Effect of different substrates on the performance, bacterial diversity, and bacterial viability in microbial fuel cells

Chae, Kyu-Jung; Choi, Mi‐Jin; Lee, Jin Wook; Kim, Kyoung-Yeol; Kim, In Soo

doi:10.1016/j.biortech.2009.02.065

Cited by 602 publications

(271 citation statements)

References 32 publications

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“…The MFC technology is a promising method of transforming bacterial metabolic energy into electricity (Chae et al, 2009). Traditional MFCs consist of two chambers in which electrodes are placed while a membrane separates the chambers from each other (Rahimnejad et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Effect of various carbon-based cathode electrodes on the performance of microbial fuel cell

Mashkour¹,

Rahimnejad²

2015

Biofuel Res. J.

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Aeration in the cathode compartment was found effective on power generation in MFCs. Microbial fuel cell (MFC) is a prospective technology capable of purifying different types of wastewater while converting its chemical energy into electrical energy using bacteria as active biocatalysts. Electrode materials play an important role in the MFC system. In the present work, different carbon-based materials were studied as electrode and the effect of dissolved oxygen (aeration) in the cathode compartment using actual wastewater was also investigated. More specifically, the effect of different electrode materials such as graphite, carbon cloth, carbon paper (CP), and carbon nanotube platinum (CNT/Pt)-coated CP on the performance of a dual-chambered MFC was studied. Based on the results obtained, the CNT/Pt-coated CP was revealed as the best cathode electrode capable of producing the highest current density (82.38 mA/m 2 ) and maximum power density (16.26 mW/m 2 ) in the investigated MFC system. Moreover, aeration was found effective by increasing power density by two folds from 0.93 to 1.84 mW/m 2 using graphite as the model cathode electrode. ARTICLE INFO ABSTRACT Mashkour and Rahimnejad / Biofuel Research Journal 8 (2015) 296-300Please cite this article as: Mashkour M., Rahimnejad M. Effect of various carbon-based cathode electrodes on the performance of microbial fuel cell.

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Section: Introductionmentioning

confidence: 99%

Effect of various carbon-based cathode electrodes on the performance of microbial fuel cell

Mashkour¹,

Rahimnejad²

2015

Biofuel Res. J.

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“…Continuous power generation by MFCs is largely dependent on its reliance on biofilm formation by the microbes to facilitate transfer of electrons from the biofilm to the anode for which the development of various microbial catalysts need to be found and employed (Angenent et al 2004). Although, several microbial strains such as Geobacter and Shewanella have been introduced in MFC technology for their ability to self-mediate the transfer of electrons (Chae et al 2009;Bond & Lovley 2003), other microbes employed involve assistance from electron mediators which inadvertently decrease the efficiency of the MFC system. The pre-requisites involved in MFC technology are expensive and fragile and do present a question about execution of these materials on a large scale.…”

Section: Advantages and Disadvantagesmentioning

confidence: 99%

Microbial fuel cells in bioelectricity production

Tharali

Sain

Osborne

2016

Frontiers in Life Science

111

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Bioelectricity production involves generation of electricity by anaerobic digestion of organic substrates by microbes. A microbial fuel cell (MFC) is a device that converts chemical energy released as a result of oxidation of complex organic carbon sources which are utilized as substrates by microorganisms to produce electrical energy thereby proving to be an efficient means of sustainable energy production. The electrons released due to the microbial metabolism are captured to maintain a constant power density, without an effective carbon emission in the ecosystem. The various parameters involved in MFC technology toward power generation include maximum power density, coulombic efficiencies and sometimes chemical oxygen demand removal rate which evaluates the effectiveness of the device. Application of microbes toward bioremediation at the same time resulting in generation of electricity makes MFC technology a highly advantageous proposition which can be applied in various sectors of industrial, municipal and agricultural Waste Management. Although the efficiency of MFCs in power generation initially was low, recent modifications in the design, components and working have enhanced the power output to a significant level thereby enabling application of MFCs in various fields including wastewater treatment, biosensors and bioremediation. The following review provides an outline about the components involved, working, modifications and applications of MFC technology for various research and industrial objectives. ARTICLE HISTORY

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“…The samples for SEM analysis were prepared by a method described by Chae, Choi, Lee, Kim and Kim [23]. Parts of the CC were cut and removed from the anode chamber then rinsed with a sterile medium, and immediately fixed with an anaerobic solution of 2% glutaraldehyde and 1% formaldehyde.…”

Section: Biofilm Examination By Semmentioning

confidence: 99%

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

Khan

Baranitharan

Prasad

et al. 2016

MATEC Web of Conferences

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Abstract. In the present study, fast formation and characterization of biofilm and its role on power generation in the microbial fuel cell (MFC) were investigated and the biofilm formation was also correlated with electrochemical behavior of the MFC. MFC was operated with palm oil mill effluent as substrate and carbon cloth as electrode. A biofilm comprising electrochemically active bacteria on the anode surface showed crucial effect to enhance the performance of the MFC. Infrared spectroscopy and thermogravimetric analysis confirmed the presence of biofilm and scanning electron microscopy examined a biofilm and microbial clumps on electrode surface. The current density was directly dependent on the biofilm growth and increased significantly during the initial growth. Electrochemical impedance spectroscopy was done to monitor the progress of the anode colonization by the microorganisms in the MFC. The findings of this study demonstrated that biofilm formation facilitated electron transport as well as decreased the charge transfer resistance of the anode and thus increased the power generation in the cell.

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Effect of different substrates on the performance, bacterial diversity, and bacterial viability in microbial fuel cells

Cited by 602 publications

References 32 publications

Effect of various carbon-based cathode electrodes on the performance of microbial fuel cell

Effect of various carbon-based cathode electrodes on the performance of microbial fuel cell

Microbial fuel cells in bioelectricity production

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

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