Partitioning of Tank Waste Sludge in a 5-cm Centrifugal Contactor Under Caustic-Side Solvent Extraction Conditions

Evaluation of Mass Transfer Performance for Caustic-Side Solvent Extraction of Cesium in a Conventional 5-cm Centrifugal Contactor

“…The solvent had been used in previous contactor throughput and mass transfer testing 1 and was used most recently in tests to determine the ability of the contactor to process sludge-containing waste supernatant. 2 Prior to its use in the reported test program, the solvent was clarified by gravity settling to remove solids remaining from the preceding test. The solvent was then scrubbed by contact with 0.05 M HNO 3 , stripped with 0.001 M HNO 3 , and washed with 0.01 M NaOH.…”