Microbial Fuel Cells for Direct Electrical Energy Recovery from Urban Wastewaters

Figure 1

MFC prototype used in laboratory: (1) active section of the plant, where electrodes are situated; (2) sampling port; (3) discharge tap, equipped with thermostat; (4) recycle pump; (5) volumetric flow meter; (6) spectrophotometric probe; (7) ball valve for flux tuning.