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

Title: Tank 41H Post-Dissolution Saltcake Core and Supernate SampleAnalysis

Abstract

This report provides analyses of the samples from Tank 41H. The characterization also includes supernate samples pulled from the surface (347 inch) and 250 inch levels of the salt supernate. The three saltcake samples (HTF-E-03-145, 146, and 147) were filled to nearly their capacity with saltcake and free liquid, with an average saltcake bulk density of 2.06 g/cm3. The undrained saltcake from the bottom of the middle sample (HTF-E-03-146) had a water content of 4.1 percentage weight, a 137Cs activity of 0.14 Ci per gallon of saltcake, and an alpha content of 1.4E+4 pCi/g. The undrained saltcake from the bottom of the bottom sample (HTF-E-03-147) had a water content of 8.5 percentage weight, a 137Cs activity of 0.17 Ci per gallon of saltcake, and an alpha content of 3.0E+4 pCi/g. Interstitial liquid drained from the middle sample (HTF-E-03-146) had a density of 1.43 g/cm3, a soluble solids content of 45.4 percentage weight, a 137Cs activity of 0.78 Ci per gallon of interstitial liquid, a nd an alpha content of 1.1E+4 pCi/mL. An analysis of material from the top of the top sample (HTF-E-03-145) is provided in support of Nuclear Criticality Safety Evaluations. The as-received saltcake and the residual insoluble solidsmore » had a uranium-235 enrichment of approximately 12.2 per cent. Characterization focused on providing information on fissile radionuclides, potential neutron poisons, and other potential diluents. Supernate samples pulled from the surface and from the 250 in. levels of the C1 and C3 risers yielded information on the vertical and lateral tank supernate homogeneity. The 137Cs content of these Tank 41H samples averaged 0.56 Ci/gal for the C3 riser and 0.65 Ci/gal for the C1 riser. The 238Pu content of the four unfiltered samples ranged from 1.41E+4 pCi/mL to 2.21E+4 pCi/mL. Scanning electron microscopy of saltcake from sample HTF-E-03-146 revealed several features consistent with mineral dissolution: sub-rounded appearance of grains, lack of coatings by secondary precipitates, and crevices and indentations in some grains.« less

Authors:
Publication Date:
Research Org.:
Savannah River Site (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
825802
Report Number(s):
WSRC-TR-2004-00165-Rev0
TRN: US0402706
DOE Contract Number:  
AC09-96SR18500
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 7 Jul 2004
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BULK DENSITY; CAPACITY; COATINGS; CRITICALITY; DISSOLUTION; INTERSTITIALS; NEUTRONS; RADIOISOTOPES; SAFETY; SCANNING ELECTRON MICROSCOPY; SOLVENTS; TANKS; URANIUM 235

Citation Formats

MARTINO, CHRISTOPHERJ. Tank 41H Post-Dissolution Saltcake Core and Supernate SampleAnalysis. United States: N. p., 2004. Web. doi:10.2172/825802.
MARTINO, CHRISTOPHERJ. Tank 41H Post-Dissolution Saltcake Core and Supernate SampleAnalysis. United States. doi:10.2172/825802.
MARTINO, CHRISTOPHERJ. Wed . "Tank 41H Post-Dissolution Saltcake Core and Supernate SampleAnalysis". United States. doi:10.2172/825802. https://www.osti.gov/servlets/purl/825802.
@article{osti_825802,
title = {Tank 41H Post-Dissolution Saltcake Core and Supernate SampleAnalysis},
author = {MARTINO, CHRISTOPHERJ},
abstractNote = {This report provides analyses of the samples from Tank 41H. The characterization also includes supernate samples pulled from the surface (347 inch) and 250 inch levels of the salt supernate. The three saltcake samples (HTF-E-03-145, 146, and 147) were filled to nearly their capacity with saltcake and free liquid, with an average saltcake bulk density of 2.06 g/cm3. The undrained saltcake from the bottom of the middle sample (HTF-E-03-146) had a water content of 4.1 percentage weight, a 137Cs activity of 0.14 Ci per gallon of saltcake, and an alpha content of 1.4E+4 pCi/g. The undrained saltcake from the bottom of the bottom sample (HTF-E-03-147) had a water content of 8.5 percentage weight, a 137Cs activity of 0.17 Ci per gallon of saltcake, and an alpha content of 3.0E+4 pCi/g. Interstitial liquid drained from the middle sample (HTF-E-03-146) had a density of 1.43 g/cm3, a soluble solids content of 45.4 percentage weight, a 137Cs activity of 0.78 Ci per gallon of interstitial liquid, a nd an alpha content of 1.1E+4 pCi/mL. An analysis of material from the top of the top sample (HTF-E-03-145) is provided in support of Nuclear Criticality Safety Evaluations. The as-received saltcake and the residual insoluble solids had a uranium-235 enrichment of approximately 12.2 per cent. Characterization focused on providing information on fissile radionuclides, potential neutron poisons, and other potential diluents. Supernate samples pulled from the surface and from the 250 in. levels of the C1 and C3 risers yielded information on the vertical and lateral tank supernate homogeneity. The 137Cs content of these Tank 41H samples averaged 0.56 Ci/gal for the C3 riser and 0.65 Ci/gal for the C1 riser. The 238Pu content of the four unfiltered samples ranged from 1.41E+4 pCi/mL to 2.21E+4 pCi/mL. Scanning electron microscopy of saltcake from sample HTF-E-03-146 revealed several features consistent with mineral dissolution: sub-rounded appearance of grains, lack of coatings by secondary precipitates, and crevices and indentations in some grains.},
doi = {10.2172/825802},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {7}
}

Technical Report:

Save / Share: