An insight of bioelectricity production in mediator less microbial fuel cell using mesoporous Cobalt Ferrite anode

Munjal, Mehak; Tiwari, Bhumika; Lalwani, Shubra; Sharma, Meenakshi; Singh, Gurmeet; Sharma, Raj Kishore

doi:10.1016/j.ijhydene.2020.02.184

Cited by 29 publications

(5 citation statements)

References 58 publications

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“…The higher performance of CR-2 as compared to the CR-1 could be attributed to factors such as the increased surface area improving microbial colonisation, improved nutrient transfer due to enhanced porosity, enhanced extracellular electron transfer due to the capacitive bridge created by MgFe 2 O 4 nanoparticles. The multi-cation system in MgFe 2 O 4 nanoparticles act as redox couple improving the electron transfer and eventually the performance of MFC similar to that of other reported spinels in literature (Munjal et al, 2020;Khilari et al, 2015a).…”

Section: Power Output and Cod Removal In Mfcsupporting

confidence: 83%

Magnesium ferrite spinels as anode modifier for the treatment of Congo red and energy recovery in a single chambered microbial fuel cell

Khan

Anwer

Khan

et al. 2021

Journal of Hazardous Materials

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Section: Power Output and Cod Removal In Mfcsupporting

confidence: 83%

Magnesium ferrite spinels as anode modifier for the treatment of Congo red and energy recovery in a single chambered microbial fuel cell

Khan

Anwer

Khan

et al. 2021

Journal of Hazardous Materials

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“…As has been reported in some investigations, MFCs have been evaluated mainly in the treatment of domestic wastewater, with potentials between 100 and 3000 mW.m −2 reported [13], [37][38][39][40][41]. According to the results obtained in this study, microbial fuel cells are promising as an alternative to the conventional treatment of agro-industrial wastewater.…”

Section: Discussionsupporting

confidence: 69%

“…These compounds are metabolized by microorganisms in routes that release energy in the form of ions. The process is conducted for the native microbial diversity present in the substrate [39,54]. During wet coffee processing, the native microbiota is used during a stage known as the fermentation process to remove the mucilage residues from the surface of the coffee bean [2,3,33].…”

Section: Discussionmentioning

confidence: 99%

Determination of Electrogenic Potential and Removal of Organic Matter from Industrial Coffee Wastewater Using a Native Community in a Non-Conventional Microbial Fuel Cell

Erazo

Agudelo-Escobar

2023

Processes

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Microbial fuel cells (MFCs) are an alternative to conventional wastewater treatments that allow for the removal of organic matter and cogeneration of electrical energy, taking advantage of the oxidation–reduction metabolism of organic compounds conducted by microorganisms. In this study, the electrogenic potential and the capacity for the reduction of the organic matter of native microbial communities in wastewater from the wet processing of coffee were evaluated using open-cathode MFCs. To determine the electrogenic potential, a factorial experimental design was proposed in which the origin of the residual water and the source of the inoculum were evaluated as factors. The MFCs operated for 21 days in both open-circuit and closed-circuit operation modes. Voltage records, current determinations, and chemical oxygen demand (COD) analyses were used to establish the power reached in the electrochemical system and the degree of the decontamination of the wastewater. During the MFC operation, voltages from 200–400 mV and power and current densities from 300–900 mW·m−2 and 10–22 mA·m−2, respectively, were reached. The inoculum used, with a statistical significance of α < 0.05, influenced the electrogenic performance of the microbial fuel cell. The previous process of adaptation to the operational conditions of the MFCs of the native microbial community positively influenced the current generation in the system. The degradation rates reached 500–600 mg·L−1·day−1, indicating the metabolic capacity of the microbial community in the MFCs to achieve the decontamination of wastewater from the coffee agroindustry. It was shown the implementation of bioelectrochemical systems constituted a viable option for the treatment of agricultural waste in Colombia. In addition, it was observed the capacity to cogenerate electrical energy from the biotransformation of the polluting organic matter in the effluents of the coffee industry.

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“…are used to facilitate an extracellular electron transfer to the electrode . However, in mediator-less MFCs, electrochemically active bacteria ( Shewanella putrefaciens , Aeromonas hydrophili ) that are able to transfer electrons by themselves are used. ,,, The development of mediator-less MFCs thus surmounted the use of a mediator technology that utilizes costly and toxic synthetic mediators for operation.…”

Section: Electrochemical and Bio-electrochemical Systemsmentioning

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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An insight of bioelectricity production in mediator less microbial fuel cell using mesoporous Cobalt Ferrite anode

Cited by 29 publications

References 58 publications

Magnesium ferrite spinels as anode modifier for the treatment of Congo red and energy recovery in a single chambered microbial fuel cell

Magnesium ferrite spinels as anode modifier for the treatment of Congo red and energy recovery in a single chambered microbial fuel cell

Determination of Electrogenic Potential and Removal of Organic Matter from Industrial Coffee Wastewater Using a Native Community in a Non-Conventional Microbial Fuel Cell

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

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