DWPF glass redox determination: Summary of results from Clemson subcontract
Development of a rapid and reliable method for glass redox determination is needed for DWPF. Glass redox is important to melter and cold cap chemistry: reducing conditions limit glass foaming and devitrification but overly reducing conditions may cause metallic species to form in the melt which could agglomerate and settle to the floor of the melter. Two analytic techniques for glass redox made from the DWPF feed are being investigated: Mossbauer spectroscopy which may be subject to interference from the radiation in actual waste and a rapid and simple dissolution/chemical technique. The wet chemical techniques are also necessary in order to calibrate the Mossbauer spectra. Determination of Savannah River waste glass redox by Mossbauer spectroscopy and wet chemical techniques has been examined at Clemson University. The study involves experimental evaluation of wet chemical techniques, experimental determination of Fe/sup 2 +//Fe/sup 3 +/ ratios by Mossbauer spectroscopy, and comparison of the Fe/sup 2 +//Fe/sup 3 +/ ratios determined by the various techniques. The progress of all three phases is summarized in this report. The details of the first phase are given in the attached report. 26 refs., 6 figs., 3 tabs.
- Research Organization:
- Savannah River Lab., Aiken, SC (USA)
- DOE Contract Number:
- AC09-76SR00001
- OSTI ID:
- 7056997
- Report Number(s):
- DPST-86-745; ON: DE89001419
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
CERAMIC MELTERS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
ELECTRIC FURNACES
EVALUATION
FURNACES
HIGH-LEVEL RADIOACTIVE WASTES
KINETICS
MANAGEMENT
MATERIALS
NATIONAL ORGANIZATIONS
PROCESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE MANAGEMENT
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
REACTION KINETICS
REDOX REACTIONS
SAVANNAH RIVER PLANT
US AEC
US DOE
US ERDA
US ORGANIZATIONS
VITRIFICATION
WASTE MANAGEMENT
WASTE PROCESSING
WASTES