[3H11-15] Reprocessing technology

[3H14] Development of spent salt treatment technology using zeolite

(7)Zeolite column experiments using simulating spent salt containing various kinds of FP elements

*Koichi Uozumi¹, Kazuto Takayama², Kenta Inagaki¹ (1. CRIEPI, 2. UTokyo)

Keywords: Pyroprocessing, Spent salt treatment, Zeolite column, Cesium, Strontium, Cerium, FP transfer model, Rate constant

Zeolite column tests were conducted using simulating spent salt containing various kinds of FP elements, i.e., cesium, strontium, and cerium, or cesium and strontium. Zeolite samples taken from the columns after the experiments showed some of the FP elements in the salt were absorbed by the columns. Furthermore, comparison between the experimental result and calculation result based on a mass transfer model and rate constants obtained by zeolite immersion tests in LiCl-KCl-CeCl₃ melt was conducted for cerium.