Comparison of methods for the estimation of pyrite oxidation rate in a waste rock pile at Mine Doyon, Quebec, Canada

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Authors	ŠRÁČEK Ondřej GÉLINAS Pierre LEFEBVRE René NICHOLSON Ron V.
Year of publication	2006
Type	Article in Periodical
Magazine / Source	Journal of Geochemical Exploration
MU Faculty or unit	Faculty of Science
Citation
Field	Water pollution and control
Keywords	Waste rock; pyrite oxidation rate; temperature and oxygen concentration profiles; pyrite mass balance; oxygen consumption method;
Description	Several methods for estimation of pyrite oxidation rate (POR) were compared in waste rock pile at Mine Doyon site, Quebec, Canada. At this site, transport of oxygen occurs by both convection and diffusion. Large scale methods like temperature and oxygen profiles and pyrite mass balance gave similar results like small scale oxygen consumption method in laboratory. This means that at a site with convective oxygen transport even small scale methods may give satisfactory POR results.
Related projects:	Geological Processes and their Environmental Impact - Contact of the Variscides and Alpides