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Title: Status Report: Pretreatment chemistry evaluation-Wash and leach factors for the single-shell tank waste inventory

Technical Report ·
DOI:https://doi.org/10.2172/374091· OSTI ID:374091

This report discusses a methodology developed to depict overall wash and leach factors for the Hanford single-shell tank (SST) inventory. The factors derived from this methodology, which is based on available partitioning data, are applicable to a composite SST inventory rather than only an assumed insoluble portion. The purpose of considering the entire inventory is to provide a more representative picture of the partitioning behavior of the analytes during envisioned waste retrieval and processing activities. The work described in this report was conducted by the Pretreatment Chemistry Evaluation task of the Tank Waste Remediation System (TWRS). The leach factors will be used to estimate the further removal of analytes, such as sodium, aluminum, phosphate, and other minor components. Wash and leach factors are given for elements expected to drive the volume of material disposed of as high-level waste (HLW).

Research Organization:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC06-76RL01830
OSTI ID:
374091
Report Number(s):
PNNL-11290; ON: DE96050424; TRN: 96:025637
Resource Relation:
Other Information: PBD: Sep 1996
Country of Publication:
United States
Language:
English