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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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Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
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.”
Charles W. Forsberg, Edward C. Beahm
Nuclear Technology | Volume 123 | Number 3 | September 1998 | Pages 341-349
Technical Note | Reprocessing | doi.org/10.13182/NT98-A2904
Articles are hosted by Taylor and Francis Online.
A new process has been invented that converts complex wastes containing fissile materials into a chemical form that allows the use of existing technologies (such as Purex and ion exchange) to recover the fissile materials and convert the resultant wastes to glass. Potential feed materials include (a) uranium fissile wastes, (b) miscellaneous spent nuclear fuel, and (c) plutonium scrap and residue. The initial feed materials may contain mixtures of metals, ceramics, amorphous solids, halides, and organics.The process consists of three major sets of process operations. During the first set of operations, the feed is dissolved into molten lead-borate glass and then converted to a boron oxide (B2O3) fusion melt. During this process, (a) the organics and metals are oxidized and (b) the halides and noble metals are separated from the melt. During the second set of operations, the cooled fusion melt is dissolved into nitric acid, and the uranium and plutonium are recovered from the acid using standard aqueous separation processes such as Purex and ion exchange. During the third set of operations, standard waste vitrification processes convert the residual waste to borosilicate glass. The B2O3 can be recovered and recycled at several locations within the process.