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Title: Demonstration of Chemical Decladding and Disposition Options of Non-Al Clad Fuels at the Savannah River Site [Poster]

Abstract

The Savannah River Site’s H-Canyon processes aluminum-clad fuels from foreign and domestic research reactors to recover enriched uranium. However, there is an extensive inventory of non-Al-clad fuels currently in the storage basin, many of which are damaged or at risk of failure. Most of these are clad with stainless steel or Zircaloy, which are incompatible with H-Canyon’s process chemistry. Development of decladding methods is therefore critical to the waste cleanup mission at SRS. Here we demonstrate the dissolution of stainless steel using the SULFEX process developed at Oak Ridge and the dissolution of Zircaloy using the ZIRFLEX process developed at the Hanford Site. Dissolution and offgassing rates are consistent with previous studies and show that these cladding materials can be processed even below reflux conditions. Waste streams have been treated and quantified, providing valuable information for potential future process development in H-Canyon. This study has demonstrated that the technology may be feasible in the near term for processing smaller damaged fuels in the SRS hot cells.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)
Publication Date:
Research Org.:
Savannah River Site (SRS), Aiken, SC (United States)
Sponsoring Org.:
USDOE Office of Environmental Management (EM)
OSTI Identifier:
1476262
Report Number(s):
SRNL-STI-2018-00572
TRN: US1902627
DOE Contract Number:  
AC09-08SR22470
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES

Citation Formats

Thompson, Anthony B., Dick, DeWayne, Rudisill, Tracy, Daniel, Gene, Devore, Michael, Duff, Martine, Tovo, Laura, and Bronikowski, Michael. Demonstration of Chemical Decladding and Disposition Options of Non-Al Clad Fuels at the Savannah River Site [Poster]. United States: N. p., 2018. Web. doi:10.2172/1476262.
Thompson, Anthony B., Dick, DeWayne, Rudisill, Tracy, Daniel, Gene, Devore, Michael, Duff, Martine, Tovo, Laura, & Bronikowski, Michael. Demonstration of Chemical Decladding and Disposition Options of Non-Al Clad Fuels at the Savannah River Site [Poster]. United States. doi:10.2172/1476262.
Thompson, Anthony B., Dick, DeWayne, Rudisill, Tracy, Daniel, Gene, Devore, Michael, Duff, Martine, Tovo, Laura, and Bronikowski, Michael. Wed . "Demonstration of Chemical Decladding and Disposition Options of Non-Al Clad Fuels at the Savannah River Site [Poster]". United States. doi:10.2172/1476262. https://www.osti.gov/servlets/purl/1476262.
@article{osti_1476262,
title = {Demonstration of Chemical Decladding and Disposition Options of Non-Al Clad Fuels at the Savannah River Site [Poster]},
author = {Thompson, Anthony B. and Dick, DeWayne and Rudisill, Tracy and Daniel, Gene and Devore, Michael and Duff, Martine and Tovo, Laura and Bronikowski, Michael},
abstractNote = {The Savannah River Site’s H-Canyon processes aluminum-clad fuels from foreign and domestic research reactors to recover enriched uranium. However, there is an extensive inventory of non-Al-clad fuels currently in the storage basin, many of which are damaged or at risk of failure. Most of these are clad with stainless steel or Zircaloy, which are incompatible with H-Canyon’s process chemistry. Development of decladding methods is therefore critical to the waste cleanup mission at SRS. Here we demonstrate the dissolution of stainless steel using the SULFEX process developed at Oak Ridge and the dissolution of Zircaloy using the ZIRFLEX process developed at the Hanford Site. Dissolution and offgassing rates are consistent with previous studies and show that these cladding materials can be processed even below reflux conditions. Waste streams have been treated and quantified, providing valuable information for potential future process development in H-Canyon. This study has demonstrated that the technology may be feasible in the near term for processing smaller damaged fuels in the SRS hot cells.},
doi = {10.2172/1476262},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {10}
}

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