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Journal : PENDIPA Journal of Science Education

Perapuhan Uranium dengan Metode Hydride–Dehydride: Meningkatkan Efisiensi Bahan Bakar Nuklir dalam Mendukung Transisi Energi Sakina, Zafira Naja; Ardyanto, Fakhriyan; Supriyadi, Imam; Santoso, Budi
PendIPA Journal of Science Education Vol 9 No 3 (2025): October
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.9.3.836-843

Abstract

The Hydride–Dehydride (HDH) method is a critical technology in uranium processing, capable of improving the efficiency and quality of nuclear fuel through a more precise embrittlement process compared to conventional techniques. This technology ensures uniform particle size and minimizes material loss during fabrication. This study was conducted using a literature review approach, supported by experimental data obtained during a 2022 internship at the Research Center for Nuclear Fuel Cycle and Radioactive Waste Technology (PRTDBBLNR). The focus of the investigation was the characterization of uranium–molybdenum (U-Mo) alloy before and after the HDH treatment process. The results indicate that heat treatment at 500 °C for 5 hours followed by annealing significantly increases the hardness of the U-Mo alloy. A phase transformation was also observed, indicated by the presence of α-U in all post-treatment samples. Nevertheless, the density of the alloy showed no substantial change. The HDH process successfully produced high-purity U-Mo powder at various molybdenum concentration levels. However, increasing Mo content resulted in lower powder density. The morphology of U-7Mo powder exhibited flake-like shapes with a rough surface, which is favorable for further fabrication in advanced fuel element production. Overall, these findings reinforce the relevance and significant potential of HDH technology in supporting advanced nuclear reactor fuel production and strengthening national nuclear energy security in a sustainable manner.The Hydride–Dehydride (HDH) method represents an important innovation in uranium processing to improve the efficiency and quality of nuclear fuel. This technology enables a more precise embrittlement of uranium compared to conventional methods such as milling and crushing, resulting in more uniform particle size and reduced material loss throughout the process. This study adopts a literature-based approach supported by practical work conducted at the Center for Research on Nuclear Fuel Cycle Technology and Radioactive Waste Management (PRTDBBLNR) in 2022, in order to evaluate the effectiveness of HDH in strengthening nuclear energy security in Indonesia. The analysis shows that HDH improves the microstructural quality of uranium and enhances processing yield by minimizing waste generation. These advantages highlight the high relevance of HDH technology in supporting the development of Generation IV nuclear reactors, which emphasize efficiency and sustainability within the fuel cycle. However, its implementation in Indonesia still faces challenges, particularly in terms of industrial infrastructure readiness, safety regulations, and nuclear material protection. Therefore, strategic policies are required to promote further research and technological investment, as well as strong collaboration between academia, government, and industry. Integrating HDH into the national uranium processing roadmap has the potential to establish this technology as a key pillar in ensuring a sustainable nuclear fuel supply and enhancing Indonesia’s energy security in the future.
AP Anesthesia Analysis of the Implementation of the Refuse-Derived Fuel (RDF) Pilot Test in Rorotan, North Jakarta, in Advancing National Energy Security: Indonesia Anesthesia, Annisa Priska; Supriyadi, Imam; Purwantoro, Susilo Adi
PendIPA Journal of Science Education Vol 9 No 3 (2025): October
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.9.3.853-860

Abstract

The escalating national energy demand and Indonesia's substantial reliance on fossil fuels underscore the imperative for the development of more sustainable alternative energy sources. Conversely, the magnitude of waste management challenges in DKI Jakarta persists, exerting an additional strain on the operational capacity of the Bantargebang TPST. Refuse Derived Fuel (RDF) is regarded as a strategic solution that can address the need for waste reduction and the provision of alternative energy. The objective of this study is to analyze the implementation of the RDF Plant Rorotan trial in DKI Jakarta using the implementation theory approach of Mazmanian & Sabatier and Allan McConnell's Policy Failure Theory model (2010). The methodological approach employed is descriptive qualitative, with data collection through documentation studies and observation.  The results of the study indicate that RDF Rorotan faces various technical, institutional, and social obstacles. According to the findings of Mazmanian & Sabatier's analysis, the characteristics of the problem, the clarity of policy objectives, coordination between relevant actors, and social environment support proved inadequate for achieving effective implementation. The presence of technical challenges, including elevated moisture content in waste, unpublished RDF quality, the ambiguity of off-takers, and complaints from residents regarding odors and health disturbances, suggests a suboptimal level of implementation readiness. McConnell's analysis corroborates the finding that RDF Rorotan is in a position of precarious success, which has resulted in policy failure in three areas: process, program, and politics. Indicators of early implementation failure include declining operational capacity, community resistance, and weakening policy legitimacy. The study's findings indicate that Rorotan RDF has not adequately fulfilled its designated role as a waste management solution and an energy alternative for national energy security. To optimize the potential of RDF, there is a necessity for improvements in quality standards, strengthened coordination, data transparency, and comprehensive environmental management strategies.