Rheological and depositional characterisation of paste-like tailings slurries

The rheological and depositional character of tailings from two base metal concentrators are presented based on results obtained in connection with pilot-scale thickening tests and feasibility considerations. Thickening to a volumetric solids concentration of over 45% ( 70% by mass) close to the disposal area results in a non-segregating slurry that can be deposited at average slopes of 3-4%.Operating literature data from installations are briefly described and some macroscopic depositional mechanisms and design features are discussed. Godkänd; 2008; 20081229 (ysko)