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1994
In the summer of 1990, research plots were designed and constructed on the Syncrude Canada Ltd., mine site at Mildred lake to test the effect of thickness and quality of replaced soil over tailings sand on the performance of trees and shrubs. Treatments included three cap thicknesses (70, 50 and...
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1994
This report outlines a conceptual and analytical framework for quantifying risks to terrestrial wildlife that might be exposed to solid-phase materials potentially associated with oil sands reclamation. The initial phase of the assessment involved screening the soil-tailings against published...
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1993
Koverny, L., Bork, P., Johnson, R. L., James, W. H., Allen, E. A. D.
The dewatering of oil sands sludge is a major technological, economical, and environmental challenge to the oil sands industry of northeastern Alberta. Sludge is a mixture of small mineral particles (less than 44 µm in diameter), residual bitumen from the extraction process, and water. Sludge...
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Catalogue of Technologies for Reducing the Environmental Impact of Fine Tailings from Oil Sands Processing
Download1993
Rose, D. E., Taplin, D., Fuhr, B. J.
A catalogue containing 22 technologies for reducing the environmental impact of fine tailings derived from oil sand processing has been assembled. The simple format which was developed as part of this study consisted of a spreadsheet outline of the technologies and a process summary for each...
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1992
Treatment plots were established on the Syncrude Canada Ltd. Oil sands mine site to test the effect of a variety of mixtures of peat, mineral overburden, and tailings sand on establishment of an initial vegetation cover and productivity of planted trees and shrubs. Treatments consisted of nine...
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1990
Vegetation cover data, collected annually in reclaimed areas of the Syncrude and Suncor mine sites, have been analyzed to determine the effect of reclamation methods and site factors on species composition and rate of natural plant invasion. Sites monitored include reclaimed tailings sand and...
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The Effect of Freezing and Thawing on the Dewatering of Oil Sands Sludge. IN: Proceedings of the Conference Reclamation, A Global Perspective
Download1989
Bork, P., Layte, P., Johnson, R. L.
Oil sands processing operations in northeastern Alberta generate 25 x 106 m3 of water-fines mixtures (sludge) per year. The fines settle in several weeks but will not consolidate to more than 35% solids, even over centuries. Freezing and thawing the oil sands sludge led to rapid dewatering. ...