Treatment of Volatile Fission Products

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Under the auspices of the NEA Nuclear Science Committee (NSC), the Working Party on Scientific Issues of Advanced Fuel Cycles (WPFC) was established to co-ordinate scientific activities related to advanced nuclear fuel cycles, including fuel cycle scenarios, innovative fuels and materials, separation chemistry, waste disposal and coolant technologies. Various expert groups have been established to cover these topics.

The Expert Group on Fuel Recycling and Waste Technology (EGFRW) – previously known as the Expert Group on Fuel Recycling Chemistry (EGFRC) – was created in 2012 and focuses on the separation processes relevant to recycling technologies for spent nuclear fuel, including reprocessing, waste treatment, recycling and reuse of spent fuel components but excluding long-term (dry/wet) spent fuel storage technologies.

After the publication of a state-of-the-art report on the progress of separation chemistry (NEA, 2018), the expert group initiated work on the different treatment systems capable of selectively trapping volatile fission products that are released during the reprocessing of spent nuclear fuel. The study primarily focused on technologies deployed or under research and development in member countries. This report presents the results of that study.