skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Waste Form Release Data Package for the 2005 Integrated Disposal Facility Performance Assessment. Erratum

Abstract

Please insert erratum page in report PNNL-14805. This erratum serves to correct the K g (Glass apparent equilibrium constant based on the SiO 2 (aq) activity) values affected by a calculation error for glasses LAWA44, LAWB45 and LAWC22. The error was first identified by Papathanassiu et al. (2011). The K g values were corrected by Freedman et al. (2015) by multiplying the erroneous K g values by approx. 3.4. As indicated in Freedman et al. (2015), this 3.4 factor originates from the erroneous use of the molecular weight of H 4SiO 4 (96.114 g·mol –1) instead of the molecular weight for Si (28.086 g·mol –1).

Authors:
 [1]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1326161
Report Number(s):
PNNL-14805-Erratum
830403000; TRN: US1700022
DOE Contract Number:
AC05-76RL01830
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; CORRECTIONS; WASTE FORMS; SILICON OXIDES; DATA; GLASS; SILICA; ERRORS; PERFORMANCE; EQUILIBRIUM; EVALUATION; RADIOACTIVE WASTE FACILITIES

Citation Formats

Smith, Gary L. Waste Form Release Data Package for the 2005 Integrated Disposal Facility Performance Assessment. Erratum. United States: N. p., 2016. Web. doi:10.2172/1326161.
Smith, Gary L. Waste Form Release Data Package for the 2005 Integrated Disposal Facility Performance Assessment. Erratum. United States. doi:10.2172/1326161.
Smith, Gary L. 2016. "Waste Form Release Data Package for the 2005 Integrated Disposal Facility Performance Assessment. Erratum". United States. doi:10.2172/1326161. https://www.osti.gov/servlets/purl/1326161.
@article{osti_1326161,
title = {Waste Form Release Data Package for the 2005 Integrated Disposal Facility Performance Assessment. Erratum},
author = {Smith, Gary L.},
abstractNote = {Please insert erratum page in report PNNL-14805. This erratum serves to correct the Kg (Glass apparent equilibrium constant based on the SiO2(aq) activity) values affected by a calculation error for glasses LAWA44, LAWB45 and LAWC22. The error was first identified by Papathanassiu et al. (2011). The Kg values were corrected by Freedman et al. (2015) by multiplying the erroneous Kg values by approx. 3.4. As indicated in Freedman et al. (2015), this 3.4 factor originates from the erroneous use of the molecular weight of H4SiO4 (96.114 g·mol–1) instead of the molecular weight for Si (28.086 g·mol–1).},
doi = {10.2172/1326161},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month = 9
}

Technical Report:

Save / Share:
  • This report refers to or contains K g values for glasses LAWA44, LAWB45 and LAWC22 affected by calculations errors as identified by Papathanassiu et al. (2011). The corrected K g values are reported in an erratum included in the revised version of the original report. The revised report can be referenced as follows: Pierce E. M. et al. (2004) Waste Form Release Data Package for the 2005 Integrated Disposal Facility Performance Assessment. PNNL-14805 Rev. 0 Erratum. Pacific Northwest National Laboratory, Richland, WA, USA.
  • This data package documents the experimentally derived input data on the representative waste glasses; LAWA44, LAWB45, and LAWC22. This data will be used for Subsurface Transport Over Reactive Multi-phases (STORM) simulations of the Integrated Disposal Facility (IDF) for immobilized low-activity waste (ILAW). The STORM code will be used to provide the near-field radionuclide release source term for a performance assessment to be issued in July 2005. Documented in this data package are data related to 1) kinetic rate law parameters for glass dissolution, 2) alkali (Na+)-hydrogen (H+) ion exchange rate, 3) chemical reaction network of secondary phases that form inmore » accelerated weathering tests, and 4) thermodynamic equilibrium constants assigned to these secondary phases. The kinetic rate law and Na+-H+ ion exchange rate were determined from single-pass flow-through experiments. Pressurized unsaturated flow (PUF) and product consistency (PCT) tests where used for accelerated weathering or aging of the glasses in order to determine a chemical reaction network of secondary phases that form. The majority of the thermodynamic data used in this data package were extracted from the thermody-namic database package shipped with the geochemical code EQ3/6, version 8.0. Because of the expected importance of 129I release from secondary waste streams being sent to IDF from various thermal treatment processes, parameter estimates for diffusional release and solubility-controlled release from cementitious waste forms were estimated from the available literature.« less
  • This report refers to or contains K g values for glasses LAWA44, LAWB45 and LAWC22 affected by calculations errors as identified by Papathanassiu et al. (2011). The corrected K g values are reported in an erratum included in the revised version of the original report. The revised report can be referenced as follows: Pierce E. M. et al. (2004) Waste Form Release Data Package for the 2005 Integrated Disposal Facility Performance Assessment. PNNL-14805 Rev. 0 Erratum. Pacific Northwest National Laboratory, Richland, WA, USA.
  • A set of reactive chemical transport calculations was conducted with the Subsurface Transport Over Reactive Multiphases (STORM) code to evaluate the long-term performance of a representative low-activity waste glass in a shallow subsurface disposal system located on the Hanford Site. Two-dimensional simulations were run until the waste form release rates reached a quasi-stationary-state, usually after 2,000 to 4,000 yr. The primary difference between the waste form release simulations for the 2001 ILAW PA, and the simulations described herein, is the number of different materials considered. Whereas the previous PA considered only LAWABP1 glass, the current PA also describes radionuclide releasemore » from three different WTP glasses (LAWA44, LAWB45 and LAWC22), two different bulk vitrification glasses (6-tank composite and S-109), and three different grout waste forms (containing Silver Iodide, Barium Iodide and Barium Iodate). All WTP and bulk vitrification glasses perform well. However, the radionuclide release from the salt in the cast refractory surrounding the bulk vitrification waste packages is 2 to 170 times higher than the glass release rate, depending on the water recharge rate. Iodine-129 release from grouted waste forms is highly sensitive to the solubility of the iodine compound contained in the grout. The normalized iodine release rate from grout containing barium iodate is a factor of 10 higher than what the normalized release rate would be if the iodine were contained in LAWA44 glass.« less
  • This data package is a compilation of existing geologic data from the Integrated Disposal Facility Site for use in the 2005 Performance Assessment. The data were compiled from both surface and subsurface geologic sources. The surface mapping has been published previously. The quality and uncertainty of the data are discussed. The 2004 report was modified to include results of studies of the shearwave velocity of sediments at and near the IDF site, which were performed for the Waste Treatment Plant and groundwater monitoring wells 299-E17-26 and 299-E24-24. The conclusions of the original report have not changed with the new data.