Corrosion monitoring of storage bins for radioactive calcines Page: 3 of 21
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II INTRODUCTION
High-level radioactive aqueous wastes resulting from the solvent
extraction of uranium from nuclear fuel elements are calcined to granular
solids in the Waste Calcining Facility (WCF) at the Idaho Chemical Processing
Plant (ICPP). The granular solids are stored in stainless steel bins
which in turn are contained inside buried concrete vaults. This arrange-
ment provides double containment and methods for detecting failure
of the primary containers, or seepage of surface or ground water through
a fissure in the concrete vault. The calcined product from the WCF is
spherical and granular in nature.
The original waste storage facility, consisting of four annular bins,
has been filled with ;:proximately 7,500 cubic feet of calcined solids.
The second storage facility consists of seven cylindrical bins, and has a
storage capacity of approximately 30,000 cubic feet. The third set of bins
of 40,000 cubic feet capacity is similar in design to the second facility.
These bins were placed in service in 1973.
During October 1973, corrosion coupons were removed from two bins in
the second solids storage facility. One bin contained alumina calcine
solids and the other zirconium calcine solids, described in Section III.
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Hoffman, T.L. Corrosion monitoring of storage bins for radioactive calcines, article, January 1, 1975; United States. (https://digital.library.unt.edu/ark:/67531/metadc871396/m1/3/: accessed July 17, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.