Measurements of Distribution Coefficient for Sn, Pb, Th on Sand Stone and Tuff in Saline Type Groundwater

Nakazawa, Toshiyuki*; Okada, Kenichi*; Muroi, Masayuki*; Shibata, Masahiro ; Suyama, Tadahiro*; Sasamoto, Hiroshi   

We carried out the batch sorption experiments for Sn, Pb and Th in saline type groundwater to obtain the distribution coefficient (Kd) data that were lack in the JNC sorption database. As the results, the following data were obtained. Sn: in artificial sea water, Kd=1 m3/kg on sand stone, Pb: in artificial sea water, Kd=2 m3/kg on sand stone and Kd=4-10 m3/kg on tuff, Th: in artificial sea water, Kd=1-8 m3/kg on sand stone, in artificial sea water with high carbonate concentration, Kd=0 m3/kg on sand stone.