201
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Buitrón G, Moreno-Andrade I. Performance of a Single-Chamber Microbial Fuel Cell Degrading Phenol: Effect of Phenol Concentration and External Resistance. Appl Biochem Biotechnol 2014; 174:2471-81. [DOI: 10.1007/s12010-014-1195-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Accepted: 08/21/2014] [Indexed: 12/01/2022]
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202
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Synergistic microbial consortium for bioenergy generation from complex natural energy sources. ScientificWorldJournal 2014; 2014:139653. [PMID: 25097866 PMCID: PMC4109225 DOI: 10.1155/2014/139653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 06/16/2014] [Indexed: 11/24/2022] Open
Abstract
Microbial species have evolved diverse mechanisms for utilization of complex carbon sources. Proper combination of targeted species can affect bioenergy production from natural waste products. Here, we established a stable microbial consortium with Escherichia coli and Shewanella oneidensis in microbial fuel cells (MFCs) to produce bioenergy from an abundant natural energy source, in the form of the sarcocarp harvested from coconuts. This component is mostly discarded as waste. However, through its usage as a feedstock for MFCs to produce useful energy in this study, the sarcocarp can be utilized meaningfully. The monospecies S. oneidensis system was able to generate bioenergy in a short experimental time frame while the monospecies E. coli system generated significantly less bioenergy. A combination of E. coli and S. oneidensis in the ratio of 1 : 9 (v : v) significantly enhanced the experimental time frame and magnitude of bioenergy generation. The synergistic effect is suggested to arise from E. coli and S. oneidensis utilizing different nutrients as electron donors and effect of flavins secreted by S. oneidensis. Confocal images confirmed the presence of biofilms and point towards their importance in generating bioenergy in MFCs.
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203
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204
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Zhang X, Pant D, Zhang F, Liu J, He W, Logan BE. Long-Term Performance of Chemically and Physically Modified Activated Carbons in Air Cathodes of Microbial Fuel Cells. ChemElectroChem 2014. [DOI: 10.1002/celc.201402123] [Citation(s) in RCA: 129] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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205
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Xu B, Chen BY, Hsueh CC, Qin LJ, Chang CT. Deciphering characteristics of bicyclic aromatics--mediators for reductive decolorization and bioelectricity generation. BIORESOURCE TECHNOLOGY 2014; 163:280-6. [PMID: 24825315 DOI: 10.1016/j.biortech.2014.04.031] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 04/08/2014] [Accepted: 04/09/2014] [Indexed: 05/22/2023]
Abstract
This first-attempt study quantitatively assessed electron-mediating characteristics of bicyclic aromatics - 1-amino-2-naphthol, 4-amino-1-naphthol (i.e., decolorized intermediates of azo dyes - orange I and II) for color removal and power generation in MFCs. According to cyclic-voltammetric profiles, the presence of reduction and oxidation peak potentials clearly suggested a crucial role of these intermediates as electron-shuttling mediators. Shake-flask cultures also showed that appropriate accumulation of 1A2N, 4A1N apparently enhanced color-removal efficiencies of bacterial decolorization. This study clearly suggested that suitable supplementation of electrochemically active electron shuttle(s) to dye-bearing MFCs is a promising strategy to stimulate reductive decolorization and bioelectricity generation.
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Affiliation(s)
- Bin Xu
- School of Environmental and Materials Engineering, Yan-Tai University, Yantai 264005, China
| | - Bor-Yann Chen
- Department of Chemical and Materials Engineering, National I-Lan University, I-Lan 26047, Taiwan.
| | - Chung-Chuan Hsueh
- Department of Chemical and Materials Engineering, National I-Lan University, I-Lan 26047, Taiwan
| | - Lian-Jie Qin
- School of Environmental and Materials Engineering, Yan-Tai University, Yantai 264005, China
| | - Chang-Tang Chang
- Department of Environmental Engineering, National I-Lan University, I-Lan 26047, Taiwan
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206
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Zhang P, Xu D, Li Y, Yang K, Gu T. Electron mediators accelerate the microbiologically influenced corrosion of 304 stainless steel by the Desulfovibrio vulgaris biofilm. Bioelectrochemistry 2014; 101:14-21. [PMID: 25023048 DOI: 10.1016/j.bioelechem.2014.06.010] [Citation(s) in RCA: 106] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Revised: 05/16/2014] [Accepted: 06/20/2014] [Indexed: 01/24/2023]
Abstract
In the microbiologically influenced corrosion (MIC) caused by sulfate reducing bacteria (SRB), iron oxidation happens outside sessile cells while the utilization of the electrons released by the oxidation process for sulfate reduction occurs in the SRB cytoplasm. Thus, cross-cell wall electron transfer is needed. It can only be achieved by electrogenic biofilms. This work hypothesized that the electron transfer is a bottleneck in MIC by SRB. To prove this, MIC tests were carried out using 304 stainless steel coupons covered with the Desulfovibrio vulgaris (ATCC 7757) biofilm in the ATCC 1249 medium. It was found that both riboflavin and flavin adenine dinucleotide (FAD), two common electron mediators that enhance electron transfer, accelerated pitting corrosion and weight loss on the coupons when 10ppm (w/w) of either of them was added to the culture medium in 7-day anaerobic lab tests. This finding has important implications in MIC forensics and biofilm synergy in MIC that causes billions of dollars of damages to the US industry each year.
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Affiliation(s)
- Peiyu Zhang
- Department of Chemical and Biomolecular Engineering, Institute for Corrosion and Multiphase Technology, Ohio University, Athens, OH 45701, United States
| | - Dake Xu
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China.
| | - Yingchao Li
- Department of Chemical and Biomolecular Engineering, Institute for Corrosion and Multiphase Technology, Ohio University, Athens, OH 45701, United States
| | - Ke Yang
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
| | - Tingyue Gu
- Department of Chemical and Biomolecular Engineering, Institute for Corrosion and Multiphase Technology, Ohio University, Athens, OH 45701, United States.
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207
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Zhang F, Liu J, Ivanov I, Hatzell MC, Yang W, Ahn Y, Logan BE. Reference and counter electrode positions affect electrochemical characterization of bioanodes in different bioelectrochemical systems. Biotechnol Bioeng 2014; 111:1931-9. [DOI: 10.1002/bit.25253] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2013] [Revised: 03/11/2014] [Accepted: 03/27/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Fang Zhang
- Department of Civil and Environmental Engineering; Penn State University; 212 Sackett Building University Park Pennsylvania 16802
| | - Jia Liu
- Department of Civil and Environmental Engineering; Penn State University; 212 Sackett Building University Park Pennsylvania 16802
| | - Ivan Ivanov
- Department of Civil and Environmental Engineering; Penn State University; 212 Sackett Building University Park Pennsylvania 16802
| | - Marta C. Hatzell
- Department of Civil and Environmental Engineering; Penn State University; 212 Sackett Building University Park Pennsylvania 16802
| | - Wulin Yang
- Department of Civil and Environmental Engineering; Penn State University; 212 Sackett Building University Park Pennsylvania 16802
| | - Yongtae Ahn
- Department of Civil and Environmental Engineering; Penn State University; 212 Sackett Building University Park Pennsylvania 16802
- Department of Energy Engineering; Gyeongnam National University of Science and Technology; Dongjin-ro 33 Jinju Gyeongnam 660-758 Korea
| | - Bruce E. Logan
- Department of Civil and Environmental Engineering; Penn State University; 212 Sackett Building University Park Pennsylvania 16802
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208
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Lepage G, Perrier G, Ramousse J, Merlin G. First steps towards a constructal Microbial Fuel Cell. BIORESOURCE TECHNOLOGY 2014; 162:123-128. [PMID: 24747390 DOI: 10.1016/j.biortech.2014.03.139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 03/24/2014] [Accepted: 03/25/2014] [Indexed: 06/03/2023]
Abstract
In order to reach real operating conditions with consequent organic charge flow, a multi-channel reactor for Microbial Fuel Cells is designed. The feed-through double chamber reactor is a two-dimensional system with four parallel channels and Reticulated Vitreous Carbon as electrodes. Based on thermodynamical calculations, the constructal-inspired distributor is optimized with the aim to reduce entropy generation along the distributing path. In the case of negligible singular pressure drops, the Hess-Murray law links the lengths and the hydraulic diameters of the successive reducing ducts leading to one given working channel. The determination of generated entropy in the channels of our constructal MFC is based on the global hydraulic resistance caused by both regular and singular pressure drops. Polarization, power and Electrochemical Impedance Spectroscopy show the robustness and the efficiency of the cell, and therefore the potential of the constructal approach. Routes towards improvements are suggested in terms of design evolutions.
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Affiliation(s)
- Guillaume Lepage
- Laboratoire Optimisation de la Conception et Ingénierie de l'Environnement, CNRS UMR 5271, Université de Savoie, Polytech Annecy-Chambéry, 73376 Le Bourget du Lac, France
| | - Gérard Perrier
- Laboratoire Optimisation de la Conception et Ingénierie de l'Environnement, CNRS UMR 5271, Université de Savoie, Polytech Annecy-Chambéry, 73376 Le Bourget du Lac, France.
| | - Julien Ramousse
- Laboratoire Optimisation de la Conception et Ingénierie de l'Environnement, CNRS UMR 5271, Université de Savoie, Polytech Annecy-Chambéry, 73376 Le Bourget du Lac, France
| | - Gérard Merlin
- Laboratoire Optimisation de la Conception et Ingénierie de l'Environnement, CNRS UMR 5271, Université de Savoie, Polytech Annecy-Chambéry, 73376 Le Bourget du Lac, France
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209
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Cheng S, Liu W, Guo J, Sun D, Pan B, Ye Y, Ding W, Huang H, Li F. Effects of hydraulic pressure on the performance of single chamber air-cathode microbial fuel cells. Biosens Bioelectron 2014; 56:264-70. [DOI: 10.1016/j.bios.2014.01.036] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Accepted: 01/17/2014] [Indexed: 10/25/2022]
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210
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Application of carbon black and iron phthalocyanine composites in bioelectricity production at a brewery wastewater fed microbial fuel cell. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2013.11.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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211
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Hallenbeck PC, Grogger M, Veverka D. Recent Advances in Microbial Electrocatalysis. Electrocatalysis (N Y) 2014. [DOI: 10.1007/s12678-014-0198-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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212
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Gao Y, An J, Ryu H, Lee HS. Microbial fuel cells as discontinuous portable power sources: syntropic interactions with anode-respiring bacteria. CHEMSUSCHEM 2014; 7:1026-1029. [PMID: 24574020 DOI: 10.1002/cssc.201301085] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Indexed: 06/03/2023]
Abstract
For microbial fuel cells (MFCs) to work as portable power sources used in a discontinuous manner, anode-respiring bacteria (ARB) should survive for at least several days in the absence of exogenous electron donors, and immediately generate current upon addition of an electron donor. Here, we proved that biopolymer-accumulating bacteria provide substrate (fuel) for ARB to generate current in lack of exogenous electron donor in 4 days, which allows MFCs to be used as portable power sources.
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Affiliation(s)
- Yaohuan Gao
- University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1 (Canada)
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213
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Natural occurrence of microbial sulphur oxidation by long-range electron transport in the seafloor. ISME JOURNAL 2014; 8:1843-54. [PMID: 24671086 PMCID: PMC4139731 DOI: 10.1038/ismej.2014.41] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 02/04/2014] [Accepted: 02/16/2014] [Indexed: 11/26/2022]
Abstract
Recently, a novel mode of sulphur oxidation was described in marine sediments, in which sulphide oxidation in deeper anoxic layers was electrically coupled to oxygen reduction at the sediment surface. Subsequent experimental evidence identified that long filamentous bacteria belonging to the family Desulfobulbaceae likely mediated the electron transport across the centimetre-scale distances. Such long-range electron transfer challenges some long-held views in microbial ecology and could have profound implications for sulphur cycling in marine sediments. But, so far, this process of electrogenic sulphur oxidation has been documented only in laboratory experiments and so its imprint on the seafloor remains unknown. Here we show that the geochemical signature of electrogenic sulphur oxidation occurs in a variety of coastal sediment environments, including a salt marsh, a seasonally hypoxic basin, and a subtidal coastal mud plain. In all cases, electrogenic sulphur oxidation was detected together with an abundance of Desulfobulbaceae filaments. Complementary laboratory experiments in intertidal sands demonstrated that mechanical disturbance by bioturbating fauna destroys the electrogenic sulphur oxidation signal. A survey of published geochemical data and 16S rRNA gene sequences identified that electrogenic sulphide oxidation is likely present in a variety of marine sediments with high sulphide generation and restricted bioturbation, such as mangrove swamps, aquaculture areas, seasonally hypoxic basins, cold sulphide seeps and possibly hydrothermal vent environments. This study shows for the first time that electrogenic sulphur oxidation occurs in a wide range of marine sediments and that bioturbation may exert a dominant control on its natural distribution.
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214
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Paul VG, Minteer SD, Treu BL, Mormile MR. Ability of a haloalkaliphilic bacterium isolated from Soap Lake, Washington to generate electricity at pH 11.0 and 7% salinity. ENVIRONMENTAL TECHNOLOGY 2014; 35:1003-1011. [PMID: 24645484 DOI: 10.1080/09593330.2013.858186] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A variety of anaerobic bacteria have been shown to transfer electrons obtained from organic compound oxidation to the surface of electrodes in microbial fuel cells (MFCs) to produce current. Initial enrichments for iron (III) reducing bacteria were set up with sediments from the haloalkaline environment of Soap Lake, Washington, in batch cultures and subsequent transfers resulted in a culture that grew optimally at 7.0% salinity and pH 11.0. The culture was used to inoculate the anode chamber of a MFC with formate as the electron source. Current densities up to 12.5 mA/m2 were achieved by this bacterium. Cyclic voltammetry experiments demonstrated that an electron mediator, methylene blue, was required to transfer electrons to the anode. Scanning electron microscopic imaging of the electrode surface did not reveal heavy colonization of bacteria, providing evidence that the bacterium may be using an indirect mode of electron transfer to generate current. Molecular characterization of the 16S rRNA gene and restriction fragment length profiles (RFLP) analysis showed that the MFC enriched for a single bacterial species with a 99% similarity to the 16S rRNA gene of Halanaerobium hydrogeniformans. Though modest, electricity production was achieved by a haloalkaliphilic bacterium at pH 11.0 and 7.0% salinity.
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215
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Pandit S, Balachandar G, Das D. Improved energy recovery from dark fermented cane molasses using microbial fuel cells. Front Chem Sci Eng 2014. [DOI: 10.1007/s11705-014-1403-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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216
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Metabolic Efficiency of Geobacter sulfurreducens Growing on Anodes with Different Redox Potentials. Curr Microbiol 2014; 68:763-8. [DOI: 10.1007/s00284-014-0539-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Accepted: 12/24/2013] [Indexed: 11/30/2022]
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217
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Pradhan H, Ghangrekar M. Organic matter and dissolved salts removal in a microbial desalination cell with different orientation of ion exchange membranes. DESALINATION AND WATER TREATMENT 2014. [DOI: 10.1080/19443994.2014.888682] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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218
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Zhang X, Xia X, Ivanov I, Huang X, Logan BE. Enhanced activated carbon cathode performance for microbial fuel cell by blending carbon black. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2014; 48:2075-81. [PMID: 24422458 DOI: 10.1021/es405029y] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Activated carbon (AC) is a useful and environmentally sustainable catalyst for oxygen reduction in air-cathode microbial fuel cells (MFCs), but there is great interest in improving its performance and longevity. To enhance the performance of AC cathodes, carbon black (CB) was added into AC at CB:AC ratios of 0, 2, 5, 10, and 15 wt % to increase electrical conductivity and facilitate electron transfer. AC cathodes were then evaluated in both MFCs and electrochemical cells and compared to reactors with cathodes made with Pt. Maximum power densities of MFCs were increased by 9-16% with CB compared to the plain AC in the first week. The optimal CB:AC ratio was 10% based on both MFC polarization tests and three electrode electrochemical tests. The maximum power density of the 10% CB cathode was initially 1560 ± 40 mW/m(2) and decreased by only 7% after 5 months of operation compared to a 61% decrease for the control (Pt catalyst, 570 ± 30 mW/m(2) after 5 months). The catalytic activities of Pt and AC (plain or with 10% CB) were further examined in rotating disk electrode (RDE) tests that minimized mass transfer limitations. The RDE tests showed that the limiting current of the AC with 10% CB was improved by up to 21% primarily due to a decrease in charge transfer resistance (25%). These results show that blending CB in AC is a simple and effective strategy to enhance AC cathode performance in MFCs and that further improvement in performance could be obtained by reducing mass transfer limitations.
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Affiliation(s)
- Xiaoyuan Zhang
- Department of Civil & Environmental Engineering, Penn State University , 231Q Sackett Building, University Park, Pennsylvania 16802, United States
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219
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Sun G, Thygesen A, Ale MT, Mensah M, Poulsen FW, Meyer AS. The significance of the initiation process parameters and reactor design for maximizing the efficiency of microbial fuel cells. Appl Microbiol Biotechnol 2014; 98:2415-27. [PMID: 24435643 DOI: 10.1007/s00253-013-5486-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Revised: 12/19/2013] [Accepted: 12/20/2013] [Indexed: 11/28/2022]
Abstract
Microbial fuel cells (MFCs) can be used for electricity generation via bioconversion of wastewater and organic waste substrates. MFCs also hold potential for production of certain chemicals, such as H2 and H2O2. The studies of electricity generation in MFCs have mainly focused on the microbial community formation, substrate effect on the anode reaction, and the cathode's catalytic properties. To improve the performance of MFCs, the initiation process requires more investigation because of its significant effect on the anodic biofilm formation. This review explores the factors which affect the initiation process, including inoculum, substrate, and reactor configuration. The key messages are that optimal performance of MFCs for electricity production requires (1) understanding of the electrogenic bacterial biofilm formation, (2) proper substrates at the initiation stage, (3) focus on operational conditions affecting initial biofilm formation, and (4) attention to the reactor configuration.
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Affiliation(s)
- Guotao Sun
- Department of Chemical and Biochemical Engineering, Technical University of Denmark, Søltofts Plads 229, Kongens Lyngby, 2800, Denmark
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220
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Enhancement of bioelectricity generation by cofactor manipulation in microbial fuel cell. Biosens Bioelectron 2014; 56:19-25. [PMID: 24445069 DOI: 10.1016/j.bios.2013.12.058] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 11/25/2013] [Accepted: 12/09/2013] [Indexed: 11/21/2022]
Abstract
Microbial fuel cells (MFCs) are promising for harnessing bioenergy from various organic wastes. However, low electricity power output (EPT) is one of the major bottlenecks in the practical application of MFCs. In this study, EPT improvement by cofactor manipulation was explored in the Pseudomonas aeruginosa-inoculated MFCs. By overexpression of nadE (NAD synthetase gene), the availability of the intracellular cofactor pool (NAD(H/(+))) significantly increased, and delivered approximately three times higher power output than the original strain (increased from 10.86 μW/cm(2) to 40.13 μW/cm(2)). The nadE overexpression strain showed about a onefold decrease in charge transfer resistance and higher electrochemical activity than the original strain, which should underlie the power output improvement. Furthermore, cyclic voltammetry, HPLC, and LC-MS analysis showed that the concentration of the electron shuttle (pyocyanin) increased approximately 1.5 fold upon nadE overexpression, which was responsible for the enhanced electrochemical activity. Thus, the results substantiated that the manipulation of intracellular cofactor could be an efficient approach to improve the EPT of MFCs, and implied metabolic engineering is of great potential for EPT improvement.
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221
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Du Y, Feng Y, Dong Y, Qu Y, Liu J, Zhou X, Ren N. Coupling interaction of cathodic reduction and microbial metabolism in aerobic biocathode of microbial fuel cell. RSC Adv 2014. [DOI: 10.1039/c4ra03441d] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Certain mixed consortia colonized on aerobic biocathodes can improve the 4-electron oxygen reduction of cathodes; however, the coupling interaction of the cathodic reaction and microbial metabolism remains unclear.
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Affiliation(s)
- Yue Du
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin 150090, China
| | - Yujie Feng
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin 150090, China
| | - Yue Dong
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin 150090, China
| | - Youpeng Qu
- School of Life Science and Technology
- Harbin Institute of Technology
- Harbin 150080, China
| | - Jia Liu
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin 150090, China
| | - Xiangtong Zhou
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin 150090, China
| | - Nanqi Ren
- State Key Laboratory of Urban Water Resource and Environment
- Harbin Institute of Technology
- Harbin 150090, China
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222
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Ghach W, Etienne M, Urbanova V, Jorand FP, Walcarius A. Sol–gel based ‘artificial’ biofilm from Pseudomonas fluorescens using bovine heart cytochrome c as electron mediator. Electrochem commun 2014. [DOI: 10.1016/j.elecom.2013.11.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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223
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Kuzume A, Zhumaev U, Li J, Fu Y, Füeg M, Estévez M, Borjas Z, Wandlowski T, Esteve-Nuñez A. An in situ surface electrochemistry approach towards whole-cell studies: the structure and reactivity of a Geobacter sulfurreducens submonolayer on electrified metal/electrolyte interfaces. Phys Chem Chem Phys 2014; 16:22229-36. [DOI: 10.1039/c4cp03357d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Characterisation of direct electron transfer processes between Geobacter sulfurreducens and the Au(111) surface was performed under electrochemical control.
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Affiliation(s)
- Akiyoshi Kuzume
- Department of Chemistry and Biochemistry
- University of Bern
- 3012 Bern, Switzerland
| | - Ulmas Zhumaev
- Department of Chemistry and Biochemistry
- University of Bern
- 3012 Bern, Switzerland
| | - Jianfeng Li
- Department of Chemistry and Biochemistry
- University of Bern
- 3012 Bern, Switzerland
| | - Yongchun Fu
- Department of Chemistry and Biochemistry
- University of Bern
- 3012 Bern, Switzerland
| | - Michael Füeg
- Department of Chemistry and Biochemistry
- University of Bern
- 3012 Bern, Switzerland
| | - Marta Estévez
- Department of Chemical Engineering
- University of Alcalá
- 28871 Alcalá de Heranes, Spain
| | - Zulema Borjas
- Department of Chemical Engineering
- University of Alcalá
- 28871 Alcalá de Heranes, Spain
- IMDEA WATER
- Parque Tecnológico de Alcalá
| | - Thomas Wandlowski
- Department of Chemistry and Biochemistry
- University of Bern
- 3012 Bern, Switzerland
| | - Abraham Esteve-Nuñez
- Department of Chemical Engineering
- University of Alcalá
- 28871 Alcalá de Heranes, Spain
- IMDEA WATER
- Parque Tecnológico de Alcalá
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224
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Liu XW, Li WW, Yu HQ. Cathodic catalysts in bioelectrochemical systems for energy recovery from wastewater. Chem Soc Rev 2014; 43:7718-45. [DOI: 10.1039/c3cs60130g] [Citation(s) in RCA: 183] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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225
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Kuzume A, Zhumaev U, Li J, Fu Y, Füeg M, Esteve-Nuñez A, Wandlowski T. An in-situ surface electrochemistry approach toward whole-cell studies: Charge transfer between Geobacter sulfurreducens and electrified metal/electrolyte interfaces through linker molecules. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.02.073] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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226
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Functionalization of electrochemically deposited chitosan films with alginate and Prussian blue for enhanced performance of microbial fuel cells. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.08.180] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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227
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Renslow R, Babauta J, Kuprat A, Schenk J, Ivory C, Fredrickson J, Beyenal H. Modeling biofilms with dual extracellular electron transfer mechanisms. Phys Chem Chem Phys 2013; 15:19262-83. [PMID: 24113651 PMCID: PMC3868370 DOI: 10.1039/c3cp53759e] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrochemically active biofilms have a unique form of respiration in which they utilize solid external materials as terminal electron acceptors for their metabolism. Currently, two primary mechanisms have been identified for long-range extracellular electron transfer (EET): a diffusion- and a conduction-based mechanism. Evidence in the literature suggests that some biofilms, particularly Shewanella oneidensis, produce the requisite components for both mechanisms. In this study, a generic model is presented that incorporates the diffusion- and the conduction-based mechanisms and allows electrochemically active biofilms to utilize both simultaneously. The model was applied to S. oneidensis and Geobacter sulfurreducens biofilms using experimentally generated data found in the literature. Our simulation results show that (1) biofilms having both mechanisms available, especially if they can interact, may have a metabolic advantage over biofilms that can use only a single mechanism; (2) the thickness of G. sulfurreducens biofilms is likely not limited by conductivity; (3) accurate intrabiofilm diffusion coefficient values are critical for current generation predictions; and (4) the local biofilm potential and redox potential are two distinct parameters and cannot be assumed to have identical values. Finally, we determined that simulated cyclic and squarewave voltammetry based on our model are currently not capable of determining the specific percentages of extracellular electron transfer mechanisms in a biofilm. The developed model will be a critical tool for designing experiments to explain EET mechanisms.
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Affiliation(s)
- Ryan Renslow
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, 118 Dana Hall Spokane St., P.O. Box 642710, Pullman, WA 99164-2710, USA.
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228
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Probing single- to multi-cell level charge transport in Geobacter sulfurreducens DL-1. Nat Commun 2013; 4:2751. [DOI: 10.1038/ncomms3751] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Accepted: 10/10/2013] [Indexed: 02/03/2023] Open
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229
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Yong XY, Shi DY, Chen YL, Feng J, Xu L, Zhou J, Wang SY, Yong YC, Sun YM, OuYang PK, Zheng T. Enhancement of bioelectricity generation by manipulation of the electron shuttles synthesis pathway in microbial fuel cells. BIORESOURCE TECHNOLOGY 2013; 152:220-224. [PMID: 24292201 DOI: 10.1016/j.biortech.2013.10.086] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2013] [Revised: 10/24/2013] [Accepted: 10/28/2013] [Indexed: 06/02/2023]
Abstract
Microbial fuel cells (MFCs) are promising for generating bioenergy and treating organic waste simultaneously. However, low extracellular electron transfer (EET) efficiency between electrogens and anodes remains one of the major bottlenecks in practical applications of MFCs. In this paper, pyocyanin (PYO) synthesis pathway was manipulated to improve the EET efficiency in Pseudomonas aeruginosa-inoculated MFCs. By overexpression of phzM (methyltransferase encoding gene), the maximum power density of P. aeruginosa-phzM-inoculated MFC was enhanced to 166.68 μW/cm(2), which was four folds of the original strain. In addition, the phzM overexpression strain exhibited an increase of 1.6 folds in PYO production and about a onefold decrease in the total internal resistance than the original strain, which should underlie the enhancement of the EET efficiency and the electricity power output (EPT). On the basis of these results, the manipulation of electron shuttles synthesis pathways could be an efficient approach to improve the EPT of MFCs.
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Affiliation(s)
- Xiao-Yu Yong
- College of Biotechnology and Pharmaceutical Engineering, Nanjing University of Technology, Nanjing 210095, China; Bioenergy Research Institute, Nanjing University of Technology, Nanjing 210095, China.
| | - Dong-Yan Shi
- College of Biotechnology and Pharmaceutical Engineering, Nanjing University of Technology, Nanjing 210095, China
| | - Yi-Lu Chen
- College of Biotechnology and Pharmaceutical Engineering, Nanjing University of Technology, Nanjing 210095, China
| | - Jiao Feng
- College of Biotechnology and Pharmaceutical Engineering, Nanjing University of Technology, Nanjing 210095, China
| | - Lin Xu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing University of Technology, Nanjing 210095, China
| | - Jun Zhou
- College of Biotechnology and Pharmaceutical Engineering, Nanjing University of Technology, Nanjing 210095, China; Bioenergy Research Institute, Nanjing University of Technology, Nanjing 210095, China
| | - Shu-Ya Wang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing University of Technology, Nanjing 210095, China; Bioenergy Research Institute, Nanjing University of Technology, Nanjing 210095, China
| | - Yang-Chun Yong
- Biofuels Institute, School of the Environment, Jiangsu University, Zhenjiang 212013, China
| | - Yong-Ming Sun
- Guangzhou Institute of Energy Conversion, Key Laboratory of Renewable Energy, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Ping-Kai OuYang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing University of Technology, Nanjing 210095, China; Bioenergy Research Institute, Nanjing University of Technology, Nanjing 210095, China
| | - Tao Zheng
- College of Biotechnology and Pharmaceutical Engineering, Nanjing University of Technology, Nanjing 210095, China; Bioenergy Research Institute, Nanjing University of Technology, Nanjing 210095, China.
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230
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Fernández de Dios MÁ, del Campo AG, Fernández FJ, Rodrigo M, Pazos M, Sanromán MÁ. Bacterial-fungal interactions enhance power generation in microbial fuel cells and drive dye decolourisation by an ex situ and in situ electro-Fenton process. BIORESOURCE TECHNOLOGY 2013; 148:39-46. [PMID: 24035817 DOI: 10.1016/j.biortech.2013.08.084] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Revised: 08/10/2013] [Accepted: 08/14/2013] [Indexed: 06/02/2023]
Abstract
In this work, the potential for sustainable energy production from wastes has been exploited using a combination fungus-bacterium in microbial fuel cell (MFC) and electro-Fenton technology. The fungus Trametes versicolor was grown with Shewanella oneidensis so that the bacterium would use the networks of the fungus to transport the electrons to the anode. This system generated stable electricity that was enhanced when the electro-Fenton reactions occurred in the cathode chamber. This configuration reached a stable voltage of approximately 1000 mV. Thus, the dual benefits of the in situ-designed MFC electro-Fenton, the simultaneous dye decolourisation and the electricity generation, were demonstrated. Moreover, the generated power was effectively used to drive an ex situ electro-Fenton process in batch and continuous mode. This newly developed MFC fungus-bacterium with an in situ electro-Fenton system can ensure a high power output and a continuous degradation of organic pollutants.
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231
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Sciarria TP, Tenca A, D'Epifanio A, Mecheri B, Merlino G, Barbato M, Borin S, Licoccia S, Garavaglia V, Adani F. Using olive mill wastewater to improve performance in producing electricity from domestic wastewater by using single-chamber microbial fuel cell. BIORESOURCE TECHNOLOGY 2013; 147:246-253. [PMID: 23999258 DOI: 10.1016/j.biortech.2013.08.033] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Revised: 07/31/2013] [Accepted: 08/05/2013] [Indexed: 06/02/2023]
Abstract
Improving electricity generation from wastewater (DW) by using olive mill wastewater (OMW) was evaluated using single-chamber microbial fuel cells (MFC). Doing so single-chambers air cathode MFCs with platinum anode were fed with domestic wastewater (DW) alone and mixed with OMW at the ratio of 14:1 (w/w). MFCs fed with DW+OMW gave 0.38 V at 1 kΩ, while power density from polarization curve was of 124.6 mW m(-2). The process allowed a total reduction of TCOD and BOD5 of 60% and 69%, respectively, recovering the 29% of the coulombic efficiency. The maximum voltage obtained from MFC fed with DW+OMW was 2.9 times higher than that of cell fed with DW. DNA-fingerprinting showed high bacterial diversity for both experiments and the presence on anodes of exoelectrogenic bacteria, such as Geobacter spp. Electrodes selected peculiar consortia and, in particular, anodes of both experiments showed a similar specialization of microbial communities independently by feeding used.
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Affiliation(s)
- Tommy Pepè Sciarria
- RICICLA GROUP, Dipartimento di Scienze Agrarie e Ambientali: Produzione, Territorio, Agroenergia, Via Celoria 2, 20133 Milan, Italy; NAST Centre & Department of Chemical Science and Technology, University of Rome Tor Vergata, Rome, Italy
| | - Alberto Tenca
- RICICLA GROUP, Dipartimento di Scienze Agrarie e Ambientali: Produzione, Territorio, Agroenergia, Via Celoria 2, 20133 Milan, Italy
| | - Alessandra D'Epifanio
- NAST Centre & Department of Chemical Science and Technology, University of Rome Tor Vergata, Rome, Italy
| | - Barbara Mecheri
- NAST Centre & Department of Chemical Science and Technology, University of Rome Tor Vergata, Rome, Italy
| | - Giuseppe Merlino
- Department of Food Environmental and Nutritional Sciences (DEFENS), University of Milan, Celoria 2, 20133 Milan, Italy
| | - Marta Barbato
- Department of Food Environmental and Nutritional Sciences (DEFENS), University of Milan, Celoria 2, 20133 Milan, Italy
| | - Sara Borin
- Department of Food Environmental and Nutritional Sciences (DEFENS), University of Milan, Celoria 2, 20133 Milan, Italy
| | - Silvia Licoccia
- NAST Centre & Department of Chemical Science and Technology, University of Rome Tor Vergata, Rome, Italy
| | - Virgilio Garavaglia
- RICICLA GROUP, Dipartimento di Scienze Agrarie e Ambientali: Produzione, Territorio, Agroenergia, Via Celoria 2, 20133 Milan, Italy
| | - Fabrizio Adani
- RICICLA GROUP, Dipartimento di Scienze Agrarie e Ambientali: Produzione, Territorio, Agroenergia, Via Celoria 2, 20133 Milan, Italy.
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232
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Carmona-Martínez AA, Harnisch F, Kuhlicke U, Neu TR, Schröder U. Electron transfer and biofilm formation of Shewanella putrefaciens as function of anode potential. Bioelectrochemistry 2013; 93:23-9. [DOI: 10.1016/j.bioelechem.2012.05.002] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2012] [Revised: 04/23/2012] [Accepted: 05/03/2012] [Indexed: 12/19/2022]
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233
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Khilari S, Pandit S, Ghangrekar MM, Pradhan D, Das D. Graphene Oxide-Impregnated PVA–STA Composite Polymer Electrolyte Membrane Separator for Power Generation in a Single-Chambered Microbial Fuel Cell. Ind Eng Chem Res 2013. [DOI: 10.1021/ie4016045] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Santimoy Khilari
- Materials
Science Centre, §Department of Biotechnology, and ∥Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur-721302, India
| | - Soumya Pandit
- Materials
Science Centre, §Department of Biotechnology, and ∥Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur-721302, India
| | - Makarand M. Ghangrekar
- Materials
Science Centre, §Department of Biotechnology, and ∥Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur-721302, India
| | - Debabrata Pradhan
- Materials
Science Centre, §Department of Biotechnology, and ∥Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur-721302, India
| | - Debabrata Das
- Materials
Science Centre, §Department of Biotechnology, and ∥Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur-721302, India
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234
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Zhang X, Shi J, Liang P, Wei J, Huang X, Zhang C, Logan BE. Power generation by packed-bed air-cathode microbial fuel cells. BIORESOURCE TECHNOLOGY 2013; 142:109-114. [PMID: 23732924 DOI: 10.1016/j.biortech.2013.05.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Revised: 05/03/2013] [Accepted: 05/05/2013] [Indexed: 06/02/2023]
Abstract
Catalysts and catalyst binders are significant portions of the cost of microbial fuel cell (MFC) cathodes. Many materials have been tested as aqueous cathodes, but air-cathodes are needed to avoid energy demands for water aeration. Packed-bed air-cathodes were constructed without expensive binders or diffusion layers using four inexpensive carbon-based materials. Cathodes made from activated carbon produced the largest maximum power density of 676 ± 93 mW/m(2), followed by semi-coke (376 ± 47 mW/m(2)), graphite (122 ± 14 mW/m(2)) and carbon felt (60 ± 43 mW/m(2)). Increasing the mass of activated carbon and semi-coke from 5 to ≥ 15 g significantly reduced power generation because of a reduction in oxygen transfer due to a thicker water layer in the cathode (∼3 or ∼6 cm). These results indicate that a thin packed layer of activated carbon or semi-coke can be used to make inexpensive air-cathodes for MFCs.
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Affiliation(s)
- Xiaoyuan Zhang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, THU-VEOLIA Environment Joint Research Center for Advanced Environmental Technology, School of Environment, Tsinghua University, Beijing 100084, PR China
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235
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Mao L, Verwoerd WS. Genome-scale stoichiometry analysis to elucidate the innate capability of the cyanobacterium Synechocystis for electricity generation. J Ind Microbiol Biotechnol 2013; 40:1161-80. [PMID: 23851491 DOI: 10.1007/s10295-013-1308-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Accepted: 06/20/2013] [Indexed: 12/25/2022]
Abstract
Synechocystis sp. PCC 6803 has been considered as a promising biocatalyst for electricity generation in recent microbial fuel cell research. However, the innate maximum current production potential and underlying metabolic pathways supporting the high current output are still unknown. This is mainly due to the fact that the high-current production cell phenotype results from the interaction among hundreds of reactions in the metabolism and it is impossible for reductionist methods to characterize the pathway selection in such a metabolic state. In this study, we employed computational metabolic techniques, flux balance analysis, and flux variability analysis, to exploit the maximum current outputs of Synechocystis sp. PCC 6803, in five electron transfer cases, namely, ferredoxin- and plastoquinol-dependent electron transfers under photoautotrophic cultivation, and NADH-dependent mediated electron transfer under photoautotrophic, heterotrophic, and mixotrophic conditions. In these five modes, the maximum current outputs were computed as 0.198, 0.7918, 0.198, 0.4652, and 0.4424 A gDW⁻¹, respectively. Comparison of the five operational modes suggests that plastoquinol-/c-type cytochrome-targeted electricity generation had an advantage of liberating the highest current output achievable for Synechocystis sp. PCC 6803. On the other hand, the analysis indicates that the currency metabolite, NADH-, dependent electricity generation can rely on a number of reactions from different pathways, and is thus more robust against environmental perturbations.
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Affiliation(s)
- Longfei Mao
- Centre for Advanced Computational Solutions, Department of Molecular Biosciences, Lincoln University, Ellesmere Junction Road, Lincoln, 7647, New Zealand,
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236
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Dhar BR, Lee HS. Membranes for bioelectrochemical systems: challenges and research advances. ENVIRONMENTAL TECHNOLOGY 2013; 34:1751-1764. [PMID: 24350432 DOI: 10.1080/09593330.2013.822007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Increasing energy demand has been a big challenge for current society, as the fossil fuel sources are gradually decreasing. Hence, development of renewable and sustainable energy sources for the future is considered one of the top priorities in national strategic plans. Bioenergy can meet future energy requirements - renewability, sustainability, and even carbon-neutrality. Bioenergy production from wastes and wastewaters is especially attractive because of dual benefits of energy generation and contaminant stabilization. There are several bioenergy technologies using wastes and wastewaters as electron donor, which include anaerobic digestion, dark biohydrogen fermentation, biohydrogen production using photosynthetic microorganisms, and bioelectrochemical systems (BESs). Among them BES seems to be very promising as we can produce a variety of value-added products from wastes and wastewaters, such as electric power, hydrogen gas, hydrogen peroxide, acetate, ethanol etc. Most ofthe traditional BES uses a membrane to separate the anode and cathode chamber, which is essential for improving microbial metabolism on the anode and the recovery of value-added products on the cathode. Performance of BES lacking a membrane can be seriously deteriorated, due to oxygen diffusion or substantial loss of synthesized products. For this reason, usage of a membrane seems essential to facilitate BES performance. However, a membrane can bring several technical challenges to BES application compared to membrane-less BES. These challenges include poor proton permeability, substrate loss, oxygen back diffusion, pH gradient, internal resistance, biofouling, etc. This paper aims to review the major technical barriers associated with membranes and future research directions for their application in BESs.
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Affiliation(s)
- Bipro Ranjan Dhar
- Civil & Environmental Engineering Department, University of Waterloo, 200 University Avenue West, Waterloo, ON Canada N2L 3G1.
| | - Hyung-Sool Lee
- Civil & Environmental Engineering Department, University of Waterloo, 200 University Avenue West, Waterloo, ON Canada N2L 3G1
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237
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Luo J, Yang J, He H, Jin T, Zhou L, Wang M, Zhou M. A new electrochemically active bacterium phylogenetically related to Tolumonas osonensis and power performance in MFCs. BIORESOURCE TECHNOLOGY 2013; 139:141-148. [PMID: 23651598 DOI: 10.1016/j.biortech.2013.04.031] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Revised: 04/07/2013] [Accepted: 04/08/2013] [Indexed: 06/02/2023]
Abstract
A facultative anaerobic bacterium (designated as P2-A-1) was isolated from microbial fuel cells (MFCs) inoculated with sludge from a sewage treatment plant. Based on 16S rDNA sequence analysis, the strain was identified as Tolumonas osonensis OCF 7(T) according to its biochemical, physiological and morphological characteristics. Through parameters optimization, the P2-A-1 MFC reached the maximum power density of 424 mW/m(2) in the substrate of 2g/L sodium acetate. Further, a facile bacteria treatment approach by chemically "perforating" pores and channels on bacterial membrane was developed to significantly improve the power density. And 1mM of EDTA-treated cell yielded the highest power density of 509.1 mW/m(2) because the membrane permeability of cell was enhanced by verification of coenzyme Q and fatty acid composition tests. It offers a novel facultative anaerobic Gram-positive bacterium that can utilize a wide variety of substrates for power production, making it highly valuable for application in MFCs.
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Affiliation(s)
- Jianmei Luo
- Key Laboratory of Industrial Fermentation Microbiology (Tianjin University of Science & Technology), Ministry of Education, Tianjin Key Lab of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, PR China.
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238
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Peng S, Liang DW, Diao P, Liu Y, Lan F, Yang Y, Lu S, Xiang Y. Nernst-ping-pong model for evaluating the effects of the substrate concentration and anode potential on the kinetic characteristics of bioanode. BIORESOURCE TECHNOLOGY 2013; 136:610-616. [PMID: 23567738 DOI: 10.1016/j.biortech.2013.03.073] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Revised: 03/06/2013] [Accepted: 03/09/2013] [Indexed: 06/02/2023]
Abstract
Understanding the electron-transfer mechanism and kinetic characteristics of bioanodes is greatly significant to enhance the electron-generating efficiencies in bioelectrochemical systems (BESs). A Nernst-ping-pong model is proposed here to investigate the kinetics and biochemical processes of bioanodes in a microbial electrolysis cell. This model can accurately describe the effects of the substrate (including substrate inhibition) and the anode potential on the current of bioanodes. Results show that the half-wave potential positively shifts as the substrate concentration increases, indicating that the rate-determining steps of anodic processes change from substrate oxidation to intracellular electron transport reaction. The anode potential has negligible effects on the enzymatic catalysis of anodic microbes in the range of -0.25 V to +0.1 V vs. a saturated calomel electrode. It turns out that to reduce the anodic energy loss caused by overpotential, higher substrate concentrations are preferred, if the substrate do not significantly and adversely affect the output current.
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Affiliation(s)
- Sikan Peng
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry & Environment, Beihang University, Beijing 100191, PR China
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239
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Shen Y, Wang M, Chang IS, Ng HY. Effect of shear rate on the response of microbial fuel cell toxicity sensor to Cu(II). BIORESOURCE TECHNOLOGY 2013; 136:707-710. [PMID: 23558184 DOI: 10.1016/j.biortech.2013.02.069] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Revised: 02/19/2013] [Accepted: 02/20/2013] [Indexed: 06/02/2023]
Abstract
A microbial fuel cell (MFC) was successfully developed as a toxicity biomonitoring system, giving a quick response to Cu(II) toxic events. The objective was to increase MFC sensitivity to Cu(II) toxicity by evaluating the impact of shear rate caused by mixing and intermittent nitrogen sparging on the biofilm structure. Low shear rate - achieved by continuously feeding the wastewater into the MFC at a low flow rate of 1.3 mL min(-1) during the enrichment period - resulted in low biomass density (124 g VSS L(-1) of biofilm), high porosity and reduced levels of extracellular polymeric substances (EPS). Consequently, the sensitivity was improved. Scattered nitrogen sparging also increased the sensitivity by reducing the EPS level. It suggested that MFC enriched under low flow rate with intermittent nitrogen sparging could produce an anodic biofilm that was less dense, more porous, contained less EPS and ultimately displayed higher sensitivity to Cu(II) toxicity.
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Affiliation(s)
- Yujia Shen
- Centre for Water Research, Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Dr. 2, Singapore 117576, Singapore
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240
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Microfabricated devices in microbial bioenergy sciences. Trends Biotechnol 2013; 31:225-32. [DOI: 10.1016/j.tibtech.2012.12.002] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Revised: 12/01/2012] [Accepted: 12/11/2012] [Indexed: 01/18/2023]
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241
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Feng Y, Kayode O, Harper WF. Using microbial fuel cell output metrics and nonlinear modeling techniques for smart biosensing. THE SCIENCE OF THE TOTAL ENVIRONMENT 2013; 449:223-228. [PMID: 23428752 DOI: 10.1016/j.scitotenv.2013.01.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Revised: 12/12/2012] [Accepted: 01/01/2013] [Indexed: 06/01/2023]
Abstract
Microbial fuel cells (MFCs) are promising tools for water quality monitoring but the response peaks have not been characterized and the data processing methods require improvement. In this study MFC-based biosensing was integrated with two nonlinear programming methods, artificial neural networks (ANN) and time series analysis (TSA). During laboratory testing, the MFCs generated well-organized normally-distributed peaks when the influent chemical oxygen demand (COD) was 150 mg/L or less, and multi-peak signals when the influent COD was 200 mg/L. The area under the response peak correlated well with the influent COD concentration. During field testing, we observed normally-distributed and multi-peak profiles at low COD concentrations. The ANN predicted the COD concentration without error with just one layer of hidden neurons, and the TSA model predicted the temporal trends present in properly functioning MFCs and in a device that was gradually failing. This report is the first to integrate ANN and TSA with MFC-based biosensing.
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Affiliation(s)
- Yinghua Feng
- Department of Civil and Environmental Engineering, University of Pittsburgh, Swanson School of Engineering, 3700 O'Hara St., Pittsburgh, PA 15261, USA
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242
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Zhang F, Xia X, Luo Y, Sun D, Call DF, Logan BE. Improving startup performance with carbon mesh anodes in separator electrode assembly microbial fuel cells. BIORESOURCE TECHNOLOGY 2013; 133:74-81. [PMID: 23425580 DOI: 10.1016/j.biortech.2013.01.036] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 12/29/2012] [Accepted: 01/05/2013] [Indexed: 06/01/2023]
Abstract
In a separator electrode assembly microbial fuel cell, oxygen crossover from the cathode inhibits current generation by exoelectrogenic bacteria, resulting in poor reactor startup and performance. To determine the best approach for improving startup performance, the effect of acclimation to a low set potential (-0.2V, versus standard hydrogen electrode) was compared to startup at a higher potential (+0.2 V) or no set potential, and inoculation with wastewater or pre-acclimated cultures. Anodes acclimated to -0.2 V produced the highest power of 1330±60 mW m(-2) for these different anode conditions, but unacclimated wastewater inocula produced inconsistent results despite the use of this set potential. By inoculating reactors with transferred cell suspensions, however, startup time was reduced and high power was consistently produced. These results show that pre-acclimation at -0.2 V consistently improves power production compared to use of a more positive potential or the lack of a set potential.
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Affiliation(s)
- Fang Zhang
- Department of Civil and Environmental Engineering, Penn State University, University Park, PA 16802, USA
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243
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Solution structure of a mutant of the triheme cytochrome PpcA from Geobacter sulfurreducens sheds light on the role of the conserved aromatic residue F15. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2013; 1827:484-92. [DOI: 10.1016/j.bbabio.2012.12.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Revised: 12/11/2012] [Accepted: 12/14/2012] [Indexed: 11/22/2022]
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244
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Beckers L, Hiligsmann S, Lambert SD, Heinrichs B, Thonart P. Improving effect of metal and oxide nanoparticles encapsulated in porous silica on fermentative biohydrogen production by Clostridium butyricum. BIORESOURCE TECHNOLOGY 2013; 133:109-17. [PMID: 23428815 DOI: 10.1016/j.biortech.2012.12.168] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Revised: 12/23/2012] [Accepted: 12/26/2012] [Indexed: 05/09/2023]
Abstract
This paper investigated the enhancement effect of nanometre-sized metallic (Pd, Ag and Cu) or metallic oxide (FexOy) nanoparticles on fermentative hydrogen production from glucose by a Clostridium butyricum strain. These nanoparticles (NP) of about 2-3 nm were encapsulated in porous silica (SiO2) and were added at very low concentration (10(-6) mol L(-1)) in batch hydrogen production test. The cultures containing iron oxide NP produced 38% more hydrogen with a higher maximum H2 production rate (HPR) of 58% than those without NP or with silica particles only. The iron oxide NP were used in a 2.5L sequencing-batch reactor and showed no significant effect on the yields (established at 2.2 mol(hydrogen) mol(glucose)(-1)) but an improvement of the HPR (+113%, reaching a maximum HPR of 86 mL(hydrogen) L(-1) h(-1)). These results suggest an improvement of the electron transfers trough some combinations between enzymatic activity and inorganic materials.
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Affiliation(s)
- Laurent Beckers
- Centre Wallon de Biologie Industrielle (CWBI), Département des Sciences de la Vie, Université de Liège, Liège, Belgium.
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245
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Hou H, Chen X, Thomas AW, Catania C, Kirchhofer ND, Garner LE, Han A, Bazan GC. Conjugated oligoelectrolytes increase power generation in E. coli microbial fuel cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:1593-1597. [PMID: 23345125 DOI: 10.1002/adma.201204271] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2012] [Indexed: 06/01/2023]
Abstract
A series of conjugated oligoelectrolytes with structural variations is used to stain E. coli. By taking advantage of a high-throughput screening platform that incorporates gold anodes, it is found that MFCs with COE-modified E. coli generate significantly higher power densities, relative to unmodified E. coli. These findings highlight the potential of using water-soluble molecules inspired by the work on organic semiconductors to improve electrode/microbe interfaces.
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Affiliation(s)
- Huijie Hou
- Department of Chemistry and Biochemistry, Center for Polymers and Organic Solids, University of California, Santa Barbara, CA 93117, USA
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246
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Polyaniline/mesoporous tungsten trioxide composite as anode electrocatalyst for high-performance microbial fuel cells. Biosens Bioelectron 2013; 41:582-8. [DOI: 10.1016/j.bios.2012.09.054] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Revised: 09/02/2012] [Accepted: 09/20/2012] [Indexed: 11/22/2022]
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247
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Ly HK, Harnisch F, Hong SF, Schröder U, Hildebrandt P, Millo D. Unraveling the interfacial electron transfer dynamics of electroactive microbial biofilms using surface-enhanced Raman spectroscopy. CHEMSUSCHEM 2013; 6:487-492. [PMID: 23371822 DOI: 10.1002/cssc.201200626] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Revised: 11/05/2012] [Indexed: 06/01/2023]
Abstract
The electron transfer (ET) processes of electroactive microbial biofilms have been investigated by combining electrochemistry and time-resolved surface-enhanced resonance Raman (TR-SERR) spectroscopy. This experimental approach provides selective information on the ET process across the biofilm-electrode interface by monitoring the redox-state changes of heme cofactors in outer membrane cytochromes (OMCs) that are in close vicinity (i.e., within 7 nm) to the Ag working electrode. The rate constant for heterogeneous ET of the surface-confined OMCs (sc-OMCs) of a mixed culture derived electroactive microbial biofilm has been determined to be 0.03 s(-1) . In contrast, according to kinetic simulations the ET between sc-OMCs and their redox partners, embedded within the biofilm, is a much faster process with an estimated rate constant greater than 1.2 s(-1) . The slow rate of heterogeneous ET and the lack of high-spin species in the SERR spectra rule out the direct attachment of the sc-OMCs to the electrode surface.
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Affiliation(s)
- Hoang K Ly
- Institut für Chemie, Sekr. PC14, Technische Universität Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany
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248
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Cong Y, Xu Q, Feng H, Shen D. Efficient electrochemically active biofilm denitrification and bacteria consortium analysis. BIORESOURCE TECHNOLOGY 2013; 132:24-27. [PMID: 23395754 DOI: 10.1016/j.biortech.2013.01.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Revised: 12/30/2012] [Accepted: 01/02/2013] [Indexed: 06/01/2023]
Abstract
The electrochemically active biofilms have been successfully developed for nitrate removal from the wastewater. The electrochemically "selected" bacteria showed higher activity than the control bacteria. Electron exchange occurred between the electrochemically active bacteria and cathode was identified. Direct electron transfer between the "selected" bacteria and cathodes may be involved in efficient denitrification besides hydrogen transfer, and would contribute to improve denitrification efficiency. The gene analysis of 16S rDNA demonstrated that there was a pronounced enrichment in bacteria of the β-Proteobacteria with 41.93%, Uncultured bacterium clone Dok04 with 25.11% and Sphingobacteria with 6.36% of the sequences from the bacteria consortium with current acclimation. The engineering-oriented multispecies bacteria were favorable to form conductive biofilms and showed high potential for nitrate treatment.
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Affiliation(s)
- Yanqing Cong
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, People's Republic of China.
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249
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Electrochemical characterization of anodic biofilm development in a microbial fuel cell. J APPL ELECTROCHEM 2013. [DOI: 10.1007/s10800-013-0537-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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250
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Fitzgerald LA, Petersen ER, Leary DH, Nadeau LJ, Soto CM, Ray RI, Little BJ, Ringeisen BR, Johnson GR, Vora GJ, Biffinger JC. Shewanella frigidimarina microbial fuel cells and the influence of divalent cations on current output. Biosens Bioelectron 2013; 40:102-9. [DOI: 10.1016/j.bios.2012.06.039] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2012] [Revised: 06/13/2012] [Accepted: 06/19/2012] [Indexed: 01/04/2023]
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