Characterization and Delivery of Hanford High-Level Radioactive Waste Slurry
Two primary challenges to characterizing Hanford’s high-level radioactive waste slurry prior to transfer to a treatment facility are the ability to representatively sample million-gallon tanks and to estimate the critical velocity of the complex slurry. Washington River Protection Solutions has successfully demonstrated a sampling concept that minimizes sample errors by collecting multiple sample increments from a sample loop where the mixed tank contents are recirculated. Pacific Northwest National Laboratory has developed and demonstrated an ultrasonic-based Pulse-Echo detection device that is capable of detecting a stationary settled bed of solids in a pipe with flowing slurry. These two concepts are essential elements of a feed delivery strategy that drives the Hanford clean-up mission.
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- Conference: 19th International Conference on Hydrotransport 2014, September 24-26, 2014, Golden, Colorado, 461-478
- BHR Groupo, Belfordshire, United Kingdom.
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- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
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- United States
- ultrasound; ultrasonic; PulseEcho; pulse echo; pulse-echo; slurry; critical velocity; Hanford; tank farm; waste certification; waste acceptance criteria