Figure 4. Anode polarization curves in the primary clarifier effluent-fed MFC determined by linear sweep voltammetry.

The anode polarization curves during the enrichment process of electricity generating mixed community (A). The anode polarization curves during a single batch operation from day 139 to day 151, current generations are shown in the inset (B). Cathode polarization curve (black line) was determined on day 108.