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2020-02-01

NorthWind Land Resources Inc.

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...

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...

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...

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...

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...

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...

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,...

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...

2003-01-01

Lindvall, M., Dold, B.

Western Europe is a dynamic region, with an emerging co-operation between the individual nations both politically, economically, technically and scientifically. The European Union, today with 15 member States and with a range of central European States applying for membership, is a catalyst for...

2003

Williams, D. J., Jeffrey, J., Gilbert, L., Wilson, G. W., Panidis, C., Perry, B.

Prior to the commencement of mining, the acid rock drainage (ARD) potential of the waste rock to be produced by an open cut mining operation is assessed by a variety of techniques carried out on drill-hole samples. These include, among others, acid base accounting (ABA), net acid generation (NAG)...