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All Journal MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Science and Environmental Journals for Postgraduate
Rembrant, Rembrant
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Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Industrial & Manufacturing Engineering Social Sciences

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Engineering Evaluation of Self-Combustion Prevention and Stockpile Management Optimization at PT. Kuansing Inti Makmur Anaperta, Yoszi Mingsi; Frinaldi, Aldri; Rembrant, Rembrant; Lanin, Dasman; Umar, Genius; Octova, Adree; Fitri, Lira Zana; Putra, Kyrie Eleison
MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Vol 7 No 2 (2025): Motivection : Journal of Mechanical, Electrical and Industrial Engineering
Publisher : Indonesian Mechanical Electrical and Industrial Research Society (IMEIRS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46574/motivection.v7i2.384

Abstract

This study looks into the thermal risks and ways to deal with them that come with coal self-combustion at the Alam Barajo stockpile, which is run by PT. Kuansing Inti Makmur. Three coal piles: UHS 12F (±2 months), UHS 01A (±1 month), and Medium 11C (±3 months), were monitored to see how the length of time they were stored and how often it rained affected the temperature rise and the subsequent quality loss. The results reveal that the temperature of the pile rises dramatically with extended storage. For example, UHS 12F had a daily rise of 5.04°C, while UHS 01A saw a rise of 1.65°C. Self-combustion in Medium 11C reached a high of 222.1°C, which caused the ash content to rise by 2.62% and the calorific value to drop. Heavy rain made the temperatures drop for a short time, which suggests that evaporative processes caused the cooling. The study shows that present ways of managing stockpiles, especially the FIFO technique, are not being used to their full potential. To reduce the risk of combustion and keep the quality of the coal, engineers advocate making changes like regular temperature monitoring, correct compaction, covering with tarps, and distributing the coal before it catches fire.
Evaluation of The Wastewater Treatment Plant (WWTP) Management System at the Ibnu Sina Islamic Hospital Padang Yasril, Abdi Iswahyudi; Fitri Andria Sari; Frinaldi, Aldri; Rembrant, Rembrant; Apriliani, Cici; Febrina, Cory; Amelia, Kiki; Audia, Washila
Science and Environmental Journal for Postgraduate Vol. 7 No. 2 (2025): Science and Environmental Journals for Postgraduate (SENJOp)
Publisher : Postgraduate School, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/senjop.v7i2.300

Abstract

Managing hospital liquid waste is very important to prevent environmental pollution. Ibnu Sina Islamic Hospital in Padang, as a referral hospital, generates liquid waste that must be treated according to quality standards. This study aims to evaluate the management of liquid waste at RSI Ibnu Sina Padang in 2025, considering input, process, and output. The research method uses a descriptive qualitative approach or in-depth interviews thru interviews, observation, and document review with triangulation analysis. The number of informants to be studied is 6 people. The research results show that the inputs, including policies, human resources, budget, and infrastructure, are generally adequate. The planning process is carried out thru annual evaluations, implementation is based on SOPs, and routine monitoring is done with external laboratory tests. The output shows that most of the liquid waste parameters (BOD, COD, TSS, ammonia, oil and grease, pH) meet the quality standards, although fluctuations sometimes occur in pH and coliform. The main constraints are damage to the wastewater treatment plant equipment and delays in repairs due to funding/budget. It can be concluded that the management of liquid waste at RSI Ibnu Sina Padang has been quite effective, but continuous monitoring, the provision of backup equipment, and improved cross-sectoral coordination are still needed to optimally control environmental pollution.
Co-Authors Abdi Iswahyudi Yasril Adree Octova Aldri Frinaldi Apriliani, Cici Audia, Washila Dasman Lanin Febrina, Cory Fitri Andria Sari Fitri, Lira Zana Kiki Amelia, Kiki Putra, Kyrie Eleison Umar, Genius Yoszi Mingsi Anaperta