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Decommissioning & Environmental Sciences
The mission of the Decommissioning and Environmental Sciences (DES) Division is to promote the development and use of those skills and technologies associated with the use of nuclear energy and the optimal management and stewardship of the environment, sustainable development, decommissioning, remediation, reutilization, and long-term surveillance and maintenance of nuclear-related installations, and sites. The target audience for this effort is the membership of the Division, the Society, and the public at large.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Latest News
Argonne’s METL gears up to test more sodium fast reactor components
Argonne National Laboratory has successfully swapped out an aging cold trap in the sodium test loop called METL (Mechanisms Engineering Test Loop), the Department of Energy announced April 23. The upgrade is the first of its kind in the United States in more than 30 years, according to the DOE, and will help test components and operations for the sodium-cooled fast reactors being developed now.
J. W. Kormuth
Nuclear Technology | Volume 37 | Number 2 | February 1978 | Pages 99-102
Technical Paper | Plant Water Chemistry / Reactor | doi.org/10.13182/NT78-A31976
Articles are hosted by Taylor and Francis Online.
Westinghouse pressurized water reactors have experienced soluble releases of 58Co and natural 58Ni into the reactor coolant during refueling shutdowns. When the soluble inventory of 58Co was not managed properly, the refueling water became contaminated, forcing delays in refueling operation schedules. Subsequent testing at other refueling shutdowns identified the development of oxygen species in the coolant as the prime reactant causing the dissolution. Hydrogen peroxide addition to reactor coolant under prescribed conditions was successfully used to create a controllable and soluble release of 58Co and nickel. The controlled release permitted a more deliberate removal of the activity by ion-exchange purification. A lesser, soluble release of the activity was shown to be caused by the depression in reactor coolant pH resulting from dissociation of boric acid following reactor coolant system boration and cooldown.
