DEMETERRES project: development of innovative technologies for removing radionuclides from contaminated solid and liquid matrices
1 CEA DRF, 13108 St Paul lez Durance, France
2 CEA DEN, 30207 Bagnols sur Cèze, France
3 CEA DEN, 91192 Gif sur Yvette, France
4 CEA DRF, 92265 Fontenay aux Roses Cedex, France
5 VEOLIA 1 rue Giovanni Battista Pirelli, 94410 Saint Maurice, France
6 CIRAD Boulevard de la Lironde, 34398 Montpellier cedex 5, France
7 IRSN, 13108 St Paul lez Durance, France
8 AREVA 92084 Paris La Défense Cedex, France
9 INRA, 2 place Pierre Viala, 34060 Montpellier Cedex 2, France
Published online: 25 September 2017
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.
© The Authors, published by EDP Sciences, 2017
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