Oxidation of glucose by syntrophic association between Geobacter and hydrogenotrophic methanogens in microbial fuel cell

Oyiwona, Godwin E.; Ogbonna, James C.; Anyanwu, Chukwudi Uzoma; Ishizaki, So; Kimura, Zen‐ichiro; Okabe, Satoshi

doi:10.1007/s10529-016-2247-4

Cited by 12 publications

(3 citation statements)

References 16 publications

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“…On the other hand, oxidation of acetate results in the production of higher amount of CO 2 in the anodic chamber. 45 On the other hand, the concentration of oxygen in the cathodic chamber was observed to decrease as a result of increment in the current density (see Fig. 7b).…”

Section: Resultsmentioning

confidence: 89%

A Novel Computational Platform for Steady-State and Dynamic Simulation of Dual-Chambered Microbial Fuel Cell

Naseer,

Zaidi,

Dutta

et al. 2023

J. Electrochem. Soc.

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Microbial fuel cell (MFC) is attractive for research community as a promising bioelectricity production technology using organic waste. However, due to low performance and erroneous reproducibility and replicability, MFC lacks industrial application. Additionally, the nonlinear dynamic behavior of MFC, along with the involvement of electrochemistry and biology in mathematical models, makes it difficult to comprehend and simulate. To overcome these barriers, this study provides a simulation platform for conducting theoretical studies using a fundamental mathematical model of MFC. This novel Simulink/MATLAB model is based on mass balance across both compartments of MFC, and provides power density as a function of a wide range of performance-affecting parameters. Model validation depicts only 2%–10% error. This model can provide a stepping stone to perform theoretical optimization and industrial application studies in future. By varying the values of different parameters; studies may be performed to spot optimum values of the most sensitive parameters. Therefore, using the proposed tool paves the path for further improvements in design, cost effectiveness and performance efficiency that ultimately promises up-scaling of MFCs as a renewable and alternative energy resource.

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Section: Resultsmentioning

confidence: 89%

A Novel Computational Platform for Steady-State and Dynamic Simulation of Dual-Chambered Microbial Fuel Cell

Naseer,

Zaidi,

Dutta

et al. 2023

J. Electrochem. Soc.

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“…2b), showing that CCE-MFCs generated significantly higher methane concentration suggesting prolific activities of archaea on the anodes. In our recent study, methane gas production was found to be directly proportional to methanogenic population and methanogens identified as electron scavengers (Oyiwona et al 2016). A positive correlation (r 2 = 0.95, p < 0.05) exists between the number of methanogens and the daily methane production (Ding et al 2012).…”

Section: Evaluation Of Methane Production In Mfcsmentioning

confidence: 86%

Electricity generation potential of poultry droppings wastewater in microbial fuel cell using rice husk charcoal electrodes

Oyiwona

Ogbonna

Anyanwu

et al. 2018

Bioresour. Bioprocess.

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Background: Poultry droppings from poultry farms and rice husks obtained from rice milling process are generally considered as wastes and discarded in Nigeria. Although many studies have shown that microbial fuel cells (MFCs) can generate electricity from organic wastes, little or no study have examined MFCs for generating electricity from poultry droppings and rice husk as electrode material. Findings: Laboratory-scale double-chamber MFCs were inoculated with concentrations of poultry droppings wastewater and supplied with rice husk charcoal as anode and cathode electrodes for electricity generation. Power outputs and dissolved organic carbon (DOC) removal efficiencies were compared between MFCs using rice husk charcoal (RHCE) as electrode and those using carbon cloth (CCE) as electrodes. The RHCE-MFC 2 containing 477 mg L −1 dissolved organic carbon produced a volumetric power density of 6.9 ± 3.1 W m −3 which was higher than the control and the CCE-MFCs by a factor of 2 and achieved at DOC removal efficiencies of 40 ± 1.2%. Conclusions: The results suggest that poultry droppings wastewater is a feasible feedstock for generating electricity in MFCs. The findings also suggest that rice husk charcoal is a potentially useful electrode material in MFCs.

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“…Various types of bio-energies have been extensively investigated as alternatives to fossil fuels (Ogbonna, 2013;. These include bioethanol (Ogbonna et al, 2001;, 2013Ogbonna andOkoli, 2010, 2013), biogas (Onwosi and Okereke, 2009;Okeh et al, 2014), microbial fuel cells (Oyiwona et al, 2016(Oyiwona et al, , 2018 and biodiesel . Biodiesel is a good alternative to fossil fuels and it has most of the required positive attributes of biofuel.…”

Section: Introductionmentioning

confidence: 99%

Lipase in biodiesel production

Chioke¹,

Ogbonna²,

Onwusi³

et al. 2018

Afr. J. Biochem. Res.

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Although fossil fuels have been serving mankind for several centuries, their exploration and use bring about several environmental problems. Besides, fossil fuels are neither renewable nor sustainable. There is therefore a need to search for renewable alternatives which are sustainable and environmentally friendly. Biodiesel, chemically known as methyl ester, is a renewable and sustainable biofuel used to run diesel engines and it is mainly produced by transesterification through either chemical or enzymatic catalysis. Enzyme catalyzed transesterification has several advantages over chemical catalysis. However, enzyme production and purification are expensive and the inability to recycle these enzymes has limited their application in large scale bioconversion processes. This review highlights some of the strategies employed to reduce the cost of lipase catalzsed transesterificaion, some important feed stocks used in biodiesel production, methods of processing biodiesel, and advantages of enzymatic transesterification over chemical catalyzed transesterification. The properties and sources of lipase enzymes used in enzyme catalyzed transesterfication are also highlighted and discussed. Factors that affect enzyme catalyzed transesterification are also discussed. It also highlights the possible methods of solving the problems encountered in enzymatic transesterification.

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Oxidation of glucose by syntrophic association between Geobacter and hydrogenotrophic methanogens in microbial fuel cell

Abstract: Reduction of H partial pressure by archaea is an efficient approach in improving power output in a glucose-fed MFC system using Geobacter sp. as an inoculum.

Cited by 12 publications

References 16 publications

A Novel Computational Platform for Steady-State and Dynamic Simulation of Dual-Chambered Microbial Fuel Cell

A Novel Computational Platform for Steady-State and Dynamic Simulation of Dual-Chambered Microbial Fuel Cell

Electricity generation potential of poultry droppings wastewater in microbial fuel cell using rice husk charcoal electrodes

Lipase in biodiesel production

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