Transport properties of sorbing contaminants in a fractured granite under oxidizing conditions

다국어 초록 (Multilingual Abstract)

to understand the transport behavior of contaminants at underground environments. For the tracers, tritium and anionswere used as nonsorbing ones and some sorbing cations such as Sr, Co and Cs were used as well. The experimentalstudy was focused on the identification of the retardation and matrix diffusion of the tracer in the fracture. The hydraulicconductivity in the fracture was determined from the pressure diferentials between pairs of boreholes. The hydraulicdata were used with a variable aperture channel model to characterize the aperture distribution in the fracture. A transportmodel has been developed to describe the migration of the solutes in the flow field by using a particle tracking method.have been explored with the transport model which takes into account sorption and diffusion into the rock matrix. Thiscomparison may contribute to further understanding on the heterogeneous flow field and the interactions betwen rockand chemical species.

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