Advanced Aqueous Geochemical Numerical Modelling

Join us in this webinar as we take a deep dive into the technical aspects and applications of geochemical models to the mine industry.

Aqueous geochemical numerical modelling is a powerful tool with a wide range of applications in environmental studies. It is particularly useful for predicting acid/neutral mine drainage composition, especially when applied in conjunction with laboratory testing. The potential of simulating different scenarios and evaluating uncertainties makes numerical modelling an integral part in the decision-making process of wastewater management in mine sites. In this session, we will dive into the main aspects involved in the development of advanced aqueous geochemical numerical models using PHREEQC. You will learn about how these models may be applied to drainage composition prediction and other uses relevant to the mining industry. Different modelling strategies will be discussed.

Key Insights:
· Discover how geochemical numerical modelling may be applied to predict chemical composition of effluents, verify conceptual hypotheses and transpose experimental results to field scale.
· Learn about different modelling approaches, their uses, and limitations.
· Explore the different criteria considered in developing these models.
· Review technical aspects relevant to numerical modelling in the mining industry: Thermodynamic equilibrium versus kinetics, gas diffusion, redox reaction, water-rock interactions and so forth.
· Comprehend the differences between one-dimensional transport modelling (using solely PHREEQC) and 2D and 3D transport modelling at scale (using FEFLOW coupled with PHREEQC).

Presentors: Mariana Werle, M.Sc. and Martin Draeger, B.E.S

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