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All Journal Journal Research of Social Science, Economics, and Management Blantika : Multidisciplinary Journal Jurnal Inovasi Global
Aris Susilo
Sriwijaya University, Palembang
Astronomy Computer Science & IT Economics, Econometrics & Finance Education Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Public Health Social Sciences

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Journal : Blantika : Multidisciplinary Journal

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Manajemen Quality Control Batubara Seam A, B, dan C pada Pit Pe dan Rom 5pt Priamanaya Energi Lahat Sumatera Selatan Zahroh, Rizkinia Afifatuz; Yovanda, Ridho; Susilo, Aris
Blantika: Multidisciplinary Journal Vol. 3 No. 10 (2025): Special Issue
Publisher : PT. Publikasiku Academic Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57096/blantika.v3i10.427

Abstract

This study aims to evaluate the management of coal quality control at seams A, B, and C in the Pit and ROM area of PT Priamanaya Energi Lahat, South Sumatra. Coal quality control is crucial to keep product specifications in accordance with company standards, especially in terms of ash, sulfur, and calorific value. The research method used is quantitative descriptive, with data collection techniques through direct observation, informal interviews, documentation, and laboratory data analysis. The quality control activities observed included channel sampling, installation of barrier stakes, visual inspection of coal characteristics, and coal cleaning activities using excavators to clean coal from impurities directly in the pit area. After the coal is transferred to the ROM, quality control is continued through stack separation based on seam quality, where seams A and B are stacked in the ROM of block A, while seam C which has a higher sulfur content is placed in the ROM of block C. This process also includes handpicking, resizing activitiescoal measuring >30 cm, as well as new dumping monitoring to prevent contamination between piles. The results of the analysis showed that seams A and B were of better quality than seam C, with lower ash and sulfur content and higher caloric values. Quality control management from Pit to ROM has proven to be effective in maintaining coal quality, especially when each stage of supervision is carried out based on the characteristics of each seam. Pile separation, corrective actions in the field, and visual supervision are key in preventing mixing and degrading coal quality.
Analisis Penggunaan Kapur Tohor (CAO) Untuk Pengelolaan Air Asam Tambang di Pt Lematang Coal Lestari (LCL) Gunung Raja Muara Enim Sari, Maresta; Gumanti, Suhardiman; Susilo, Aris
Blantika: Multidisciplinary Journal Vol. 3 No. 10 (2025): Special Issue
Publisher : PT. Publikasiku Academic Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57096/blantika.v3i10.428

Abstract

The occurrence of mine acid water cannot be left unchecked because it has a negative impact on the surrounding community and the environment, both directly and indirectly. Therefore, the prevention and management of mine acid water is carried out by settling and neutralizing mine acid water using Lime and Chemical Cationic Coagulant. The purpose of this study is to find out the process of mining acid water management using the active method used at PT LCL. The result of this study is to determine the stages of mining acid water management starting from AAT pumping, chemical cationic coagulant, inlet channel pH measurement, inlet channel liming, checking the color and pH of outlet channel water if needed, as well as sedimentation, and then if the pH is in accordance with the environmental quality standards, mine acid water can be flowed to the receiving water body of the Penimir River. The dosage of lime and Chemical Cationic Coagulant used varies, according to the condition of the water in the KPL. If the pH of the water decreases, it will be sprinkled with lime, if the water is cloudy, chemical cationic coagulant will be sprinkled for precipitation. The pH of the water discharged into the river is already pH 6.
Co-Authors Ramanda, Rahmat Restu Juniah Ridhah Taqwa Sari, Maresta Suhardiman Gumanti, Suhardiman Yovanda, Ridho Zahroh, Rizkinia Afifatuz