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Title: Data Package for Secondary Waste Form Down-Selection—Cast Stone

Abstract

Available literature on Cast Stone and Saltstone was reviewed with an emphasis on determining how Cast Stone and related grout waste forms performed in relationship to various criteria that will be used to decide whether a specific type of waste form meets acceptance criteria for disposal in the Integrated Disposal Facility (IDF) at Hanford. After the critical review of the Cast Stone/Saltstone literature, we conclude that Cast Stone is a good candidate waste form for further consideration. Cast stone meets the target IDF acceptance criteria for compressive strength, no free liquids, TCLP leachate are below the UTS permissible concentrations and leach rates for Na and Tc-99 are suiteably low. The cost of starting ingredients and equipment necessary to generate Cast Stone waste forms with secondary waste streams are low and the Cast Stone dry blend formulation can be tailored to accommodate variations in liquid waste stream compositions. The database for Cast Stone short-term performance is quite extensive compared to the other three candidate waste solidification processes. The solidification of liquid wastes in Cast Stone is a mature process in comparison to the other three candidates. Successful production of Cast Stone or Saltstone has been demonstrated from lab-scale monoliths with volumesmore » of cm3 through m3 sized blocks to 210-liter sized drums all the way to the large pours into vaults at Savannah River. To date over 9 million gallons of low activity liquid waste has been solidified and disposed in concrete vaults at Savannah River.« less

Authors:
;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1027190
Report Number(s):
PNNL-20706
830403000; TRN: US1105693
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; CONCRETES; GROUTING; LEACHATES; LIQUID WASTES; PERFORMANCE; PRODUCTION; SAVANNAH RIVER PLANT; SOLIDIFICATION; TARGETS; WASTE FORMS; WASTES; Cast Stone; secondary waste; waste form leaching; Tc-99; IDF acceptance criteria

Citation Formats

Serne, R. Jeffrey, and Westsik, Joseph H. Data Package for Secondary Waste Form Down-Selection—Cast Stone. United States: N. p., 2011. Web. doi:10.2172/1027190.
Serne, R. Jeffrey, & Westsik, Joseph H. Data Package for Secondary Waste Form Down-Selection—Cast Stone. United States. doi:10.2172/1027190.
Serne, R. Jeffrey, and Westsik, Joseph H. Mon . "Data Package for Secondary Waste Form Down-Selection—Cast Stone". United States. doi:10.2172/1027190. https://www.osti.gov/servlets/purl/1027190.
@article{osti_1027190,
title = {Data Package for Secondary Waste Form Down-Selection—Cast Stone},
author = {Serne, R. Jeffrey and Westsik, Joseph H.},
abstractNote = {Available literature on Cast Stone and Saltstone was reviewed with an emphasis on determining how Cast Stone and related grout waste forms performed in relationship to various criteria that will be used to decide whether a specific type of waste form meets acceptance criteria for disposal in the Integrated Disposal Facility (IDF) at Hanford. After the critical review of the Cast Stone/Saltstone literature, we conclude that Cast Stone is a good candidate waste form for further consideration. Cast stone meets the target IDF acceptance criteria for compressive strength, no free liquids, TCLP leachate are below the UTS permissible concentrations and leach rates for Na and Tc-99 are suiteably low. The cost of starting ingredients and equipment necessary to generate Cast Stone waste forms with secondary waste streams are low and the Cast Stone dry blend formulation can be tailored to accommodate variations in liquid waste stream compositions. The database for Cast Stone short-term performance is quite extensive compared to the other three candidate waste solidification processes. The solidification of liquid wastes in Cast Stone is a mature process in comparison to the other three candidates. Successful production of Cast Stone or Saltstone has been demonstrated from lab-scale monoliths with volumes of cm3 through m3 sized blocks to 210-liter sized drums all the way to the large pours into vaults at Savannah River. To date over 9 million gallons of low activity liquid waste has been solidified and disposed in concrete vaults at Savannah River.},
doi = {10.2172/1027190},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {9}
}

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