The Hanford radioactive waste storage site outside of Richland, Washington has 177 underground waste tanks that store approximately 253 million liters of radioactive waste from 50 years of plutonium production. No online corrosion monitoring systems are in place at Hanford to facilitate the early detection of the onset of localized corrosion should it occur in a waste tank. Because of this, a program was started in 1995 to develop an electrochemical noise (EN) system to improve Hanford's corrosion monitoring strategy. The design of the latest systems and the results of operation are described herein.

Subject
Voltage, Laboratory data, Probes, Uniform corrosion rate, Sludge, Corrosion data, Corrosion probes, Pitting, Corrosion monitoring, Linear polarization resistance, Wastes, Electrodes, Uniform corrosion
Keywords:
electrochemical noise, corrosion monitoring, nuclear waste tank
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2004
Association for Materials Protection and Performance (AMPP)
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