Sediment consolidation in highly flocculated suspensions occurs only if the self-weight of the material exceeds its compressive yield stress. A simple model for sediment densification is presented and applied to the simulation of thickener operations. Measured relationships between sediment self-weight and the extent of consolidation are used to establish underflow densities. Supernatant turbidity data provide the information necessary to predict overflow clarity. It is shown that thickener depth can play a role in determining solids-handling capacity as well as dewatering performance. The application of the model to the design and operation of full-scale thickeners is described.
Format
PDF
File Size
288.1k
Specifications
v 7.0 / 300 dpi
Copyright Date
1/1/95
Publication Date
1/1/95
Digitization Date
12/20/07
Book Title
Proceedings of the XIX Int’l Mineral Processing Congress – Physical & Chemical Processing – Vol 2
