Novel Method for Removing Gadolinium from Used Heavy Water Reactor Moderator
Journal Article
·
· Nuclear Technology
OSTI ID:799366
A novel process to treat used heavy water moderator (D2O) contaminated with high concentrations of the neutron poison, gadolinium nitrate,Gd(NO3)3, is described. Gadolinium is removed by precipitation. The resultant precipitate (GdPO4. 6H2O) represents an extremely rare compound of considerable potential value. The resultant supernatant consisting of residual nitrate (NaNO3 or KNO3) is less toxic and easier to process than the original waste. Thus, the alkali metal waste handling can be done with considerably less environmental concern. This waste can potentially be treated by a combination of electrochemical and biological methods.
- Research Organization:
- Savannah River Site (SRS), Aiken, SC (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC09-96SR18500
- OSTI ID:
- 799366
- Report Number(s):
- WSRC-MS-2002-00146; NUTYBB; TRN: US0206386
- Journal Information:
- Nuclear Technology, Other Information: PBD: 14 May 2002; ISSN 0029-5450
- Country of Publication:
- United States
- Language:
- English
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