Characterization of U(VI) Sorption-Desorption Processes and Model Upscaling

Zachara, John M. ; Brown, Gordon, E. ; Lichtner, Peter C. ; Ball, William

Pacific Northwest National Laboratory (U.S.)

关键词: Desorption;    Uranium;    Sediments;    37 Inorganic, Organic, Physical And Analytical Chemistry;    Geochemistry;   

DOI  :  10.2172/839157
RP-ID  :  EMSP-86748--2004
RP-ID  :  FG07-02ER63498
RP-ID  :  839157

美国|英语

来源: UNT Digital Library

【 摘 要 】

The objectives of the overall collaborative EMSP effort (with which this project is associated) are to characterize sorption and desorption processes of U(VI) on pristine and contaminated Hanford sediments over a range of sediment facies and materials properties and to relate such characterization both to fundamental molecular-scale understanding and fieldscale models of geochemistry and mass transfer. The research is intended to provide new insights on the mechanisms of U(VI) retardation at Hanford, and to allow the development of approaches by which laboratory-developed geochemical models can be upscaled for defensible field-scale predictions of uranium transport in the environment.