Process for Separating Liquids from Suspensions.
U S Pat 3 956 116 1976 May; :
A process is described for accelerating the separation of liquid from solids in a slow-settling suspension without the necessity of employing chemical additives or using centrifuges or filters. The process involves the movement of a relatively large mesh screen or netting through the suspension at a slow steady rate, with the result that the solid material is concentrated or compacted ahead of the moving screen, leaving a clarified liquid behind the moving screen. The process is employed successfully with phosphate slimes resulting from a commercial mining operation in Florida.
U.S. Pat. 3,956,116; May 25, 1976; Chem. Abstr. 85:P179,674c