Electrochemical probing of high-level radioactive waste tanks containing washed sludge and precipitates
At the U.S. Department of Energy's Savannah River Plant, corrosion of carbon steel storage tanks containing alkaline, high-level radioactive waste is controlled by specification of limits on waste composition and temperature. Processes for the preparation of waste for final disposal will result in waste with low corrosion inhibitor concentrations and, in some cases, high aromatic organic concentrations, neither of which are characteristic of previous operations. Laboratory tests, conducted to determine minimum corrosion inhibitor levels indicated pitting of carbon steel near the waterline for proposed storage conditions. In situ electrochemical measurements of full-scale radioactive process demonstrations have been conducted to assess the validity of laboratory tests. Probes included pH, Eh (potential relative to a standard hydrogen electrode), tank potential, and alloy coupons. In situ results are compared to those of the laboratory tests, with particular regard given to simulated solution composition.
- OSTI ID:
- 6982145
- Report Number(s):
- CONF-870314-; TRN: 88-023106
- Resource Relation:
- Conference: Corrosion '87, San Francisco, CA, USA, 9 Mar 1987
- Country of Publication:
- United States
- Language:
- English
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Corrosion of radioactive waste tanks containing washed sludge and precipitates
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Related Subjects
36 MATERIALS SCIENCE
CARBON STEELS
CORROSION PROTECTION
CORROSION INHIBITORS
TANKS
RADIOACTIVE WASTE STORAGE
ADDITIVES
CATHODIC PROTECTION
CHEMICAL COMPOSITION
CORROSIVE EFFECTS
ELECTROCHEMISTRY
HIGH-LEVEL RADIOACTIVE WASTES
HYDROXIDES
MATERIALS TESTING
PASSIVATION
PITTING CORROSION
RADIOACTIVE WASTE PROCESSING
SAVANNAH RIVER PLANT
SLUDGES
ALLOYS
CHEMICAL REACTIONS
CHEMISTRY
CONTAINERS
CORROSION
HYDROGEN COMPOUNDS
IRON ALLOYS
IRON BASE ALLOYS
MANAGEMENT
MATERIALS
NATIONAL ORGANIZATIONS
OXYGEN COMPOUNDS
PROCESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
STEELS
STORAGE
TESTING
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WASTE MANAGEMENT
WASTE PROCESSING
WASTE STORAGE
WASTES
052002* - Nuclear Fuels- Waste Disposal & Storage
360105 - Metals & Alloys- Corrosion & Erosion