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Accession Number DE13-1105034
Title Evaluating Feed Delivery Performance in Scaled Double-Shell Tanks-14070.
Publication Date Nov 2013
Media Count 18p
Personal Author K. P. Lee M. G. Thien
Abstract The Hanford Tank Operations Contractor (TOC) and the Hanford Waste Treatment and Immobilization Plant (WTP) contractor are both engaged in demonstrating mixing, sampling, and transfer system capability using simulated Hanford High-Level Waste (HLW) formulations. This work represents one of the remaining technical issues with the high-level waste treatment mission at Hanford. The TOCs ability to adequately mix and sample high-level waste feed to meet the WTP WAC Data Quality Objectives must be demonstrated. The tank mixing and feed delivery must support both TOC and WTP operations. The tank mixing method must be able to remove settled solids from the tank and provide consistent feed to the WTP to facilitate waste treatment operations. Two geometrically scaled tanks were used with a broad spectrum of tank waste simulants to demonstrate that mixing using two rotating mixer jet pumps yields consistent slurry compositions as the tank is emptied in a series of sequential batch transfers. Testing showed that the concentration of slow settling solids in each transfer batch was consistent over a wide range of tank operating conditions. Although testing demonstrated that the concentration of fast settling solids decreased by up to 25% as the tank was emptied, batch-to-batch consistency improved as mixer jet nozzle velocity in the scaled tanks increased.
Keywords Hanford Reservation
High level radioactive wastes
Performance evaluation
Radioactive waste processing
Radioactive waste storage
Radioactive waste treatment
Waste feed delivery

Source Agency Technical Information Center Oak Ridge Tennessee
NTIS Subject Category 77G - Radioactive Wastes & Radioactivity
Corporate Author Washington River Protection Solutions, Richland, WA.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1412
Contract Number DE-AC27-08RV14800

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