GEOC 46 |
| Richard Aguilar, Sandia National Laboratory, MS-0778, PO Box 5800, Albuquerque, NM 87185 and Stephen Alcorn, Integrated Science Solutions, Albuquerque, NM 5800. |
| We describe the colloid process model for the engineered barrier system of the proposed Yucca Mountain repository’s Total System Performance Assessment. Considered are (1) types and concentrations of colloids that could be generated from various waste forms and corrosion of the waste package, (2) types and concentrations of colloids produced from steel components and their potential role in radionuclide transport, and (3) types and concentrations of colloids present in natural waters in the vicinity of Yucca Mountain. Additionally, attachment/detachment characteristics of colloids anticipated in the repository environment are addressed. The model abstraction captures the most important characteristics of radionuclide-colloid behavior for predicting the potential impact of colloid-facilitated radionuclide transport on repository performance. Work was supported by the DOE Office of Repository Development as part of the CRWMS Program and performed at Sandia National Laboratories, a multi-program laboratory operated by Sandia Corporation, a Lockheed-Martin Company, for the DOE under contract ED-AC04-94AL85000.
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Colloid-Facilitated Transport of Contaminants in the Subsurface: The Life and Death of a Colloid
1:00 PM-5:20 PM, Monday, March 29, 2004 Marriott -- Marquis NW, Oral
Division of Geochemistry |