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Title: Secondary Waste Form Screening Test Results—Cast Stone and Alkali Alumino-Silicate Geopolymer

Abstract

PNNL is conducting screening tests on the candidate waste forms to provide a basis for comparison and to resolve the formulation and data needs identified in the literature review. This report documents the screening test results on the Cast Stone cementitious waste form and the Geopolymer waste form. Test results suggest that both the Cast Stone and Geopolymer appear to be viable waste forms for the solidification of the secondary liquid wastes to be treated in the ETF. The diffusivity for technetium from the Cast Stone monoliths was in the range of 1.2 × 10-11 to 2.3 × 10-13 cm2/s during the 63 days of testing. The diffusivity for technetium from the Geopolymer was in the range of 1.7 × 10-10 to 3.8 × 10-12 cm2/s through the 63 days of the test. These values compare with a target of 1 × 10-9 cm2/s or less. The Geopolymer continues to show some fabrication issues with the diffusivities ranging from 1.7 × 10-10 to 3.8 × 10-12 cm2/s for the better-performing batch to from 1.2 × 10-9 to 1.8 × 10-11 cm2/s for the poorer-performing batch. In the future more comprehensive and longer term performance testing will be conducted, to furthermore » evaluate whether or not these waste forms will meet the regulation and performance criteria needed to cost-effectively dispose of secondary wastes.« less

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
989447
Report Number(s):
PNNL-19505
830403000; TRN: US1101562
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; LIQUID WASTES; PERFORMANCE; PERFORMANCE TESTING; SOLIDIFICATION; TECHNETIUM; TESTING; WASTE FORMS; WASTES; Waste Treatment Plan Secondary Waste; EPA Methods 1313, 1315, and 1316; Low Temperature Immobilization; IDF; WTP; Integrated Disposal Facility; Technetium release; Cast Stone; Geopolymer

Citation Formats

Pierce, Eric M., Cantrell, Kirk J., Westsik, Joseph H., Parker, Kent E., Um, Wooyong, Valenta, Michelle M., and Serne, R. Jeffrey. Secondary Waste Form Screening Test Results—Cast Stone and Alkali Alumino-Silicate Geopolymer. United States: N. p., 2010. Web. doi:10.2172/989447.
Pierce, Eric M., Cantrell, Kirk J., Westsik, Joseph H., Parker, Kent E., Um, Wooyong, Valenta, Michelle M., & Serne, R. Jeffrey. Secondary Waste Form Screening Test Results—Cast Stone and Alkali Alumino-Silicate Geopolymer. United States. doi:10.2172/989447.
Pierce, Eric M., Cantrell, Kirk J., Westsik, Joseph H., Parker, Kent E., Um, Wooyong, Valenta, Michelle M., and Serne, R. Jeffrey. Mon . "Secondary Waste Form Screening Test Results—Cast Stone and Alkali Alumino-Silicate Geopolymer". United States. doi:10.2172/989447. https://www.osti.gov/servlets/purl/989447.
@article{osti_989447,
title = {Secondary Waste Form Screening Test Results—Cast Stone and Alkali Alumino-Silicate Geopolymer},
author = {Pierce, Eric M. and Cantrell, Kirk J. and Westsik, Joseph H. and Parker, Kent E. and Um, Wooyong and Valenta, Michelle M. and Serne, R. Jeffrey},
abstractNote = {PNNL is conducting screening tests on the candidate waste forms to provide a basis for comparison and to resolve the formulation and data needs identified in the literature review. This report documents the screening test results on the Cast Stone cementitious waste form and the Geopolymer waste form. Test results suggest that both the Cast Stone and Geopolymer appear to be viable waste forms for the solidification of the secondary liquid wastes to be treated in the ETF. The diffusivity for technetium from the Cast Stone monoliths was in the range of 1.2 × 10-11 to 2.3 × 10-13 cm2/s during the 63 days of testing. The diffusivity for technetium from the Geopolymer was in the range of 1.7 × 10-10 to 3.8 × 10-12 cm2/s through the 63 days of the test. These values compare with a target of 1 × 10-9 cm2/s or less. The Geopolymer continues to show some fabrication issues with the diffusivities ranging from 1.7 × 10-10 to 3.8 × 10-12 cm2/s for the better-performing batch to from 1.2 × 10-9 to 1.8 × 10-11 cm2/s for the poorer-performing batch. In the future more comprehensive and longer term performance testing will be conducted, to further evaluate whether or not these waste forms will meet the regulation and performance criteria needed to cost-effectively dispose of secondary wastes.},
doi = {10.2172/989447},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {6}
}

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