M. Benzaazoua, B. Bussière
Five sulfide mine tailings coming from the Joutel mine tailing ponds (Quebec, Canada) were tested by the humidity cell test (30 to 52 cycles duration) and the column test (11 to 12 cycles duration). The objectives of this study were twofold: the determination of the tailings acid generation potential for site reclamation, and the kinetic test comparison for understanding the tailings geochemical behavior under different test conditions. The samples used had a wide diversity in terms of acid-generation potential, particle size distribution, and parameters influencing reaction rates. Leachates produced remained at a near neutral pH for the duration of the tests. The evolution of the main elements involved in the dissolution processes demonstrated neutralization by carbonates as a response to the acid generated by sulfide oxidation. The depletion rates given by sulfates were higher for the humidity cell test compared to those obtained from the column tests, supporting the notion that the humidity cell test is more severe. However, neutralization patterns revealed similar geochemical behavior of the tailings is consistent at near neutral pH across both tests. This study also highlighted that the acid-generation potential of the Joutel tailings could be compared to static test results to reduce uncertainty regarding the studied tailings.
@article{fffa4fd9-97e4-499f-b369-be1628084594,
title={Kinetic tests comparison and interpretat},
author={M. Benzaazoua and B. Bussière},
year={2026},
language={en}
}TY - JOUR TI - Kinetic tests comparison and interpretat AU - M. Benzaazoua AU - B. Bussière PY - 2026 LA - en ER -
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