Hanford Immobilized LAW Product Acceptance: Tanks Focus Area Testing Data Package II

Schulz, R. L.; Lorier, Troy H.; Peeler, David K.; Brown, Kevin G.; Reamer, Irene A.; Vienna, John D.; Jiricka, Antonin; Jorgensen, Benaiah M.; Smith, Donald E.

doi:10.2172/15001113

Cited by 2 publications

(6 citation statements)

References 20 publications

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“…Corrosion rates reported by Shulz et al [40] as a function of temperature for HLP-31, LAWABP1, and LAWA44 glasses are provided in Table 5. Note that these results represent the current status of testing and some rates may change as new data become available.…”

Section: Resultsmentioning

confidence: 99%

“…Note that these results represent the current status of testing and some rates may change as new data become available. Shulz et al [40] also report on the alteration phases formed on these glasses and these are provided in A matrix of 56 glasses was developed and tested with the aim to identify the impact of glass composition on long-term corrosion behavior and to develop an acceptable glass composition region [40]. Of the 56 glasses, 45 were designed to systematically vary the glass composition and 11 were selected because a large and growing database on their corrosion characteristics had accumulated.…”

Section: Resultsmentioning

confidence: 99%

“…The test matrix was designed in collaboration with staff at the Catholic University of America (principal contractor responsible for ILAW waste form development) to ensure that the selected components and ranges were relevant to glasses that are under current development. For details on the specific glass compositions involved and complete test results, please see Shulz et al [40]. We only provide a very brief overview of the results here.…”

Section: Resultsmentioning

confidence: 99%

“…LAWA23, LAWA33, LAWABP1, and HLP-10 are prototypic of ILAW glasses that were under development by BNFL, Inc. for the U.S. ZnO, ZrO 2 , MgO, and Na 2 O across a wide composition range that covers, with high probability, the expected processing composition range for candidate ILAW glasses. For details on the specific glass compositions involved, please see reference [5].…”

Section: Glass Formulationsmentioning

confidence: 99%

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Waste Form Release Data Package for the 2001 Immobilized Low-Activity Waste Performance Assessment

McGrail¹,

Icenhower²,

Martin³

et al. 2001

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SUMMARYThis data package documents the experimentally derived input data on the representative waste glasses LAWABP1 and HLP-31 that will be used for simulations of the immobilized lowactivity waste disposal system with the Subsurface Transport Over R eactive Multiphases (STORM) code. The STORM code will be used to provide the near-field radionuclide release source term for a performance assessment to be issued in March of 2001. Documented in this data package are data related to 1) kinetic rate law parameters for glass dissolution, 2) alkali-H ion exchange rate, 3) chemical reaction network of secondary phases that form in accelerated weathering tests, and 4) thermodynamic equilibrium constants assigned to these secondary phases. The kinetic rate law and Na + -H + ion exchange rate were determined from single-pass flow-through experiments. Pressurized unsaturated flow and vapor hydration experiments were used for accelerated weathering or aging of the glasses. The majority of the thermodynamic data were extracted from the thermodynamic database package shipped with the geochemical code EQ3/6. However, several secondary reaction products identified from laboratory tests with prototypical LAW glasses were not included in this database, nor are the thermo dynamic data available in the open literature. One of these phases, herschelite, was determined to have a potentially significant impact on the release calculations and so a solubility product was estimated using a polymer structure model developed for zeolites.Although this data package is relatively complete, final selection of ILAW glass compositions has not been done by the waste treatment plant contractor. Consequently, revisions to this data package to address new ILAW glass formulations are to be regularly expected.v CONTENTS

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Glass Formulationsmentioning

confidence: 99%

See 2 more Smart Citations

Waste Form Release Data Package for the 2001 Immobilized Low-Activity Waste Performance Assessment

McGrail¹,

Icenhower²,

Martin³

et al. 2001

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show abstract

“…A series of short-term tests and modeling approaches has been identified in an attempt to link glass composition to performance in the disposal facility (Schulz et al, 2000). This testing series includes the Product Consistency Test (PCT-A and PCT-B) and the Vapor Hydration Test (VHT).…”

mentioning

confidence: 99%

Establishment of Vapor Hydration Test (VHT) Capabilities at the Savannah River Technology Center

Lorier¹

2003

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Hanford Immobilized LAW Product Acceptance: Tanks Focus Area Testing Data Package II

Cited by 2 publications

References 20 publications

Waste Form Release Data Package for the 2001 Immobilized Low-Activity Waste Performance Assessment

Waste Form Release Data Package for the 2001 Immobilized Low-Activity Waste Performance Assessment

Establishment of Vapor Hydration Test (VHT) Capabilities at the Savannah River Technology Center

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