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REFINEMENT OF THE NEPHELINE DISCRIMINATOR: RESULTS OF A PHASE I STUDY

Description: The performance of a glass used for immobilization of high-level nuclear waste (HLW) is generally quantified by its resistance to chemical degradation, or durability. The durability of a HLW glass is dependent on its composition. If crystalline phases form within a glass during cooling, the composition of the residual glass network is altered, therefore affecting the durability of the glass. Crystallization of nepheline (NaAlSiO{sub 4}) has been shown to adversely impact the durability of HLW g… more
Date: February 13, 2008
Creator: Fox, K; James Newell, J; Tommy Edwards, T; David Best, D; Irene Reamer, I & Phyllis Workman, P
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

FRIT DEVELOPMENT FOR SLUDGE BATCH 6

Description: The Savannah River National Laboratory (SRNL) evaluated a large number of Sludge Batch 6 (SB6) composition projections to support frit optimization for SB6 vitrification at the Defense Waste Processing Facility (DWPF). The evaluations discussed in this report occurred over a period of about 4 months, and included about 40 composition projections, developed by both Savannah River Remediation (SRR) and SRNL. Paper study assessments were used to evaluate the sludge composition projections with arr… more
Date: May 13, 2010
Creator: Fox, K.; Edwards, T. & Zamecnik, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

MELT RATE TESTING FOR SLUDGE BATCH 6

Description: The Savannah River National Laboratory (SRNL) was requested to provide Savannah River Remediation (SRR) with a recommended frit composition for Sludge Batch 6 (SB6) to optimize processing at the Defense Waste Processing Facility (DWPF). This report discusses the results of a series of melt rate experiments that were completed in support of the frit recommendation and the preparation of the feed used in the testing. The objective of the work was to identify the impact of individual frit componen… more
Date: May 13, 2010
Creator: Fox, K.; Miller, D. & Pickenheim, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Report on the Instrument Development Workshop for Biological Imaging Experiments at LCLS

Description: The Linac Coherent Light Source (LCLS) will launch a new era in X-ray science by providing 200 fs pulses of X rays with a peak brightness up to 10 orders of magnitude greater than current sources. One of the most exciting and far-reaching experiments that this new source will enable is single-particle diffraction imaging, whereby atomic-resolution structure of biological macromolecules, complexes, or viruses could be obtained without the need for crystallization. Time-resolved structures and dy… more
Date: August 13, 2004
Creator: Chapman, H; Hajdu, J & Hodgson, K
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

FRACTIONAL CRYSTALLIZATION FLOWSHEET TESTS WITH ACTUAL TANK WASTE

Description: Laboratory-scale flowsheet tests of the fractional crystallization process were conducted with actual tank waste samples in a hot cell at the 2224 Laboratory. The process is designed to separate medium-curie liquid waste into a low-curie stream for feeding to supplemental treatment and a high-curie stream for double-shell tank storage. Separations criteria (for Cesium-137 sulfate and sodium) were exceeded in all three of the flowsheet tests that were performed.
Date: April 13, 2007
Creator: HERTING, D.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Pilot test of Pickliq{reg_sign} process to determine energy and environmental benefits & economic feasibility

Description: Green Technology Group (GTG) was awarded Grant No. DE-FG01-96EE 15657 in the amount of $99,904 for a project to advance GTG`s Pickliq{reg_sign} Process in the Copper and Steel Industries. The use of the Pickliq{reg_sign} Process can significantly reduce the production of waste acids containing metal salts. The Pickliq{reg_sign} Process can save energy and eliminate hazardous waste in a typical copper rod or wire mill or a typical steel wire mill. The objective of this pilot project was to deter… more
Date: July 13, 1997
Creator: Olsen, D.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The crystallization of hectorite clays as monitored by small angle X-ray scattering and NMR

Description: The authors have probed the 48-hr crystallization of a magnesium silicate clay called hectorite. Small angle X-ray scattering (SAXS) at the Advanced Photon Source using aliquots ex situ has revealed that data is consistent with ex situ XRD, TGA, AFM, and IR data in that all these techniques see clay crystallite beginning to form in the first few hours of reaction. Tetraethylammonium (TEA) ions are used to aid crystallization and become incorporated as the exchange cations within the interlayers… more
Date: December 13, 1999
Creator: Carrado, K. A.; Xu, L.; Seifert, S.; Gregory, D.; Song, K. & Botto, R. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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