Foaming and Antifoaming in Radioactive Waste Pretreatment and Immobilization Processes

Wasan, Darsh T. ; Nikolov, Alex D. ; Lamber, D.P. ; Calloway, T. Bond ; Stone, M.E.

Illinois Institute of Technology (United States)

关键词: Evaporators;    Waste Processing;    Evaporation;    Processing;    Radioactive Wastes;   

DOI  :  10.2172/839400
RP-ID  :  DOE/ER/14828
RP-ID  :  FG07-97ER14828
RP-ID  :  839400

美国|英语

来源: UNT Digital Library

【 摘 要 】

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.