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Development of safe actinide separation processes in EuropeThe SACSESS project

Abstract : Nuclear power plays a key role in limiting EU's greenhouse gases emissions, and makes an important contribution to improve European Union's independence, security and diversity of energy supply. However, its social acceptance is closely linked to an enhanced safety in the management of long-lived radioactive waste. Among the different strategies, partitioning and transmutation (PetT) allows a reduction of the amount, the radiotoxicity and the thermal power of these wastes, leading to an optimal use of geological repository sites.In the continuation of the FP7 ACSEPT Project, the SACSESS collaborative project provides a structured framework to improve existing fuel cycles by addressing the safety issues of the actinide separation processes selected within ACSEPT. These processes involve new chemical systems. To be developed further, these processes require now a comprehensive study of the multiform safety issues that any chemical process requires under operation conditions or maloperation. With the help of TSOs and with feedback from safety analyses, methodologies have been developed and are now applied to these processes in order to identify safety issues and then to optimise these processes. In addition, all the results will be integrated to optimise the flowsheets, to perform system studies and will ensure the link with other projects and initiatives to ensure the relevance of the SACSESS research program.The multidisciplinary consortium composed of European universities, nuclear research bodies, TSOs will generate fundamental safety improvements on the future design of an Advanced Processing Unit. SACSESS is thus an essential contribution to the demonstration of the potential benefits of actinide partitioning to the global safety of the long-lived waste management.After a presentation of the context and of the main incentives for developing the recycling of spent nuclear fuel, this paper presents the strategy developed in SACSESS and the main results obtained.
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Submitted on : Monday, February 24, 2020 - 2:56:48 PM
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  • HAL Id : cea-02489561, version 1

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A. Geist, P. Soucek, C. Rhodes, S. Bourg. Development of safe actinide separation processes in EuropeThe SACSESS project. Actinide Separations Conference, May 2015, Salt Lake City, United States. ⟨cea-02489561⟩

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