Effect of periodic complete anolyte replacement on the long term performance of a four air cathodes single chamber microbial fuel cell

Tremouli, Asimina; Intzes, A.; Intzes, P.; Bebelis, S.; Lyberatos, Gérasimos

doi:10.1007/s10800-015-0842-z

Cited by 10 publications

(12 citation statements)

References 32 publications

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“…The total internal resistance for the parallel mode is lower than for the series mode, indicating the occurrence of different electrochemical processes in the two configurations. The range of internal resistances of the cells are still lower in comparison with the internal resistances of a dual-chamber MFC [14]. Two arcs are observed in all diagrams, followed by a straight line with ~45° slope at the end (Warburg element).…”

Section: Electrochemical Assessment Of the Stackmentioning

confidence: 76%

“…The cathode tubes are open to the atmosphere and no special aeration is employed. GORE-TEX ® cloth is used as a separator and as a catalyst (MnO2) support of the cathode electrocatalyst, which was MnO2 [14]. The catalytic paste activation of the cloth both as a catalyst and an electrical conductor was prepared according to the methods proposed by [19].…”

Section: Mfc Set-up and Operationmentioning

confidence: 99%

“…The stack has been constructed aiming at keeping the cost low. Thus GORE-TEX cloth was used as separator and cathode catalyst support, while MnO2 was used as catalyst [14,15]. The units were operated in continuous mode under two different connection modes (series and parallel) using fermentable household food waste (FORBI) extract as the feed [16].…”

Section: Introductionmentioning

confidence: 99%

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Performance assessment of a four-air cathode membraneless microbial fuel cell stack for wastewater treatment and energy extraction

et al. 2019

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A stack of two identical single chamber microbial fuel cells (MFCs) was assessed during using fermentable house hold extract as substrate. The design of the MFC units was based on the single chamber membrane-less technology using four cathode electrodes. The total power output was 492 mW either in series or parallel connection considering a total anolyte volume of 240 cm3. During continuous operation, the COD removal was 80% for each cell and for both operation modes (series and parallel). The electrochemical profiles provided significant information on the behaviour of the stack. During continuous operation, parallel connection is preferred over series connection, as it results to the same power output values, and COD removal but it provides lower internal resistances leading to more stable electrochemical performance behaviour.

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Section: Electrochemical Assessment Of the Stackmentioning

confidence: 76%

Section: Mfc Set-up and Operationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance assessment of a four-air cathode membraneless microbial fuel cell stack for wastewater treatment and energy extraction

et al. 2019

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“…The aim of this work is to exploit a four air–cathode single chamber MFC design, which is constructed with relatively low-cost materials [ 25 ], for bioelectricity production and HFW treatment. This study is the next step of the work [ 26 ], where two MFCs were fed with pretreated HFW, and their operation was assessed as a two-unit stack.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Different Operation Modes of Microbial Fuel Cells Treating Food Residue Biomass

2021

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Four multiple air–cathode microbial fuel cells (MFCs) were developed under the scope of using extracts from fermentable household food waste (FORBI) for the production of bioelectricity. The operation of the MFCs was assessed in batch mode, considering each cell individually. Τhe chemical oxygen demand (COD) efficiency was relatively high in all cases (> 85% for all batch cycles) while the electricity yield was 20 mJ/gCOD/L of extract solution. The four units were then electrically connected as a stack, both in series and in parallel, and were operated continuously. Approximately 62% COD consumption was obtained in continuous stack operation operated in series and 67% when operated in parallel. The electricity yield of the stack was 2.6 mJ/gCOD/L of extract solution when operated continuously in series and 0.7 mJ/gCOD/L when operated continuously in parallel.

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“…In this research a stacked MFC; consisting of two identical (four air-cathode single chamber membrane-less MFCs), was studied. The stack consists of two MFC units connected together, based on the design of the four-air cathode MFC configuration (4ACMFC) (Tremouli et al, 2015;Tremouli et al, 2016). EIS experiments were performed in order to investigate the phenomena occurring within the stack under two different electrical configurations (in series and in parallel) and their influence on the power output of the stack.…”

Section: Introductionmentioning

confidence: 99%

Operation and Electro(chemical) characterization of a microbial fuel cell stack fed with fermentable household waste extract

2019

Global NEST: The International Journal

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<p>Two identical four air-cathode single chamber membrane-less microbial fuel cells were stacked and tested under in series and in parallel electrical configurations. Fermentable household waste extract (FORBI; 0.8 g COD/L) was used as substrate, in all cases. Linear Sweep Voltammetry (LSV) was carried out for the construction of polarization curves which revealed that the highest power ouput (3.88 mW) was obtained under parallel connection as in series connection was found lower due to voltage drop phenomena. Electrochemical Impedance Spectroscopy measurements (EIS) gave an insight in the electrochemical processes occurring within the stack under both electrical connections. The contribution of the individual resistances to the overall internal resistance was defined, designating the significant role of the solution resistance (Rs) and the charge transfer resistance (RCT) under closed circuit conditions.</p>

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Effect of periodic complete anolyte replacement on the long term performance of a four air cathodes single chamber microbial fuel cell

Cited by 10 publications

References 32 publications

Performance assessment of a four-air cathode membraneless microbial fuel cell stack for wastewater treatment and energy extraction

Performance assessment of a four-air cathode membraneless microbial fuel cell stack for wastewater treatment and energy extraction

Comparative Study of Different Operation Modes of Microbial Fuel Cells Treating Food Residue Biomass

Operation and Electro(chemical) characterization of a microbial fuel cell stack fed with fermentable household waste extract

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