Radiolysis studies on H retention with changing hydrophilicity of carbonate slurry, 3; Gamma radiolysis estimation of H (gas) retention properties

Ito, Tatsuya; Nagaishi, Ryuji; Kuwano, Ryo*

no journal, , 

Hydrogen molecule (H) formed as a dissolved species by radiolysis of pore water in the slurry and then turned into a gas is retained by the slurry, and the H retained amount would be dependent on the viscosity and height of slurry. The hydrophilicity (water absorption)-lowering of carbonate slurry waste emitted from the 1F ALPS co-precipitation system has been considered, and in order to estimate the effectiveness of lowering from the viewpoint of the repression of H retention, it is important to clarify what and how the H retention property would be changed by this lowering. In this report as the third in a series of presentations, the sample-height dependence of H generation yield (G-value) released outside the slurry was measured in the gamma radiolysis experiments, and the H retention property was estimated for the current and hydrophilicity-lowered slurries to be compared with each other.