Influence of Fe²⁺ and Fe³⁺ on the Performance and Microbial Community Composition of a MFC Inoculated with Sulfate-Reducing Sludge and Acetate as Electron Donor

Figure 4

Microbial population distribution: (a) at the order level, comparison of the different microbial groups in both MFCs; (b) at the family level in the MFC supplemented with Fe³⁺; (c) at the family level in the MFC supplemented with Fe²⁺.

(a)

(b)

(c)