Figure 2
From: Mathematical modeling of metal recovery from E-waste using a dark-fermentation-leaching process

IC2—Evolution over time of measured and simulated values of pH (a), glucose \(S_{su}\) (a), butyric acid \(S_{bu}\) (b), acetic acid \(S_{ac}\) (c) concentrations, cumulative hydrogen production \(V_{H_2}\) (d), and concentration of metal in solution \(M_{liq}\) (e).