The Nature and Implications of Resuspension in Subaqueous Sulfide Tailings

Yanful, Ernest K.; Mian, M Haneef

doi:10.7939/r3-vemn-jt51

2003

DOI: 10.7939/r3-vemn-jt51

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The Nature and Implications of Resuspension in Subaqueous Sulfide Tailings

Ernest K. Yanful¹,

M Haneef Mian²

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Effects of Hydrocarbons on Wind Waves in a Mine Pit Lake

2020

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The extraction and upgrading of bitumen to crude oil from the Canadian oil sands has produced large quantities of byproducts such as fluid fine tailings (FFT) and oil sands process affected water (OSPW). One reclamation strategy for these byproducts is to backfill a mined-out pit with FFT and cap it with a mix of OSPW and non-process affected water to form a pit lake. We investigated the effects of hydrocarbons, residual bitumen, on the generation and growth of wind waves, both in the laboratory and in a pit lake. In the laboratory, we compared the wind wave characteristics in the presence and absence of a hydrocarbon film. We showed that the hydrocarbon film dampens high frequency waves, resulting in a slower growing wave field dominated by lower frequency waves. These results were consistent with our field observations. Thus, it appears that the presence of a hydrocarbon film on a pit lake leads to a wind wave field dominated by longer wavelength waves that take more time to develop and grow at a slower rate. This is important since wind wave-driven mixing, in tandem with biogeochemical processes, governs water quality in mine pit lakes. Thus, this work improves understanding of the physical processes that effect water quality in mine pit lakes and enhances the ability of mine managers to conduct pit lake reclamation.

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Effects of Hydrocarbons on Wind Waves in a Mine Pit Lake

2020

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Determination of the reaction rate coefficient of sulphide mine tailings deposited under water

Awoh

Mbonimpa

Bussière

2013

Journal of Environmental Management

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The Nature and Implications of Resuspension in Subaqueous Sulfide Tailings

Cited by 2 publications

References 0 publications

Effects of Hydrocarbons on Wind Waves in a Mine Pit Lake

Effects of Hydrocarbons on Wind Waves in a Mine Pit Lake

Determination of the reaction rate coefficient of sulphide mine tailings deposited under water

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