Figure 8

Comparison between experimental data and REACT model: aqueous Fe (squares) and As (triangles) concentrations over time during CP5 (filled symbols) and AD5 (empty symbols) experiments. Monod kinetics was used to model Fe (filled line) and As (dotted line). Eh was computed by the model from simulated redox couples Fe³⁺/Fe²⁺, H₂AsO₄^-/H₃AsO₃°, HCO₃^-/Acetate.