Objetivo
Gas-Cooled Reactors (GCR), RBMK and some Material Test Reactors (MTR) make use of graphite as moderator of the fuel, structures of the core and/or thermal columns. During operation, the graphite and other carbonaceous materials like carbon brick, pyrocarbon and silicon carbide coatings are contaminated by fission products and neutron activation. These irradiated carbonaceous wastes are problematic due to their content of long-lived radioisotopes (e.g. Carbon14, Chlorine 36) and due to their large volumes. About 250000 t of i-carbon are existing, worldwide. Acceptable solutions have not yet been established to handle this kind of waste. This fact also represents a significant drawback for the market introduction of graphite-moderated reactors like Very/High-Temperature Reactors (V/HTR) as a promising Generation IV system candidate. Graphite moderated reactors represent the very first generation of nuclear reactors and therefore need to be decommissioned ahead of other reactor types which evolved later. Presently, accelerated decommissioning of GCR and RBMK and subsequent disposal of i-graphite is the preferred option for not leaving this waste as a legacy for future generations. The CARBOWASTE project aims at an integrated waste management approach for this kind of radioactive wastes which are mainly characterized as Intermediate Level Waste (ILW), due to the varying content of long-lived radioisotopes. Methodologies and databases will be developed for assessing different technology options like direct disposal in adopted waste containers, treatment & purification before disposal or even recycling i-carbonaceous material for reuse in the nuclear field. The feasibility of the associated processes will be experimentally investigated to deliver data for modeling the microstructure and localization of contaminants. This is of high importance to better understand the origin of the contamination and the release mechanisms during treatment and/or disposal.
Ámbito científico
Palabras clave
Tema(s)
Convocatoria de propuestas
FP7-Fission-2007
Consulte otros proyectos de esta convocatoria
Régimen de financiación
CP - Collaborative project (generic)Coordinador
52428 Julich
Alemania
Ver en el mapa
Participantes (29)
WA16 8QZ Knutsford
Ver en el mapa
92298 Chatenay Malabry
Ver en el mapa
92400 Courbevoie
Ver en el mapa
KT10 0LU CLAYGATE, SURREY
Ver en el mapa
28040 MADRID
Ver en el mapa
75015 PARIS 15
Ver en el mapa
RH10 9AD Crawley
Ver en el mapa
75008 Paris
Ver en el mapa
75230 Paris
Ver en el mapa
00196 Roma
Ver en el mapa
28043 Madrid
Ver en el mapa
73264 AIGUEBLANCHE cedex
Ver en el mapa
02300 Vilnius
Ver en el mapa
0402 MIOVENI - ARGES
Ver en el mapa
75794 Paris
Ver en el mapa
1049 Bruxelles / Brussel
Ver en el mapa
LT-44403 Kaunas
Ver en el mapa
WA3 6AE Warrington
Ver en el mapa
CA24 3HU MOOR ROW
Ver en el mapa
1755 LE Petten
Ver en el mapa
1160 Bruxelles / Brussel
Ver en el mapa
86405 Meitingen
Ver en el mapa
61182 NYKOEPING
Ver en el mapa
75272 Paris
Ver en el mapa
M13 9PL Manchester
Ver en el mapa
0046 CENTURION
Ver en el mapa
0001 Pretoria
Ver en el mapa
38800 Grenoble
Ver en el mapa
00185 Roma
Ver en el mapa