Effects of pore-scale physics on uranium geochemistry in Hanford sediments

Hu, Qinhong ; Ewing, Robert P.

关键词: pore-scale;    percolation theory;    pore connectivity;    diffusion;   

DOI  :  10.2172/1159849
RP-ID  :  GS 98657
PID  :  OSTI ID: 1159849

学科分类：化学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

Overall, this work examines a key scientific issue, mass transfer limitations at the pore-scale, using both new instruments with high spatial resolution, and new conceptual and modeling paradigms. The complementary laboratory and numerical approaches connect pore-scale physics to macroscopic measurements, providing a previously elusive scale integration. This Exploratory research project produced five peer-reviewed journal publications and eleven scientific presentations. This work provides new scientific understanding, allowing the DOE to better incorporate coupled physical and chemical processes into decision making for environmental remediation and long-term stewardship.