✦ LIBER ✦
Study of nitric acid leachout characteristics from weak base anion exchanger to maintain a specified pH regime during Gd(NO3)3 removal from moderator system of 540 MWe PHWRs
✍ Scribed by V. S. Tripathi; V. Balaji; G. Venkateswaran; S. C. Dash
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 281 KB
- Volume
- 87
- Category
- Article
- ISSN
- 0008-4034
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✦ Synopsis
Abstract
Nitric acid leachout characteristics from weak base anion exchanger (WBA) have been experimentally evaluated as a function of total nitric acid loading at a given flow velocity. An empirical first order model is used to explain the column outlet behaviour. Based on the experimental evaluation, a column configuration of a strong acid cation exchanger (SAC) topped mixed bed of SAC and WBA followed by a 5% nitric acid loaded WBA as the bottom layer of the column has been used to remove Gd(NO~3~)~3~ from water while maintaining the column outlet pH in the range of 5.0–5.5.