Laboratory Testing of Bulk Vitrified Low-Activity Waste Forms to Support the 2005 Integrated Disposal Facility Performance Assessment

Pierce, Eric M. ; McGrail, B. Peter ; Bagaasen, Larry M. ; Rodriguez, Elsa A. ; Wellman, Dawn M. ; Geiszler, Keith N. ; Baum, Steven R. ; Reed, Lunde R. ; Crum, Jarrod V. ; Schaef, Herbert T.

Pacific Northwest National Laboratory (PNNL), Richland, WA (United States), Environmental Molecular Sciences Laboratory (EMSL)

关键词: Corrosion;    Testing;    Kinetic Rate Law Parameter;    Waste Forms;    Storms;   

DOI  :  10.2172/15020690
RP-ID  :  PNNL-15126
RP-ID  :  AC05-76RL01830
RP-ID  :  15020690

美国|英语

来源: UNT Digital Library

【 摘 要 】

The purpose of this report is to document the results from laboratory testing of the bulk vitri-fied (BV) waste form that was conducted in support of the 2005 integrated disposal facility (IDF) performance assessment (PA). Laboratory testing provides a majority of the key input data re-quired to assess the long-term performance of the BV waste package with the STORM code. Test data from three principal methods, as described by McGrail et al. (2000a; 2003a), are dis-cussed in this testing report including the single-pass flow-through test (SPFT) and product con-sistency test (PCT). Each of these test methods focuses on different aspects of the glass corrosion process. See McGrail et al. (2000a; 2003a) for additional details regarding these test methods and their use in evaluating long-term glass performance. In addition to evaluating the long-term glass performance, this report discusses the results and methods used to provided a recommended best estimate of the soluble fraction of 99Tc that can be leached from the engineer-ing-scale BV waste package. These laboratory tests are part of a continuum of testing that is aimed at improving the performance of the BV waste package.