2009 Spring Meeting & 5th Global Congress on Process Safety
(51f) Understanding the Effects of Surfactant Addition Using Microscopy
Authors
T. Bond Calloway Jr. - Presenter, Savannah River National Laboratory
Thomas L. White - Presenter, Savannah River National Laboratory
Michael E Stone - Presenter, Savannah River National Laboratory
Robin L. Brigmon - Presenter, Savannah River National Laboratory
Russell E. Eibling - Presenter, Savannah River National Laboratory
The effectiveness of three dispersants to modify rheology was examined using rheology measurements and laser scanning confocal microscopy in simulated waste solutions. All of the dispersants lowered the yield stress of the slurries below the baseline samples. The rheology curves were fitted reasonably to a Bingham Plastic model. CLSM images of the simulants showed distinct aggregates which were greatly reduced after the addition of dispersants leading to a lowering of the yield stress of the simulated waste slurry solutions.