The NTIS website and supporting ordering systems are undergoing a major upgrade from 8PM on September 25th through approximately October 6. During that time, much of the functionality, including subscription and product ordering, shipping, etc., will not be available. You may call NTIS at 1-800-553-6847 or (703) 605-6000 to place an order but you should expect delayed shipment. Please do NOT include credit card numbers in any email you might send NTIS.
Documents in the NTIS Technical Reports collection are the results of federally funded research. They are directly submitted to or collected by NTIS from Federal agencies for permanent accessibility to industry, academia and the public.  Before purchasing from NTIS, you may want to check for free access from (1) the issuing organization's website; (2) the U.S. Government Printing Office's Federal Digital System website; (3) the federal government Internet portal; or (4) a web search conducted using a commercial search engine such as
Accession Number DE13-1105103
Title Preliminary Scaling Estimate for Select Small Scale Mixing Demonstration Tests.
Publication Date Sep 2013
Media Count 116p
Personal Author B. E. Wells D. R. Rector J. A. Fort P. A. Gauglitz P. P. Schonewill
Abstract 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 smallscale 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. The purpose of the 2013 testing was to estimate scaling relationships for waste feed delivery tank performance metrics, in particular transfer UDS concentration. A statistically designed test plan was used to generate accurate and quantifiable correlations. These tests also used a simulant that better represented Hanford Site tank waste. The solids mixtures used in the base simulant for these tests is similar to the 2011 multicomponent Complex 5 simulant, however, the 2013 Base simulant has two variations, a typical and more challenging, high base loading. The liquid fraction of the simulant is tailored to provide corresponding typical and high viscosities, which better represent the Hanford Site tank waste supernatant. Water was used as the liquid fraction of the simulant in 2011 SSMD testing.
Keywords Demonstration programs
Feed materials plants
Hanford Reservation
Liquid wastes
Performance evaluation
Radioactive waste processing
Waste treatment

Source Agency Technical Information Center Oak Ridge Tennessee
NTIS Subject Category 77G - Radioactive Wastes & Radioactivity
Corporate Author Pacific Northwest National Lab., Richland, WA.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1412
Contract Number DE-AC05-76RL01830

Science and Technology Highlights

See a sampling of the latest scientific, technical and engineering information from NTIS in the NTIS Technical Reports Newsletter

Acrobat Reader Mobile    Acrobat Reader