Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4910904 | Procedia Chemistry | 2016 | 7 Pages |
Abstract
AREVA La Hague plants UP3 and UP2-800 started operations to reprocess spent nuclear fuel in 1990 and 1994 respectively. Aging equipment in these plants is a cause for concern as it could lead to process dysfunctions or production rate decrease. A few years ago, several columns had to be replaced in UP3-T4 plutonium purification facility because of clogging. Analyses revealed that TPH degradation products could be responsible for precipitating palladium compounds. 1 M NaOH solutions proved to be efficient to dissolve most of the precipitate. Therefore, several columns in both UP3 and UP2-800 are from now on washed periodically with 1 M NaOH solutions to avoid further clogging and to dissolve current precipitates.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
S. De Sio, I. Klur, E. Tison, C. Bouyer, D. Lebeau, F. Goutelard, L. Séjourné, C. Eysseric, N. Vigier,