Recycling actinides and depleted uranium as alternative for mining savings, non-proliferation and waste management
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Universidade Federal de Minas Gerais
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With the beginning of the nuclear industry, studies and debates have also been initiated regarding the possibility of a closed fuel cycle. The reprocessing of spent fuel by PUREX and the recycling of plutonium are already being implemented by France in a process referred to as a twice-through cycle. The next step involves recycling plutonium and minor actinides. With this goal, using GANEX and UREX+, in addition to PUREX, this research aims to demonstrate that reprocessing methods can significantly reduce the need for uranium mining, enhance commitments to non-proliferation, and effectively manage nuclear waste. The role of recycling in reducing waste cannot be overstated, and this research has shown that the reprocessing of spent fuels can play a significant part in this effort. Equations were solved to demonstrate the savings in uranium mining when reprocessed elements from spent fuels are spiked with depleted uranium. As a result, the depleted uranium generated in the first cycle may be sufficient to be blended with the reprocessed material, thereby diminishing the need of mining and reducing greenhouse gas (GHG) emissions. Furthermore, the reprocessing and recycling of spent fuels can significantly contribute to the decrease in the final nuclear waste disposal. The GANEX and UREX+ methods have shown that they contain a comparable amount of fissile material to PUREX. Still, they have advantages as being non-proliferating methods and reducing the toxicity of waste.
Abstract
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Reciclagem nuclear, Actinídeos, Combustível nuclear, Urânio, Não-proliferação nuclear, Resíduos radioativos
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Nonproliferation, Nuclear fuel reprocessing, Uranium mining savings, GANEX, UREX+
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https://www.even3.com.br/anais/vii-sencir-semana-nacional-de-engenharia-nuclear-e-da-energia-e-ciencias-das-radiacoes-449507/946552-recycling-actinides-and-depleted-uranium-as-alternative-for-mining-savings-non-proliferation-and-waste-managemen/