Foaming and Antifoaming in Radioactive Waste Pretreatment and Immobilization Processes Page: 4 of 28
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disposition of Savannah River Site (SRS) high level radioactive (HLW) salt
solutions. This new and advanced antifoam agent was found to be more effective
than those commercially available. Process demonstration studies using advanced
antifoam agent IIT-B52 reveals that the antifoam agent also acts as a powerful
rheological aid that can dramatically reduce the rheology of SRS HLW potassium
tetraphenylborate slurries and can de-entrain air from the slurry.
Therefore, the results of this research have led to the successful development
of a new antifoam agent which can also act as a rheology modifier, enhance
the processing throughput of the HLW slurries, and accelerate the DOE
The objective of this research is to develop a fundamental understanding of the
physico-chemical mechanisms that cause foaminess in the DOE High Level
(HLW) and Low Activity radioactive waste separation processes and to develop
and test advanced antifoam/defoaming agents. Antifoams developed for this
research are tested using simulated defense HLW radioactive wastes obtained
from the Hanford and Savannah River sites.
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Wasan, Darsh T.; Nikolov, Alex D.; Lamber, D.P.; Calloway, T. Bond & Stone, M.E. Foaming and Antifoaming in Radioactive Waste Pretreatment and Immobilization Processes, report, March 12, 2005; United States. (https://digital.library.unt.edu/ark:/67531/metadc780348/m1/4/?rotate=270: accessed April 23, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.