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Nguyen C, Adekunle A, Gomez Vidales A, Moreau A, Tartakovsky B, Woodward L. Evaluation of the constant phase element and capacitance equivalent circuit models for microbial fuel cell monitoring. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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2
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Comparative Study of Different Production Methods of Activated Carbon Cathodic Electrodes in Single Chamber MFC Treating Municipal Landfill Leachate. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12062991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The treatment of real waste extracts with simultaneous energy production is currently under research. One method of addressing this dual task is using biochemical reactors named microbial fuel cells (MFCs). MFCs consist of a bioanode and a cathode where the oxygen reduction reaction (ORR) occurs. Cathodes are currently under optimization regarding the nature of their support, their catalytic efficiency and their configurations. In this work, we present facile preparation methods for the production of activated carbon ceramic-supported cathodic electrodes produced with three different techniques (wash-coat, brush-coat, and ultrasound-assisted deposition/infiltration). The produced cathodic electrodes were tested in a single-chamber MFC, filled with the concentrated liquid residue, after the reverse osmosis (RO-CLR) treatment of leachate from a municipal waste landfill, in order to exploit their electrochemical potential for simultaneous waste treatment and energy production. The electrode produced utilizing 20 kHz ultrasounds proved to be more effective in terms of energy harvesting (10.7 mW/g·L of leachate) and wastewater treatment (COD removal 85%). Internal resistances of the ultrasound-produced electrodes are lower, as compared to the other two methods, opening new exploitation pathways in the use of ultrasound as a means in producing electrodes for microbial fuel cells.
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Effect of Food Waste Condensate Concentration on the Performance of Microbial Fuel Cells with Different Cathode Assemblies. SUSTAINABILITY 2022. [DOI: 10.3390/su14052625] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The aim of this study is to examine the effect of food waste condensate concentration (400–4000 mg COD/L) on the performance of two microbial fuel cells (MFCs). Food waste condensate is produced after condensing the vapors that result from drying and shredding of household food waste (HFW). Two identical single-chamber MFCs were constructed with different cathodic assemblies based on GoreTex cloth (Cell 1) and mullite (Cell 2) materials. Linear sweep voltammetry (LSV) and electrochemical impedance spectroscopy (EIS) measurements were carried out to measure the maximum power output and the internal resistances of the cells. High COD removal efficiencies (>86%) were observed in all cases. Both cells performed better at low initial condensate concentrations (400–600 mg COD/L). Cell 1 achieved maximum electricity yield (1.51 mJ/g COD/L) at 500 mg COD/L and maximum coulombic efficiency (6.9%) at 400 mg COD/L. Cell 2 achieved maximum coulombic efficiency (51%) as well as maximum electricity yield (25.9 mJ/g COD/L) at 400 mg COD/L. Maximum power was observed at 600 mg COD/L for Cell 1 (14.2 mW/m2) and Cell 2 (14.4 mW/m2). Impedance measurements revealed that the charge transfer resistance and the solution resistance increased significantly with increasing condensate concentration in both cells.
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Zhang X, Li R, Song J, Ren Y, Luo X, Li Y, Li X, Li T, Wang X, Zhou Q. Combined phyto-microbial-electrochemical system enhanced the removal of petroleum hydrocarbons from soil: A profundity remediation strategy. JOURNAL OF HAZARDOUS MATERIALS 2021; 420:126592. [PMID: 34265647 DOI: 10.1016/j.jhazmat.2021.126592] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/21/2021] [Accepted: 07/04/2021] [Indexed: 06/13/2023]
Abstract
The soil contaminated by petroleum hydrocarbons has been a global environmental problem and its remediation is urgent. A combined phyto-microbial-electrochemical system (PMES) was constructed to repair the oil-contaminated soil in this study. During the 42-day operation time, a total petroleum hydrocarbons (TPHs) of 18.0 ± 3.0% were removed from PMES, which increased by 414% compared with the control group (CK1). The supervision of physicochemical properties of pore water in soil exhibited an enhanced microbial consumption of the total organic carbon (TOC) and N source under the applied potential with the generation of bio-current. The microbial succession indicated that the Dietzia, Georgenia and Malbranchea possibly participated in the degradation and current output in PMES. And a collaborative network of potential degrading microorganisms including unclassified norank_f__JG30-KF-CM45 (in Chloroflexi), Dietzia and Malbranchea was discovered in PMES. While the functional communities of microorganism were re-enriched with the reconstructed interactions in the system which was started with the sterilized soil (S+MEC). The superiority of TPHs degradation in S+MEC compared to P + CK2 (removing the electrochemical effect relative to CK1) revealed the key role of external potential in regulating the degradation microflora. The study provided a strategy of the potential regulated phyto-microbial interaction for the removal of TPHs.
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Affiliation(s)
- Xiaolin Zhang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control/College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Ruixiang Li
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control/College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Jintong Song
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control/College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Yuanyuan Ren
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control/College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Xi Luo
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control/College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Yi Li
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control/College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Xiaojing Li
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs/Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, MARA/Tianjin Key Laboratory of Agro-Environment and Agro-Product Safety, Tianjin 300191, China
| | - Tian Li
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control/College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China.
| | - Xin Wang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control/College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Qixing Zhou
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control/College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China.
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5
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Combined energy storage and methane bioelectrosynthesis from carbon dioxide in a microbial electrosynthesis system. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.biteb.2019.100302] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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6
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Real-Time Monitoring of Micro-Electricity Generation Through the Voltage Across a Storage Capacitor Charged by a Simple Microbial Fuel Cell Reactor with Fast Fourier Transform. ENERGIES 2019. [DOI: 10.3390/en12132610] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The pattern of micro-electricity production of simple two-chamber microbial fuel cells (MFC) was monitored in this study. Piggery wastewater and anaerobic sludge served as fuel and inocula for the MFC, respectively. The output power, including voltage and current generation, of triplicate MFCs was measured using an on-line monitoring system. The maximum voltage obtained among the triplicates was 0.663 V. We also found that removal efficiency of chemical oxygen demand (COD) and biochemical oxygen demand (BOD) in the piggery wastewater was 94.99 and 98.63%, respectively. Moreover, analytical results of Fast Fourier Transform (FFT) demonstrated that the output current comprised alternating current (AC) and direct current (DC) components, ranging from mA to μA.
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Adekunle A, Raghavan V, Tartakovsky B. On-line monitoring of heavy metals-related toxicity with a microbial fuel cell biosensor. Biosens Bioelectron 2019; 132:382-390. [DOI: 10.1016/j.bios.2019.03.011] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 03/05/2019] [Accepted: 03/07/2019] [Indexed: 11/17/2022]
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8
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Real-Time Performance Optimization and Diagnostics during Long-Term Operation of a Solid Anolyte Microbial Fuel Cell Biobattery. BATTERIES-BASEL 2019. [DOI: 10.3390/batteries5010009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
This study describes a novel approach for real-time energy harvesting and performance diagnostics of a solid anolyte microbial fuel cell (SA-MFC) representing a prototype smart biobattery. The biobattery power output was maximized in real time by combining intermittent power generation with a Perturbation-and-Observation algorithm for maximum power point tracking. The proposed approach was validated by operating the biobattery under a broad range of environmental conditions affecting power production, such as temperature (4–25 °C), NaCl concentration (up to 2 g L−1), and carbon source concentration. Real-time biobattery performance diagnostics was achieved by estimating key internal parameters (resistance, capacitance, open circuit voltage) using an equivalent electrical circuit model. The real time optimization approach ensured maximum power production during 388 days of biobattery operation under varying environmental conditions, thus confirming the feasibility of biobattery application for powering small electronic devices in field applications.
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Hussain SA, Perrier M, Tartakovsky B. Real-time monitoring of a microbial electrolysis cell using an electrical equivalent circuit model. Bioprocess Biosyst Eng 2018; 41:543-553. [PMID: 29396708 DOI: 10.1007/s00449-017-1889-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 12/23/2017] [Indexed: 12/16/2022]
Abstract
Efforts in developing microbial electrolysis cells (MECs) resulted in several novel approaches for wastewater treatment and bioelectrosynthesis. Practical implementation of these approaches necessitates the development of an adequate system for real-time (on-line) monitoring and diagnostics of MEC performance. This study describes a simple MEC equivalent electrical circuit (EEC) model and a parameter estimation procedure, which enable such real-time monitoring. The proposed approach involves MEC voltage and current measurements during its operation with periodic power supply connection/disconnection (on/off operation) followed by parameter estimation using either numerical or analytical solution of the model. The proposed monitoring approach is demonstrated using a membraneless MEC with flow-through porous electrodes. Laboratory tests showed that changes in the influent carbon source concentration and composition significantly affect MEC total internal resistance and capacitance estimated by the model. Fast response of these EEC model parameters to changes in operating conditions enables the development of a model-based approach for real-time monitoring and fault detection.
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Affiliation(s)
- S A Hussain
- Département de Génie Chimique, École Polytechnique Montréal, C.P.6079 Succ., Centre-Ville Montréal, Montreal, QC, H3C 3A7, Canada
| | - M Perrier
- Département de Génie Chimique, École Polytechnique Montréal, C.P.6079 Succ., Centre-Ville Montréal, Montreal, QC, H3C 3A7, Canada
| | - B Tartakovsky
- Département de Génie Chimique, École Polytechnique Montréal, C.P.6079 Succ., Centre-Ville Montréal, Montreal, QC, H3C 3A7, Canada. .,National Research Council of Canada, 6100 Royalmount Ave., Montreal, QC, H4P 2R2, Canada.
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Hussain SA, Perrier M, Tartakovsky B. Long-term performance of a microbial electrolysis cell operated with periodic disconnection of power supply. RSC Adv 2018; 8:16842-16849. [PMID: 35540527 PMCID: PMC9080321 DOI: 10.1039/c8ra01863d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 04/24/2018] [Indexed: 11/21/2022] Open
Abstract
This study describes a new approach for achieving stable long-term performance and maximizing removal of chemical oxygen demand (COD) in a Microbial Electrolysis Cell (MEC) by periodic disconnection of the MEC power supply.
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Affiliation(s)
- S. A. Hussain
- Département de Génie Chimique
- École Polytechnique de Montréal
- Canada H3C 3A7b
| | - M. Perrier
- Département de Génie Chimique
- École Polytechnique de Montréal
- Canada H3C 3A7b
| | - B. Tartakovsky
- Département de Génie Chimique
- École Polytechnique de Montréal
- Canada H3C 3A7b
- National Research Council of Canada
- Canada H4P 2R2
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11
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Zhou Y, Zhou G, Yin L, Guo J, Wan X, Shi H. High-Performance Carbon Anode Derived from Sugarcane for Packed Microbial Fuel Cells. ChemElectroChem 2016. [DOI: 10.1002/celc.201600510] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yuhong Zhou
- Department of Environmental Engineering; Zhejiang University; Yuhangtang Road 866# Hangzhou 310058 China
- Key Laboratory of Water Pollution Control and Environmental Safety of Zhejiang Province; Hangzhou 310058 China
| | - Guowang Zhou
- Department of Municipal and Environmental Engineering; Institute of Environment and Ecology, Powerchina Huadong Engineering Corporation Limited; Hangzhou 310000 China
| | - Lu Yin
- Zhejiang Design Institute of Water Conservancy and Hydroelectric Power; Hangzhou 310000 China
| | - Jinyi Guo
- College of Chemical Engineering and Modern Materials; Shangluo University; Shangluo 726000 China
| | - Xiankai Wan
- Department of Environmental Engineering; Zhejiang University; Yuhangtang Road 866# Hangzhou 310058 China
- Key Laboratory of Water Pollution Control and Environmental Safety of Zhejiang Province; Hangzhou 310058 China
| | - Huixiang Shi
- Department of Environmental Engineering; Zhejiang University; Yuhangtang Road 866# Hangzhou 310058 China
- Key Laboratory of Water Pollution Control and Environmental Safety of Zhejiang Province; Hangzhou 310058 China
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12
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González-Nava C, Godínez LA, Chávez AU, Cercado B, Arriaga LG, Rodríguez-Valadez FJ. Study of different carbon materials for their use as bioanodes in microbial fuel cells. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2016; 73:2849-2857. [PMID: 27332829 DOI: 10.2166/wst.2016.124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Microbial fuel cells (MFCs) are capable of removing the organic matter contained in water while generating a certain amount of electrical power at the same time. One of the most important aspects in the operation of MFCs is the formation of biofilms on the anode. Here, we report the characterization of different carbon electrodes and biofilm using a rapid and easy methodology for the growth of biofilms. The biofilms were developed and generated a voltage in less than 4 days, obtaining a maximum of 0.3 V in the cells. Scanning electron microscopy images revealed that growth of the biofilm was only on the surface of the electrode, and consequently both carbon cloth Electrochem and carbon cloth Roe materials showed a greater quantity of volatile solids on the surface of the anode and power density. The results suggested that the best support was carbon cloth Electrochem because it generated a power density of 13.4 mW/m(2) and required only a few hours for the formation of the biofilm.
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Affiliation(s)
- Catalina González-Nava
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro Sanfandila, Pedro Escobedo, Querétaro, P.O. Box 76703, México E-mail:
| | - Luis A Godínez
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro Sanfandila, Pedro Escobedo, Querétaro, P.O. Box 76703, México E-mail:
| | - Abraham U Chávez
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro Sanfandila, Pedro Escobedo, Querétaro, P.O. Box 76703, México E-mail:
| | - Bibiana Cercado
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro Sanfandila, Pedro Escobedo, Querétaro, P.O. Box 76703, México E-mail:
| | - Luis G Arriaga
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro Sanfandila, Pedro Escobedo, Querétaro, P.O. Box 76703, México E-mail:
| | - Francisco J Rodríguez-Valadez
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica, Parque Tecnológico Querétaro Sanfandila, Pedro Escobedo, Querétaro, P.O. Box 76703, México E-mail:
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13
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Combined bioelectrochemical–electrical model of a microbial fuel cell. Bioprocess Biosyst Eng 2015; 39:267-76. [DOI: 10.1007/s00449-015-1510-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 11/18/2015] [Indexed: 10/22/2022]
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14
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Rousseau R, Rimboud M, Délia ML, Bergel A, Basséguy R. Electrochemical characterization of microbial bioanodes formed on a collector/electrode system in a highly saline electrolyte. Bioelectrochemistry 2015; 106:97-104. [DOI: 10.1016/j.bioelechem.2015.06.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 06/12/2015] [Accepted: 06/21/2015] [Indexed: 11/25/2022]
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15
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Hidalgo D, Sacco A, Hernández S, Tommasi T. Electrochemical and impedance characterization of Microbial Fuel Cells based on 2D and 3D anodic electrodes working with seawater microorganisms under continuous operation. BIORESOURCE TECHNOLOGY 2015; 195:139-146. [PMID: 26166463 DOI: 10.1016/j.biortech.2015.06.127] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 06/25/2015] [Accepted: 06/26/2015] [Indexed: 06/04/2023]
Abstract
A mixed microbial population naturally presents in seawater was used as active anodic biofilm of two Microbial Fuel Cells (MFCs), employing either a 2D commercial carbon felt or 3D carbon-coated Berl saddles as anode electrodes, with the aim to compare their electrochemical behavior under continuous operation. After an initial increase of the maximum power density, the felt-based cell reduced its performance at 5 months (from 7 to 4 μW cm(-2)), while the saddle-based MFC exceeds 9 μW cm(-2) (after 2 months) and maintained such performance for all the tests. Electrochemical impedance spectroscopy was used to identify the MFCs controlling losses and indicates that the mass-transport limitations at the biofilm-electrolyte interface have the main contribution (>95%) to their internal resistance. The activation resistance was one order of magnitude lower with the Berl saddles than with carbon felt, suggesting an enhanced charge-transfer in the high surface-area 3D electrode, due to an increase in bacteria population growth.
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Affiliation(s)
- D Hidalgo
- Center for Space Human Robotics @PoliTO, Istituto Italiano di Tecnologia, C.so Trento 21, 10129 Torino, Italy; Applied Science and Technology Department, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Torino, Italy
| | - A Sacco
- Center for Space Human Robotics @PoliTO, Istituto Italiano di Tecnologia, C.so Trento 21, 10129 Torino, Italy
| | - S Hernández
- Center for Space Human Robotics @PoliTO, Istituto Italiano di Tecnologia, C.so Trento 21, 10129 Torino, Italy; Applied Science and Technology Department, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Torino, Italy
| | - T Tommasi
- Center for Space Human Robotics @PoliTO, Istituto Italiano di Tecnologia, C.so Trento 21, 10129 Torino, Italy.
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Shen HB, Yong XY, Chen YL, Liao ZH, Si RW, Zhou J, Wang SY, Yong YC, OuYang PK, Zheng T. Enhanced bioelectricity generation by improving pyocyanin production and membrane permeability through sophorolipid addition in Pseudomonas aeruginosa-inoculated microbial fuel cells. BIORESOURCE TECHNOLOGY 2014; 167:490-494. [PMID: 25011080 DOI: 10.1016/j.biortech.2014.05.093] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2014] [Revised: 05/23/2014] [Accepted: 05/24/2014] [Indexed: 06/03/2023]
Abstract
Improvement on electron shuttle-mediated extracellular electron transfer (EET) is of great potential to enhance the power output of MFCs. In this study, sophorolipid was added to enhance the performance of Pseudomonas aeruginosa-inoculated MFC by improving the electron shuttle-mediated EET. Upon sophorolipid addition, the current density and power density increased ∼ 1.7 times and ∼ 2.6 times, respectively. In accordance, significant enhancement on pyocyanin production (the electron shuttle) and membrane permeability were observed. Furthermore, the conditions for sophorolipid addition were optimized to achieve maximum pyocyanin production (14.47 ± 0.23 μg/mL), and 4 times higher power output was obtained compared to the control. The results substantiated that enhanced membrane permeability and pyocyanin production by sophorolipid, which promoted the electron shuttle-mediated EET, underlies the improvement of the energy output in the P. aeruginosa-inoculated MFC. It suggested that addition of biosurfactant could be a promising way to enhance the energy generation in MFCs.
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Affiliation(s)
- Hai-Bo Shen
- College of Biotechnology and Pharmaceutical Engineering, Nanjing TECH University, Nanjing 210009, China; Bioenergy Research Institute, Nanjing TECH University, Nanjing 210009, China
| | - Xiao-Yu Yong
- College of Biotechnology and Pharmaceutical Engineering, Nanjing TECH University, Nanjing 210009, China; Bioenergy Research Institute, Nanjing TECH University, Nanjing 210009, China
| | - Yi-Lu Chen
- College of Biotechnology and Pharmaceutical Engineering, Nanjing TECH University, Nanjing 210009, China
| | - Zhi-Hong Liao
- Biofuels Institute, School of the Environment, Jiangsu University, Zhenjiang 212013, China
| | - Rong-Wei Si
- Biofuels Institute, School of the Environment, Jiangsu University, Zhenjiang 212013, China
| | - Jun Zhou
- College of Biotechnology and Pharmaceutical Engineering, Nanjing TECH University, Nanjing 210009, China; Bioenergy Research Institute, Nanjing TECH University, Nanjing 210009, China
| | - Shu-Ya Wang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing TECH University, Nanjing 210009, China; Bioenergy Research Institute, Nanjing TECH University, Nanjing 210009, China
| | - Yang-Chun Yong
- Biofuels Institute, School of the Environment, Jiangsu University, Zhenjiang 212013, China.
| | - Ping-Kai OuYang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing TECH University, Nanjing 210009, China; Bioenergy Research Institute, Nanjing TECH University, Nanjing 210009, China
| | - Tao Zheng
- College of Biotechnology and Pharmaceutical Engineering, Nanjing TECH University, Nanjing 210009, China; Bioenergy Research Institute, Nanjing TECH University, Nanjing 210009, China.
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Sevda S, Dominguez-Benetton X, De Wever H, Vanbroekhoven K, Sreekrishnan T, Pant D. Evaluation and enhanced operational performance of microbial fuel cells under alternating anodic open circuit and closed circuit modes with different substrates. Biochem Eng J 2014. [DOI: 10.1016/j.bej.2014.06.024] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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Coronado J, Perrier M, Tartakovsky B. Pulse-width modulated external resistance increases the microbial fuel cell power output. BIORESOURCE TECHNOLOGY 2013; 147:65-70. [PMID: 23989037 DOI: 10.1016/j.biortech.2013.08.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Revised: 07/31/2013] [Accepted: 08/02/2013] [Indexed: 05/15/2023]
Abstract
This study describes MFC operation with a pulse-width modulated connection of the external resistor (R-PWM mode) at low and high frequencies. Analysis of the output voltage profiles acquired during R-PWM tests showed the presence of slow and fast dynamic components, which can be described by a simple equivalent circuit model suitable for process control applications. At operating frequencies above 100 Hz a noticeable improvement in MFC performance was observed with the power output increase of 22-43% as compared to MFC operation with a constant external resistance.
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Affiliation(s)
- J Coronado
- Departement de Génie Chimique, École Polytechnique Montréal, C.P.6079 Succ., Centre-Ville Montréal, QC H3C 3A7, Canada
| | - M Perrier
- Departement de Génie Chimique, École Polytechnique Montréal, C.P.6079 Succ., Centre-Ville Montréal, QC H3C 3A7, Canada
| | - B Tartakovsky
- National Research Council of Canada, 6100 Royalmount Ave., Montréal, QC H4P 2R2, Canada.
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