Microbial fuel cells: a sustainable solution for bioelectricity generation and wastewater treatment

Singh, Har Mohan; Pathak, Atin K.; Chopra, K.; Tyagi, V.V.; Anand, S.; Kothari, Richa

doi:10.1080/17597269.2017.1413860

Cited by 93 publications

(32 citation statements)

References 155 publications

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“…A typical CW‐MFC consists of two electrodes, one an anode (anodic chamber) and the other as cathode (cathodic chamber) separated by proton exchange membranes, fibrous materials, or lands (Figure ). In the anodic chamber occur the biochemical reactions where the electroactive bacteria developed over anodic material take the root exudates matter released by the rhizodeposition from aquatic plants to produce electrons and protons . The protons are transferred to the cathodic chamber through the separators.…”

Section: Cw‐mfc Systemmentioning

confidence: 99%

“…Many of the new CW‐MFC designs are based on membraneless configurations, since the cost of membranes affects the scaling of these bioelectrochemical systems . Materials such as fiberglass, nylon, ceramic, calcium bentonite membrane, biodegradable bags, earthenware, fine sand and clay can be used as material separators in a CW‐MFC …”

Section: Cw‐mfc Systemmentioning

confidence: 99%

“…Poor water quality and deficient sanitation negatively affect livelihood choices, food security, and educational possibilities for families across the world. The bad economic and demographic growth, poor infrastructure for sanitation, and industrial and social development lead to an increase in climate change and wastewater production . To improve sanitation and the quality water for discharges in rivers or oceans, there needs to be incremented investment in management of sanitation facilities and development of new sustainable technology.…”

Section: Introductionmentioning

confidence: 99%

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Recent advances in constructed wetland‐microbial fuel cells for simultaneous bioelectricity production and wastewater treatment: A review

et al. 2019

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Summary The coupling of constructed wetlands (CWs) to microbial fuel cells (MFCs) has turned out to be a source of renewable energy for the production of bioelectricity and for the simultaneous wastewater treatment. Both technologies have an aerobic zone in the air‐water interface and an anaerobic zone in the lower part, where the anode and the cathode are strategically placed. This hybridization is a promising bioelectrochemical technology that exerts a symbiosis between plant‐bacteria in the rhizosphere of an aquatic plant, converting solar energy into bioelectricity through the formation of root exudates as an endogenous substrate and a microbial activity. The difference between CW‐MFC and MFC conventional lies in the bioelectricity and substrate production in situ, where exogenous substrates are not required for example wastewater. However, CW‐MFC can take organic content present in wastewater, promoting the removal of some pollutants. Different areas that comprise the study of a CW‐MFC have been explored, including the structures and their operation. This review aims to provide concise information on the state of the art of CW‐MFC systems, where a summary on important aspects of the development of this technology, such as bioelectricity production, configurations, plant species, rhizodeposits, electrode materials, wastewater treatment, and future perspectives, is presented. This system is a promising technology, not only for the production of bioenergy but also to maintain a clean environment, since during its operation, no toxic byproducts were formed.

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Section: Cw‐mfc Systemmentioning

confidence: 99%

Section: Cw‐mfc Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Recent advances in constructed wetland‐microbial fuel cells for simultaneous bioelectricity production and wastewater treatment: A review

et al. 2019

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“…Microbial fuel cells (MFCs) are renewable energy technology transducers [4], which has the potential for application in wastewater treatment plants [5,6], electrical devices [7,8], and biosensor [9,10], because it can use bacteria for generating electricity from waste water. However, the power densities of MFCs are still low due to their high internal resistances [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Effect of Wall Boundary Layer Thickness on Power Performance of a Recirculation Microbial Fuel Cell

2018

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Abstract:Hydrodynamic boundary layer is a significant phenomenon occurring in a flow through a bluff body, and this includes the flow motion and mass transfer. Thus, it could affect the biofilm formation and the mass transfer of substrates in microbial fuel cells (MFCs). Therefore, understanding the role of hydrodynamic boundary layer thicknesses in MFCs is truly important. In this study, three hydrodynamic boundary layers of thickness 1.6, 4.1, and 5 cm were applied to the recirculation mode membrane-less MFC to investigate the electricity production performance. The results showed that the thin hydrodynamic boundary could enhance the voltage output of MFC due to the strong shear rate effect. Thus, a maximum voltage of 21 mV was obtained in the MFC with a hydrodynamic boundary layer thickness of 1.6 cm, and this voltage output obtained was 15 times higher than that of MFC with 5 cm hydrodynamic boundary layer thickness. Moreover, the charge transfer resistance of anode decreased with decreasing hydrodynamic boundary layer thickness. The charge transfer resistance of MFC with hydrodynamic boundary layer of thickness 1.6 cm was 39 Ω, which was 0.79 times lesser than that of MFC with 5 cm thickness. These observations would be useful for enhancing the performance of recirculation mode MFCs.

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“…The growing concerns of renewable energy requirement increases with respect to depletion of fossil fuels [1][2][3]. Apart from this environmental risks are also drawing attention of the researchers to develop new alternatives [4,5]. Wastewater from the brewery leading to extensive soil and water pollution.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Distillery Effluent as Substrate for Power Generation with Optimized Parametric Conditions using Microbial Fuel Cell

Jatoi¹,

Tunio²,

Riaz³

et al. 2018

Eurasian J Anal Chem

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Distillery effluents create many environmental problems via their direct disposal in open ponds. There is a need to explore the technology for treating such wastes and making useful energy from it. In the modern era, Microbial Fuel Cell (MFC) are gaining popularity regarding working mechanism for treating wastewater as well as electricity generation. Current study primarily focuses to utilize distillery effluent as valuable substrate in microbial fuel cell coupled with a parametric effect. Saccharomyces cerevisiae were utilized as biocatalyst in MFC with different organic loads in the form of substrate concentration followed by various aeration rate, and pH for power generation. With numerous changes in aeration rate, substrate concentration, and pH values automatically effect on power generation. The maximum power generation was observed at 175 mg/l about power density 69 mW/m 2 , current density 82.48 mA/m 2 , voltage 770 mv, power 0.6391 mW and current 0.83 mA. It is concluded that by utilizing microbial fuel cell we can handle the problem associated with distillery wastewater. A further study could be done on the modification of the process based on commercial and different operational aspects.

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Microbial fuel cells: a sustainable solution for bioelectricity generation and wastewater treatment

Cited by 93 publications

References 155 publications

Recent advances in constructed wetland‐microbial fuel cells for simultaneous bioelectricity production and wastewater treatment: A review

Recent advances in constructed wetland‐microbial fuel cells for simultaneous bioelectricity production and wastewater treatment: A review

Effect of Wall Boundary Layer Thickness on Power Performance of a Recirculation Microbial Fuel Cell

Utilization of Distillery Effluent as Substrate for Power Generation with Optimized Parametric Conditions using Microbial Fuel Cell

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