Consideration on modeling of Nb sorption onto clay minerals in the presence of Ca

Tetsuji Yamaguchi

Presentation information

Oral presentation

V. Nuclear Fuel Cycle and Nuclear Materials » 505-2 Waste Disposal and Its Environmental Aspects

[1C16-19] Nuclide Migration 2

Wed. Sep 11, 2019 4:55 PM - 6:00 PM Room C (Common Education Bildg. 1F C13)

Chair:Shingo Tanaka(Hokkaido Univ.)

4:55 PM - 5:10 PM

[1C16] Consideration on modeling of Nb sorption onto clay minerals in the presence of Ca

Tetsuji Yamaguchi¹, Ko Henmi¹, Logan Barr¹, Asako Shimada¹, *Saki Ohira¹, Yoshihisa Iida¹ (1. JAEA)

Keywords:Nb, Ca, illite, sorption modeling, solubility

We developed a sorption model taking into account the surface species of Ca-Nb-OH, and reanalyzed the data of Ervanne et al. (2014) for illite. As a result, we were able to reproduce the high sorption distribution coefficient of Nb to illite in the presence of Ca.