Session: Corrosion and Material Protection in Nuclear Systems
Determining Drying Conditions to Mitigate Hanford Double Shell Storage Tank Underside Corrosion (C2026-00410)
Monday, March 16, 2026
11:00 AM - 11:30 AM Central
Location: 371 DE
Earn .5 PDH
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Pavan Shukla, Benjamin Barkai, Kiana Sykes, Roderick Fuentes, Bruce J. Wiersma
The Hanford Site in Washington State has legacy radiological waste that is being retrieved from single shell tanks (SSTs) and transferred to newer, double shell tanks (DSTs) for eventual closure of the SSTs. The waste will be maintained in the DSTs until eventual immobilization can be performed at the Waste Treatment and Immobilization Plant (WTP), currently under construction. Therefore, a large quantity of radioactive waste is currently stored in the DSTs. Pit Air Supply System has been developed to mitigate underside corrosion of the secondary shells of the DSTs. The objectives for the tests are: (i) to measure the growth and changes in pitting corrosion rates of carbon steel under the combinations of the humidity and temperature conditions, and thus (ii) to determine the temperature and humidity levels that mitigate pit initiation and propagation. Experimental work and results will be presented to evaluate conditions associated with the PASS system and determine level of corrosion mitigation under the PASS operating conditions.
