The effects of water quality on pile operation
Tests have been made to study the effects of lowering process water pH from pH 7.7 to the range pH 6.2--7.3; of reducing the amount of sodium dichromate inhibitor added to the water; and of eliminating the filtration step in the water treatment process. The results on the pH testing showed that reducing the pH of the cooling water would reduce aluminum corrosion rates. The plant specification has been changed to lower process water pH from 7.7 to 7.3 and plant scale testing of pH 7.0 water is in progress. Reducing the dichromate concentration in the water from 2 to 0.2 ppm had no deleterious effects on the aluminium pile components but might cause pitting of the carbon steel pile effluent lines. The use of unfiltered water is technically feasible from the stand-points of corrosion and film formation but probably would cause a sizable increase in the radioactivity of the pile effluent water. 6 figs., 5 tabs.
- Research Organization:
- General Electric Co., Richland, WA (United States). Hanford Atomic Products Operation
- Sponsoring Organization:
- DOE/DP
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 6397260
- Report Number(s):
- HW-34544; ON: DE91002681
- Resource Relation:
- Other Information: Declassified 1 Nov 1990
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
HANFORD PRODUCTION REACTORS
REACTOR COOLING SYSTEMS
WATER TREATMENT
ALUMINIUM
BOILERS
CHROMATES
COOLANTS
CORROSIVE EFFECTS
FILTRATION
HISTORICAL ASPECTS
PH VALUE
PRESSURE TUBES
PROGRESS REPORT
RADIOACTIVE EFFLUENTS
SCALING
SODIUM
ALKALI METALS
CHROMIUM COMPOUNDS
COOLING SYSTEMS
DOCUMENT TYPES
ELEMENTS
ENERGY SYSTEMS
MATERIALS
METALS
OXYGEN COMPOUNDS
PLUTONIUM PRODUCTION REACTORS
PRODUCTION REACTORS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
REACTOR COMPONENTS
REACTORS
SEPARATION PROCESSES
TRANSITION ELEMENT COMPOUNDS
TUBES
WASTES
220700* - Nuclear Reactor Technology- Plutonium & Isotope Production Reactors