Microbial community structure of anode electrodes in microbial fuel cells and microbial electrolysis cells

Almatouq, Abdullah; Babatunde, Akintunde; Khajah, Mishari; Webster, Gordon; Alfodari, Mohammad

doi:10.1016/j.jwpe.2020.101140

Cited by 84 publications

(36 citation statements)

References 54 publications

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“…Furthermore, Geobacter spp., Rhodoferax ferrireducens, Aeromonas hydrophila, Clostridium butyricum, Shewanella spp., E. coli etc. are commonly reported microbes in MFCs [138]. The microbes form a biofilm around the anode, and transfer the electrons by using different mechanism such as long-range via conductive pili, short-range mechanisms through redox-active molecules and electron transfer through shuttling molecules, as shown in Figure 2.…”

Section: Mechanism Of Electricity Generation and Pollutant Removal In Mfcsmentioning

confidence: 99%

Outlook on the Role of Microbial Fuel Cells in Remediation of Environmental Pollutants with Electricity Generation

et al. 2020

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A wide variety of pollutants are discharged into water bodies like lakes, rivers, canal, etc. due to the growing world population, industrial development, depletion of water resources, improper disposal of agricultural and native wastes. Water pollution is becoming a severe problem for the whole world from small villages to big cities. The toxic metals and organic dyes pollutants are considered as significant contaminants that cause severe hazards to human beings and aquatic life. The microbial fuel cell (MFC) is the most promising, eco-friendly, and emerging technique. In this technique, microorganisms play an important role in bioremediation of water pollutants simultaneously generating an electric current. In this review, a new approach based on microbial fuel cells for bioremediation of organic dyes and toxic metals has been summarized. This technique offers an alternative with great potential in the field of wastewater treatment. Finally, their applications are discussed to explore the research gaps for future research direction. From a literature survey of more than 170 recent papers, it is evident that MFCs have demonstrated outstanding removal capabilities for various pollutants.

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Section: Mechanism Of Electricity Generation and Pollutant Removal In Mfcsmentioning

confidence: 99%

Outlook on the Role of Microbial Fuel Cells in Remediation of Environmental Pollutants with Electricity Generation

et al. 2020

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“…Organisms like Nitrosomonas, Nitratireductor and Acidovorax spp.contributed to nitrogen removal. In another study, in the MFCs fed with wastewaters rich in nitrogen concentration, Thauera was reported to degrade the organic compounds and augment the nitrogen removal [60].…”

Section: Removal Of Nitrogenmentioning

confidence: 99%

“…It was reported that Deltaproteobacteria species are responsible for the generation of electricity. Further, the bacterial organisms such as Desulfovibrio, Butyricicoccus, Petrimonas and Propionivibrio dominate the anodic biofilm [60] and provide twin benefits of bioelectricity generation and organic matter removal.…”

Section: Organic Removalmentioning

confidence: 99%

A Critical Review on Microbial Fuel Cells Technology: Perspectives on Wastewater Treatment

Venkatramanan¹,

Shah²,

Prasad³

2021

TOBIOTJ

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Increasing demand for renewable energy in the backdrop of global change calls for waste valorization and circular economy strategies. Public health concerns and demand for clean energy provide impetus to the development of wastewater based MFC. Wastewater treatment and simultaneous generation of bioelectricity offer a myriad of environmental benefits. Nevertheless, it is pertinent to know the challenges with the microbial fuel cell (MFC) technology to upscale the wastewater based MFC. This paper attempts to critically analyse the processes, application, challenges and opportunities of wastewater based MFCs. A literature survey was conducted to find out the advances in the field of wastewater based MFCs and the focus was to decipher the challenges to the implementation of wastewater based MFCs. Recent developments in MFC technology have improved the power output and studies show that a diverse group of organic-rich wastewater can be treated with MFCs. The developments include improvements in MFC configuration, development of biocatalysts and biocathode, anodic biofilm formation, microbial community interactions, and progress in the organic and pollutant removal. Nevertheless, the MFC technology is replete with challenges about the organic removal rate, power density, electrode performance limiting factors, economic viability, high initial and maintenance cost and difficulty to maintain the exoelectrogens activity in a complex wastewater environment. Opportunities exist in scaling up of MFCs, integration with other wastewater treatment methods and measures to minimise the operating costs. MFCs have the potential to increase the resilience capacity of the sustainable wastewater treatment plant.

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“…Desulfovibrio, Butyricicoccus, Petrimonas, and Propionivibrio are observed to be dominated in the anodic biofilm of MFCs, whereas Desulfovibrio, Acidaminococcus, Desulfocapsa, and Acetobacterium dominate in the MECs anodic biofilm. 99 The observed variation in the functional microbial communities in MFCs and MECs is attributed to the difference in their operating conditions. 94,96 MECs can be classified into double-chambered or singlechambered based on the structure of the system.…”

Section: Inhibitionmentioning

confidence: 99%

Tuning of Electrode Surface for Enhanced Bacterial Adhesion and Reactions: A Review on Recent Approaches

Ratheesh

Elias

Shibli

2021

ACS Appl. Bio Mater.

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The study of bacterial adhesion and its consequences has great significance in different fields such as marine science, renewable energy sectors, soil and plant ecology, food industry, and the biomedical field. Generally, the adverse effects of microbial surface interactions have attained wide visibility. However, herein, we present distinct approaches to highlight the beneficial aspects of microbial surface interactions for various applications rather than deal with the conventional negative aspects or prevention strategies. The surface microbial reactions can be tuned for useful biochemical or bio-electrochemical applications, which are otherwise unattainable through conventional routes. In this context, the present review is a comprehensive approach to highlight the basic principles and signature parameters that are responsible for the useful microbial−electrode interactions. It also proposes various surface tuning strategies, which are useful for tuning the electrode characteristics particularly suitable for the enhanced bacterial adhesion and reactions. The tuning of surface characteristics of electrodes is discussed with a special reference to the Microbial Fuel Cell as an example.

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Microbial community structure of anode electrodes in microbial fuel cells and microbial electrolysis cells

Cited by 84 publications

References 54 publications

Outlook on the Role of Microbial Fuel Cells in Remediation of Environmental Pollutants with Electricity Generation

Outlook on the Role of Microbial Fuel Cells in Remediation of Environmental Pollutants with Electricity Generation

A Critical Review on Microbial Fuel Cells Technology: Perspectives on Wastewater Treatment

Tuning of Electrode Surface for Enhanced Bacterial Adhesion and Reactions: A Review on Recent Approaches

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