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The pattern of micro-electricity production of simple two-chamber microbial fuel cells (MFC) was monitored in this study. Piggery wastewater and anaerobic sludge served as fuel and inocula for the MFC, respectively. The output power, including voltage and current generation, of triplicate MFCs was measured using an on-line monitoring system. The ma...
Contexts in source publication
Context 1
... MFCs were studied by recording the voltage across an external load capacitor ( Figure 1). Based on data provided by the manufacturer, the equivalent series resistance (ESR) for the DC signal is 50 mΩ while the impedance of the 10F capacitor (NESSCAP, ESHSR-0010C0-002R7) is < 1 Ω for the input AC signal with frequency >0.1 Hz. ...
Context 2
... MFCs were studied by recording the voltage across an external load capacitor ( Figure 1). Based on data provided by the manufacturer, the equivalent series resistance (ESR) for the DC signal is 50 m while the impedance of the 10F capacitor (NESSCAP, ESHSR-0010C0-002R7) is < 1 for the input AC signal with frequency >0.1 Hz. ...
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... the potential drop can be measured with time using a voltmeter. To minimize the load impedance and maximize the output power for the MFCs in this study, a capacitor of ten farads was used as charge storage of the cell (Figure 1), which also monitored the electron-transfer mechanism in MFCs without any cell perturbation. Due to the high capacitance of the capacitor and small external load impedance, this passive real-time charge storage monitoring system could be adopted to the performance-testing platform. ...
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... voltage data were obtained by multi-meters (Mobile-Logger DMM, BM510 series; Brymen Technology Co., New Taipei City, Taiwan) and stored in computers via RS232 adaptors (RS232C Interface Kit, Brymen Technology Co., Taiwan). Data were collected at 1-s intervals and saved periodically ( Figure 1). Energies 2019, 12, x FOR PEER REVIEW 5 of 15 the same time, the number of output charges or electrons can be calculated from the potential drop or voltage across the capacitor over time. ...
Context 5
... the potential drop can be measured with time using a voltmeter. To minimize the load impedance and maximize the output power for the MFCs in this study, a capacitor of ten farads was used as charge storage of the cell (Figure 1), which also monitored the electron-transfer mechanism in MFCs without any cell perturbation. Due to the high capacitance of the capacitor and small external load impedance, this passive real-time charge storage monitoring system could be adopted to the performance-testing platform. ...
Context 6
... voltage data were obtained by multi-meters (Mobile-Logger DMM, BM510 series; Brymen Technology Co., New Taipei City, Taiwan) and stored in computers via RS232 adaptors (RS232C Interface Kit, Brymen Technology Co., Taiwan). Data were collected at 1-s intervals and saved periodically (Figure 1). 2019, 12, x FOR PEER REVIEW 5 of 15 the same time, the number of output charges or electrons can be calculated from the potential drop or voltage across the capacitor over time. ...
Context 7
... the potential drop can be measured with time using a voltmeter. To minimize the load impedance and maximize the output power for the MFCs in this study, a capacitor of ten farads was used as charge storage of the cell (Figure 1), which also monitored the electron-transfer mechanism in MFCs without any cell perturbation. Due to the high capacitance of the capacitor and small external load impedance, this passive real-time charge storage monitoring system could be adopted to the performance-testing platform. ...
Context 8
... voltage data were obtained by multi-meters (Mobile-Logger DMM, BM510 series; Brymen Technology Co., New Taipei City, Taiwan) and stored in computers via RS232 adaptors (RS232C Interface Kit, Brymen Technology Co., Taiwan). Data were collected at 1-s intervals and saved periodically (Figure 1). ...
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One of the most advanced systems of microbial fuel cells is the benthic microbial fuel cell (BMFC). Despite several developments, this strategy still has a number of significant flaws, such as instable organic substrate. Waste material (sugarcane) is used as a substrate in this work to address the organic substrate instability. The process was oper...
Citations
... It is also to mention that the cathode potential can be also affected by the value of EEL since the resistance of the circuit -and thus, the 'rate' of electron passage to the cathode -may affect the rate of the cathode reaction, which may be a matter of concern especially in a cathode reaction-limited MFC operation [76]. Nevertheless, it was shown in previous work that in a well-designed cathode half-cell, this effect is minor compared to EEL's influence on the anode potential [61]. ...
The scope of the current review is to discuss and evaluate the role of the external electrical load/resistor (EEL) on the overall behavior and functional properties of microbial fuel cells (MFCs). In this work, a comprehensive analysis is made by considering various levels of MFC architecture, such as electric and energy harvesting efficiency, anode electrode potential shifts, electro-active biofilm formation, cell metabolism and extracellular electron transfer mechanisms, as a function of the EEL and its control strategies. It is outlined that taking the regulation of EEL into account at MFC optimization is highly beneficial, and in order to support this step, in this review, a variety of guidelines are collected and analyzed.
... In 2019, the use of MFCs with real wastewater was tackled by Su et al. [146] and Santoro et al. [147]. ...
... They were connected to a charge capacitor and studied regarding current decomposition in the frequency domain, by using Fast Fourier Transform (FFT). The retrieved results showed that the MFC current has AC and DC contributions, which can be associated with the exoelectrogen community behavior [146]. ...
Environmental concerns gather considerable academic research and private investment, namely when addressing water and energy. Wastewater treatment and reuse have become a standard practice across the globe. In Europe, this topic has been addressed through the European Commission policy for the environment. Microbial Fuel Cells are a useful technology for wastewater treatment. They can be used for resource scavenging and energy production. Their power output still can't counterbalance, per se, the energy expenditure on wastewater treatment stations, but it can help provide autonomy for physical, chemical, and biochemical measurements in wastewater. The true energetic potential, however, has not been fully exploited, since significant energy losses are still associated with these systems, decreasing the efficiency of this technology. As works with microbial fuel cells grow in number and diversity, an adequate review of the strategies used to apply these devices as power sources is needed.
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... The research on MFC applications to real wastewater substrates or even on adapted WWTP has been increasing, giving a clear indication of the technology readiness for further investment and research. In 2019,Su et al. (2019) andSantoro et al. (2019) addressed the performance of MFCs with real wastewater: while Su et al. used piggery wastewater, Santoro et al. researched a particular type of stratified MFC to use urine substrate. As the WWTP incorporation is concerned, the most recent work was by Xu et al. ...
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