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The Nature and Implications of Resuspension in Subaqueous Sulfide Tailings
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- Author(s) / Creator(s)
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Much has been published on resuspension of sediments in lakes and estuaries. In general, resuspension has implications on transport and release of contaminants from the sediments. It has been shown that wind-induced waves contribute to erosion of sediments, which are then distributed to various sections of the water body by currents. Empirical equations formulated on the basis of cohesionless sediment behaviour have been applied to the design of a few tailings ponds in different parts of the world, especially in the selection of the necessary depth of water to minimise negative environmental impacts. The paper highlights the shortcomings inherent in these equations using field-measured data from a tailings site in Canada. Laboratory measured tailings properties are used to identify critical shear stresses required to initiate tailings erosion. The influence of cohesion on resuspension of fine-textured tailings is discussed.
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- Date created
- 2003-01-01
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- Type of Item
- Article (Published)
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