Drying medium level liquid waste concentrates

Experiments on drying simulated medium level liquid waste concentrates on the laboratory and technical scales produced, under the selected conditions (40–80, about 20–200 mbar), a dry salt cake (residual moisture less than 0.6%). Splashing of the drying product during the final phase of drying has been largely avoided by addition of small amounts of sodium tetraborate. During the whole test (heating, drying, secondary drying, cooling) no exothermic reactions took place.