Chemical speciation of strontium, americium, and curium in high level waste: Predictive modeling of phase partitioning during tank processing. Annual progress report, October 1996--September 1997

Technical Report · Wed Dec 31 04:00:00 EST 1997

DOI:https://doi.org/10.2172/12610· OSTI ID:12610

Felmy, A R ^[1]; Choppin, G ^[2]

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1. Pacific Northwest National Lab., Richland, WA (US)
2. Florida State Univ., Tallahassee, FL (US)

'The program at Florida State University was funded to collaborate with Dr. A. Felmy (PNNL) on speciation in high level wastes and with Dr. D. Rai (PNNL) on redox of Pu under high level waste conditions. The funding provided support for 3 research associates (postdoctoral researchers) under Professor G. R. Choppin as P.I. Dr. Kath Morris from U. Manchester (Great Britain), Dr. Dean Peterman and Dr. Amy Irwin (both from U. Cincinnati) joined the laboratory in the latter part of 1996. After an initial training period to become familiar with basic actinide chemistry and radiochemical techniques, they began their research. Dr. Peterman was assigned the task of measuring Th-EDTA complexation prior to measuring Pu(IV)-EDTA complexation. These studies are associated with the speciation program with Dr. Felmy. Drs. Morris and Irwin initiated research on redox of plutonium with agents present in the Hanford Tanks as a result of radiolysis or from use in separations. The preliminary results obtained thus far are described in this report. It is expected that the rate of progress will continue to increase significantly as the researchers gain more experience with plutonium chemistry.'

• Research Organization: Pacific Northwest National Lab., Richland, WA (US)
• Sponsoring Organization: USDOE Office of Environmental Management (EM), Office of Science and Risk Policy
• OSTI ID: 12610
• Report Number(s): EMSP-54621--97; ON: DE00012610
• Country of Publication: United States
• Language: English

Related Subjects

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ACTINIDES
Actinides
CHEMICAL REACTIONS
Chemical Reactions
HIGH-LEVEL RADIOACTIVE WASTES
High-Level Radioactive Wastes
PROGRESS REPORT
Progress Report