Analysis of Sub-criteria Relationships in the Selection of Fly Ash Utilization Methods at PLTU Tarahan Lampung Using Dependence and Driving Power Analysis (DDPA)
Keywords:
fly ash, dependence, driving, sub-criteria, utilizationAbstract
The utilization of fly ash and bottom ash (FABA) as part of the waste management strategy in the power generation sector continues to be encouraged to support the implementation of a circular economy. Coal-fired steam power plant (PLTU) Tarahan as one of the generating units owned by Perusahaan Listrik Negara (PLN) Group produces a significant amount of fly ash every year, but its utilization is still limited. This research aims to identify key criteria and sub-criteria that influence each other in the alternative selection system for fly ash utilization methods at PLTU Tarahan. Dependence and Driving Power Analysis (DDPA) method was used to analyze the relationship between sub-criteria based on inputs from 23 expert respondents from academics, practitioners, and regulators. The validation results produced 4 main criteria and 27 sub-criteria that were analyzed in the affordability and reachability matrix. The mapping result showed that several sub-criteria fall into the linkage cluster—characterized by high driving and dependence power—spanning technical, environmental, economic, and social criteria. These sub-criteria need strategic attention as changes to these elements can affect the system. This study recommends the need for advanced analytical approaches such as Analytic Network Process (ANP) to prioritize fly ash utilization methods in a comprehensive and sustainable manner.
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References
PT PLN (Persero), Kolaborasi untuk Keberlanjutan: Laporan Keberlanjutan 2023. Jakarta: PT PLN (Persero), 2023.
Kementerian Energi dan Sumber Daya Mineral Republik Indonesia, "Ditjen Ketenagalistrikan Susun SOP Pengelolaan FABA," esdm.go.id, Apr. 1, 2021. [Online]. Available: https://www.esdm.go.id/id/media-center/arsip-berita/ditjen-ketenagalistrikan-susun-sop-pengelolaan-faba
PT PLN Nusantara Power Unit Pembangkitan Tarahan, Laporan pengelolaan B3, limbah B3 dan non B3 terdaftar triwulan IV tahun 2024, Jan. 2025.
Chaerul, M., Mauluddina, G., Agustina, E., & Nurdiani, D. A, “Sustainable Leachate Treatment Plant System at Landfill Site: A Multicriteria Analysis Approach,” in IOP Conference Series: Earth and Environmental Science, Institute of Physics, 2023, https://doi.org/10.1088/1755-1315/1257/1/012011
Li, P., Sun, F., Dong, Y., Wen, L., Lin, L., & LI, X. yan, “Utilization of drinking water treatment sludge with coal fly ash to make permeable bricks for low impact development,” Resour Conserv Recycl, vol. 212, Jan. 2025, https://doi.org/10.1016/j.resconrec.2024.107932
Wu, Y., Huang, G., Zhang, P., Yao, Y., Zhao, K., Shen, J., Feng, R., & Chen, N, “Synchrotron-aided exploration of REE recovery from coal fly ashes within a Canadian context,” Chemosphere, vol. 367, Nov. 2024, https://doi.org/10.1016/j.chemosphere.2024.143562.
Hu, Y., Tang, J., Fei, Y., Shang, J., Liu, P., & Liu, Y, “Enhancement of Zn adsorption on coal fly ash-based geopolymer with steel slag incorporation: Leaching behavior and performance insights,” Environmental Pollution, vol. 367, Feb. 2025, https://doi.org/10.1016/j.envpol.2025.125639
Labidi, A., Ren, H., Zhu, Q., Liang, X. X., Liang, J., Wang, H., Sial, A., Padervand, M., Lichtfouse, E., Rady, A., Allam, A. A., & Wang, C., “Coal fly ash and bottom ash low-cost feedstocks for CO2 reduction using the adsorption and catalysis processes,” Feb. 20, 2024, Elsevier B.V, https://doi.org/10.1016/j.scitotenv.2023.169179
Ayuningtyas, U., Made Agus Dharma Susila, I., Leopold Sihombing, A. S., Adi Sasongko, N., Anggraeni, P., Pribadi Adi Nugroho, T., Tjahyo Eka Darmayanti, N, “Pemanfaatan fly ash dan bottom ash sebagai material konstruksi ramah lingkungan dalam rangka mendukung kriteria bangunan hijau”, in Seminar Nasional Penelitian dan Pengabdian pada Masyarakat 2023, Sept. 23-27, 2023.
Rafieizonooz, M., Khankhaje, E., & Rezania, S, “Assessment of environmental and chemical properties of coal ashes including fly ash and bottom ash, and coal ash concrete,” Journal of Building Engineering, vol. 49, May 2022, https://doi.org/10.1016/j.jobe.2022.104040
Mathapati, M., Amate, K., Prasad, C. D., Jayavardhana, M. L., & Raju, T. H, “A review on fly ash utilization,” in Materials Today: Proceedings, Elsevier Ltd, 2021, pp. 1535–1540, https://doi.org/10.1016/j.matpr.2021.09.106
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