Particle Interaction and Stability of Suspended Solids

by Raymond N. Yong, McGill Univ, Geotechnical Research, Cent, Montreal, Que, Canada,



Document Type: Proceeding Paper

Part of: Sedimentation Consolidation Models—Predictions and Validation

Abstract: The physics of particle interaction, which is responsible for the problem of the apparent tardy settling of suspended solids in tailings discharge slurries containing initially low concentrations of solids, is examined in this study. The degree to which the solids remain in a quasi-suspended state is identified as the dispersion stability of the suspension. The equilibrium concentration of solids remaining in suspension at any one time can be calculated in terms of the balance of energy (internal and external) of the system. The examples cover ore treatment tailings, bauxite red mud, and coal preparation slurries.

Subject Headings: Turbidity | Solid mechanics | Mine wastes | Slurries | Particles | Mud | Coal

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