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Title: Developing a Fundamental Basis for the Characterization, Separation, and Disposal of Plutonium and Other Actinides in High Level Radioactive Waste: The Effect of Temperature and Electrolyte Concentrations on Actinide Speciation

Abstract

This research involves establishing a foundation for describing the speciation of actinides and lanthanides in the highly alkaline, concentrated electrolyte systems found in HLW. We are developing an experimentally derived thermodynamic description of Pu and actinide complexation in these systems. Initially, we are using chemical analogs for Pu; later we will conduct experiments using Pu itself. The primary matrix of interest is the Na- NO3-OH-H2O system. We are investigating complexation by OH-, acetate, oxalate, and multidentate organic ligands. In addition, we are complementing our thermodynamic measurements with spectroscopic studies to validate assumptions made concerning speciation and stoichiometry.

Authors:
; ;
Publication Date:
Research Org.:
Washington State University, Pullman, WA; Lawrence Berkeley National Lab., Berkeley, CA; University of Idaho (US)
Sponsoring Org.:
USDOE Office of Environmental Management (EM) (US)
OSTI Identifier:
833237
Report Number(s):
EMSP-2000-65352
R&D Project: EMSP 65352; TRN: US0406587
DOE Contract Number:  
FG07-98ER14922; FG07-98ER14935
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 1 Jun 2000
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 54 ENVIRONMENTAL SCIENCES; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ACTINIDES; ELECTROLYTES; PLUTONIUM; RADIOACTIVE WASTES; RARE EARTHS; STOICHIOMETRY; THERMODYNAMICS

Citation Formats

Clark, Sue B, Rao, Linfeng, and Wood, Scott. Developing a Fundamental Basis for the Characterization, Separation, and Disposal of Plutonium and Other Actinides in High Level Radioactive Waste: The Effect of Temperature and Electrolyte Concentrations on Actinide Speciation. United States: N. p., 2000. Web. doi:10.2172/833237.
Clark, Sue B, Rao, Linfeng, & Wood, Scott. Developing a Fundamental Basis for the Characterization, Separation, and Disposal of Plutonium and Other Actinides in High Level Radioactive Waste: The Effect of Temperature and Electrolyte Concentrations on Actinide Speciation. United States. doi:10.2172/833237.
Clark, Sue B, Rao, Linfeng, and Wood, Scott. Thu . "Developing a Fundamental Basis for the Characterization, Separation, and Disposal of Plutonium and Other Actinides in High Level Radioactive Waste: The Effect of Temperature and Electrolyte Concentrations on Actinide Speciation". United States. doi:10.2172/833237. https://www.osti.gov/servlets/purl/833237.
@article{osti_833237,
title = {Developing a Fundamental Basis for the Characterization, Separation, and Disposal of Plutonium and Other Actinides in High Level Radioactive Waste: The Effect of Temperature and Electrolyte Concentrations on Actinide Speciation},
author = {Clark, Sue B and Rao, Linfeng and Wood, Scott},
abstractNote = {This research involves establishing a foundation for describing the speciation of actinides and lanthanides in the highly alkaline, concentrated electrolyte systems found in HLW. We are developing an experimentally derived thermodynamic description of Pu and actinide complexation in these systems. Initially, we are using chemical analogs for Pu; later we will conduct experiments using Pu itself. The primary matrix of interest is the Na- NO3-OH-H2O system. We are investigating complexation by OH-, acetate, oxalate, and multidentate organic ligands. In addition, we are complementing our thermodynamic measurements with spectroscopic studies to validate assumptions made concerning speciation and stoichiometry.},
doi = {10.2172/833237},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {6}
}

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