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Jurnal Teknologi Mineral dan Batubara
Published by Balai Besar Pengujian Mineral dan Batubara tekMIRA
ISSN : 25278789     EISSN : 19796560     DOI : 10.30556/jtmb
Core Subject : Science, Social, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Environmental Science Materials Science & Nanotechnology
Jurnal Teknologi Mineral dan Batubara adalah Jurnal yang diterbitkan oleh Pusat Penelitian dan Pengembangan Teknologi Mineral dan Batubara (Puslitbang tekMIRA). Jurnal Teknologi Mineral dan Batubara terbit pada bulan Januari, Mei, September, memuat karya-karya ilmiah yang berkaitan dengan litbang mineral dan batubara mulai dari eksplorasi, eksploitasi, pengolahan, ekstraksi, pemanfaatan, lingkungan, kebijakan dan keekonomian termasuk ulasan ilmiah terkait.
Arjuna Subject : Energi (semua kategori) - Energi (Lain-Lain)
Articles 257 Documents
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ANALISIS NERACA AIR PASCATAMBANG PADA TAILING STORAGE FACILITY M Anshari Akbar; Ginting Kusuma; Rudy Benggolo; Abie Badhurahman
Jurnal Teknologi Mineral dan Batubara Vol 19 No 1 (2023): Jurnal Teknologi Mineral dan Batubara Edisi Januari 2023
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol19.No1.2023.1330

Abstract

Tailings Storage Facility (TSF) has environmental impacts and risks arising from the tailings storage. Water balance is an important component in TSF management. In this study, the water balance was analyzed to determine the method of handling TSF during mine closure, to reduce the risk of environmental pollution. Analysis of the rainfall and potential evaporation parameters was used to calculate the water discharge that must be managed in mine closure. The method of selecting daily maximum rainfall data was used to analyze the need for TSF facilities. Meanwhile, for mine closure TSF filling, scenarios for extreme climate conditions were made for the rainfall and potential evaporation parameters which were then analyzed to determine the water balance. Based on the daily data analysis, the maximum amount of water discharge that must be managed at the TSF was 1.511 m3/s. Meanwhile, for TSF charging, it was found that the fastest charging scenario took 31.8 months and for the longest charging it took 110.4 months. To determine the method of handling TSF during mine closure, the results of water balance analysis for several scenarios of climatic conditions resulted in the minimum thickness of the water column ranging from 6 - 8 m. Based on the analysis of several scenarios of climatic conditions, the mine closure method for handling TSF was water cover.
ESTIMASI SUMBERDAYA ANDESIT MENGGUNAKAN METODE ORDINARY KRIGING BERDASARKAN PENGUKURAN GEOLISTRIK DI PT. ZLAW GROUP BOYOLALI, JAWA TENGAH Hendro Purnomo; Rizqi Prastowo; Muhammad Hafizh Hibullah; Setyo Pambudi
Jurnal Teknologi Mineral dan Batubara Vol 19 No 1 (2023): Jurnal Teknologi Mineral dan Batubara Edisi Januari 2023
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol19.No1.2023.1336

Abstract

PT. Zlaw Group Boyolali is a company of andesite mining located in Wates Hamlet, Seboto Village, Gladagsari District, Boyolali Regency, Central Java Province. The potential of andesite in the area is encouraging and the absence of supporting data about the distribution and resources of andesite brings PT. Zlaw Group Boyolali to conducting exploration. The objective of this study is to analyze the interpretation of geoelectric measurements of the dipole-dipole configuration and calculate the volume of andesite resources based on geostatistics optimization at the research location and compare the estimation results with previous studies. The research activity was carried out by measuring 2-dimensional geoelectrical resistivity using a dipole-dipole configuration of 12 passes, which covered 100% of the research area. Based on the results of geostatistics optimization, parameters obtained include: nugget 0.224053, sill 0.641390, range 67.749, major/semi-major 1.188, and major/minor 2.073. Soil volume is 1,245,750 m3 with a tonnage of 3,238,950 tons, a weathered andesite volume of 999,656 m3 with a tonnage of 2,599,106 tons, and fresh andesite volume of 1,437,925 m3 with a tonnage of 3,738,605 tons.
ANALISIS SUSTAINABLE DEVELOPMENT BERBASIS KOMODITAS TIMAH DI PROVINSI KEPULAUAN BANGKA BELITUNG MENGGUNAKAN PENDEKATAN DATA PANEL Sitra Wahyu Listiawati; Aryo Prawoto Wibowo; Fadhila Achmadi Rosyid
Jurnal Teknologi Mineral dan Batubara Vol 20 No 1 (2024): Jurnal Teknologi Mineral dan Batubara Edisi Januari 2024
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol20.No1.2024.1338

Abstract

Sustainable development is one of the important aspects of the development of a region. Development planning of a region has many obstacles, one of them is the dependence on a certain sector that becomes a source of regional income, such as the tin mining sector in Bangka Belitung Province. Sustainable development has several goals that are represented by three main aspects; economic, social, and environmental aspects of the six regencies in the Bangka Belitung Island Province. The economic aspect uses Gross Regional Domestic Product data from the tin mining sector, the social aspect uses Human Development Index data, and the environmental aspect uses the Environmental Quality Index data. These three aspects will be used as indicators to obtain the value of the Sustainable Development Index in the Bangka Belitung Islands Province. This study used the panel data method to examine the influence of the tin mining sector as one of the largest contributors to regional income, on sustainable development in the Bangka Belitung Islands Province. The panel data method was used to analyze the economic, social, and environmental aspects of the Sustainable Development Index so that the most influence sustainable development aspect in the Bangka Belitung Islands Province can be identified. The results of this study show that the mining sector  had the least contribution of 0.17 units to the Sustainable Development Index compared to the Human Development Index value of 5.9 units and 0.48 units of the Environmental Quality Index value which represented social and environmental aspects.
POTENSI LONGSOR BERDASARKAN ANALISIS KINEMATIK PADA AREA LOW WALL PT. BUKIT ASAM TBK, SITE TANJUNG ENIM, SUMATERA SELATAN Siti Khodijah; Utari Sonya Monica; Jodistriawan Ersyari; Nur Khoirullah; Raden Irvan Sophian
Jurnal Teknologi Mineral dan Batubara Vol 19 No 2 (2023): Jurnal Teknologi Mineral dan Batubara Edisi Mei 2023
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol19.No2.2023.1363

Abstract

PT. Bukit Asam Tbk is an open-pit coal mining company in Muara Enim, Soutgh Sumatra. In open-pit mining activities, slope stability analysis is carried out to evaluate the mine in order to create a safe mining process. Several types of slope failure are associated with geological structures. This research was conducted to identify the type of landslides in the low wall area of Pit X PT. Bukit Asam Tbk and determine the slope stability factor based on discontinuity data using the scanline method at 8 observation points that represent the lithology of the low wall area. Methods used in this research is kinematic analysis, slope stability analysis on plane slide types and wedge. Based on the kinematic analysis, it was identified that the Pit X low wall area has the potential for plane and wedge type landslides with a relatively stable slopes.
OPTIMASI DOSIS PUPUK NPK DAN ASAM HUMAT DALAM MEMPERBAIKI KUALITAS TANAH BEKAS TAMBANG BATUBARA DAN PERTUMBUHAN SENGON SOLOMON Gindo Tampubolon; Muhammad Ikrar Lagowa; Jhoy Michael Simarmata; Boy Julius Sitanggang
Jurnal Teknologi Mineral dan Batubara Vol 19 No 3 (2023): Jurnal Teknologi Mineral dan Batubara Edisi September 2023
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol19.No3.2023.1365

Abstract

Solomon Sengon (Paraserianthes mollucana (Miq.) Barneby & J.W. Grimes) is a plant species in land reclamation activities for former coal mines. This is because Solomon sengon has advantages including: very fast growth, adaptive to extreme environments, and quite high economic and ecological values. Former coal mining soils are generally degraded and have low organic matter content, essential nutrient availability, CEC, and base saturation. These conditions do not support optimal plant growth. The aim of this study was to examine the effect of NPK plus humic acid fertilizer on several soil chemical properties and the growth of the Solomon sengon plant. This research was carried out in the coal mining concession area in Amplelu Mudo Village, Tembesi District, Batang Hari Regency, Jambi Province. The study used a randomized block design (RBD) with doses of NPK plus humic acid fertilizer in 9 levels and repeated 3 times, so there were 27 plots or experimental units. The observed variables were: pH, Al-dd, available-P, K-dd, height increase, diameter increase and root dry weight. The results showed that the application of NPK fertilizer 100 g plus humic acid 20 g/plant hole (P5) was the best treatment in improving soil K-dd with an increase in plant height of 110.83 cm, diameter of 28.65 mm and BKA of 10.63 g , there was an increase in the height of the Solomon sengon plant by 101.21%, diameter by 65.13% and BKA by 75.12% compared to the administration of 50 g NPK plus 10 g humic acid (P1). Increasing the dose of NPK and humic acid from 50 g of NPK plus 10 g of humic acid to 100 g of NPK and 20 g of humic acid has the potential to significantly increase the growth of the Solomon sengon plant.
RANCANGAN GEOMETRI PELEDAKAN YANG EFISIEN UNTUK MENDAPATKAN DISTRIBUSI UKURAN FRAGMENTASI BATU GAMPING Murad; Septami Setiawati; Wahdaniah Mukhtar
Jurnal Teknologi Mineral dan Batubara Vol 19 No 2 (2023): Jurnal Teknologi Mineral dan Batubara Edisi Mei 2023
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol19.No2.2023.1386

Abstract

The rock fragmentation distribution resulting from blasting is one of the important factors of the blasting method design model for dismantling excavated materials. Calculation of rock fragmentation resulting from blasting using the RL theory. Ash, CJ. Konya, and ICI-Explosive. The method for determining the size of rock fragmentation resulting from blasting and analysis of the fragmentation size distribution in blasting activities uses the Kuz-Ram method and Split Desktop 4.0 software. A good blasting geometry design from a technical and economical point of view enables achieving target production according to the design made by the company in producing an average fragmentation size of limestone <50 cm. Blasting geometry applied by PT. Semen Padang produces a hole volume of 275 m3 with a fragmentation of 53.46 cm. The results of the fragmentation design are based on the RL Ash theory and the Kuz-Ram method with a volume of300.67 m3each hole anda fragmentation size of 50.07 cm, CJ. Konya analysis resulted in a hole volume of 422.4 m3 with an average fragmentation of 44.17 cm, and ICI-Explosive method resulted in a hole volume of 285 m3 with an average fragmentation of 47.86 cm. Based on blasting geometry calculation, fragmentation analysis and economic calculations, it is shown that the blasting geometry suggestion using CJ Konya theory is more optimal and feasible to apply because it results in a larger hole blasting volume, higher percentage of fragmentation of <50 cm which is compatible with the bucket capacity, as well as higher revenue and profit compared to the other two methods.
STUDI PENGARUH PENGGILINGAN KONDISI KERING DAN BASAH TERHADAP KINETIKA DAN KARAKTERISTIK DISTRIBUSI UKURAN BUTIR BIJIH SULFIDA KOMPLEKS GALENA SFALERIT – UJI PENDAHULUAN Indah Pratiwi; Edy Sanwani
Jurnal Teknologi Mineral dan Batubara Vol 19 No 2 (2023): Jurnal Teknologi Mineral dan Batubara Edisi Mei 2023
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol19.No2.2023.1452

Abstract

Grinding is generally carried out in wet conditions, but issues regarding water conservation and high-water treatment costs encourage the application of grinding in dry conditions. Both produce products with certain characteristics that affect the success of the next process. Grinding of P100 6 mesh (3.36 mm) ore was performed using steel ball media with dry and wet grinding with 33.33% solids for 5, 10, 15, 20, 25, and 30 minutes. Particle size distribution of the grinding product was obtained from the wet sieving process and the -200 mesh (-75µm) ore particles were analyzed using a laser diffraction particle size analyzer. The Alyavdin grinding kinetics equation model was used to study the kinetics of ore grinding behavior and the particle size distribution and its characteristics consisting of uniformity index, size modulus and fractal dimension were studied using the logistic, Rosin-Rammler (RR) and Gates-Gaudin-Schuhmann (GGS) equation model. Equivalent particle size (EPS) and specific surface area (SSA) observations were carried out on the -200 mesh (-75µm) grinding product. Grinding in dry condition is more effective in reducing the size of complex galena-sphalerite sulphide ore, indicated by high grinding rate with the highest K value of 0,135/minute, high cummulative % undersize, low size modulus, high uniformity index, high fine particle and high SSA compared to wet grinding. Alyavdin's kinetics model can describe the grinding kinetics of galena sphalerite complex sulfide ore, while the particle size distribution follows the logistic equation model.
FLOTASI KASITERIT DARI BIJIH TIMAH PRIMER TIPE SKARN ASAL PULAU BELITUNG Rustam Kamoda; Edy Sanwani
Jurnal Teknologi Mineral dan Batubara Vol 19 No 3 (2023): Jurnal Teknologi Mineral dan Batubara Edisi September 2023
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol19.No3.2023.1472

Abstract

Indonesia as one of the world's tin producers, not only has tin reserve from secondary deposit, but also has tin reserve from skarn-type primary deposit located on Belitung Island. The presence and characteristics of cassiterite in skarn-type of primary tin ore can be confirmed through sample characterization and have the potential to be separated from impurity minerals by flotation method. There are several factors that can affect the separation of valuable mineral from impurities through the flotation method, namely minerals association, the use of collector type scheme, pH condition of flotation and the use of depressant. The result of sample characterization showed that the primary tin ore of the skarn type from Belitung Island contained Sn in a low concentration of 0.1615% in the form of cassiterite. The flotation experiments carried out in two schemes. The first scheme was flotation on samples using SHA, SO and SHA + SO as collectors in the different pH values (pH 6, 7, 8, and 9) and flotation with the absence and presence of depressant at pH 8 for each type of collector. Recovery, grade, percent mass pull, enrichment ratio, separation efficiency, and selectivity index were the parameters used to assess flotation performance. Generally, the experimental results showed that cassiterite flotation in different pH values tend to show a better performance at pH 8. The flotation results of the three type of collectors showed that the recovery of Sn from SHA collector < SO < SHA+SO. In term of grade in the concentrate, the Sn grade of SO < SHA+SO < SHA collector. Flotation experiments from the three type of collectors in the absence and presence of depressant showed that flotation performance was better in the absence of depressant.
POTENSI DEPOSIT WOLFRAM DI INDONESIA: STUDI KASUS TOBOALI - BANGKA SELATAN Imelda Eva Roturena Hutabarat; Sabtanto Suprapto; Priatna Priatna; Maryono Maryono; Rudiyansah Rudiyansah
Jurnal Teknologi Mineral dan Batubara Vol 19 No 2 (2023): Jurnal Teknologi Mineral dan Batubara Edisi Mei 2023
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol19.No2.2023.1478

Abstract

Bangka island is one of the islands in the Southeast Asian Tin Belt that makes Indonesia the largest tin (Sn) producer in the world. The carrier of wolframite is a by product mineral of the mineral tin (cassiterite). This study aims to study the presence and type of wolfram-as by product in the tin deposits on Bangka island. The research area was conducted on the eastern edge of Klabat Granite in Kepoh Village, Toboali District, South Bangka, at coordinates of 106o 31' 58" BT, 2o 56' 56 " LS. The result shows the presence of wolfram with grade of wolfram in veins reaching 8287 ppm. Wolfram was identified as an associated mineral in the tin mineralization system in Toboali along with rare earth metals (LTJ), molybdenum (Mo) and platinum (Pt). The results of analytical studies (UV, XRF, ICP OES, mineragraphy) on Toboali area minerals show the presence of wolfram in ores, concentrates, slag, and floor crusts. The identified wolfram minerals are wolframite (Fe.Mn)WO4 and scheelite (CaWO4) which are characterized through differences in properties such as color, fluorosence, magnetic, specific gravity and hardness values. The results obtained showed the presence of wolfram in Toboali area with wolfram content of 742 ppm in ore and also in the tin process, specifically in slag II of 1.02%. In addition, wolfram is indicated on the furnace floor and on the anode slime. Indonesia as one of the countries that owns wolfram minerals needs to continue the wolfram extraction process so that Indonesia receive the added value from its minerals.
PEMASTIAN VALIDITAS PENGUJIAN KADAR SENG SECARA KOMPLEKSOMETRI TERHADAP MODIFIKASI TEKNIK PREPARASI DALAM KONSENTRAT SENG SULFIDA Fanny Rahman Ekawandi; Arie Hardian; Herawati; Inda Mapiliandari
Jurnal Teknologi Mineral dan Batubara Vol 19 No 3 (2023): Jurnal Teknologi Mineral dan Batubara Edisi September 2023
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol19.No3.2023.1479

Abstract

Sphalerite is one of the sulfide ore minerals that serves as the raw material for zinc sulfide concentrate (ZnS). Sphalerite in nature needs to be processed through a concentration process to become a high-value ZnS concentrate. The determination of zinc (Zn) content in the ZnS concentrate is carried out using complexometric methods, referring to the modified ISO 13658:2000 method in the preparation stage. In this research, the validity of the test results was conducted using several parameters, including precision testing (repeatability and reproducibility), accuracy (recovery and test result comparison with CRM value), and measurement of relative uncertainty in Zn content determination in ZnS concentrate using the modified ISO 13658:2000 method, it is conducted by two analysts. Certified reference material (CRM) O354 with a Zn content range of (49,30±2,46)% was used as a sample in this research. Zinc content in CRM O354 by Analyst X obtained 49.30% with RSD=0.37% and range of Recovery=(99.5-100.6)%, while Analyst Y obtained 49.03% with RSD=0.64% and range of Recovery=(98.1-99.9)%. Mean of results of the determination of Analyst X and Analyst Y is 49.13% with an uncertainty expanded by 1.90% so, Zn content is obtained at (49,13±1,90)% and the relative uncertainty is obtained at 3.87%. The minimum criteria for precision testing in terms of repeatability are RSD<2/3 CV Horwitz, and for reproducibility (F-test), Ftest<Ftable, for accuracy testing in terms of Recovery=(98-102)%, inter-analyst comparison, and test result comparison with CRM value (t-test), ttest<ttable as well as the minimum criteria for measurement of relative uncertainty<5%. Therefore, the test results of the modified ISO 13658:2000 method for Zn determination in ZnS concentrate have fulfilled all the validity parameters of the test results.

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