ReCosy
Redox phenomena controlling systems
Activity Code: Fission-2007-1.1.1
Coordinator: Karlsruher Institut für Technolgie (KIT)
Abstract:
Main objectives of ReCosy are the sound understanding of redox phenomena controlling the long-term release/retention of radionuclides in nuclear waste disposal and providing tools to apply the results to Performance Assessment/Safety Case. Although redox is not a new geochemical problem, different questions are still not resolved and thus raised by implementers and scientists. From a top-down approach, the reliability of redox measurements for site characterization, redox disturbances by the near-field materials, changes induced by glaciation scenarios or the redox buffer capacity of host-rocks and the kinetics of response to redox perturbations are addressed.
From a bottom-up approach, questions concerning the interpretation of mixed potentials, surface mediated reactions, redox states of actinides and long-lived fission products, the source term of spent nuclear fuel in the presence of corroding steel as well as the role of microbes and biofilms on the evolution of the redox state are tackled. Radionuclide redox transformations on minerals are decisive scenarios in the NEA FEP list and in the RETROCK project. In the large FP 6 IPs NF-PRO and FUNMIG, redox phenomena controlling the retention of radionuclides were addressed, although not systematically considered.
Project Details:
Start Date: 01.04.2008
End Date: 30.04.2011
EU Contribution: 1.46 Mio. Euro
Total Costs: 1.91 Mio. Euro
Funding Scheme: Small or medium-scale focused research project
Administrative Contact Person: Gunnar Buckau, gunnar.buckau (at) kit.edu
Project Website: http://www.recosy.eu/
Partners:
Karlsruhe Institute of Technology (KIT), Germany
Association pour la Recherche et le Développement des Méthodes et Processus Industriels, France
Bureau de Recherches Geologiques et Minieres, France
Commissariat à l'Énergie Atomique, France
Chalmers University of Technology, Sweden
CTM Centre Tecnològic, Spain
AMPHOS XXI Consulting, Spain
Forschungszentrum Dresden-Rossendorf, Germany
Gesellschaft für Anlagen- und Reaktorsicherheit mbH, Germany
University of Helsinki, Finland
Joint Research Centre – Institute for Transuranium Elements, Belgium
Nuclear Research Institute Rez plc, Czech Republic
Paul Scherrer Institut, Switzerland
Graz University of Technology, Austria
University of Potsdam, Physical Chemistry, Germany
Centre National de la Recherche Scientifique, France
University of Zaragoza, Spain
Studsvik AB, Sweden
Institute of Isotopes - Hungarian Academy of Sciences, Hungary
University of Cyprus, Cyprus
Institute of Physics, Lithuania
University of Utrecht, Netherlands
Royal Institute of Technology, Sweden
Microbial Analytics Sweden AB, Sweden
LQC S.L., Spain
Geopoint AB, Sweden
Moscow State University, Russian Federation
Svensk Kärnbränslehantering AB, Sweden
Agence national pour la gestion des déchets radioactifs, France
Posiva Oy, Finland
University of Loughborough, United Kingdom
University of Manchester, United Kingdom
