Nuclear waste glass product consistency test (PCT): Version 7.0. Revision 3

Jantzen, Carol M.; Bibler, N.E.; Beam, D.C.; Ramsey, W.G.

doi:10.2172/10176796

Cited by 9 publications

(5 citation statements)

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“…The PCT 9 , a crushed glass leach test using ASTM Type I water, was performed in quadruplicate in Cell 14 using a sample of the glass. The test, which was performed at 90°C for seven days, included the appropriate blanks and standards (Environmental Assessment (EA) glass and Approved Reference Material-1 (ARM-1)).…”

Section: Product Consistency Testmentioning

confidence: 99%

Analytical Results of DWPF Glass Sample Taken During Filling of Canister S01913

Cozzi¹

2004

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• The Defense Waste Processing Facility (DWPF) began processing Sludge Batch 2 (SB2) (Macrobatch 3) in December 2001 as part of Sludge Receipt and Adjustment Tank (SRAT) Batch 208. Macrobatch 3 consists of the contents of Tank 40 and Tank 8 in approximately equal proportions. A glass sample was obtained while pouring Canister S01913 and was sent to the Savannah River National Laboratory (SRNL) Shielded Cells for characterization. This report contains observations of the glass sample, results for the density, the chemical composition, the Product Consistency Test (PCT) and the radionuclide results needed for the Production Record for Canister S01913.

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Section: Product Consistency Testmentioning

confidence: 99%

Analytical Results of DWPF Glass Sample Taken During Filling of Canister S01913

Cozzi¹

2004

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“…It is notable that leaching tests, such as the product consistency test (PCT), developed for use in the US nuclear waste industry, specifies the particle size fraction to ensure that this problem does not arise. 13…”

Section: Resultsmentioning

confidence: 99%

Interpretation of standard leaching test BS EN 12457-2: is your sample hazardous or inert?

et al. 2007

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A slag sample from a lead refiner has been obtained and given to two analytical laboratories to determine the release of trace elements from the sample according to BS EN 12457-2. Samples analysed by one laboratory passed waste acceptance criteria, leading it to be classified as an inert material; samples of the same material analysed by the other laboratory failed waste acceptance criteria and were classified as hazardous. It was found that the sample preparation procedure is the critical step in the leaching analysis and that the effects of particle size on leachability should be taken into account when using this standard. The purpose of this paper is to open a debate on designing a better defined standard leaching test and making current waste acceptance criteria more flexible.

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“…Three homogeneous glasses from different regions of the processing range were analyzed by sodium peroxide fusion followed by Inductively Coupled Piasma -Atomic Emission Spectroscopy (ICP-AES) for chemical composition. The 7-day PCT for durability [5] were performed on these glasses to determine if the durability of the glasses changed significantly with respect to different lanthanide and/or thorium loadings.…”

Section: Methodsmentioning

confidence: 99%

Homogeneous glass processing region defined for a lanthanide borosilicate glass composition for the mobilization of plutonium using thorium as a surrogate

Meaker¹

1996

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DISCLAIMER This SummaryA ternary diagram showing the homogeneous glass processing region of a base frit, rare earth oxide and thorium oxide has been developed for a residence temperature of 1475" C. Thorium oxide was used as a plutonium surrogate. All Tho2 glasses that were processed included a 1:l mole ratio of Th to Gd. Gadolinium is added to the glass as a neutron absorber. Forty individual glass compositions were melted at 1475" C for 4 to 6 hours with periodic stirring. Two glasses (B-20-25 and B-25-25) were processed with a Tho2 loading of 25 weight percent (oxide) without amorphous phase separation or crystalline species detected by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) or Transmissicn Electron Microscopy (TEM). These were processed with 55 weight percent frit, 20 weight percent rare earth oxides and 50 percent frit, 25 percent rare earth oxides.Crystalline species that formed outside of the homogeneous glass processing region due to solubility limits or insufficient processing temperature were identified. Amorphous phase separation was detected arad examined by TEM at high Tho2 loadings (20 to 30 weight percent oxide). The base frit was able to dissolve up to 65 weight percent rare earth oxides when thorium oxide was not present.Durability testing will be performed on three glasses from three different regions of the homogeneous glass processing region. Product Consistency Test (PCT) results are pending and will be added to this document under a future revision.'

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Nuclear waste glass product consistency test (PCT): Version 7.0. Revision 3

Cited by 9 publications

References 0 publications

Analytical Results of DWPF Glass Sample Taken During Filling of Canister S01913

Analytical Results of DWPF Glass Sample Taken During Filling of Canister S01913

Interpretation of standard leaching test BS EN 12457-2: is your sample hazardous or inert?

Homogeneous glass processing region defined for a lanthanide borosilicate glass composition for the mobilization of plutonium using thorium as a surrogate

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