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Energies 2018, 11(7), 1822; https://doi.org/10.3390/en11071822

Electro-Microbiology as a Promising Approach Towards Renewable Energy and Environmental Sustainability

1
Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
2
Research Center for Environmental Material and Pollution Control Technology, University of Chinese Academy of Sciences, Beijing 100049, China
3
Research Group Biomarkers for Infectious Diseases, TWINCORE Centre for Clinical and Experimental Infection Research, 30625 Hannover, Germany
4
Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
5
School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Brackenhurst Campus, Southwell NG25 0QF, UK
*
Authors to whom correspondence should be addressed.
Received: 22 May 2018 / Revised: 7 July 2018 / Accepted: 9 July 2018 / Published: 12 July 2018
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Abstract

Microbial electrochemical technologies provide sustainable wastewater treatment and energy production. Despite significant improvements in the power output of microbial fuel cells (MFCs), this technology is still far from practical applications. Extracting electrical energy and harvesting valuable products by electroactive bacteria (EAB) in bioelectrochemical systems (BESs) has emerged as an innovative approach to address energy and environmental challenges. Thus, maximizing power output and resource recovery is highly desirable for sustainable systems. Insights into the electrode-microbe interactions may help to optimize the performance of BESs for envisioned applications, and further validation by bioelectrochemical techniques is a prerequisite to completely understand the electro-microbiology. This review summarizes various extracellular electron transfer mechanisms involved in BESs. The significant role of characterization techniques in the advancement of the electro-microbiology field is discussed. Finally, diverse applications of BESs, such as resource recovery, and contributions to the pursuit of a more sustainable society are also highlighted. View Full-Text
Keywords: renewable bioenergy; microbial fuel cell; bioelectrochemical system; resources recovery; biodegradation renewable bioenergy; microbial fuel cell; bioelectrochemical system; resources recovery; biodegradation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Ali, J.; Sohail, A.; Wang, L.; Rizwan Haider, M.; Mulk, S.; Pan, G. Electro-Microbiology as a Promising Approach Towards Renewable Energy and Environmental Sustainability. Energies 2018, 11, 1822.

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