Microbial fuel cell system: a promising technology for pollutant removal and environmental remediation

Wu, Qing; Jiao, Shipu; Ma, Mengxing; Peng, Sen

doi:10.1007/s11356-020-07745-0

Cited by 96 publications

(24 citation statements)

References 125 publications

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“…However, these toxic metals create many problems in an aquatic environment due to non-biodegradability, their toxic nature, and bioaccumulation [38,39]. The conventional methods of wastewater treatment encountered a problem, i.e., if concentrations of metals are high, all conventional methods become useless because it decreases the working efficiency [40]. So, MFCs have become an emerging research direction for environmental researchers to degrade toxic metals from water resources.…”

Section: Degradation Of Toxic Metal Through 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: Degradation Of Toxic Metal Through 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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“…During the last decades the concept of microbial fuel cells (MFC) is a subject of significant scientific interest [1][2][3][4]. This idea seems to be very attractive, because it offers double benefit: first, to generate electricity without air pollution and second, to carry out wastewater treatment to clean water ponds with considerably reduced energy consumption [3,4].…”

Section: Introductionmentioning

confidence: 99%

Bioelectrochemical Processes in Industrial Biotechnology

Beschkov¹,

Razkazova-Velkova²

2021

Energy Storage Battery Systems - Fundamentals and Applications

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Industrial fermentation and biological wastewater treatment are usually based on redox processes taking place in living cells and on enzyme processes. The practical application of these redox processes is usually associated with electricity generation in microbial fuel cells or process enhancement in microbial electrolysis cells. The microbial fuel cell approach leads to straightforward wastewater treatment with less energy demand. Additional advantages of these processes are the direct removal of various pollutants and the avoidance of addition of chemical agents with the resulting waste products of treatment as it is familiar with the traditional chemical methods. Another option for the use of bioelectrochemical processes in practice is the approach of microbial electrolysis cells. The application of electric field on fermentation or microbial wastewater treatment processes might result in different aspects: either in purely electrochemical processes on the electrodes or in different types of bioelectrochemical stimulation of enzyme activity in the living cells. These applications are associated with the combination of enzyme activity with electrochemical processes to produce or remove certain compounds rapidly at high concentrations with no additions of other chemicals. In the present chapter, both approaches (microbial fuel cells and microbial electrolysis cells) are presented and discussed. Some practical applications and experimental examples of such bioelectrochemical redox processes stimulated by constant electric field are demonstrated.

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“…Microbial fuel cells (MFCs) are a new type of energy saving device. They are a biochemical system that uses microorganisms to degrade organic matter and generate electric energy (Wang et al 2020;Xu et al 2019; Wu et al 2020). Microbes in the system consume organic matter and convert chemical energy into electricity (Niu et al 2020;Hai et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Removal of Phosphorus from Domestic Sewage by a Constructed Wetland Coupled Microbial Fuel Cell System

Dou

Yin

et al. 2021

Preprint

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A constructed wetland (CW) coupled microbial fuel cell (MFC) system that treats wastewater and generates electricity was constructed. The total phosphorus in the simulated domestic sewage was used as the treatment target, and the optimal phosphorus removal effect and electricity generation were determined by comparing the changes in substrates, hydraulic retention times, and microorganisms. The mechanism underlying phosphorus removal was also analyzed. The experimental results showed that the best removal efficiencies of the two CW-MFC systems that used magnesia and garnet as substrates were 80.3% and 92.4%, respectively. Phosphorus removal by the garnet matrix mainly depends on a complex adsorption process whereas the magnesia system relies on ion exchange reactions. The CW-MFC system can also generate electricity. The highest output voltage and stable voltage of the garnet system were both higher than those of the magnesia system. The maximum stable voltage of the garnet device was 500 mV, while that of the magnesia device was 290 mV. The microorganisms in the soil and in the electrode within the wetland sediments also substantially changed, indicating that microorganisms positively respond to the removal of organic matter and power generation. Combining the advantages of constructed wetlands and microbial fuel cells also improves phosphorus removal in the coupled system. Therefore, when studying a CW-MFC system, the selection of electrode materials, matrix, and system structure should be taken into account in order to find a method that will improve the power generation capacity of the system and remove phosphorus.

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Microbial fuel cell system: a promising technology for pollutant removal and environmental remediation

Cited by 96 publications

References 125 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

Bioelectrochemical Processes in Industrial Biotechnology

Removal of Phosphorus from Domestic Sewage by a Constructed Wetland Coupled Microbial Fuel Cell System

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