Wooyong Um, R. Jeffrey Serne
A series of batch sorption and column experiments was conducted to investigate the sorption and transport behavior of 99Tc, 129I, 79Se, and 90Sr on and through borehole sediments collected from the proposed low-level radioactive waste disposal facility at the Hanford Site (200 East Area). Batch sorption experiments were conducted using uncontaminated groundwater and simulated glass leachates spiked with individual radionuclides. The strongest sorption was observed for 90Sr, whereas 79Se showed intermediate sorption, and both 129I and 99Tc exhibited the least sorption affinities on Hanford sediment. Column experiments measuring the transport behavior of these radionuclides through sediment revealed a mobility pattern consistent with batch sorption results, indicating high mobility for 99Tc and 129I, alongside intermediate and strong retardation for 79Se and 90Sr, respectively. These contaminant sorption data, derived from sediments below the proposed disposal facility, especially those tested with simulated glass leachate, support previous findings from nearby locations and generic solutions like regional groundwater. The new data enhance the technical defensibility of prior performance assessments that did not incorporate site-specific sediments and leachates, positioning them for inclusion in future performance assessment activities aimed at refining past predictions.
@article{7528054b-ae00-48d9-bb21-af2a98260d91,
title={Sorption and transport behavior of radionuclides in the proposed low-level radioactive waste disposal facility at the Hanford site, Washington},
author={Wooyong Um and R. Jeffrey Serne},
year={2005},
language={en}
}TY - JOUR TI - Sorption and transport behavior of radionuclides in the proposed low-level radioactive waste disposal facility at the Hanford site, Washington AU - Wooyong Um AU - R. Jeffrey Serne PY - 2005 LA - en ER -
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