I wonder, couldn’t it be possible to extract the tritium for use in other applications? I know, 300 tons is a lot of material to process—but it seems to me that a resource is being thrown away here.
What other applications? It is an isotope used in some night sights for firearms, and for a while it was a hydrogen bomb component candidate, but the relatively short half life (abt 12 years) makes it kind of useless for that too. Tritium is about as useful as the garbage in a landfill.