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Division Spotlight
Materials Science & Technology
The objectives of MSTD are: promote the advancement of materials science in Nuclear Science Technology; support the multidisciplines which constitute it; encourage research by providing a forum for the presentation, exchange, and documentation of relevant information; promote the interaction and communication among its members; and recognize and reward its members for significant contributions to the field of materials science in nuclear technology.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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
Vogtle-3 shuts down for valve issue
One of the new Vogtle units in Georgia was shut down unexpectedly on Monday last week for a valve issue that has since been investigated and repaired. According to multiple local news outlets, Georgia Power reported on July 17 that Unit 3 was back in service.
Southern Company spokesperson Jacob Hawkins confirmed that Vogtle-3 went off line at 9:25 p.m. local time on July 8 “due to lowering water levels in the steam generators caused by a valve issue on one of the three main feedwater pumps.”
Daniel William Tedder, Bruce C. Finney
Nuclear Technology | Volume 133 | Number 2 | February 2001 | Pages 242-252
Technical Paper | Radioactive Waste Management and Disposal | doi.org/10.13182/NT01-A3172
Articles are hosted by Taylor and Francis Online.
The effective dissolution of refractory plutonium oxide (fired to T 1000°C) can be carried out by forming ceric nitrate in nitric acid. Preliminary engineering concepts are presented for dissolving such actinide species in the presence of contaminated high-efficiency particulate air (HEPA) filters and incinerator ashes to permit actinide recovery using conventional wet methods. An electrochemical oxidation tank is envisioned with electrodes mounted on the tank lid to facilitate remote operation and maintenance. Contaminated HEPA filters can be treated using an upflow reactor in which ceric nitrate is recirculated between an oxidation tank and a reactor. A membrane separating the electrodes is not required, but special materials of construction are required for all equipment in direct contact with ceric nitrate (e.g., titanium or glass-lined vessels). Since this oxidant is easily reduced to cerous nitrate using oxalic acid, subsequent actinide recovery can be carried out in conventional stainless steel equipment after reduction. The concepts described have been demonstrated on the bench scale.