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Foaming and Antifoaming in Radioactive Waste Pretreatment and Immobilization Processes

Description: Savannah River National Laboratory (SRNL) has reported severe foaminess in the bench scale evaporation of the Hanford River Protection - Waste Treatment Plant (RPP-WPT) envelope C waste. Excessive foaming in waste evaporators can cause carryover of radionuclides and non-radioactive waste to the condensate system. The antifoams used at Hanford and tested by SRNL are believed to degrade and become inactive in high pH solutions. Hanford wastes have been known to foam during evaporation causing excessive down time and processing delays.
Date: March 12, 2005
Creator: Wasan, Darsh T.; Nikolov, Alex D.; Lamber, D.P.; Calloway, T. Bond & Stone, M.E.
Partner: UNT Libraries Government Documents Department