||Use of Batch Tests as a Screening Tool for Radionuclide Sorption Characterization Studies, Hanford, Washington, U.S.A.
Puls, R. W. ;
Ames, L. L. ;
McGarrah, J. E. ;
||Robert S. Kerr Environmental Research Lab., Ada, OK. ;Battelle Pacific Northwest Labs., Richland, WA.
Radioactive isotopes ;
Ground water ;
Radioactive wastes ;
Hanford Reservation ;
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The U.S. Department of Energy was studying the feasibility of locating a high level radioactive waste repository in basalt at the Hanford site in south central Washington. This is a saturated site where ground water transport of radionuclides away from a repository is the mechanism for release to the accessible environment. Sorption is defined here as the predominant means by which the movement of radionuclides are retarded in a ground water flow system. This work presents preliminary laboratory batch testing results. An anoxic experimental approach was used with basalt flow top core samples recovered from depths of 915 m (3000 ft) below the earth surface. The kinetics of sorption were relatively slow and increased in the order U