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In this paper, published in Hydromettalurgy, we investigate indirect in-situ bioleaching as an alternative mining technology for minimizing waste production, environmental impact, and chemical consumption. Laboratory column experiments are described and their results are used to develop a one-dimensional reactive transport model based on PhreeqC software. This model is then adapted to in-situ conditions by considering the preferential flow of fluids through natural or artificial fractures of enhanced hydraulic conductivity.

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Laurent, G., Izart, C., Lechenard, B., Golfier, F., Marion, P., Collon, P., … Filippov, L. (2019). Numerical modelling of column experiments to investigate in-situ bioleaching as an alternative mining technology. Hydrometallurgy, 188, 272–290.