Biofilm formation and electricity generation of a microbial fuel cell started up under different external resistances

Microbial Fuel Cells: Influence of External Resistors on Power, Current and Power Density

“…They observed that operating a MFC at lower resistances, the mass transfer or kinetic limitations during polarization lowered resulted in less steep descent of current density. Similar to previous studies, Zhang et al [22] observed that a conventional MFC with a lower external resistance showed a higher current generation after start-up. The study further observed that when operating at high external resistance that almost MFC construction Two 1.2 L containers were prepared as an anode chamber and a cathode chamber.…”

Performance and recent improvement in microbial fuel cells for simultaneous carbon and nitrogen removal: A review

“…The external resistance may also influence the MFC performance by affecting the structure of the biofilm in the anode and current generation of the MFCs. Zhang et al (2011) found biofilm with a higher external resistance tended to form a compact structure with less active biomass. This led to an increase of the maximum power density with the decrease of external resistance.…”

“…Electroactive bacteria (EAB) grown and enriched at the anode offer an opportunity for the development of an efficient and sustainable technique for production of energy. The EAB biofilm formation is influenced by anode materials, temperature, pH, and external resistance (Liu et al, 2010;Patil et al, 2010Patil et al, , 2011Zhang et al, 2011). Thus, one strategy for high power output is to enrich the EAB on the anode surface and optimize the bacteria-electrode electron transfer (Carmona Martinez et al, 2013;Venkata Mohan et al, 2014).…”

Fast Biofilm Formation and Its Role on Power Generation in Palm Oil Mill Effluent Fed Microbial Fuel Cell

“…The research group as well showed that within 30 days of enrichment of microbial community was generated electricity (0.2 mA), using organic wastewater as the fuel [13]. Recently, Zhang, Zhu, Li, Liao and Ye [14] reported that biofilm is a crucial component in MFC for electrogenesis and it required only 14 days to be completely grown up at the anode compartment. Moreover, there are some barriers which limit the practical applications of MFCs, include ionic transfer restrictions, may increase the internal electrical resistance and oxygen transfer, therefore, decrease the overall cell performance [15].…”

“…Anode potential is one of the most important factors at which the MFC is operated due to the control of theoretical energy gain for microorganisms [17]. In addition, the effect of external resistance applied to the electrical circuit also received wild attention and Zhang, Zhu, Li, Liao and Ye [14] reported that MFC performance increases with decreasing the applied external resistance [18] which may be due to the effect of the structure of the biofilm at the anode.…”