The exfoliation of irradiated nuclear graphite by treatment with organic solvent: a proposal for its recycling

다국어 초록 (Multilingual Abstract)

For the past 50 years, graphite has been widely used as a moderator, reflector and fuel matrix in differentkinds of gas-cooled reactors. Resulting in approximately 250,000 metric tons of irradiated graphitewaste. One of the most significant long-lived radioisotope from graphite reactors is carbon-14 (14C) [1]with a half-life of 5730 years, this makes it a huge concern for deep geologic disposal of nucleargraphite (NG). Considering the lifecycle of NG a number of waste management options have beendeveloped, mainly focused on the achievement the radiological requirements for disposal [2]. Theexisting approaches for recycling depend on the cost to be economically viable.
In this new study, an affordable process to remove 14C has been proposed using samples taken fromthe Nuclear Power Plant in Latina (Italy) which have been used to investigate the capability of organicand inorganic solvents in removing 14C from exfoliated nuclear graphite, with the aim to design apracticable approach to obtain graphite for recycling or/and safety disposed as L& LLW.

참고문헌 (Reference)

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