Electricity Generation Using Membrane-less Microbial Fuel Cell during Wastewater Treatment

Du, Zhenmin; Li, Qinghai; Meng, Tong; Li, Shaohua; Li, Haoran

doi:10.1016/s1004-9541(08)60154-8

Cited by 63 publications

(21 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…They have only an anodic chamber and sometimes there is no need for aeration. [133,174] A tubular, single-chambered, continuous MFC was designed by Rabaey et al [130] which used a granular graphite matrix as the anode and a ferricyanide solution as the cathode. Some kinds of SCMFCs are membraneless which reduce the cost of MFC.…”

Section: Environmental Technology Reviewsmentioning

confidence: 99%

Effective factors on the performance of microbial fuel cells in wastewater treatment – a review

Aghababaie

Farhadian

Jeihanipour

et al. 2015

Environmental Technology Reviews

119

View full text Add to dashboard Cite

Microbial fuel cell (MFC) is a novel technology that can be used for electricity generation during oxidization of the organic substances presented in the substrate. To obtain a desirable performance, it is essential to understand the influential factors on the MFC. Among the numerous factors affecting the MFC performance, substrate, microorganisms and their metabolism, electron transfer mechanism in an anodic chamber, electrodes material and the shape of electrodes, type of membrane, operating conditions such as temperature, pH and salinity, electron acceptor in a cathodic chamber and geometric design of the MFC are considered as the most important factors. Among different substrates, wastewater is a sustainable rich medium which can be treated by MFCs. There are various types of exoelectrogenic bacteria presented in wastewaters which can oxidize organic matter and transfer electrons to the anode without using mediators. Like other microbial systems, optimum pH and temperature enhance the bacterial growth which can improve the MFC performance. Despite the negative effect of salt on microbial growth, higher salinity and ionic strength can increase the conductivity of substrate and therefore enhance MFC performance. Scaling up MFC is a controversial issue which needs a comprehensive understanding of these factors. By using new inexpensive materials for electrodes and membrane for manufacturing MFCs, a more cost-effective design for scalable wastewater treatment and high power generation can be achieved. Furthermore, MFC is a suitable candidate for bioremediation of contaminated groundwater. These factors and their impact on the MFC performance have been reviewed in the present survey.

show abstract

Section: Environmental Technology Reviewsmentioning

confidence: 99%

Effective factors on the performance of microbial fuel cells in wastewater treatment – a review

Aghababaie

Farhadian

Jeihanipour

et al. 2015

Environmental Technology Reviews

119

View full text Add to dashboard Cite

show abstract

“…In MFCs, microorganisms function as a biocatalyst, which can convert organic matter into electricity by using three extracellular electron transfer (EET) pathways: (1) direct electron transfer (c-type cytochromes); (2) electron mediators; and, (3) solid conductive matrix (electrical conductive pili or nanowires) [14]. Nevertheless, the microbes using electron mediators are not suitable for commercial application as they are planktonic and could be easily washed out along with the effluent [15], and also has higher energy losses than other EET pathways [14]. Hence, it obvious that anode biofilm plays a key role in the electricity production of MFCs [16,17], as the bacteria that use direct electron transfer and solid conductive matrix pathway will be attached on the anode electrode.…”

Section: Introductionmentioning

confidence: 99%

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

2018

View full text Add to dashboard Cite

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.

show abstract

“…Pre-acclimated microbes from acetatefed MFCs or inoculum from local wastewater treatment plant are prevailing microorganism seeds [9,13,20,24,32,40,46,63]. Due to the diffusion of anions and cations from the desalination chamber to the anode chamber and cathode chamber, electrolyte conductivity increased and overall system performance was enhanced [24].…”

Section: Microorganisms Used In MDCmentioning

confidence: 98%

Microbial desalination cells as a versatile technology: Functions, optimization and prospective

et al. 2015

View full text Add to dashboard Cite

Electricity Generation Using Membrane-less Microbial Fuel Cell during Wastewater Treatment

Cited by 63 publications

References 25 publications

Effective factors on the performance of microbial fuel cells in wastewater treatment – a review

Effective factors on the performance of microbial fuel cells in wastewater treatment – a review

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

Microbial desalination cells as a versatile technology: Functions, optimization and prospective

Contact Info

Product

Resources

About