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DEMETERRES project: Development of innovative technologies for removing radionuclides from contaminated solid and liquid matrices

Chagvardieff P., Barré Y., Blin V., Faure S., Fornier A., Grange D., Grandjean A., Guiderdoni E., Henner P., Siroux B., Leybros A., Messalie M., Paillard H., Prévost T., Rennesson M., Sarrobert C., Vavasseur A., Very A.A.. 2017. In : Fausto Malvagi (ed.), Fadhel Malouch (ed.), Cheikh M¿Backe Diop (ed.). 13th International Conference on Radiation Shielding (ICRS-13) & 19th Topical Meeting of the Radiation Protection and Shielding Division of the American Nuclear Society (RPSD-2016). Les Ulis : EDP Sciences; Curran Associates, p. 590-598. (EPJ Web of Conferences, 153). International Conference on Radiation Shielding (ICRS 13). 13, 2016-10-03/2016-10-06, Paris (France).

DOI: 10.1051/epjconf/201715305026

As part of the " post-accidental " management, the DEMETERRES project (RSNR PIA) proposes to develop innovative and environmentally friendly methods for removal of cesium and strontium from soils and liquid matrices in order to rehabilitate them for an agricultural use while minimizing the volume of generated wastes in accordance with the nuclear waste existing processes. Complementary approaches are used: they are based on physico-chemical technologies (such as foams flotation, supercritical CO2 extraction, extractants in fluidized bed reactor ...) and biological ones (bioextractants, phytoextraction) which concepts are described. These researches aim to design innovative and performing extractants in term of selectivity and to achieve the pilot reactor phase for each of them. These pilots will group in a network to provide a technological platform lasting the project, to which will be attached an available network of experts. The respective advances of these researches are presented, completed of tests initiated in Japan on contaminated soils through partnerships.

Mots-clés : récupération des sols; extraction au fluide supercritique; Élimination des déchets

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