Consideration for long-term storage of a spent zeolite adsorption vessel, 16; Numerical simulation of inner used zeolite vessel including permeation model of remained contaminated water

Uruga, Kazuyoshi*; Tsukada, Takeshi*; Yamagishi, Isao ; Terada, Atsuhiko  

The inside of the zeolite adsorption tower used for the treatment of contaminated water at the Fukushima Daiichi Nuclear Power Station is predicted during storage. As a result of constructing a model based on the test results and performing numerical analysis on the evaporation/condensation of the residual water inside and the permeation into the zeolite, it showed that the salt contained in the residual water was concentrated in the center of the adsorption vessel. Then, the salinity in the residual water decreased.