Since the beginning of the year, 275 tons of spent fuels were treated with the aim of their recycling. Both plants (UP2 800 and UP3) are at present in operation.
(1)The fission products (ultimate residues of spent fuel) are incorporated in heated glass to approximately 1100°C. The whole is poured in stainless steel containers. The fission products are an integral part of stable, compact and resistant glass. This process is called vitrification.
(2)The compacted waste corresponds to the metallic structures of spent fuels, which once compacted, allow to divide by 5 the volume of the ultimate waste.