Demonstration of Caustic-Side Solvent Extraction with Savannah River Site High-Level Waste: Results of Organic and Trace Component Analyses.

摘要

Researchers at the Savannah River Technology Center (SRTC) successfully demonstrated the chemistry and process equipment of the Caustic-Side Solvent Extraction (CSSX) flowsheet for the decontamination of high-level waste using a 33-stage, 2-cm centrifugal contactor apparatus. This represents the first CSSX process demonstration using Savannah River Site (SRS) high-level waste solution. Three tests lasting 6, 12, and 48 hours processed simulated average SRS waste, simulated Tank 37H/44F composite waste, and Tank 37H/44F composite high-level waste, respectively. Researchers previously documented the contactor test results for hydraulic performance and cesium removal. This report details the results of analyses for organic compounds and trace components in various process streams based on samples from the 48-hour radioactive waste test.