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Removing Phosphate from Hanford High-Phosphate Tank Wastes: FY 2010 Results

Description: The U.S. Department of Energy (DOE) is responsible for environmental remediation at the Hanford Site in Washington State, a former nuclear weapons production site. Retrieving, processing, immobilizing, and disposing of the 2.2 × 105 m3 of radioactive wastes stored in the Hanford underground storage tanks dominates the overall environmental remediation effort at Hanford. The cornerstone of the tank waste remediation effort is the Hanford Tank Waste Treatment and Immobilization Plant (WTP). As cu… more
Date: September 22, 2010
Creator: Lumetta, Gregg J.; Braley, Jenifer C.; Edwards, Matthew K.; Qafoku, Odeta; Felmy, Andrew R.; Carter, Jennifer C. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Sigma Team for Minor Actinide Separation: PNNL FY 2010 Status Report

Description: Work conducted at Pacific Northwest National Laboratory (PNNL) in FY 2010 addressed two lines of inquiry. The two hypotheses put forth were: 1. The extractants from the TRUEX( ) process (CMPO)( ) and from the TALSPEAK( ) process (HDEHP)( ) can be combined into a single process solvent to separate 1) the lanthanides and actinides from acidic high-level waste and 2) the actinides from the lanthanides in a single solvent extraction process. (Note: This combined process will hereafter be referred t… more
Date: August 24, 2010
Creator: Lumetta, Gregg J.; Sinkov, Sergey I.; Neiner, Doinita; Levitskaia, Tatiana G.; Braley, Jenifer C.; Carter, Jennifer C. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Sigma Team for Minor Actinide Separation: PNNL FY 2011 Status Report

Description: This report summarizes work conducted in FY 2011 at PNNL to investigate new methods of separating the minor actinide elements (Am and Cm) from the trivalent lanthanide elements, and separation of Am from Cm. For the former, work focused on a solvent extraction system combining an acidic extractant (HDEHP) with a neutral extractant (CMPO) to form a hybrid solvent extraction system referred to as TRUSPEAK (combining the TRUEX and TALSPEAK processes). For the latter, ligands that strongly bing ura… more
Date: August 13, 2011
Creator: Lumetta, Gregg J.; Braley, Jenifer C.; Sinkov, Sergey I.; Levitskaia, Tatiana G.; Carter, Jennifer C.; Warner, Marvin G. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Separating the Minor Actinides Through Advances in Selective Coordination Chemistry

Description: This report describes work conducted at the Pacific Northwest National Laboratory (PNNL) in Fiscal Year (FY) 2012 under the auspices of the Sigma Team for Minor Actinide Separation, funded by the U.S. Department of Energy Office of Nuclear Energy. Researchers at PNNL and Argonne National Laboratory (ANL) are investigating a simplified solvent extraction system for providing a single-step process to separate the minor actinide elements from acidic high-level liquid waste (HLW), including separat… more
Date: August 22, 2012
Creator: Lumetta, Gregg J.; Braley, Jenifer C.; Sinkov, Sergey I. & Carter, Jennifer C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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