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Title: New Silicotitanate Waste Forms; Development and Characterization

Abstract

The objective of this program is to identify new waste forms and disposal strategies specific to crystalline silicotitanate (CST) secondary waste that is generated from cesium and strontium ion exchange processes. Waste forms that are developed in this work will offer an alternative to current disposal plans. The goals of the program are to reduce the costs associated with CST waste disposal, minimize the risk of contamination to the environment during CST processing, and provide DOE with technical alternatives for CST disposal. The technical objectives of the proposed work are to (1) fully characterize the phase relationships, structures, and thermodynamic and kinetic stabilities of crystalline silicotitanate waste forms and (2) establish a sound technical basis for understanding key waste form properties, such as melting temperatures and aqueous durability, based on an in-depth understanding of waste form structures and thermochemistry.

Authors:
; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab., Richland, WA; Sandia National Labs., Albuquerque, NM; University of California-Davis, Davis, CA (US)
Sponsoring Org.:
USDOE Office of Environmental Management (EM) (US)
OSTI Identifier:
829961
Report Number(s):
EMSP-60345-2000
R&D Project: EMSP 60345; TRN: US0404819
DOE Contract Number:  
FG07-97ER45674
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 1 Jun 2000
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 54 ENVIRONMENTAL SCIENCES; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CESIUM; CONTAMINATION; KINETICS; MELTING; PROCESSING; STRONTIUM IONS; THERMODYNAMICS; WASTE DISPOSAL; WASTE FORMS; WASTES

Citation Formats

Balmer, Mari Lou, Nenoff, Tina, Navrotsky, Alexandra, and Su, Yali. New Silicotitanate Waste Forms; Development and Characterization. United States: N. p., 2000. Web. doi:10.2172/829961.
Balmer, Mari Lou, Nenoff, Tina, Navrotsky, Alexandra, & Su, Yali. New Silicotitanate Waste Forms; Development and Characterization. United States. doi:10.2172/829961.
Balmer, Mari Lou, Nenoff, Tina, Navrotsky, Alexandra, and Su, Yali. Thu . "New Silicotitanate Waste Forms; Development and Characterization". United States. doi:10.2172/829961. https://www.osti.gov/servlets/purl/829961.
@article{osti_829961,
title = {New Silicotitanate Waste Forms; Development and Characterization},
author = {Balmer, Mari Lou and Nenoff, Tina and Navrotsky, Alexandra and Su, Yali},
abstractNote = {The objective of this program is to identify new waste forms and disposal strategies specific to crystalline silicotitanate (CST) secondary waste that is generated from cesium and strontium ion exchange processes. Waste forms that are developed in this work will offer an alternative to current disposal plans. The goals of the program are to reduce the costs associated with CST waste disposal, minimize the risk of contamination to the environment during CST processing, and provide DOE with technical alternatives for CST disposal. The technical objectives of the proposed work are to (1) fully characterize the phase relationships, structures, and thermodynamic and kinetic stabilities of crystalline silicotitanate waste forms and (2) establish a sound technical basis for understanding key waste form properties, such as melting temperatures and aqueous durability, based on an in-depth understanding of waste form structures and thermochemistry.},
doi = {10.2172/829961},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {6}
}

Technical Report:

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