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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.
2020 ANS Virtual Winter Meeting
November 16–19, 2020
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Fusion Science and Technology
U.S. reactor technologies to be featured at IAEA conference
A virtual side event at the 64th General Conference of the International Atomic Energy Agency will spotlight U.S. reactor technologies. The free event, US Reactor Technologies: Flexible Energy Security for Real-World Challenges, will be held this Thursday, September 24, from 9:00 a.m. to 10:30 a.m. (EDT).
The event will highlight the capabilities of small modular reactors and other innovative reactors for addressing countries’ current needs. It will also examine anticipated challenges in the future, as well as underscore the need to act now.
The event is sponsored by the U.S. Department of Energy’s Office of Nuclear Energy. Advanced registration is required.
George Ana, Anisia Bornea, Ciprian Bucur, Alina Niculescu, Felicia Vasut, Ovidiu Balteanu, Marius Zamfirache
Fusion Science and Technology | Volume 76 | Number 3 | April 2020 | Pages 321-326
Technical Paper | dx.doi.org/10.1080/15361055.2020.1711854
Articles are hosted by Taylor and Francis Online.
Whether they are based on fusion (JET, ITER, DEMO) or fission (e.g., CANDU type) or are cooled using molted salts [molten salt reactors (MSRs)], nuclear reactors generate significant amounts of waste in the form of low-level tritiated light water or heavy water, which generates risks for the environment and radiological risks for operating personnel. Given the wide range of tritium concentrations of tritiated water waste, processing it efficiently is possible only if the process is based on the combined process of liquid phase catalitic exchange and electrolysis of water. During this process, tritium is concentrated as tritiated water, which reduces the amount of waste and concentrates the water at the isotopic level high enough for further processing in view of tritium recovery, employing isotopic transfer in gas form. This paper reports on the modification of an industrial hydrogen generator in view of tritium compatibility to be used for further processing of tritiated (heavy) water for tritium recovery. Additionally, analysis will be made, and results will be presented on what will be the tritium/deuterium concentration profile in the generator and what influence the water holdup will have on the isotope concentration.