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FINAL REPORT [electronic resource] : Coupling Sorption to Soil Weathering During Reactive Transport Impacts of Mineral Transformation and Sorbent Aging on Contaminant Speciation and Mobility

Published
Washington, D.C. : United States. Dept. of Energy. Office of Energy Research, 2009.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
1.7 MB : digital, PDF file
Additional Creators
Pennsylvania State University, United States. Department of Energy. Office of Energy Research, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
This project aimed for a predictive-mechanistic understanding of the coupling between mineral weathering and contaminant (Cs, Sr, I) transport/fate in caustic waste-impacted sediments. Based on our prior studies of model clay mineral systems, we postulated that contaminant uptake to Hanford sediments would reflect concurrent adsorption and co-precipitation effects. Our specific objectives were: (1) to assess the molecular-scale mechanisms responsible for time-dependent sequestration of contaminants (Cs, Sr and I) during penetration of waste-induced weathering fronts; (2) to determine the rate and extent of contaminant release from the sorbed state; (3) to develop a reactive transport model based on molecular mechanisms and macroscopic flow experiments [(1) and (2)] that simulates adsorption, aging, and desorption dynamics. Progress toward achieving each of these objectives is discussed in this Final Report.
Report Numbers
E 1.99:doe/er/64191-1
doe/er/64191-1
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
10/05/2009.
"doe/er/64191-1"
Um, Wooyong; Steefel, Carl I; Mueller, Karl T; Chorover, John C; ODay, Peggy A.
Type of Report and Period Covered Note
Final; 02/01/2006 - 01/31/2009
Funding Information
FG02-06ER64191
View MARC record | catkey: 14130806