Characterization and Evaluation of Caustic Wash Tank and Solvent Hold Tank Samples from MCU from August to September 2011 (SHT 221-226, SHT 314-319, SHT 1035-1040, and CWT 817-904).

摘要

During processing of Salt Batches 3 and 4 in the Modular Caustic-Side Solvent Extraction Unit (MCU), the decontamination efficiency for cesium declined from historical values and from expectations based on laboratory testing. This report documents efforts to analyze samples of solvent and process solutions from MCU in an attempt to understand the cause of the reduced performance and to recommend mitigations.