Electroactive Bacteria in Natural Ecosystems and Their Applications in Microbial Fuel Cells for Bioremediation: A Review
Electroactive bacteria (EAB) are natural microorganisms (mainly <i>Bacteria</i> and <i>Archaea</i>) living in various habitats (e.g., water, soil, sediment), including extreme ones, which can interact electrically each other and/or with their extracellular environments. There...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Microorganisms |
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| Online Access: | https://www.mdpi.com/2076-2607/11/5/1255 |
| _version_ | 1797599009696645120 |
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| author | Gian Luigi Garbini Anna Barra Caracciolo Paola Grenni |
| author_facet | Gian Luigi Garbini Anna Barra Caracciolo Paola Grenni |
| author_sort | Gian Luigi Garbini |
| collection | DOAJ |
| description | Electroactive bacteria (EAB) are natural microorganisms (mainly <i>Bacteria</i> and <i>Archaea</i>) living in various habitats (e.g., water, soil, sediment), including extreme ones, which can interact electrically each other and/or with their extracellular environments. There has been an increased interest in recent years in EAB because they can generate an electrical current in microbial fuel cells (MFCs). MFCs rely on microorganisms able to oxidize organic matter and transfer electrons to an anode. The latter electrons flow, through an external circuit, to a cathode where they react with protons and oxygen. Any source of biodegradable organic matter can be used by EAB for power generation. The plasticity of electroactive bacteria in exploiting different carbon sources makes MFCs a green technology for renewable bioelectricity generation from wastewater rich in organic carbon. This paper reports the most recent applications of this promising technology for water, wastewater, soil, and sediment recovery. The performance of MFCs in terms of electrical measurements (e.g., electric power), the extracellular electron transfer mechanisms by EAB, and MFC studies aimed at heavy metal and organic contaminant bioremediationF are all described and discussed. |
| first_indexed | 2024-03-11T03:28:43Z |
| format | Article |
| id | doaj.art-bb55ea215e044f5f94084c7c9441327e |
| institution | Directory Open Access Journal |
| issn | 2076-2607 |
| language | English |
| last_indexed | 2024-03-11T03:28:43Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Microorganisms |
| spelling | doaj.art-bb55ea215e044f5f94084c7c9441327e2023-11-18T02:34:05ZengMDPI AGMicroorganisms2076-26072023-05-01115125510.3390/microorganisms11051255Electroactive Bacteria in Natural Ecosystems and Their Applications in Microbial Fuel Cells for Bioremediation: A ReviewGian Luigi Garbini0Anna Barra Caracciolo1Paola Grenni2Department of Ecology and Biological Sciences, Tuscia University, 01100 Viterbo, ItalyWater Research Institute, National Research Council, Montelibretti, 00010 Rome, ItalyWater Research Institute, National Research Council, Montelibretti, 00010 Rome, ItalyElectroactive bacteria (EAB) are natural microorganisms (mainly <i>Bacteria</i> and <i>Archaea</i>) living in various habitats (e.g., water, soil, sediment), including extreme ones, which can interact electrically each other and/or with their extracellular environments. There has been an increased interest in recent years in EAB because they can generate an electrical current in microbial fuel cells (MFCs). MFCs rely on microorganisms able to oxidize organic matter and transfer electrons to an anode. The latter electrons flow, through an external circuit, to a cathode where they react with protons and oxygen. Any source of biodegradable organic matter can be used by EAB for power generation. The plasticity of electroactive bacteria in exploiting different carbon sources makes MFCs a green technology for renewable bioelectricity generation from wastewater rich in organic carbon. This paper reports the most recent applications of this promising technology for water, wastewater, soil, and sediment recovery. The performance of MFCs in terms of electrical measurements (e.g., electric power), the extracellular electron transfer mechanisms by EAB, and MFC studies aimed at heavy metal and organic contaminant bioremediationF are all described and discussed.https://www.mdpi.com/2076-2607/11/5/1255electrogenic bacteriaexoelectrogenic bacteriaextracellular electron transfer mechanismsbio-recoverywaterwastewater |
| spellingShingle | Gian Luigi Garbini Anna Barra Caracciolo Paola Grenni Electroactive Bacteria in Natural Ecosystems and Their Applications in Microbial Fuel Cells for Bioremediation: A Review Microorganisms electrogenic bacteria exoelectrogenic bacteria extracellular electron transfer mechanisms bio-recovery water wastewater |
| title | Electroactive Bacteria in Natural Ecosystems and Their Applications in Microbial Fuel Cells for Bioremediation: A Review |
| title_full | Electroactive Bacteria in Natural Ecosystems and Their Applications in Microbial Fuel Cells for Bioremediation: A Review |
| title_fullStr | Electroactive Bacteria in Natural Ecosystems and Their Applications in Microbial Fuel Cells for Bioremediation: A Review |
| title_full_unstemmed | Electroactive Bacteria in Natural Ecosystems and Their Applications in Microbial Fuel Cells for Bioremediation: A Review |
| title_short | Electroactive Bacteria in Natural Ecosystems and Their Applications in Microbial Fuel Cells for Bioremediation: A Review |
| title_sort | electroactive bacteria in natural ecosystems and their applications in microbial fuel cells for bioremediation a review |
| topic | electrogenic bacteria exoelectrogenic bacteria extracellular electron transfer mechanisms bio-recovery water wastewater |
| url | https://www.mdpi.com/2076-2607/11/5/1255 |
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