6. Conclusion

Systematic recycling of uranium and plutonium in 4th generation fast breeder reactors, following on from current MOX recycling in French water-cooled reactors, enables [BN 3 561] :

• use and recover all existing plutonium ;

• to pursue, over the long term, the closed-cycle strategy enabling the production of final waste containing virtually no plutonium. Indeed, this radioelement is the one that would place the greatest constraints on deep geological disposal, particularly beyond the first 500...