Examination Of Sulfur Measurements In DWPF Sludge Slurry And SRAT Product Materials

Bannochie, C. J.; Wiedenman, B.

doi:10.2172/1057005

Cited by 4 publications

(4 citation statements)

References 5 publications

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“…A 2012 report examined sulfur measurements during DWPF processing of SB7b. 18 This cross-laboratory study involved SRNL, F/H Labs, and the DWPF Lab and confirmed that up to approximately 24% of the sulfur in SB7b may be insoluble. Future work was proposed to identify the insoluble sulfur species present in the two examined samples, Tank 40 SB7b Waste Acceptance Product Specifications (WAPS) sample and the DWPF SB7b Slurry Receipt & Adjustment Tank (SRAT) product #632 sample, but limitations were evident in our ability to speciate this small amount of insoluble sulfur in an already small amount of total sulfur.…”

Section: Selective Sequential Extractionsmentioning

confidence: 61%

Speciation of mercury in sludge solids: washed sludge

Bannochie

Lourie

2017

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Section: Selective Sequential Extractionsmentioning

confidence: 61%

Speciation of mercury in sludge solids: washed sludge

Bannochie

Lourie

2017

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“…A 2012 report examined sulfur measurements during DWPF processing of SB7b. 21 This cross-laboratory study involved SRNL, F/H Labs, and the DWPF Lab and confirmed that up to approximately 24% of the sulfur in SB7b may be insoluble. Future work was proposed to identify the insoluble sulfur species present in the two examined samples, Tank 40 SB7b Waste Acceptance Product Specifications (WAPS) sample and the DWPF SB7b Slurry Receipt & Adjustment Tank (SRAT) product #632 sample, but limitations were evident in our ability to speciate this small amount of insoluble sulfur in an already small amount of total sulfur.…”

Section: Examination Of Sludge Solids Following Extractions F-3 and F-4mentioning

confidence: 61%

Speciation of Mercury in Sludge Solids: Unwashed Sludge

Bannochie

2020

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“…As was shown, this non-sulfate, soluble sulfur does not appear to persist following SRAT cycle processing. 14 The Al, Cr, Hg, Na and S values also shown in this table were calculated from the ICP-AES data (except for Hg, which is from CV-AA data) for the supernate and placed on a slurry basis using the insoluble solids content from Table 3-1. Other supernate elements measured were below the ICP-AES detection limits or present at equivalent levels in the blank.…”

Section: Resultsmentioning

confidence: 99%

Tank 40 final sludge batch 9 chemical and fissile radionuclide characterization results

Bannochie

Kubilius

Pareizs

2017

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A sample of Sludge Batch (SB) 9 was pulled from Tank 40 in order to obtain radionuclide inventory analyses necessary for compliance with the Waste Acceptance Product Specifications (WAPS) i. The SB9 WAPS sample was also analyzed for chemical composition, including noble metals, and fissile constituents, and these results are reported here. These analyses along with the WAPS radionuclide analyses will help define the composition of the sludge in Tank 40 that is fed to the Defense Waste Processing Facility (DWPF) as SB9. At the Savannah River National Laboratory (SRNL), the 3-L Tank 40 SB9 sample was transferred from the shipping container into a 4-L high density polyethylene bottle and solids were allowed to settle. Supernate was then siphoned off and circulated through the shipping container to complete the transfer of the sample. Following thorough mixing of the 3-L sample, a 547 g sub-sample was removed. This sub-sample was then utilized for all subsequent slurry sample preparations. Eight separate aliquots of the slurry were digested, four with HNO 3 /HCl (aqua regia ii) in sealed Teflon ® vessels and four with NaOH/Na 2 O 2 (alkali or peroxide fusion iii) using Zr crucibles. Three Analytical Reference Glass-1 iv (ARG-1) standards were digested along with a blank for each preparation. Each aqua regia digestion and blank was diluted to 1:100 with deionized water and submitted to Analytical Development (AD) for inductively coupled plasma-atomic emission spectroscopy (ICP-AES) analysis, inductively coupled plasma-mass spectrometry (ICP-MS) analysis, atomic absorption spectroscopy (AA) for As and Se, and cold vapor atomic absorption spectroscopy (CV-AA) for Hg. Equivalent dilutions of the alkali fusion digestions and blank were submitted to AD for ICP-AES analysis. Tank 40 SB9 supernate was collected from a mixed slurry sample in the SRNL Shielded Cells and submitted to AD for ICP-AES, ion chromatography (IC), total base/free OH-/other base, total inorganic carbon/total organic carbon (TIC/TOC) analyses. Weighted dilutions of slurry were submitted for IC, TIC/TOC, and total base/free OH-/other base analyses.

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Examination Of Sulfur Measurements In DWPF Sludge Slurry And SRAT Product Materials

Cited by 4 publications

References 5 publications

Speciation of mercury in sludge solids: washed sludge

Speciation of mercury in sludge solids: washed sludge

Speciation of Mercury in Sludge Solids: Unwashed Sludge

Tank 40 final sludge batch 9 chemical and fissile radionuclide characterization results

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