Selective Trapping of Volatile Fission Products with an Off-Gas Treatment System

Pyroprocessing Technology Development at Kaeri

“…Through this experiment, although the experimental batch size was small (100g-HM/batch), it was confirmed that even in a vacuum condition of less than 1 Torr, Cs was efficiently trapped by the fly ash filter, Tc by a calcium based filter and I by a silver-impregnated zeolite filer. This result showed the feasibility of selective trapping of major release nuclides such as Cs, Tc, and I [10].…”

Novel synthesis of bismuth-based adsorbents for the removal of 129I in off-gas

“…The actual trapping of iodine-containing off-gas released from the treatment of spent nuclear fuel can be realized with an off-gas treatment system: iodine containing gas is released as off-gas from the oxidation of fuel and captured in the filter media [25]. However, we used nonradioactive iodine crystals as a source of iodine gas to simplify the tests.…”