Corrosion probe. Innovative technology summary report
Over 253 million liters of high-level waste (HLW) generated from plutonium production is stored in mild steel tanks at the Department of Energy (DOE) Hanford Site. Corrosion monitoring of double-shell storage tanks (DSTs) is currently performed at Hanford using a combination of process knowledge and tank waste sampling and analysis. Available technologies for corrosion monitoring have progressed to a point where it is feasible to monitor and control corrosion by on-line monitoring of the corrosion process and direct addition of corrosion inhibitors. The electrochemical noise (EN) technique deploys EN-based corrosion monitoring probes into storage tanks. This system is specifically designed to measure corrosion rates and detect changes in waste chemistry that trigger the onset of pitting and cracking. These on-line probes can determine whether additional corrosion inhibitor is required and, if so, provide information on an effective end point to the corrosion inhibitor addition procedure. This report describes the technology, its performance, its application, costs, regulatory and policy issues, and lessons learned.
- Research Organization:
- Dept. of Energy, Office of Science and Technology, Washington, DC (United States)
- Sponsoring Organization:
- USDOE Office of Environmental Restoration and Waste Management, Washington, DC (United States)
- OSTI ID:
- 353201
- Report Number(s):
- DOE/EM-0430; ON: DE99002864; IN: OST Reference No. 1985; NC: NONE; TRN: AHC29923%%32
- Resource Relation:
- Other Information: DN: Center for Environmental Management Information, 1-800-736-3282; PBD: May 1999
- Country of Publication:
- United States
- Language:
- English
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