Open AccessOrganic tanks safety program, FY97 waste aging studies. Revision 1
Author(s) -
D.M. Camaioni,
William D. Samuels,
John C. Linehan,
Arun K. Sharma,
Martin Hogan,
M.A. Lilga,
S.A. Clauss,
Karen L. Wahl,
Jay A. Campbell
Publication year - 1998
Publication title -
osti oai (u.s. department of energy office of scientific and technical information)
Language(s) - English
Resource type - Reports
DOI - 10.2172/650142
Subject(s) - radiolysis , radical , nitrite , nitrate , chemistry , radioactive waste , reactivity (psychology) , accelerated aging , waste management , environmental chemistry , environmental science , nuclear chemistry , organic chemistry , medicine , alternative medicine , pathology , engineering
To model tank waste aging and interpret tank waste speciation results, the authors began measuring the reactivity of organic complexants and related compounds towards radiation-induced oxidation reactions. Because of the high efficiency of scavenging of the primary radicals of water radiolysis by nitrate and nitrite ion, the major radiolytically-generated radicals in these solutions, and in Hanford tank wastes, are NO{sub 2}, NO and O{sup {minus}}. Prior to this effort, little quantitative information existed for the reactions of these radicals with organic compounds such as those that were used in Hanford processes. Therefore, modeling of actual waste aging, or even simulated waste aging, was not feasible without measuring reactivities and determining reaction paths. The authors have made the first rate measurements of complexant aging and determined some of their degradation products
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