Krypton is released during spent fuel reprocessing as an gas effluent in La Hague plant. With his isotope 85, it's the main radiologic contributor of gas waste. So, krypton separation and trapping can reduce environmental effect of reprocessing, develop nuclear public acceptance, and cut production cost.

The objective of the post-doctoral contract is to research and test porous materials to separate and/or to trapp krypton in gas waste of La Hague plant, in order to propose a complete gas treatment flowsheet which can be implemented industrially.