Cel
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.
Dziedzina nauki
Słowa kluczowe
Temat(-y)
Zaproszenie do składania wniosków
FP7-Fission-2007
Zobacz inne projekty w ramach tego zaproszenia
System finansowania
CP - Collaborative project (generic)Koordynator
52428 Julich
Niemcy
Zobacz na mapie
Uczestnicy (29)
WA16 8QZ Knutsford
Zobacz na mapie
92298 Chatenay Malabry
Zobacz na mapie
92400 Courbevoie
Zobacz na mapie
KT10 0LU CLAYGATE, SURREY
Zobacz na mapie
28040 MADRID
Zobacz na mapie
75015 PARIS 15
Zobacz na mapie
RH10 9AD Crawley
Zobacz na mapie
75008 Paris
Zobacz na mapie
75230 Paris
Zobacz na mapie
00196 Roma
Zobacz na mapie
28043 Madrid
Zobacz na mapie
73264 AIGUEBLANCHE cedex
Zobacz na mapie
02300 Vilnius
Zobacz na mapie
0402 MIOVENI - ARGES
Zobacz na mapie
75794 Paris
Zobacz na mapie
1049 Bruxelles / Brussel
Zobacz na mapie
LT-44403 Kaunas
Zobacz na mapie
WA3 6AE Warrington
Zobacz na mapie
CA24 3HU MOOR ROW
Zobacz na mapie
1755 LE Petten
Zobacz na mapie
1160 Bruxelles / Brussel
Zobacz na mapie
86405 Meitingen
Zobacz na mapie
61182 NYKOEPING
Zobacz na mapie
75272 Paris
Zobacz na mapie
M13 9PL Manchester
Zobacz na mapie
0046 CENTURION
Zobacz na mapie
0001 Pretoria
Zobacz na mapie
38800 Grenoble
Zobacz na mapie
00185 Roma
Zobacz na mapie