. The method used is the pyrolysis method using temperature variations of 450-600°C. The coal oil resulting from pyrolysis was analyzed using GC-MS, %yield, specific gravity, and heating value. The optimal temperature obtained in the lignite coal pyrolysis process is 500°C. The results of GC-MS analysis showed that the …
Open-pit mining requires safe slope designs, as instability can lead to failures such as the landslide that occurred at the lowwall of Pit 1 North Block at PT Ulima Nitra Tbk. Variations in lithology and increases in groundwater saturation heighten the risk of slope failure, necessitating a comprehensive technical assessment. This study aims to analyze geotechnical parameters, determine the act…
PT Bahana Selaras Alam adalah perusahaan konsultan pertambangan dan perusahaan jasa pertambangan terintegrasi yang berbasis di Indonesia. Dengan luas area kerja 68.85 ha, perusahaan ini menargetkan produksi sebesar 626.072,32 ton batubara dan 1.233.996,49 pada tahun 2024. Maka dari itu diperlukan adanya perencanaan dan redesign pit, kapasitas disposal, dan banyaknya unit yang dibutuhkan agar ta…
PT. Bukit Asam Tbk is one of the coal mining companies that employs open-pit mining to extract coal. After the mining activities are carried out, reclamation activities are then implemented. The background of this research is that environmental damage often occurs in every mining activity, including the degradation of environmental quality, such as ecosystem destruction, and even poses a threat…
PT Victor Dua Tiga Mega adalah perusahaan pertambangan dalam bidang batubara. Penelitian ini mengambil physical availability peralatan dari Bulan November 2024 – Januari 2025. Lifetime merupakan umur dari peralatan sejak alat tersebut pertama kali digunakan sedangkan Physical availability merupakan kemampuan fisik alat untuk melakukan pekerjaannya secara maksimal tanpa adanya kendala kerusaka…
PT Victor Dua Tiga Mega is a company engaged in mining with a Mining Business License (IUP) of 3464 Ha, located in Luwe Hulu, West Lahei District, North Barito Regency, Central Kalimantan Province. Overburden or coal cover material that has been excavated needs to be moved to a location called a disposal area. Inpit dump is an area located within the mine site that is used to stockpile overburd…
Fluctuations in coal prices pose a challenge for companies in optimizing the economic value of mining operations. In response, PT Bukit Asam Tbk has proposed two new boundaries for the design of a new pit in Pit 2 Banko. This study aims to design a new pit based on the proposed boundaries, plan the forecast of excavation and hauling equipment to determine the annual production until the end of …
Unsur yang paling berpengaruh terhadap sifat-sifat baja adalah unsur karbon, meskipun unsur-unsur lain tidak bisa diabaikan begitu saja. Cara yang digunakan untuk menaikkan kandungan unsur karbon di kulit baja adalah dengan proses karburisasi. Penelitian ini dilakukan dengan cara, spesimen dan medium karbon yang telah ditambah dengan katalisator dimasukkan kedalam kotak baja kemudian dilakukan …
Naiknya harga BBM khususnya harga minyak tanah mencapai kisaran Rp 3000 per liter di tingkat pengecer membuat beberapa industri kecil dan menengah serta rumah tangga menjerit, menanggapi hal demikian maka penulis mencoba untuk membuat bahan bakar alternatif yang lebih murah dan terjangkau yaitu briket batubara. Telah kita ketahui dicanangkannya Sumatera Selatan sebagai Lumbung Energi Nasional k…
Perancangan ini bertujuan untuk mendapatkan kompor briket batubara yang lebih efisien dibandingkan dengan kompor yang telah ada dengan harga yang ekonomis. Salah satu untuk meningkatkan efisiensi kompor briket adalah dengan mengisolasi dinding kompor agar kalor yang dihasilkan kompor tidak banyak yang hilang melalui dinding kompor dan menggunakan pengarah api agar api lebih terfokus dan tidak m…
Penelitian tentang pembuatan karbon aktif dari batubara subbituminus sebagai adsorben telah dilakukan. Tujuan penelitian ini adalah untuk mengetahui bagaimana pengaruh (variasi) konsentrasi aktivator HC1 terhadap daya serap karbon aktif dari batubara subbituminus. Metode yang digunakan adalah metode eksperimen dengan perlakuan variasi konsentrasi aktivasi HCl 0% ,5% ,10%, 15% Pengambilan sampel…
Tujuan penelitian ini adalah untuk memodifikasi ruang alat pengering ikan tipe plat berongga dengan sumber energi briket batubara agar suhu yang dihasilkan konstan dan merata sampai pada bagian rak paling atas. Penelitian ini telah dilaksanakan di Bengkel Teknik Pertanian, Jurusan Teknologi Pertanian, Fakultas Pertanian, Universitas Sriwijaya, pada bulan Februari sampai Agustus 2005. Kapasitas …
Tujuan penelitian ini adalah untuk mengetahui dan mempelajari distribusi suhu pada ruang pengering tipe plat berongga serta menggunakan metode lain untuk mencapai hasil distribusi suhu yang seragam. Penelitian ini telah dilaksanakan di Bengkel Teknik Pertanian, Jurusan Teknologi Pertanian, Fakultas Pertanian, Universitas Sriwijaya, pada bulan Juli 2005 sampai Agustus 2005. Pengujian keseragaman…