EVALUATION OF SOME POSSIBLE DECONTAMINATING REAGENTS FOR THE NRU REACTOR
Technical Report
·
OSTI ID:4077375
A series of out-pile laboratory and loop tests was conducted to find a suitable reagent thnt could be added to the NRU heavy-water system to remove uranium contamination. The choice of reagent and its concentration is governed by corrosion of the aluminum components of the system and the ease of removal of the reagent from the heavy water after decontamination. The most attractive reagent tried was chrornic acid at a concentration of 10/sup -2/M. This reagent attacks UO/sub 2/ and removes deposited uranium from aluminum surfaces, but, at the same time, it is an inhibitor of aluminum corrosion. At a concentration of 10/sup -2/M, it could easily be removed from the system by evaporation and ion exchange. No deuterization would be necessary before adding the acid to the heavy water. (auth)
- Research Organization:
- Atomic Energy of Canada Ltd. Chalk River Project, Chalk River, Ont.
- NSA Number:
- NSA-15-012459
- OSTI ID:
- 4077375
- Report Number(s):
- CRCE-926; AECL-1116
- Country of Publication:
- Canada
- Language:
- English
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