1
|
Xie L, Tanaka F, Yagi T, Hashimoto H, Ikeru K, Igarashi T, Kobayashi H, Sakoda M, Yoshida N. Multi-anode enhanced the bioelectricity generation in air-cathode microbial fuel cells towards energy self-sustaining wastewater treatment. ENVIRONMENTAL RESEARCH 2024; 243:117744. [PMID: 38092240 DOI: 10.1016/j.envres.2023.117744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 11/17/2023] [Accepted: 11/18/2023] [Indexed: 12/25/2023]
Abstract
Microbial fuel cells (MFCs) hold considerable promise for harnessing the substantial energy resources present in wastewater. However, their practical application in wastewater treatment is limited by inadequate removal of organic matter and inefficient power recovery. Previous studies have investigated aeration as a method to enhance the removal of organic matter, but this method is energy-intensive. To address this issue, this study proposed using MFC-recovered bioelectricity for aeration, thereby mitigating the associated expenses. An air-cathode MFC with multi-anode was constructed and optimized to maximize electricity supply for aeration. Carbon-felt anodes were chosen as the most effective anode configuration, due to the high abundance of electroactive bacteria and genes observed in the biofilm generated on their surface. By incorporating six carbon felt anodes, the MFC achieved a 1.7 and 1.1 fold enhancement in the maximum power and current density, respectively. The optimized MFC unit achieved a stable current density of 0.32 A/m2 and achieved COD removal of 60% in the long-term operation of 140 days in a 50 L reactor. In a reactor scaled up to 1600 L, 72 MFCs successfully powered a mini air pump work for 10 s after an 81-s charging period. The intermittent aeration resulted in partial increases in DO concentrations to 0.03-3.5 mg/L, which is expected to promote the removal of nitrogen compounds by the nitrification-anammox process. These groundbreaking results lay the foundation for self-sustaining wastewater treatment technologies.
Collapse
Affiliation(s)
- Li Xie
- Department of Civil Engineering, Nagoya Institute of Technology (Nitech), Nagoya, Japan
| | - Fumichika Tanaka
- Department of Civil Engineering, Nagoya Institute of Technology (Nitech), Nagoya, Japan
| | - Toshiyuki Yagi
- Department of Civil Engineering, Nagoya Institute of Technology (Nitech), Nagoya, Japan
| | - Hideaki Hashimoto
- Department of Civil Engineering, Nagoya Institute of Technology (Nitech), Nagoya, Japan
| | - Kyo Ikeru
- Department of Civil Engineering, Nagoya Institute of Technology (Nitech), Nagoya, Japan
| | - Takashi Igarashi
- Research Center, TOYOBO Co., LTD., 2-1-1, Katata, Otsu, Shiga, Japan
| | - Hiroaki Kobayashi
- River & Water Resources Division, NIPPON KOEI Co., Ltd., 5-4 Kojimachi, Chiyoda-ku, Tokyo, Japan
| | - Mitsuhiro Sakoda
- Water & Sewage Department, Tamano Consultants Co., Ltd., 2-17-14, Higashisakura, Higashi-ku, Nagoya, Aichi, Japan
| | - Naoko Yoshida
- Department of Civil Engineering, Nagoya Institute of Technology (Nitech), Nagoya, Japan.
| |
Collapse
|
2
|
Borja-Maldonado F, López Zavala MÁ. Assessment of Graphite, Graphene, and Hydrophilic-Treated Graphene Electrodes to Improve Power Generation and Wastewater Treatment in Microbial Fuel Cells. Bioengineering (Basel) 2023; 10:bioengineering10030378. [PMID: 36978769 PMCID: PMC10045180 DOI: 10.3390/bioengineering10030378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 03/11/2023] [Accepted: 03/13/2023] [Indexed: 03/30/2023] Open
Abstract
In this study, graphite, graphene, and hydrophilic-treated graphene electrodes were evaluated in a dual-chamber microbial fuel cell (DC-MFC). Free-oxygen conditions were promoted in anodic and cathodic chambers. Hydrochloric acid at 0.1 M and pH 1.1 was used as a catholyte, in addition to deionized water in the cathodic chamber. Domestic wastewater was used as a substrate, and a DuPontTM Nafion 117 membrane was used as a proton exchange membrane. The maximum power density of 32.07 mW·m-2 was obtained using hydrophilic-treated graphene electrodes and hydrochloric acid as catholyte. This power density was 1.4-fold and 32-fold greater than that of graphene (22.15 mW·m-2) and graphite (1.02 mW·m-2), respectively, under the same operational conditions. In addition, the maximum organic matter removal efficiencies of 69.8% and 75.5% were obtained using hydrophilic-treated graphene electrodes, for hydrochloric acid catholyte and deionized water, respectively. Therefore, the results suggest that the use of hydrophilic-treated graphene functioning as electrodes in DC-MFCs, and hydrochloric acid as a catholyte, favored power density when domestic wastewater is degraded. This opens up new possibilities for improving DC-MFC performance through the selection of suitable new electrode materials and catholytes.
Collapse
Affiliation(s)
- Fátima Borja-Maldonado
- Tecnologico de Monterrey, School of Engineering and Sciences, Avenue Eugenio Garza Sada 2501, Monterrey 64849, Mexico
| | - Miguel Ángel López Zavala
- Tecnologico de Monterrey, School of Engineering and Sciences, Avenue Eugenio Garza Sada 2501, Monterrey 64849, Mexico
| |
Collapse
|
3
|
Kambara H, Dinh HTT, Matsushita S, Aoi Y, Kindaichi T, Ozaki N, Ohashi A. New microbial electrosynthesis system for methane production from carbon dioxide coupled with oxidation of sulfide to sulfate. J Environ Sci (China) 2023; 125:786-797. [PMID: 36375960 DOI: 10.1016/j.jes.2022.02.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 02/16/2022] [Accepted: 02/18/2022] [Indexed: 06/16/2023]
Abstract
Microbial electrosynthesis system (MES) is a promising method that can use carbon dioxide, which is a greenhouse gas, to produce methane which acts as an energy source, without using organic substances. However, this bioelectrical reduction reaction can proceed at a certain high applied voltage when coupled with water oxidation in the anode coated with metallic catalyst. When coupled with the oxidation of HS- to SO42-, methane production is thermodynamically more feasible, thus implying its production at a considerably lower applied voltage. In this study, we demonstrated the possibility of electrotrophic methane production coupled with HS- oxidation in a cost-effective bioanode chamber in the MES without organic substrates at a low applied voltage of 0.2 V. In addition, microbial community analyses of biomass enriched in the bioanode and biocathode were used to reveal the most probable pathway for methane production from HS- oxidation. In the bioanode, electroautotrophic SO42- production accompanied with electron donation to the electrode is performed mainly by the following two steps: first, incomplete sulfide oxidation to sulfur cycle intermediates (SCI) is performed; then the produced SCI are disproportionated to HS- and SO42-. In the biocathode, methane is produced mainly via H2 and acetate by electron-accepting syntrophic bacteria, homoacetogens, and acetoclastic archaea. Here, a new eco-friendly MES with biological H2S removal is established.
Collapse
Affiliation(s)
- Hiromi Kambara
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Ha T T Dinh
- Faculty of Environment, Ho Chi Minh City University of Natural Resources and Environment, 236 Le Van Sy, 1 Ward, Tan Binh District, Ho Chi Minh City, Vietnam
| | - Shuji Matsushita
- Agricultural Technology Research Center, Hiroshima Prefectural Technology Research Institute, 6869, Hara, Hachihonmatsu, Higashihiroshima, Hiroshima 739-0151, Japan
| | - Yoshiteru Aoi
- Program of Biotechnology, Graduate School of Integrated Sciences for Life, Hiroshima University, 1-3-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8530, Japan
| | - Tomonori Kindaichi
- Department of Civil and Environmental Engineering, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Noriatsu Ozaki
- Department of Civil and Environmental Engineering, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Akiyoshi Ohashi
- Department of Civil and Environmental Engineering, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan.
| |
Collapse
|
4
|
Dai M, Wu Y, Wang J, Lv Z, Li F, Zhang Y, Kong Q. Constructed wetland-microbial fuel cells enhanced with iron carbon fillers for ciprofloxacin wastewater treatment and power generation. CHEMOSPHERE 2022; 305:135377. [PMID: 35738411 DOI: 10.1016/j.chemosphere.2022.135377] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 05/15/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
In this study, the following three experimental devices were operated for 70 days for the treatment of ciprofloxacin pollutants in wastewater: constructed wetlands (CW), constructed wetland-microbial fuel cells (EG), and constructed wetland-microbial fuel cells with new iron-carbon fillers (TPFC). The water quality, power generation capacity, microbial community structure, and changes in the resistance gene qnrs were studied. The efficiency of removal of total phosphate in the TPFC (97.1% ± 2.5%) was significantly higher than that in the EG (51.6% ± 4.8%) and the CW (68.1% ± 2.9%). The efficiency of removal of ciprofloxacin was also significantly higher (TPFC: 91.2% ± 3.4%, EG: 82.1% ± 2.3%, and CW: 75.1% ± 5.6%) (P < 0.05). The voltage of TPFC reached 300.16 ± 12.12 mV, which was apparently greater than that of EG (180.36 ± 16.73 mV) (P < 0.05), possibly because of the higher abundance of microorganisms such as Burkholderiaceae, Hydrogenophaga, and Proteobacteria. There were more copies of the resistance gene qnrs (TPFC: 7.74/μL, EG: 5.52/μL, and CW: 2.65/μL), which may be associated with stronger resistance; therefore, the efficiency of removal of ciprofloxacin was higher in the TPFC. TPFCs are a promising way to remove ciprofloxacin in wastewater.
Collapse
Affiliation(s)
- Meixue Dai
- College of Life Science, Shandong Normal University, Jinan, 250014, Shandong, PR China
| | - Yiming Wu
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in the Universities, Shandong Normal University, Jinan, 250014, PR China; College of Life Science, Shandong Normal University, Jinan, 250014, Shandong, PR China
| | - Jie Wang
- SHANDONG ACADEMY OF ENVIRONMENTAL SCIENCES CO, LTD, 50 Lishan Road, Jinan, 250013, Shandong, PR China
| | - Zhe Lv
- SHANDONG ACADEMY OF ENVIRONMENTAL SCIENCES CO, LTD, 50 Lishan Road, Jinan, 250013, Shandong, PR China
| | - Fei Li
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in the Universities, Shandong Normal University, Jinan, 250014, PR China; College of Life Science, Shandong Normal University, Jinan, 250014, Shandong, PR China
| | - Yujia Zhang
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in the Universities, Shandong Normal University, Jinan, 250014, PR China; College of Life Science, Shandong Normal University, Jinan, 250014, Shandong, PR China
| | - Qiang Kong
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in the Universities, Shandong Normal University, Jinan, 250014, PR China; Dongying Institute, Shandong Normal University, Dongying, 257092, Shandong, PR China.
| |
Collapse
|
5
|
Choudhury P, Bhunia B, Mahata N, Bandyopadhyay TK. Optimization for the improvement of power in equal volume of single chamber microbial fuel cell using dairy wastewater. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100489] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
|
6
|
Vemuri B, Chilkoor G, Dhungana P, Islam J, Baride A, Koratkar N, Ajayan PM, Rahman MM, Hoefelmeyer JD, Gadhamshetty V. Oxygen Reduction Reaction with Manganese Oxide Nanospheres in Microbial Fuel Cells. ACS OMEGA 2022; 7:11777-11787. [PMID: 35449907 PMCID: PMC9016819 DOI: 10.1021/acsomega.1c06950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 02/25/2022] [Indexed: 06/14/2023]
Abstract
Operating microbial fuel cells (MFCs) under extreme pH conditions offers a substantial benefit. Acidic conditions suppress the growth of undesirable methanogens and increase redox potential for oxygen reduction reactions (ORRs), and alkaline conditions increase the electrocatalytic activity. However, operating any fuel cells, including MFCs, is difficult under such extreme pH conditions. Here, we demonstrate a pH-universal ORR ink based on hollow nanospheres of manganese oxide (h-Mn3O4) anchored with multiwalled carbon nanotubes (MWCNTs) on planar and porous forms of carbon electrodes in MFCs (pH = 3-11). Nanospheres of h-Mn3O4 (diameter ∼ 31 nm, shell thickness ∼ 7 nm) on a glassy carbon electrode yielded a highly reproducible ORR activity at pH 3 and 10, based on rotating disk electrode (RDE) tests. A phenomenal ORR performance and long-term stability (∼106 days) of the ink were also observed with four different porous cathodes (carbon cloth, carbon nanofoam paper, reticulated vitreous carbon, and graphite felt) in MFCs. The ink reduced the charge transfer resistance (R ct) to the ORR by 100-fold and 45-fold under the alkaline and acidic conditions, respectively. The current study promotes ORR activity and subsequently the MFC operations under a wide range of pH conditions, including acidic and basic conditions.
Collapse
Affiliation(s)
- Bhuvan Vemuri
- Department
of Civil and Environmental Engineering, South Dakota Mines, 501 E Saint Joseph Blvd., Rapid City, South Dakota 57701, United States
- BuGReMeDEE
Consortium, South Dakota Mines, Rapid City, South Dakota 57701, United States
| | - Govinda Chilkoor
- 2-Dimensional
Materials for Biofilm Engineering Science and Technology (2D-BEST)
Center, South Dakota Mines, Rapid City, South Dakota 57701, United States
| | - Pramod Dhungana
- Department
of Chemistry, University of South Dakota, 414 E. Clark Street, Vermillion, South Dakota 57069, United States
| | - Jamil Islam
- Department
of Civil and Environmental Engineering, South Dakota Mines, 501 E Saint Joseph Blvd., Rapid City, South Dakota 57701, United States
- BuGReMeDEE
Consortium, South Dakota Mines, Rapid City, South Dakota 57701, United States
| | - Aravind Baride
- Department
of Chemistry, University of South Dakota, 414 E. Clark Street, Vermillion, South Dakota 57069, United States
| | - Nikhil Koratkar
- Department
of Mechanical, Aerospace and Nuclear Engineering
Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, New York 12180, United
States
| | - Pulickel M. Ajayan
- Department
of Materials Science and Nano Engineering, Rice University, Houston, Texas 77005, United States
| | - Muhammad M. Rahman
- Department
of Materials Science and Nano Engineering, Rice University, Houston, Texas 77005, United States
| | - James D. Hoefelmeyer
- Department
of Chemistry, University of South Dakota, 414 E. Clark Street, Vermillion, South Dakota 57069, United States
| | - Venkataramana Gadhamshetty
- BuGReMeDEE
Consortium, South Dakota Mines, Rapid City, South Dakota 57701, United States
- 2-Dimensional
Materials for Biofilm Engineering Science and Technology (2D-BEST)
Center, South Dakota Mines, Rapid City, South Dakota 57701, United States
| |
Collapse
|
7
|
Pan QR, Jiang PY, Lai BL, Qian YB, Huang LJ, Liu XX, Li N, Liu ZQ. Co, N co-doped hierarchical porous carbon as efficient cathode electrocatalyst and its impact on microbial community of anode biofilm in microbial fuel cell. CHEMOSPHERE 2022; 291:132701. [PMID: 34715100 DOI: 10.1016/j.chemosphere.2021.132701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 09/15/2021] [Accepted: 10/24/2021] [Indexed: 06/13/2023]
Abstract
The exploration of low-cost, long-term stable, and highly electrochemically active cathode catalysts is important for the practical application of microbial fuel cell (MFC). In this work, a series of the 3D hierarchical porous Co-N-C (3DHP Co-N-C) materials are designed and synthesized by a metal-organic framework ZIF-67 as a precursor and SiO2 sphere of different sizes as the hard template. The 3DHP Co-N-C-2 with 129 nm macropore exhibits excellent ORR performance in 0.1 M KOH solution with a half-wave potential of 0.80 V vs. RHE and superior durability than Pt/C (20%) due to the specific macropore-mesopore-micropore structure that exposes a large number of active sites and accelerates the electrolyte transport and oxygen diffusion. The MFC with 3DHP Co-N-C-2 as the cathode catalysts shows excellent performance with a maximum power density of 426.9±7.87 mW m-2 and favorable durability after 50 d of operation. In addition, 16s rDNA results reveal the presence of different dominant electrogenic bacteria and different abundance of important non-electrogenic bacteria in the anode biofilm in MFCs using cathode catalysts with different ORR activity. And 3DHP Co-N-C-2 was found to be beneficial to the synergistic effect of electrogenic and non-electrogenic bacteria. This study explores electrocatalysts in terms of both electrocatalytic activity and anode microorganisms, providing new and comprehensive insights into the power generation of MFC.
Collapse
Affiliation(s)
- Qiu-Ren Pan
- School of Chemistry and Chemical Engineering/Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University, Guangzhou, 510006, China
| | - Peng-Yang Jiang
- School of Chemistry and Chemical Engineering/Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University, Guangzhou, 510006, China
| | - Bi-Lin Lai
- School of Chemistry and Chemical Engineering/Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University, Guangzhou, 510006, China
| | - Yun-Bing Qian
- School of Chemistry and Chemical Engineering/Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University, Guangzhou, 510006, China
| | - Li-Juan Huang
- School of Chemistry and Chemical Engineering/Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University, Guangzhou, 510006, China
| | - Xiao-Xin Liu
- School of Chemistry and Chemical Engineering/Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University, Guangzhou, 510006, China
| | - Nan Li
- School of Chemistry and Chemical Engineering/Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University, Guangzhou, 510006, China.
| | - Zhao-Qing Liu
- School of Chemistry and Chemical Engineering/Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University, Guangzhou, 510006, China
| |
Collapse
|
8
|
Chaudhary S, Yadav S, Singh R, Sadhotra C, Patil SA. Extremophilic electroactive microorganisms: Promising biocatalysts for bioprocessing applications. BIORESOURCE TECHNOLOGY 2022; 347:126663. [PMID: 35017088 DOI: 10.1016/j.biortech.2021.126663] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 12/28/2021] [Accepted: 12/29/2021] [Indexed: 06/14/2023]
Abstract
Electroactive microorganisms (EAMs) use extracellular electron transfer (EET) processes to access insoluble electron donors or acceptors in cellular respiration. These are used in developing microbial electrochemical technologies (METs) for biosensing and bioelectronics applications and the valorization of liquid and gaseous wastes. EAMs from extreme environments can be useful to overcome the existing limitations of METs operated with non-extreme microorganisms. Studying extreme EAMs is also necessary to improve understanding of respiratory processes involving EET. This article first discusses the advantages of using extreme EAMs in METs and summarizes the diversity of EAMs from different extreme environments. It is followed by a detailed discussion on their use as biocatalysts in various bioprocessing applications via bioelectrochemical systems. Finally, the challenges associated with operating METs under extreme conditions and promising research opportunities on fundamental and applied aspects of extreme EAMs are presented.
Collapse
Affiliation(s)
- Srishti Chaudhary
- Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research Mohali (IISER Mohali), Sector 81, S.A.S. Nagar, Manauli PO 140306, Punjab, India
| | - Sukrampal Yadav
- Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research Mohali (IISER Mohali), Sector 81, S.A.S. Nagar, Manauli PO 140306, Punjab, India
| | - Ramandeep Singh
- Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research Mohali (IISER Mohali), Sector 81, S.A.S. Nagar, Manauli PO 140306, Punjab, India
| | - Chetan Sadhotra
- Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research Mohali (IISER Mohali), Sector 81, S.A.S. Nagar, Manauli PO 140306, Punjab, India
| | - Sunil A Patil
- Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research Mohali (IISER Mohali), Sector 81, S.A.S. Nagar, Manauli PO 140306, Punjab, India.
| |
Collapse
|
9
|
Liu T, Nadaraja AV, Friesen J, Gill K, Lam MI, Roberts DJ. Narrow pH tolerance found for a microbial fuel cell treating winery wastewater. J Appl Microbiol 2021; 131:2280-2293. [PMID: 33843137 DOI: 10.1111/jam.15102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 03/11/2021] [Accepted: 03/31/2021] [Indexed: 11/30/2022]
Abstract
AIMS The use of microbial fuel cells (MFC) to treat winery wastewater is promising; however, an initial acidic pH, fluctuating chemical oxygen demand (COD) levels and a lack of natural buffering in these wastewaters make providing a suitable buffer system at an ideal buffer to COD ratio. METHODS AND RESULTS A lab scale MFC was designed, inoculated with anaerobic winery sludge and fed with synthetic winery wastewater. It was observed that at pH 6·5, the MFC performed best, the maximum output voltage was 0·63 ± 0·01 V for 60 ± 3 h, and the COD removal efficiency reached 77 ± 7%. The electrogens were affected by pH much more than the bulk COD degrading organisms. Fluorescent in situ hybridization suggested Betaproteobacteria played a significant role in electron transfer. CONCLUSIONS A ratio of 1 mmol l-1 phosphate buffer to 100 mg l-1 COD was ideal to maintain a stable pH for MFCs treating synthetic winery wastewater. SIGNIFICANCE AND IMPACT OF THE STUDY The results find the narrow pH tolerance for MFCs treating winery wastewater and demonstrate the significance of pH and buffer to COD ratio for steady performance of MFCs.
Collapse
Affiliation(s)
- T Liu
- School of Engineering, The University of British Columbia Okanagan, Kelowna, BC, Canada
| | - A V Nadaraja
- School of Engineering, The University of British Columbia Okanagan, Kelowna, BC, Canada
| | - J Friesen
- School of Engineering, The University of British Columbia Okanagan, Kelowna, BC, Canada
| | - K Gill
- School of Engineering, The University of British Columbia Okanagan, Kelowna, BC, Canada
| | - M I Lam
- School of Engineering, The University of British Columbia Okanagan, Kelowna, BC, Canada
| | - D J Roberts
- School of Engineering, The University of British Columbia Okanagan, Kelowna, BC, Canada.,Faculty of Science and Engineering, University of Northern British Columbia, Prince George, BC, Canada
| |
Collapse
|
10
|
Cao X, Wang H, Long X, Nishimura O, Li X. Limitation of voltage reversal in the degradation of azo dye by a stacked double-anode microbial fuel cell and characterization of the microbial community structure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 754:142454. [PMID: 33254847 DOI: 10.1016/j.scitotenv.2020.142454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 08/10/2020] [Accepted: 09/13/2020] [Indexed: 06/12/2023]
Abstract
In this study, two double-anode microbial fuel cells (MFCs) were connected in series for degradation of the azo dye reactive brilliant red X-3B. After the series connection, the electricity generation of one of the MFCs decreased, and the other was not affected too much. Due to the special structure in the double-anode MFC reduced the imbalanced performance between the MFC units, the occurrence of voltage reversal was limited. The removal efficiencies in two MFC reactors were not consistent after the series connection, the results showed that the MFC with the reduced electricity generation had the higher removal efficiencies, it was 12.90, 11.66, and 40.05% higher than in the MFC in which the power generation capacity was not affected after the series connection, the MFC without serial connection, and the control group, respectively. Meanwhile, the microbial communities related to the degradation of refractory organic compounds increased and related to electricity generation decreased in the MFC with the reduced electricity generation, the changes of the microbial communities were consistent with its electricity generation and the removal efficiencies. The degradation products in the effluent from two MFC units showed that had the products generated from the MFC with the reduced electricity generation had simpler structures comparing the other MFC unit.
Collapse
Affiliation(s)
- Xian Cao
- School of Energy and Environment, Southeast University, Nanjing, Jiangsu 210096, China
| | - Hui Wang
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, Shaanxi 710048, China.
| | - Xizi Long
- School of Energy and Environment, Southeast University, Nanjing, Jiangsu 210096, China; International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Osamu Nishimura
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Aoba Aramaki 6-6-06, Sendai 980-8579, Japan.
| | - Xianning Li
- School of Energy and Environment, Southeast University, Nanjing, Jiangsu 210096, China.
| |
Collapse
|
11
|
Koók L, Nemestóthy N, Bélafi-Bakó K, Bakonyi P. The influential role of external electrical load in microbial fuel cells and related improvement strategies: A review. Bioelectrochemistry 2021; 140:107749. [PMID: 33549971 DOI: 10.1016/j.bioelechem.2021.107749] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 01/04/2021] [Accepted: 01/21/2021] [Indexed: 12/28/2022]
Abstract
The scope of the currentreviewis to discuss and evaluate the role of the external electrical load/resistor (EEL) on the overall behavior and functional properties of microbial fuel cells (MFCs). In this work, a comprehensive analysis is made by considering various levels of MFC architecture, such as electric and energy harvesting efficiency, anode electrode potential shifts, electro-active biofilm formation, cell metabolism and extracellular electron transfer mechanisms, as a function of the EEL and its control strategies. It is outlined that taking the regulation of EEL into account at MFC optimization is highly beneficial, and in order to support this step, in this review, a variety of guidelines are collected and analyzed.
Collapse
Affiliation(s)
- László Koók
- Research Group on Bioengineering, Membrane Technology and Energetics, University of Pannonia, Egyetem ut 10, 8200 Veszprém, Hungary
| | - Nándor Nemestóthy
- Research Group on Bioengineering, Membrane Technology and Energetics, University of Pannonia, Egyetem ut 10, 8200 Veszprém, Hungary
| | - Katalin Bélafi-Bakó
- Research Group on Bioengineering, Membrane Technology and Energetics, University of Pannonia, Egyetem ut 10, 8200 Veszprém, Hungary
| | - Péter Bakonyi
- Research Group on Bioengineering, Membrane Technology and Energetics, University of Pannonia, Egyetem ut 10, 8200 Veszprém, Hungary.
| |
Collapse
|
12
|
Zhang J, Chu L, Wang Z, Guo W, Zhang X, Zhang X, Chen R, Dong S, Sun J. Dynamic evolution of electrochemical and biological features in microbial fuel cells upon chronic exposure to increasing oxytetracycline dosage. Bioelectrochemistry 2020; 136:107623. [PMID: 32795941 DOI: 10.1016/j.bioelechem.2020.107623] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 07/24/2020] [Accepted: 07/24/2020] [Indexed: 10/23/2022]
Abstract
Dynamic changes in power generation and electrochemical properties were compared between the control microbial fuel cells (C-MFC) and an oxytetracycline (OTC)-treated MFC (O-MFC) on days 84, 139, 174, 224, 295, 307 and 353. The results showed that a high concentration of OTC (>5 mg·L-1) could inhibit microbial activity and result in a decline of voltage output and power density compared with the same C-MFC. However, with the prolongation of incubation time, the inhibitory effect was gradually weakened. Electrochemical analyses demonstrated that long-term OTC acclimation reduced the ohmic and polarisation resistance of the anode, which was conducive to the recovery of electrochemical performance. More than 99% of 10 mg·L-1 OTC could be removed within 48 h, and the antibacterial activity of the MFC effluent on Escherichia coli DH5α was conclusively eliminated. High-throughput sequencing analysis revealed that the diversity and richness of the microbial community decreased significantly after long-term OTC enrichment. Acinetobacter, Petrimonas, Spirochaetaceae and Delftia were enriched and played a dominant role in C-MFC stability and power generation. The promotion by Cupriavidus, Geobacter and Stenotrophomonas in simultaneous OTC degradation and bioelectricity generation in the O-MFC was demonstrated.
Collapse
Affiliation(s)
- Jing Zhang
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan 453007, PR China; Sanmenxia Polytechnic, Sanmenxia, Henan 472000, PR China
| | - Liangliang Chu
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan 453007, PR China; Xinxiang University, Xinxiang, Henan 453007, PR China
| | - Zongwu Wang
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan 453007, PR China; Department of Environment Engineering, Yellow River Conservancy Technical Institute, Henan Engineering Technology Research Center of Green Coating Materials, Kaifeng, Henan 475004, PR China
| | - Wei Guo
- Department of Chemistry, Xinxiang Medical University, Xinxiang 453003, PR China
| | - Xiao Zhang
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan 453007, PR China
| | - Xiao Zhang
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan 453007, PR China
| | - Ruyan Chen
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan 453007, PR China
| | - Shuying Dong
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan 453007, PR China.
| | - Jianhui Sun
- School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan 453007, PR China.
| |
Collapse
|
13
|
Toward Optimization of Wood Industry Wastewater Treatment in Microbial Fuel Cells—Mixed Wastewaters Approach. ENERGIES 2020. [DOI: 10.3390/en13010263] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Microbial fuel cell (MFC) has the potential to become a promising sustainable technology of wastewater treatment. Usually, the investigations on MFCs are aimed at maximized power production in the system. In this article, we focused on the optimization of wood industry wastewater treatment in MFC, in combination with municipal wastewater as a source of microorganisms. We investigated the influence of different external resistance (2000 Ω, 1000 Ω, 500 Ω, and 100 Ω) on power density and wastewater treatment efficiency (chemical oxygen demand (COD) removal) in 1-month MFC operation time. We found that the highest COD removal was for MFCs under R = 1000 Ω after 22 days of MFC operation, while the highest current density was obtained for the lowest applied resistance. The results imply that wastewater treatment parameters such as resistance and time of MFC operation should be a subject of optimization for each specific type of wastewater used, in order to maximize either wastewater treatment efficiency or power production in MFC. Thus, optimization of power production and COD removal efficiency in MFCs need to be run separately as different resistances are required for maximizing these two parameters. When COD removal efficiency is a subject of optimization, there is no universal value of external resistance, but it should be set to the specific wastewater characteristics.
Collapse
|
14
|
Li Z, Yang S, Song Y, Xu H, Wang Z, Wang W, Zhao Y. Performance evaluation of treating oil-containing restaurant wastewater in microbial fuel cell using in situ graphene/polyaniline modified titanium oxide anode. ENVIRONMENTAL TECHNOLOGY 2020; 41:420-429. [PMID: 30015569 DOI: 10.1080/09593330.2018.1499814] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 07/06/2018] [Indexed: 06/08/2023]
Abstract
Most studies conducted nowadays to boost electrode performance in microbial fuel cell (MFC) have focused on carbonaceous materials. The titanium suboxides (Ti4O7, TS) are able to provide a new alternative for achieving better performance in MFC and have been tested and demonstrated in this study. The Ti4O7 electrode with high electrochemical activity was modified by graphene/polyaniline by the constant potential method. Electrogenic microorganisms were more conducive to adhere to the anode electrode due to the presence of graphene/polyaniline. The MFC reactor with polyaniline /graphene modified TS (TSGP) anode achieves the highest voltage with 980 mV, and produces a peak power density of 2073 mW/m2, which is 2.9 and 12.7 times of those with the carbon cloth anode, respectively, at the 1000 Ω external resistance. In addition, this study evaluates the effects of anolyte conductivity, pH, and COD on the treatment of oil-containing restaurant wastewater (OCRW) in MFC using TSGP anode. The OCRW amended with 120 mS/cm obtains the lowest internal resistance (160.3 Ω). Increasing the anodic pH, gradually from acidic (pH 5.5) to alkaline conditions (pH 8.0), resulted in a gradual increase in maximum power density to 576.4 mW/m2 and a decrease in internal cell resistance to 203.7 Ω. The MFC at the COD 1500 mg/L could obtain steady-state output voltage during 103 h while removing up to 65.2% of the COD of the OCRW.
Collapse
Affiliation(s)
- ZhiLiang Li
- Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas, Ministry of Education, Chang'an University, Xi'an, People's Republic of China
- School of Environment and Energy, South China University of Technology, Guangzhou, People's Republic of China
| | - ShengKe Yang
- Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas, Ministry of Education, Chang'an University, Xi'an, People's Republic of China
| | - Ya'nan Song
- Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas, Ministry of Education, Chang'an University, Xi'an, People's Republic of China
| | - HaiYang Xu
- Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas, Ministry of Education, Chang'an University, Xi'an, People's Republic of China
| | - ZongZhou Wang
- Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas, Ministry of Education, Chang'an University, Xi'an, People's Republic of China
| | - WenKe Wang
- Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas, Ministry of Education, Chang'an University, Xi'an, People's Republic of China
| | - YaQian Zhao
- UCD Dooge Centre for Water Resources Research, School of Civil Engineering, University College Dublin, Dublin, Ireland
| |
Collapse
|
15
|
Iigatani R, Ito T, Watanabe F, Nagamine M, Suzuki Y, Inoue K. Electricity generation from sweet potato-shochu waste using microbial fuel cells. J Biosci Bioeng 2019; 128:56-63. [DOI: 10.1016/j.jbiosc.2018.12.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 11/25/2018] [Accepted: 12/29/2018] [Indexed: 01/03/2023]
|
16
|
Yi Y, Xie B, Zhao T, Li Z, Stom D, Liu H. Effect of external resistance on the sensitivity of microbial fuel cell biosensor for detection of different types of pollutants. Bioelectrochemistry 2019; 125:71-78. [DOI: 10.1016/j.bioelechem.2018.09.003] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 09/05/2018] [Accepted: 09/06/2018] [Indexed: 10/28/2022]
|
17
|
Factors Affecting the Effectiveness of Bioelectrochemical System Applications: Data Synthesis and Meta-Analysis. BATTERIES-BASEL 2018. [DOI: 10.3390/batteries4030034] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Microbial fuel cells (MFCs) and microbial electrolysis cells (MECs) are promising bioelectrochemical systems (BESs) for simultaneous wastewater treatment and energy/resource recovery. Unlike conventional fuel cells that are based on stable chemical reactions, these BESs are sensitive to environmental and operating conditions, such as temperature, pH, external resistance, etc. Substrate type, electrode material, and reactor configuration are also important factors affecting power generation in MFCs and hydrogen production in MECs. In order to discuss the influence of these above factors on the performance of MFCs and MECs, this study analyzes published data via data synthesis and meta-analysis. The results revealed that domestic wastewater would be more suitable for treatment using MFCs or MECs, due to their lower toxicity for anode biofilms compared to swine wastewater and landfill leachate. The optimal temperature was 25–35 °C, optimal pH was 6–7, and optimal external resistance was 100–1000 Ω. Although systems using carbon cloth as the electrodes demonstrated better performance (due to carbon cloth’s large surface area for microbial growth), the high prices of this material and other existing carbonaceous materials make it inappropriate for practical applications. To scale up and commercialize MFCs and MECs in the future, enhanced system performance and stability are needed, and could be possibly achieved with improved system designs.
Collapse
|
18
|
Ishii S, Suzuki S, Yamanaka Y, Wu A, Nealson KH, Bretschger O. Population dynamics of electrogenic microbial communities in microbial fuel cells started with three different inoculum sources. Bioelectrochemistry 2017. [DOI: 10.1016/j.bioelechem.2017.06.003] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
19
|
Tang Y, Deng D, Zhou L, Jiang Y, Ma Y, Tian G, Liu Y. Analysis of electricity generation and community of electroactive biofilms enriched from various wastewater treatment stages. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.09.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
20
|
Samsudeen N, Radhakrishnan T, Matheswaran M. Effect of isolated bacterial strains from distillery wastewater on power generation in microbial fuel cell. Process Biochem 2016. [DOI: 10.1016/j.procbio.2016.06.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
21
|
Ni G, Christel S, Roman P, Wong ZL, Bijmans MFM, Dopson M. Electricity generation from an inorganic sulfur compound containing mining wastewater by acidophilic microorganisms. Res Microbiol 2016; 167:568-75. [PMID: 27155452 PMCID: PMC5015573 DOI: 10.1016/j.resmic.2016.04.010] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 04/25/2016] [Accepted: 04/25/2016] [Indexed: 11/29/2022]
Abstract
Sulfide mineral processing often produces large quantities of wastewaters containing acid-generating inorganic sulfur compounds. If released untreated, these wastewaters can cause catastrophic environmental damage. In this study, microbial fuel cells were inoculated with acidophilic microorganisms to investigate whether inorganic sulfur compound oxidation can generate an electrical current. Cyclic voltammetry suggested that acidophilic microorganisms mediated electron transfer to the anode, and that electricity generation was catalyzed by microorganisms. A cation exchange membrane microbial fuel cell, fed with artificial wastewater containing tetrathionate as electron donor, reached a maximum whole cell voltage of 72 ± 9 mV. Stepwise replacement of the artificial anolyte with real mining process wastewater had no adverse effect on bioelectrochemical performance and generated a maximum voltage of 105 ± 42 mV. 16S rRNA gene sequencing of the microbial consortia resulted in sequences that aligned within the genera Thermoplasma, Ferroplasma, Leptospirillum, Sulfobacillus and Acidithiobacillus. This study opens up possibilities to bioremediate mining wastewater using microbial fuel cell technology.
Collapse
MESH Headings
- Bioelectric Energy Sources
- Biota
- Cluster Analysis
- DNA, Archaeal/chemistry
- DNA, Archaeal/genetics
- DNA, Bacterial/chemistry
- DNA, Bacterial/genetics
- DNA, Ribosomal/chemistry
- DNA, Ribosomal/genetics
- Electricity
- Mining/methods
- Oxidation-Reduction
- Phylogeny
- RNA, Ribosomal, 16S/genetics
- Sequence Analysis, DNA
- Sulfur Compounds/metabolism
- Wastewater/microbiology
- Water Pollutants, Chemical/metabolism
Collapse
Affiliation(s)
- Gaofeng Ni
- Center for Ecology and Evolution in Microbial model Systems (EEMiS), Linnaeus University, Kalmar, Sweden.
| | - Stephan Christel
- Center for Ecology and Evolution in Microbial model Systems (EEMiS), Linnaeus University, Kalmar, Sweden.
| | - Pawel Roman
- Sub-Department of Environmental Technology, Wageningen University, PO Box 17, 6700 AA, Wageningen, The Netherlands; Wetsus, European Center of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA, Leeuwarden, The Netherlands.
| | - Zhen Lim Wong
- Center for Ecology and Evolution in Microbial model Systems (EEMiS), Linnaeus University, Kalmar, Sweden.
| | - Martijn F M Bijmans
- Wetsus, European Center of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA, Leeuwarden, The Netherlands.
| | - Mark Dopson
- Center for Ecology and Evolution in Microbial model Systems (EEMiS), Linnaeus University, Kalmar, Sweden.
| |
Collapse
|
22
|
Zhang E, Zhai W, Luo Y, Scott K, Wang X, Diao G. Acclimatization of microbial consortia to alkaline conditions and enhanced electricity generation. BIORESOURCE TECHNOLOGY 2016; 211:736-742. [PMID: 27061261 DOI: 10.1016/j.biortech.2016.03.115] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Revised: 03/20/2016] [Accepted: 03/21/2016] [Indexed: 06/05/2023]
Abstract
Air-cathode microbial fuel cells (MFCs), obtained by inoculating with an aerobic activated sludge, were activated over a one month period, at pH 10.0, to obtain alkaline MFCs. The alkaline MFCs produced stable power of 118mWm(-2) and a maximum power density of 213mWm(-2) at pH 10.0, using glucose as substrate. The performance of the MFCs was enhanced to produce a stable power of 140mWm(-2) and a maximum power density of 235mWm(-2) by increasing pH to 11.0. This is the highest pH for stably operating MFCs reported in the literature. Power production was found to be suppressed at higher pH (12.0) and lower pH (9.0). Microbial analysis indicated that Firmicutes phylum was largely enriched in the anodic biofilms (88%), within which Eremococcus genus was the dominant group (47%). It is the first time that Eremococcus genus was described in bio-electrochemical systems.
Collapse
Affiliation(s)
- Enren Zhang
- Department of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou City 225002, China.
| | - Wenjing Zhai
- Department of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou City 225002, China
| | - Yue Luo
- Department of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou City 225002, China
| | - Keith Scott
- School of Chemical Engineering and Advanced Materials, Newcastle University, Newcastle NE1 7RU, United Kingdom
| | - Xu Wang
- School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| | - Guowang Diao
- Department of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou City 225002, China
| |
Collapse
|
23
|
Dopson M, Ni G, Sleutels THJA. Possibilities for extremophilic microorganisms in microbial electrochemical systems. FEMS Microbiol Rev 2015; 40:164-81. [PMID: 26474966 PMCID: PMC4802824 DOI: 10.1093/femsre/fuv044] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/16/2015] [Indexed: 11/12/2022] Open
Abstract
Microbial electrochemical systems exploit the metabolism of microorganisms to generate electrical energy or a useful product. In the past couple of decades, the application of microbial electrochemical systems has increased from the use of wastewaters to produce electricity to a versatile technology that can use numerous sources for the extraction of electrons on the one hand, while on the other hand these electrons can be used to serve an ever increasing number of functions. Extremophilic microorganisms grow in environments that are hostile to most forms of life and their utilization in microbial electrochemical systems has opened new possibilities to oxidize substrates in the anode and produce novel products in the cathode. For example, extremophiles can be used to oxidize sulfur compounds in acidic pH to remediate wastewaters, generate electrical energy from marine sediment microbial fuel cells at low temperatures, desalinate wastewaters and act as biosensors of low amounts of organic carbon. In this review, we will discuss the recent advances that have been made in using microbial catalysts under extreme conditions and show possible new routes that extremophilic microorganisms open for microbial electrochemical systems.
Collapse
Affiliation(s)
- Mark Dopson
- Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, SE-391 82 Kalmar, Sweden
| | - Gaofeng Ni
- Centre for Ecology and Evolution in Microbial Model Systems (EEMiS), Linnaeus University, SE-391 82 Kalmar, Sweden
| | - Tom H J A Sleutels
- Wetsus, European Centre of Excellence for Sustainable Water Technology, 8911 MA Leeuwarden, The Netherlands
| |
Collapse
|