(36a) Pilot-Scale Testing of Solid Suspension by Rotating Jets In a Tank

The Small Column Ion Exchange (SCIX) process is being developed to remove cesium, strontium, and select actinides from Savannah River Site (SRS) Liquid Waste using an existing waste tank (85 ft diameter) to house the process.  Savannah River National Laboratory (SRNL) is conducting pilot-scale mixing tests to determine the pump requirements for suspending monosodium titanate (MST), crystalline silicotitanate (CST), and simulated sludge.  The purpose of this pilot scale testing is to determine the requirements for the pumps to suspend the MST particles so that they can contact the strontium and actinides in the liquid and be removed from the tank. 

The pilot-scale tank is a 1/10.85 linear scaled model of an SRS waste tank.  The tank diameter, tank liquid level, pump nozzle diameter, pump elevation, and cooling coil diameter are all 1/10.85 of their full-scale dimensions.  The pump locations correspond to the proposed locations in the waste tank.  This presentation will discuss the testing and results.