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Title: Mixing of process heels, process solutions, and recycle streams: Results of the small-scale radioactive tests

Technical Report ·
DOI:https://doi.org/10.2172/754949· OSTI ID:754949

Various recycle streams will be combined with the low-activity waste (LAW) or the high-level waste (HLW) feed solutions during the processing of the Hanford tank wastes by BNFL, Inc. In addition, the LAW and HLW feed solutions will also be mixed with heels present in the processing equipment. This report describes the results of a test conducted by Battelle to assess the effects of mixing specific process streams. Observations were made regarding adverse reactions (mainly precipitation) and effects on the Tc oxidation state (as indicated by K{sub d} measurements with SuperLig{reg_sign} 639). The work was conducted according to test plan BNFL-TP-29953-023, Rev. 0, Small Scale Mixing of Process Heels, Solutions, and Recycle Streams. The test went according to plan, with only minor deviations from the test plan. The deviations from the test plan are discussed in the experimental section.

Research Organization:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Organization:
US Department of Energy (US)
DOE Contract Number:
AC06-76RL01830
OSTI ID:
754949
Report Number(s):
PNWD-3029; BNFL-RPT-023; R&D Project: 29953; BNFL-RPT-023; TRN: US0002671
Resource Relation:
Other Information: PBD: 17 May 2000
Country of Publication:
United States
Language:
English