新鮮な花崗岩および破砕花崗岩中におけるセシウムの移行

概要

論文の詳細を見る
Sorption of radionuclides on fractured rocks are of importance to understand the migration behavior in crystalline rocks such as granite, in which fractured zones are likely to be major migration paths. In the present study, sorption of cesium on fractured granite was measured by batch and column sorption experiments, and com-pared with that on fresh granite. The distribution coefficients for fractured granite, obtained by the batch sorption experiments, were one to two orders in magnitude larger than those for fresh granite. The larger sorption in fractured zones implies that migration of elements in fractured zones could not be as significant as that expected by the higher groundwater velocity. The cesium migration through fresh granite-packed columns could be described by one-dimensional advection-dispersion equation, in which sorption equilibrium was attained.
一般社団法人日本応用地質学会の論文
1991-06-10