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All Journal Reaktor Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Ilmu Lingkungan JURNAL TEKNOLOGI LINGKUNGAN Jurnal Bahan Alam Terbarukan Jurnal Sumberdaya Alam dan Lingkungan Jurnal Dampak Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Jurnal Wilayah dan Lingkungan EnviroScienteae Jurnal Purifikasi Jurnal Serambi Engineering Media Ilmiah Teknik Lingkungan Jurnal Permukiman Indonesian Journal of Life Cycle Assessment and Sustainability Al-Ard: Jurnal Teknik Lingkungan Jurnal Teknik Lingkungan Applied Research in Science and Technology International Journal of Advanced Multidisciplinary Jurnal Manusia dan Lingkungan
Mochammad Chaerul, Mochammad
Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung Jalan Ganesha 10, Bandung 40132 Indonesia
Agriculture, Biological Sciences & Forestry Humanities 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 Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Social Sciences Other

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Journal : Applied Research in Science and Technology

 1 
The Effect of Coal and Biomass on the Generation of Fly Ash and Bottom Ash at the Coal-Fired Power Plant Asam Asam Unit 1-4, South Kalimantan Abidin, Khoirul; Chaerul, Mochammad
Applied Research in Science and Technology Vol. 5 No. 1 (2025): Applied Research in Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/areste.v5i1.78

Abstract

Background: One of the main environmental challenges in Coal-Fired Power Plant (CFPP) operations is the large amount of Fly Ash and Bottom Ash (FABA) produced, which creates significant waste management issues. Reducing FABA production through biomass co-firing has become a potential solution, yet its effectiveness in actual operations remains underexplored. Asam Asam Power Plant Unit 1–4, with a capacity of 4 × 65 MW in South Kalimantan, is one of the power plants that utilize sawdust biomass in its operations.Aims: This study aims to analyze the effect of coal and biomass consumption on FABA generation during 2022, 2023, and 2024.Methods: The method employed is multiple linear regression using Minitab version 21.4.1 software, with coal consumption (X1) and biomass consumption (X2) as independent variables and FABA generation (Y) as the dependent variable.Result: The results show that coal consumption has a positive relationship with FABA generation, while biomass consumption shows a negative relationship. ANOVA test results indicate that only coal consumption significantly affects FABA generation. A notable decrease in FABA production in 2024 signifies an increase in biomass utilization in the fuel mixture, highlighting its potential in reducing solid waste generation from CFPP operations. A simulation involving three biomass-coal blending scenarios demonstrated that incorporating 20% biomass into the fuel mix can reduce FABA generation by up to 27.79%.
Characterization of Fly Ash from Coal-fired Steam Power Plant Tarahan, Lampung, and Its Potential as a Soil Amendment Mutaqin, Adiksa Insan; Chaerul, Mochammad
Applied Research in Science and Technology Vol. 5 No. 2 (2025): Applied Research in Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/areste.v5i2.80

Abstract

Background: Fly ash, a byproduct of coal combustion in steam power plants, has significant potential for utilization, particularly as a soil amendment. However, in Indonesia, including at the Tarahan coal-fired steam power plant (PLTU Tarahan), most fly ash remains underutilized and is primarily disposed of in landfills.Aims: This study aimed to analyze the characteristics of fly ash produced at PLTU Tarahan and evaluate its potential for recycling through three utilization pathways: biosilica production, application as a soil-stabilizing agent, and incorporation into compost mixtures.Methods: Samples were collected from three distinct locations and analyzed at a certified laboratory using standardized procedures. The resulting data were subsequently compared with values reported in existing literature and interpreted using a descriptive analytical approach.Result: Characterization results indicated that the fly ash belongs to Class F, with high silica (SiO₂) content and low calcium oxide (CaO), making it pozzolanic but non-cementitious. Each reuse pathway was assessed in terms of technical compatibility, infrastructure readiness, pretreatment requirements, market potential, and environmental risk mitigation. The findings showed that biosilica production offers high added value but requires advanced chemical extraction technology. Soil stabilization using fly ash and lime is technically feasible for internal infrastructure and land reclamation projects, offering immediate benefits with minimal pretreatment. When mixed with organic materials such as press mud or combined with garbage enzyme, fly ash also enhances compost maturity, nutrient content, and enzymatic activity. Based on these results, a phased implementation strategy is recommended, beginning with applications that are low-risk and compatible with existing infrastructure. These findings contribute to the development of more adaptive and sustainable fly ash management strategies within coal-fired power plants. To support practical implementation, further laboratory- and field-scale studies are needed to validate long-term performance. Additionally, future research should incorporate multicriteria decision-making approaches, such as the Analytic Network Process (ANP), to comprehensively evaluate technical, environmental, social, and economic factors in selecting the most appropriate utilization pathway.
Co-Authors Abidin, Khoirul Adi Susangka Aghasa Aghasa Aloysius Gonzaga Holy Prajitna Amalia Dengo, Vita Andana, Revrian Fajhri Annisa Kusuma Wardhani Arry Febrianto Aselna, Intan Har Astried Sunaryani Astried Sunaryani, Astried Azhra Amanda, Tiffany Benno Rahardyan Dewi, Titara Puspita Dhia Atikah Aliyyu Elprida Agustina Fakhrunnisa, Afifah Gan Gan Dirgantara Gendis Ayu Satiti Irawan Haryo Satriyo Tomo I Made Wahyu Widyarsana Ika Artika Ika Artika Ika Kartika Ika Kartika Irawan, Gendis Ayu Satiti Laksana, Winda Lucky Lie Junpi Lucky Lie Junpi, Lucky Lie Michael Puturuhu Milenia, Desmonda Fitri Mutaqin, Adiksa Insan Ninda Ekaristi Ninda Ekaristi, Ninda Qomarudin Helmy Rahayu, Silda Adi Rangga Akib Revrian Fajhri Andana Roy Jeremiah Pasaribu Sharfina Ulfa Zatadini Sukandar Sukandar Susangka, Adi Syiffa Rahmania Titara Puspita Dewi Venessa Allia Venessa Allia Aiman Yahdini Qornin Mardiyah