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2020-02-01
NorthWind Land Resources Inc. (NorthWind) was commissioned by Syncrude Canada Ltd. (Syncrude) to complete soil sampling and analysis for salinity and petroleum hydrocarbon (PHC) profiling and an assessment of moisture conditions within the East Valley Centrifuge Cake Cell (EV Cake Cell). Field...
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2003
Ebenå, G., Ferrow, E., Fuchs, M., Herbert, R., Malmström, M. E., Salmon, S. U.
The study of microbial sulfide oxidation and oxidation rates of tailings requires the use of sterile control samples in laboratory experiments for comparison purposes. The need for sterile tailings sand is also apparent in the study of microbial communities and processes. This study compares six...
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A laboratory study of long-term effects of mine depressurization groundwater on fish and invertebrates
Download1980-01-01
McCart, P. J., Tsui, P. T. P., McMahon, B. R., McCart, J. V.
This study was conducted to determine long-term toxic effects, on selected species of fish and invertebrates, of mine depressurization at concentrations non-lethal in acute toxicity tests. The study also includes chronic toxicity experiments, studies of sublethal effects of groundwater, and a...
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2003
Wickland, B., Wilson, G. W., Johnson, G.
The settlement and drainage behaviour of co-mix, or mixtures of waste rock and tailings, are examined in a column study. Three co-mix profiles were observed for settlement, drainage, and pore water pressure response. A fourth profile with waste rock and no tailings was also observed for...
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2003
Castendyk, D., Mauk, J. L., Brodie, K., Simpson, M.
Subaqueous water-rock reactions that occur at the pit wall/lake water interface can affect the pH of pit lakes. Many pit lake water chemistry models neglect subaqueous reactions, which may create inaccurate predictions over time. A mineral quantification method is presented that defines the wall...
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2003
Tuttle, M. L. W., Briggs, P. H., Berry, C. J.
Assessment of metal mobility, acid rock drainage production, and toxic effects from weathering of mineralised materials (ie mine-waste piles and outcropping alteration/ore zones) is key in evaluating and mitigating metal mining sites. Many metal- and acid-generating materials at these sites are...
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2003-01-01
Coeppicus, S., Bauer, C., Grassmann, J., Ruhrberg, M., Peiffer, S.
Within the context of acid mine drainage (AMD) associated with mining activities worldwide there has been a tremendous research effort to determine the extent of AMD and assess the influencing factors controlling this process. However, the majority of the current approaches focus on local and...
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2003
Olson, G. J., Clark, T. R., Mudder, T. I., Logsdon, M.
Oxidation of pyrite and other metal sulfides is accelerated by the activity of acidophilic iron- and sulfur-oxidising microorganisms. The ideal biocide for controlling biocatalysed acid rock drainage (ARD) would be inexpensive, inhibitory toward sulfide-oxidising bacteria at low concentrations,...
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A preliminary study of chemical and microbial characteristics of the Athabasca River in the Athabasca oil sands area of northeastern Alberta
Download1979
Costerton, J. W., Nix, P. G., Ventullo, R., Coutts, R. T.
A literature review and evaluation of methods used to determine rates of bacterial uptake (heterotrophic assimilation) of organic substrates in fresh water systems was undertaken. The uptake of a \"universal\" substrate - radiolabelled glutamic acid - was determined in order to assess the effects...
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2003
Verburg, R., Johnson, B., Fordham, M., Logsdon, M.
The underground Neves Corvo copper-tin mine in southern Portugal currently disposes of its tailings in a ‘traditional’ wet tailings impoundment. With the development of new technologies for preparation and transport of thickened tailings or paste, alternative tailings disposal options have become...