Preliminary Scaling Estimate for Select Small Scale Mixing Demonstration Tests

Technical Report · Thu Sep 12 04:00:00 EDT 2013

DOI:https://doi.org/10.2172/1105103· OSTI ID:1105103

Wells, Beric E. ^[1]; Fort, James A. ^[1]; Gauglitz, Phillip A. ^[1]; Rector, David R. ^[1]; Schonewill, Philip P. ^[1]

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1. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

The Hanford Site double-shell tank (DST) system provides the staging location for waste that will be transferred to the Hanford Tank Waste Treatment and Immobilization Plant (WTP). Specific WTP acceptance criteria for waste feed delivery describe the physical and chemical characteristics of the waste that must be met before the waste is transferred from the DSTs to the WTP. One of the more challenging requirements relates to the sampling and characterization of the undissolved solids (UDS) in a waste feed DST because the waste contains solid particles that settle and their concentration and relative proportion can change during the transfer of the waste in individual batches. A key uncertainty in the waste feed delivery system is the potential variation in UDS transferred in individual batches in comparison to an initial sample used for evaluating the acceptance criteria. To address this uncertainty, a number of small-scale mixing tests have been conducted as part of Washington River Protection Solutions’ Small Scale Mixing Demonstration (SSMD) project to determine the performance of the DST mixing and sampling systems.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1105103
• Report Number(s): PNNL--22737; 830403000
• Country of Publication: United States
• Language: English

Related Subjects

Double-shell Tank
Waste Treatment and Immobilizatioin Plant