Ziel
THE DECOMMISSIONING OF GAS-GRAPHITE REACTORS IN THE EC (E.G. FRENCH UNGGS, BRITISH MAGNOX REACTORS AND ARGS, AND REACTORS IN SPAIN AND IN ITALY), WILL PRODUCE LARGE AMOUNTS OF GRAPHITE BRICKS.
EVALUATIONS OF THE RADIOACTIVITY INVENTORY OF GRAPHITE MODERATORS, MADE IN FRANCE AND THE UK (REF. EUR 9232), SHOW THAT THIS GRAPHITE CANNOT BE ACCEPTED WITHOUT PARTICULAR CONDITIONING BY THE EXISTING SHALLOW LAND DISPOSAL SITES.
THE AIM OF THIS STUDY IS TO EXAMINE THE BEHAVIOUR OF GRAPHITE WASTE AND TO DEVELOP A CONDITIONING TECHNIQUE WHICH MAKES THIS WASTE ACCEPTABLE FOR SHALLOW LAND DISPOSAL SITES.
B.1. DEFINITION OF THE SITE-SPECIFIC CONDITIONS TO BE TAKEN INTO ACCOUNT, IN RELATION WITH THE FRENCH WASTE DISPOSAL AGENCY (ANDRA).
B.2. STUDY AND FABRICATION OF A PARTICULAR DEVICE SUITABLE FOR MACHINING CYLINDRIC SAMPLES OF 50 OR 80 MM DIAMETER OUT OF GRAPHITE BLOCKS OF THE G2 REACTOR.
B.3. CHARACTERISATION OF THE GRAPHITE ON THE BASIS OF THREE SAMPLES (ONE BEING USED AS A REFERENCE).
B.4. STUDY OF IMPREGNATION PROCEDURES USING BITUMENS OR POLYMERS CAPABLE OF PENETRATING SEVERAL MILLIMETRES INTO THE GRAPHITE.
B.5. STUDY OF APPROPRIATE CONDITIONING PROCEDURES OF THE GRAPHITE BEFORE FINAL DISPOSAL.
B.6. STUDY OF INDUSTRIAL FEASIBILITY OF THE PROCEDURES AND EVALUATION OF COSTS.
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30205 Bagnols-sur-Cèze
Frankreich