101
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He CS, Mu ZX, Yang HY, Wang YZ, Mu Y, Yu HQ. Electron acceptors for energy generation in microbial fuel cells fed with wastewaters: A mini-review. CHEMOSPHERE 2015; 140:12-17. [PMID: 25907762 DOI: 10.1016/j.chemosphere.2015.03.059] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 08/20/2014] [Accepted: 03/27/2015] [Indexed: 06/04/2023]
Abstract
Microbial fuel cells (MFCs) have gained tremendous global interest over the last decades as a device that uses bacteria to oxidize organic and inorganic matters in the anode with bioelectricity generation and even for purpose of bioremediation. However, this prospective technology has not yet been carried out in field in particular because of its low power yields and target compounds removal which can be largely influenced by electron acceptors contributing to overcome the potential losses existing on the cathode. This mini review summarizes various electron acceptors used in recent years in the categories of inorganic and organic compounds, identifies their merits and drawbacks, and compares their influences on performance of MFCs, as well as briefly discusses possible future research directions particularly from cathode aspect.
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Affiliation(s)
- Chuan-Shu He
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China, Hefei, China
| | - Zhe-Xuan Mu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China, Hefei, China
| | - Hou-Yun Yang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China, Hefei, China
| | - Ya-Zhou Wang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China, Hefei, China
| | - Yang Mu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China, Hefei, China.
| | - Han-Qing Yu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China, Hefei, China
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102
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Ali M, Okabe S. Anammox-based technologies for nitrogen removal: Advances in process start-up and remaining issues. CHEMOSPHERE 2015. [PMID: 26196404 DOI: 10.1016/j.chemosphere.2015.06.094] [Citation(s) in RCA: 216] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Nitrogen removal from wastewater via anaerobic ammonium oxidation (anammox)-based process has been recognized as efficient, cost-effective and low energy alternative to the conventional nitrification and denitrification processes. To date, more than one hundred full-scale anammox plants have been installed and operated for treatment of NH4(+)-rich wastewater streams around the world, and the number is increasing rapidly. Since the discovery of anammox process, extensive researches have been done to develop various anammox-based technologies. However, there are still some challenges in practical application of anammox-based treatment process at full-scale, e.g., longer start-up period, limited application to mainstream municipal wastewater and poor effluent water quality. This paper aimed to summarize recent status of application of anammox process and researches on technological development for solving these remaining problems. In addition, an integrated system of anammox-based process and microbial fuel cell is proposed for sustainable and energy-positive wastewater treatment.
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Affiliation(s)
- Muhammad Ali
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, North-13, West-8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Satoshi Okabe
- Division of Environmental Engineering, Faculty of Engineering, Hokkaido University, North-13, West-8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan.
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103
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Novel Self-driven Microbial Nutrient Recovery Cell with Simultaneous Wastewater Purification. Sci Rep 2015; 5:15744. [PMID: 26503712 PMCID: PMC4621542 DOI: 10.1038/srep15744] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 09/30/2015] [Indexed: 11/24/2022] Open
Abstract
Conventional wastewater purification technologies consume large amounts of energy, while the abundant chemical energy and nutrient resources contained in sewage are wasted in such treatment processes. A microbial nutrient recovery cell (MNRC) has been developed to take advantage of the energy contained in wastewater, in order to simultaneously purify wastewater and recover nutrient ions. When wastewater was circulated between the anode and cathode chambers of the MNRC, the organics (COD) were removed by bacteria while ammonium and phosphate (NH4+-N and PO43−-P) were recovered by the electrical field that was produced using in situ energy in the wastewater without additional energy input. The removal efficiencies from wastewater were >82% for COD, >96% for NH4+-N, and >64% for PO43−-P in all the operational cycles. Simultaneously, the concentrations of NH4+ and PO43− in the recovery chamber increased to more than 1.5 and 2.2 times, respectively, compared with the initial concentrations in wastewater. The MNRC provides proof-of-concept as a sustainable, self-driven approach to efficient wastewater purification and nutrient recovery in a comprehensive bioelectrochemical system.
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104
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Mecheri B, Iannaci A, D'Epifanio A, Mauri A, Licoccia S. Carbon-Supported Zirconium Oxide as a Cathode for Microbial Fuel Cell Applications. Chempluschem 2015; 81:80-85. [DOI: 10.1002/cplu.201500347] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Indexed: 12/14/2022]
Affiliation(s)
- Barbara Mecheri
- Department of Chemical Sciences and Technologies; University of Rome Tor Vergata; Via della Ricerca Scientifica 00133 Rome Italy
| | - Alessandro Iannaci
- Department of Chemical Sciences and Technologies; University of Rome Tor Vergata; Via della Ricerca Scientifica 00133 Rome Italy
| | - Alessandra D'Epifanio
- Department of Chemical Sciences and Technologies; University of Rome Tor Vergata; Via della Ricerca Scientifica 00133 Rome Italy
| | - Arianna Mauri
- Department of Chemical Sciences and Technologies; University of Rome Tor Vergata; Via della Ricerca Scientifica 00133 Rome Italy
| | - Silvia Licoccia
- Department of Chemical Sciences and Technologies; University of Rome Tor Vergata; Via della Ricerca Scientifica 00133 Rome Italy
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105
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Wu X, Zhu X, Song T, Zhang L, Jia H, Wei P. Effect of acclimatization on hexavalent chromium reduction in a biocathode microbial fuel cell. BIORESOURCE TECHNOLOGY 2015; 180:185-91. [PMID: 25603528 DOI: 10.1016/j.biortech.2014.12.105] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2014] [Revised: 12/30/2014] [Accepted: 12/31/2014] [Indexed: 05/28/2023]
Abstract
A simple acclimatization method for the reduction of hexavalent chromium (Cr(VI)) at a biocathode by first enriching an exoelectrogenic biofilm on a microbial fuel cell (MFC) anode, followed by direct inversion of the anode to function as the biocathode, has been established. This novel method significantly enhanced the Cr(VI) reduction efficiency of the MFC, which was mainly attributed to the higher microbial density and less resistive Cr(III) precipitates on the cathode when compared with a common biocathode acclimatization method (control). The biocathode acclimatization period was shortened by 19days and the Cr(VI) reduction rate was increased by a factor of 2.9. Microbial community analyses of biocathodes acclimatized using different methods further verified the feasibility of this electrode inversion method, indicating similar dominant bacteria species in biofilms, which mainly consist of Gamma-proteobacteria and Bacteria.
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Affiliation(s)
- Xiayuan Wu
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Xujun Zhu
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Tianshun Song
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Lixiong Zhang
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Honghua Jia
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China.
| | - Ping Wei
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China
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106
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Rowe AR, Chellamuthu P, Lam B, Okamoto A, Nealson KH. Marine sediments microbes capable of electrode oxidation as a surrogate for lithotrophic insoluble substrate metabolism. Front Microbiol 2015; 5:784. [PMID: 25642220 PMCID: PMC4294203 DOI: 10.3389/fmicb.2014.00784] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2014] [Accepted: 12/21/2014] [Indexed: 11/13/2022] Open
Abstract
Little is known about the importance and/or mechanisms of biological mineral oxidation in sediments, partially due to the difficulties associated with culturing mineral-oxidizing microbes. We demonstrate that electrochemical enrichment is a feasible approach for isolation of microbes capable of gaining electrons from insoluble minerals. To this end we constructed sediment microcosms and incubated electrodes at various controlled redox potentials. Negative current production was observed in incubations and increased as redox potential decreased (tested −50 to −400 mV vs. Ag/AgCl). Electrode-associated biomass responded to the addition of nitrate and ferric iron as terminal electron acceptors in secondary sediment-free enrichments. Elemental sulfur, elemental iron and amorphous iron sulfide enrichments derived from electrode biomass demonstrated products indicative of sulfur or iron oxidation. The microbes isolated from these enrichments belong to the genera Halomonas, Idiomarina, Marinobacter, and Pseudomonas of the Gammaproteobacteria, and Thalassospira and Thioclava from the Alphaproteobacteria. Chronoamperometry data demonstrates sustained electrode oxidation from these isolates in the absence of alternate electron sources. Cyclic voltammetry demonstrated the variability in dominant electron transfer modes or interactions with electrodes (i.e., biofilm, planktonic or mediator facilitated) and the wide range of midpoint potentials observed for each microbe (from 8 to −295 mV vs. Ag/AgCl). The diversity of extracellular electron transfer mechanisms observed in one sediment and one redox condition, illustrates the potential importance and abundance of these interactions. This approach has promise for increasing our understanding the extent and diversity of microbe mineral interactions, as well as increasing the repository of microbes available for electrochemical applications.
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Affiliation(s)
- Annette R Rowe
- Department of Earth Sciences, University of Southern California, Los Angeles Los Angeles, CA, USA
| | - Prithiviraj Chellamuthu
- Department of Molecular and Computational Biology, University of Southern California, Los Angeles Los Angeles, CA, USA
| | - Bonita Lam
- Department Marine and Environmental Biology, University of Southern California, Los Angeles Los Angeles, CA, USA
| | - Akihiro Okamoto
- Department of Applied Chemistry, University of Tokyo Tokyo, Japan
| | - Kenneth H Nealson
- Department of Earth Sciences, University of Southern California, Los Angeles Los Angeles, CA, USA ; Department of Molecular and Computational Biology, University of Southern California, Los Angeles Los Angeles, CA, USA ; Department Marine and Environmental Biology, University of Southern California, Los Angeles Los Angeles, CA, USA
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107
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Semenec L, E Franks A. Delving through electrogenic biofilms: from anodes to cathodes to microbes. AIMS BIOENGINEERING 2015. [DOI: 10.3934/bioeng.2015.3.222] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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108
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Pous N, Koch C, Vilà-Rovira A, Balaguer MD, Colprim J, Mühlenberg J, Müller S, Harnisch F, Puig S. Monitoring and engineering reactor microbiomes of denitrifying bioelectrochemical systems. RSC Adv 2015. [DOI: 10.1039/c5ra12113b] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Elucidating the structure–function relationship of a denitrifying biocathodes.
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Affiliation(s)
- N. Pous
- LEQUiA
- Institute of the Environment
- University of Girona
- E-17071 Girona
- Spain
| | - C. Koch
- Helmholtz Centre for Environmental Research – UFZ
- Department of Environmental Microbiology
- 04318 Leipzig
- Germany
| | - A. Vilà-Rovira
- LEQUiA
- Institute of the Environment
- University of Girona
- E-17071 Girona
- Spain
| | - M. D. Balaguer
- LEQUiA
- Institute of the Environment
- University of Girona
- E-17071 Girona
- Spain
| | - J. Colprim
- LEQUiA
- Institute of the Environment
- University of Girona
- E-17071 Girona
- Spain
| | - J. Mühlenberg
- DBFZ Deutsches Biomasseforschungszentrum gemeinnützige GmbH
- 04347 Leipzig
- Germany
| | - S. Müller
- Helmholtz Centre for Environmental Research – UFZ
- Department of Environmental Microbiology
- 04318 Leipzig
- Germany
| | - F. Harnisch
- Helmholtz Centre for Environmental Research – UFZ
- Department of Environmental Microbiology
- 04318 Leipzig
- Germany
| | - S. Puig
- LEQUiA
- Institute of the Environment
- University of Girona
- E-17071 Girona
- Spain
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109
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Krieg T, Sydow A, Schröder U, Schrader J, Holtmann D. Reactor concepts for bioelectrochemical syntheses and energy conversion. Trends Biotechnol 2014; 32:645-55. [DOI: 10.1016/j.tibtech.2014.10.004] [Citation(s) in RCA: 110] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 09/23/2014] [Accepted: 10/02/2014] [Indexed: 01/24/2023]
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110
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Babauta JT, Hsu L, Atci E, Kagan J, Chadwick B, Beyenal H. Multiple cathodic reaction mechanisms in seawater cathodic biofilms operating in sediment microbial fuel cells. CHEMSUSCHEM 2014; 7:2898-2906. [PMID: 25154833 DOI: 10.1002/cssc.201402377] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2014] [Revised: 06/20/2014] [Indexed: 06/03/2023]
Abstract
In this study, multiple reaction mechanisms in cathodes of sediment microbial fuel cells (SMFCs) were characterized by using cyclic voltammetry and microelectrode measurements of dissolved oxygen and pH. The cathodes were acclimated in SMFCs with sediment and seawater from San Diego Bay. Two limiting current regions were observed with onset potentials of approximately +400 mVAg/AgCl for limiting current I and -120 mVAg/AgCl for limiting current II. The appearance of two catalytic waves suggests that multiple cathodic reaction mechanisms influence cathodic performance. Microscale oxygen concentration measurements showed a zero surface concentration at the electrode surface for limiting current II but not for limiting current I, which allowed us to distinguish limiting current II as the conventional oxygen reduction reaction and limiting current I as a currently unidentified cathodic reaction mechanism. Microscale pH measurements further confirmed these results.
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Affiliation(s)
- Jerome T Babauta
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA (USA)
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111
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Sevda S, Sreekrishnan TR. Removal of organic matters and nitrogenous pollutants simultaneously from two different wastewaters using biocathode microbial fuel cell. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2014; 49:1265-1275. [PMID: 24967560 DOI: 10.1080/10934529.2014.910064] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this study, a dual chamber MFC was constructed for simultaneous removal of organic matter and nitrogenous pollutants and bioelectricity generation from synthetic and complex industrial wastewaters and it was operated in batch and continuous mode. When the cell potential was stable after 16 days of batch mode operation, the MFC was converted to continuous mode (from batch mode) and operated for 125 days with different organic loading rates (OLR) and ammonia loading rates (ALR) and fixed hydraulic retention time (HRT) of 40 h. The OLR of 1.49 kg COD m(-3) d(-1) and ALR of 0.58 kg NH3(-) m(-3) d(-1), for anodic and cathodic chambers, respectively, gave the best results. The highest value of cell potential on these OLRs was 310 mV with current density of 85.11 mA m(-2), power density of 26.38 mW m(-2) and volumetric power density of 192.20 mW m(-3). During this period, COD reduction was 78-83% in the anodic chamber and the ammonia reduction was 36-38%. After stable operation with synthetic wastewater one case study was performed with complex industrial wastewater. Continuous mode operation was performed at two different OLR and HRT with a constant ALR. A stable power density and volumetric power density of 23.56 mW m(-2) and 112.50 mW m(-3), respectively were achieved after 24 days of continuous operation at an OLR of 0.35 kg COD/m(3) day with an ALR of 0.43 kg NH3(-) m(-3) day(-1) and corresponding HRT of 68 h. A maximum of 89% COD removal and 40% removal of ammonia was obtained after 50 days. A stable voltage of 300 mV was obtained across 1000 Ω resistance. These findings suggest that BMFC can be used for the treatment of industrial wastewater, with carbon removal in anodic chamber and electricity generation.
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Affiliation(s)
- Surajbhan Sevda
- a Department of Biochemical Engineering and Biotechnology , Indian Institute of Technology Delhi , New Delhi , India
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112
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Wang Z, Cao C, Zheng Y, Chen S, Zhao F. Abiotic Oxygen Reduction Reaction Catalysts Used in Microbial Fuel Cells. ChemElectroChem 2014. [DOI: 10.1002/celc.201402093] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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113
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Sharma M, Bajracharya S, Gildemyn S, Patil SA, Alvarez-Gallego Y, Pant D, Rabaey K, Dominguez-Benetton X. A critical revisit of the key parameters used to describe microbial electrochemical systems. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.02.111] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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114
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The treatment of PPCP-containing sewage in an anoxic/aerobic reactor coupled with a novel design of solid plain graphite-plates microbial fuel cell. BIOMED RESEARCH INTERNATIONAL 2014; 2014:765652. [PMID: 25197659 PMCID: PMC4150452 DOI: 10.1155/2014/765652] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Accepted: 07/16/2014] [Indexed: 11/18/2022]
Abstract
Synthetic sewage containing high concentrations of pharmaceuticals and personal care products (PPCPs, mg/L level) was treated using an anoxic/aerobic (A/O) reactor coupled with a microbial fuel cell (MFC) at hydraulic retention time (HRT) of 8 h. A novel design of solid plain graphite plates (SPGRPs) was used for the high surface area biodegradation of the PPCP-containing sewage and for the generation of electricity. The average CODCr and total nitrogen removal efficiencies achieved were 97.20% and 83.75%, respectively. High removal efficiencies of pharmaceuticals, including acetaminophen, ibuprofen, and sulfamethoxazole, were also obtained and ranged from 98.21% to 99.89%. A maximum power density of 532.61 mW/cm2 and a maximum coulombic efficiency of 25.20% were measured for the SPGRP MFC at the anode. Distinct differences in the bacterial community were presented at various locations including the mixed liquor suspended solids and biofilms. The bacterial groups involved in PPCP biodegradation were identified as Dechloromonas spp., Sphingomonas sp., and Pseudomonas aeruginosa. This design, which couples an A/O reactor with a novel design of SPGRP MFC, allows the simultaneous removal of PPCPs and successful electricity production.
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115
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Conductive multilayered polyelectrolyte films improved performance in microbial fuel cells (MFCs). Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2014.04.030] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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116
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Liu S, Song H, Wei S, Yang F, Li X. Bio-cathode materials evaluation and configuration optimization for power output of vertical subsurface flow constructed wetland - microbial fuel cell systems. BIORESOURCE TECHNOLOGY 2014; 166:575-583. [PMID: 24956029 DOI: 10.1016/j.biortech.2014.05.104] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 05/23/2014] [Accepted: 05/27/2014] [Indexed: 06/03/2023]
Abstract
To optimize the performance of a vertical subsurface flow constructed wetland-microbial fuel cell (CW-MFC), studies of bio-cathode materials and reactor configurations were carried out. Three commonly used bio-cathode materials including stainless steel mesh (SSM), carbon cloth (CC) and granular activated carbon (GAC) were compared and evaluated. GAC-SSM bio-cathode achieved the highest maximum power density of 55.05 mWm(-2), and it was most suitable for CW-MFCs application because of its large surface area and helpful capillary water absorption. Two types of CW-MFCs with roots were constructed, one was placed in the anode and the other was placed in the cathode. Both planted CW-MFCs obtained higher power output than non-planted CW-MFC. Periodic voltage fluctuations of planted CW-MFCs were caused by light/dark cycles, and the influent substrate concentration significantly affected the amplitude of oscillation. The coulombic efficiencies of CW-MFCs decreased greatly with the increase of the influent substrate concentration.
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Affiliation(s)
- Shentan Liu
- School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Hailiang Song
- School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Size Wei
- School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Fei Yang
- School of Public Health, Central South University, Changsha 410078, China
| | - Xianning Li
- School of Energy and Environment, Southeast University, Nanjing 210096, China.
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117
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Kong F, Wang A, Ren HY. Improved 4-chlorophenol dechlorination at biocathode in bioelectrochemical system using optimized modular cathode design with composite stainless steel and carbon-based materials. BIORESOURCE TECHNOLOGY 2014; 166:252-258. [PMID: 24926596 DOI: 10.1016/j.biortech.2014.05.049] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 05/14/2014] [Accepted: 05/16/2014] [Indexed: 06/03/2023]
Abstract
This study developed and optimized a modular biocathode materials design in bioelectrochemical system (BES) using composite metal and carbon-based materials. The 4-chlorophenol (4-CP) dechlorination could be improved with such composite materials. Results showed that stainless steel basket (SSB) filled with graphite granules (GG) and carbon brush (CB) (SSB/GG/CB) was optimum for dechlorination, followed by SSB/CB and SSB/GG, with rate constant k of 0.0418 ± 0.0002, 0.0374 ± 0.0004, and 0.0239 ± 0.0002 h(-1), respectively. Electrochemical impedance spectroscopy (EIS) demonstrated that the composite materials with metal can benefit the electron transfer and decrease the charge transfer resistance to be 80.4 Ω in BES-SSB/GG/CB, much lower than that in BES-SSB (1674.3 Ω), BES-GG (387.3 Ω), and BES-CB (193.8 Ω). This modular cathode design would be scalable with successive modules for BES scale-up, and may offer useful information to guide the selection and design of BES materials towards dechlorination improvement in wastewater treatment.
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Affiliation(s)
- Fanying Kong
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China
| | - Aijie Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China; Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Hong-Yu Ren
- State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China
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118
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119
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Moreno L, Nemati M, Predicala B. Biokinetic evaluation of fatty acids degradation in microbial fuel cell type bioreactors. Bioprocess Biosyst Eng 2014; 38:25-38. [DOI: 10.1007/s00449-014-1240-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 06/11/2014] [Indexed: 11/24/2022]
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120
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Zhang G, Zhang H, Ma Y, Yuan G, Yang F, Zhang R. Membrane filtration biocathode microbial fuel cell for nitrogen removal and electricity generation. Enzyme Microb Technol 2014; 60:56-63. [DOI: 10.1016/j.enzmictec.2014.04.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 04/01/2014] [Accepted: 04/07/2014] [Indexed: 10/25/2022]
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121
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Zhang B, Wen Z, Ci S, Mao S, Chen J, He Z. Synthesizing nitrogen-doped activated carbon and probing its active sites for oxygen reduction reaction in microbial fuel cells. ACS APPLIED MATERIALS & INTERFACES 2014; 6:7464-7470. [PMID: 24720600 DOI: 10.1021/am5008547] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Cost-effective cathode catalysts are critical to the development of microbial fuel cell (MFC) technology. Herein, a synthesis route is presented to improve the nitrogen content and nitrogen functionality in the nitrogen-doped activated carbon (AC) as a low cost and efficient catalyst for oxygen reduction reaction (ORR). It was demonstrated that key factors for successful nitrogen doping were the proper pretreatment with acidic and alkaline solutions consecutively and the use of a solid-state nitrogen precursor. The AC pretreated with both acidic and alkaline solutions resulted in a nitrogen content of 8.65% (atom %) (in which 5.56% is pyridinic-N) on its surface, and exhibited an outstanding electrocatalytic activity for ORR in both electrochemical and MFC tests. A good agreement between pyridinic-N content and ORR activity was observed, indicating that pyridinic-N is the most active site for ORR in the nitrogen-doped AC. The pretreated nitrogen-doped AC catalysts resulted in a higher maximum power density than the untreated AC and the commercial Pt/C (10% Pt) catalysts. The exceptional performance associated with the advantages, such as simple and convenient preparation procedure, easily obtained raw materials, and low cost, makes the pretreated nitrogen-doped AC promising for the ongoing effort to scale up MFCs.
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Affiliation(s)
- Bo Zhang
- Department of Civil Engineering and Mechanics and §Department of Mechanical Engineering, University of Wisconsin-Milwaukee , Milwaukee, Wisconsin 53211, United States
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122
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Improving electricity generation and substrate removal of a MFC–SBR system through optimization of COD loading distribution. Biochem Eng J 2014. [DOI: 10.1016/j.bej.2014.01.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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123
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Haddadi S, Nabi-Bidhendi G, Mehrdadi N. Nitrogen removal from wastewater through microbial electrolysis cells and cation exchange membrane. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2014; 12:48. [PMID: 24533446 PMCID: PMC3996092 DOI: 10.1186/2052-336x-12-48] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Accepted: 02/10/2014] [Indexed: 05/14/2023]
Abstract
Vulnerability of water resources to nutrients led to progressively stricter standards for wastewater effluents. Modification of the conventional procedures to meet the new standards is inevitable. New technologies should give a priority to nitrogen removal. In this paper, ammonium chloride and urine as nitrogen sources were used to investigate the capacity of a microbial electrolysis cell (MEC) configured by cation exchange membrane (CEM) for electrochemical removal of nitrogen over open-and closed-circuit potentials (OCP and CCP) during biodegradation of organic matter. Results obtained from this study indicated that CEM was permeable to both organic and ammonium nitrogen over OCP. Power substantially mediated ammonium migration from anodic wastewater to the cathode, as well. With a urine rich wastewater in the anode, the maximum rate of ammonium intake into the cathode varied from 34.2 to 40.6 mg/L.h over CCP compared to 10.5-14.9 mg/L.h over OCP. Ammonium separation over CCP was directly related to current. For 1.46-2.12 mmol electron produced, 20.5-29.7 mg-N ammonium was removed. Current also increased cathodic pH up to 12, a desirable pH for changing ammonium ion to ammonia gas. Results emphasized the potential for MEC in control of ammonium through ammonium separation and ammonia volatilization provided that membrane characteristic is considered in their development.
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Affiliation(s)
- Sakineh Haddadi
- Department of Environmental Engineering, Faculty of Environment, University of Tehran, Tehran, Iran
| | - GholamReza Nabi-Bidhendi
- Department of Environmental Engineering, Faculty of Environment, University of Tehran, Tehran, Iran
| | - Nasser Mehrdadi
- Department of Environmental Engineering, Faculty of Environment, University of Tehran, Tehran, Iran
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124
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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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125
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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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126
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Nah JW, Roh SH. Microbial Fuel Cells for Bioenergy Generation and Wastewater Treatment. APPLIED CHEMISTRY FOR ENGINEERING 2013. [DOI: 10.14478/ace.2013.1100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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127
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Kokabian B, Gude VG. Photosynthetic microbial desalination cells (PMDCs) for clean energy, water and biomass production. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2013; 15:2178-2185. [PMID: 24154718 DOI: 10.1039/c3em00415e] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Current microbial desalination cell (MDC) performances are evaluated with chemical catalysts such as ferricyanide, platinum catalyzed air-cathodes or aerated cathodes. All of these methods improve power generation potential in MDCs, however, they are not preferable for large scale applications due to cost, energy and environmental toxicity issues. In this study, performance of microbial desalination cells with an air cathode and an algae biocathode (Photosynthetic MDC - PMDC) were evaluated, both under passive conditions (no mechanical aeration or mixing). The results indicate that passive algae biocathodes perform better than air cathodes and enhance COD removal and utilize treated wastewater as the growth medium to obtain valuable biomass for high value bioproducts. Maximum power densities of 84 mW m(-3) (anode volume) or 151 mW m(-3) (biocathode volume) and a desalination rate of 40% were measured with 0.9 : 1 : 0.5 volumetric ratios of anode, desalination and algae biocathode chambers respectively. This first proof-of-concept study proves that the passive mechanisms can be beneficial in enhancing the sustainability of microbial desalination cells.
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Affiliation(s)
- Bahareh Kokabian
- Civil and Environmental Engineering Department, Mississippi State University, Mississippi State MS 39762, USA.
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128
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Enhanced start-up of anaerobic facultatively autotrophic biocathodes in bioelectrochemical systems. J Biotechnol 2013; 168:478-85. [DOI: 10.1016/j.jbiotec.2013.10.001] [Citation(s) in RCA: 114] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Revised: 08/24/2013] [Accepted: 10/02/2013] [Indexed: 11/22/2022]
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129
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Bourdakos N, Marsili E, Mahadevan R. A defined co-culture of Geobacter sulfurreducens and Escherichia coli in a membrane-less microbial fuel cell. Biotechnol Bioeng 2013; 111:709-18. [PMID: 24155100 DOI: 10.1002/bit.25137] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Revised: 10/11/2013] [Accepted: 10/13/2013] [Indexed: 02/03/2023]
Abstract
Wastewater-fed microbial fuel cells (MFCs) are a promising technology to treat low-organic carbon wastewater and recover part of the chemical energy in wastewater as electrical power. However, the interactions between electrochemically active and fermentative microorganisms cannot be easily studied in wastewater-fed MFCs because of their complex microbial communities. Defined co-culture MFCs provide a detailed understanding of such interactions. In this study, we characterize the extracellular metabolites in laboratory-scale membrane-less MFCs inoculated with Geobacter sulfurreducens and Escherichia coli co-culture and compare them with pure culture MFCs. G. sulfurreducens MFCs are sparged to maintain anaerobic conditions, while co-culture MFCs rely on E. coli for oxygen removal. G. sulfurreducens MFCs have a power output of 128 mW m(-2) , compared to 63 mW m(-2) from the co-culture MFCs. Analysis of metabolites shows that succinate production in co-culture MFCs decreases current production by G. sulfurreducens and that the removal of succinate is responsible for the increased current density in the late co-culture MFCs. Interestingly, pH adjustment is not required for co-culture MFCs but a base addition is necessary for E. coli MFCs and cultures in vials. Our results show that defined co-culture MFCs provide clear insights into metabolic interactions among bacteria while maintaining a low operational complexity.
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Affiliation(s)
- Nicholas Bourdakos
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College St, Toronto, Ontario, M5S 3E5, Canada
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130
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Sun F, Liu H, Liang B, Song R, Yan Q, Wang A. Reductive degradation of chloramphenicol using bioelectrochemical system (BES): a comparative study of abiotic cathode and biocathode. BIORESOURCE TECHNOLOGY 2013; 143:699-702. [PMID: 23849757 DOI: 10.1016/j.biortech.2013.06.084] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2013] [Revised: 06/20/2013] [Accepted: 06/23/2013] [Indexed: 06/02/2023]
Abstract
Reductive degradation of choramphenicol (CAP) using Bioelectrochemical system (BES) with both abiotic cathode and biocathode was investigated. It was found that the CAP reduction efficiency during the first 24 h reached 86.3% of the biocathode group, while which was only 62.9% in the case of abiotic cathode. Except for the cathode potential, other indicators of the cathode performance as the cathode current, the current response of the cyclic voltammetry, the ohm resistance, and the polarization resistance of the biocathode group were all better than those of the abiotic group. Moreover, specific CAP reductive rate of the biocathode with sludge fermentation liquid (0.199 h(-1)) as carbon source was close to that of the glucose (0.215 h(-1)), but was about 3.2 times of the abiotic cathode group (0.062 h(-1)). It suggested that the introduction of biocathode would better the cathode performance, and then further increase the CAP reduction.
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Affiliation(s)
- Fei Sun
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China
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131
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Walter XA, Greenman J, Ieropoulos IA. Oxygenic phototrophic biofilms for improved cathode performance in microbial fuel cells. ALGAL RES 2013. [DOI: 10.1016/j.algal.2013.02.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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132
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Characterization of bacterial and archaeal communities in air-cathode microbial fuel cells, open circuit and sealed-off reactors. Appl Microbiol Biotechnol 2013; 97:9885-95. [DOI: 10.1007/s00253-013-5025-4] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2012] [Revised: 05/28/2013] [Accepted: 05/30/2013] [Indexed: 10/26/2022]
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133
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Wang H, Jiang SC, Wang Y, Xiao B. Substrate removal and electricity generation in a membrane-less microbial fuel cell for biological treatment of wastewater. BIORESOURCE TECHNOLOGY 2013; 138:109-116. [PMID: 23612168 DOI: 10.1016/j.biortech.2013.03.172] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2013] [Revised: 03/24/2013] [Accepted: 03/25/2013] [Indexed: 06/02/2023]
Abstract
Microbial fuel cells have gained popularity in recent years due to its promise in converting organic wastewater into renewable electrical energy. In this study, a membrane-less MFC with a biocathode was developed to evaluate its performance in electricity generation while simultaneously treating wastewater. The MFC fed with a continuous flow of 2g/day acetate produced a power density of 30 mW/m(2) and current density of 245 mA/m(2). A substrate degradation efficiency (SDE) of 75.9% was achieved with 48.7% attributed to the anaerobic process and 27.2% to the aerobic process. Sequencing analysis of the microbial consortia using 16S rDNA pryosequencing showed the predominance of Bacteroidia in the anode after one month of operation, while the microbial community in the cathode chamber was dominated by Gamma-proteobacteria and Beta-proteobacteria. Coulombic efficiencies varied from 19.8% to 58.1% using different acetate concentrations, indicating power density can be further improved through the accumulation of electron-transferring bacteria.
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Affiliation(s)
- Haiping Wang
- Civil and Environmental Engineering, University of California, Irvine, CA 92697, USA
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134
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Zhang F, Ge Z, Grimaud J, Hurst J, He Z. In situ investigation of tubular microbial fuel cells deployed in an aeration tank at a municipal wastewater treatment plant. BIORESOURCE TECHNOLOGY 2013; 136:316-21. [PMID: 23567697 DOI: 10.1016/j.biortech.2013.02.107] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 02/23/2013] [Accepted: 02/25/2013] [Indexed: 05/24/2023]
Abstract
To examine the feasibility of integrating microbial fuel cells (MFCs) into an activated sludge process, three MFCs with different ion exchange membranes and/or cathode catalysts were installed in an aeration tank to treat primary effluent. Both contaminant treatment and electricity generation were studied during the operation for more than 400 days. The effects of membrane/catalysts on MFC performance were not observed, likely due to the low removal of chemical oxygen demand (COD) (<53%) caused by low electricity generation. The MFCs did not achieve any obvious removal of nutrients. The produced energy was lower than the theoretic energy consumption. The performance was seriously affected by cathode biofouling, variation of wastewater quality, and other operating conditions. Unlike prior lab studies by others, the results of this study suggest that MFCs may not be suitable for deployment in an aeration tank, unless the key problems such as biofouling are solved.
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Affiliation(s)
- Fei Zhang
- Department of Civil Engineering and Mechanics, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA
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135
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136
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Enrichment of Clostridia during the operation of an external-powered bio-electrochemical denitrification system. Process Biochem 2013. [DOI: 10.1016/j.procbio.2012.11.020] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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137
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Arugula MA, Shroff N, Katz E, He Z. Molecular AND logic gate based on bacterial anaerobic respiration. Chem Commun (Camb) 2013; 48:10174-6. [PMID: 22932878 DOI: 10.1039/c2cc35595g] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Enzyme coding genes that integrate information for anaerobic respiration in Shewanella oneidensis MR-1 were used as input for constructing an AND logic gate. The absence of one or both genes inhibited electrochemically-controlled anaerobic respiration, while wild type bacteria were capable of accepting electrons from an electrode for DMSO reduction.
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Affiliation(s)
- Mary Anitha Arugula
- Department of Civil Engineering and Mechanics, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA
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138
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Mook WT, Aroua MKT, Chakrabarti MH, Noor IM, Irfan MF, Low CTJ. A review on the effect of bio-electrodes on denitrification and organic matter removal processes in bio-electrochemical systems. J IND ENG CHEM 2013. [DOI: 10.1016/j.jiec.2012.07.004] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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139
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Ge L, Yao C, Ren J, Wang W, Ji J, Jia Y, Ba L. Multilayered hollow polyelectrolyte capsules improved performances in microbial fuel cells (MFCs). POLYMER 2013. [DOI: 10.1016/j.polymer.2012.11.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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140
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Patil SA, Hägerhäll C, Gorton L. Electron transfer mechanisms between microorganisms and electrodes in bioelectrochemical systems. ACTA ACUST UNITED AC 2012. [DOI: 10.1007/s12566-012-0033-x] [Citation(s) in RCA: 146] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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141
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Zhang Y, Angelidaki I. Bioelectrode-based approach for enhancing nitrate and nitrite removal and electricity generation from eutrophic lakes. WATER RESEARCH 2012; 46:6445-6453. [PMID: 23034447 DOI: 10.1016/j.watres.2012.09.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Revised: 07/08/2012] [Accepted: 09/08/2012] [Indexed: 06/01/2023]
Abstract
Nitrate and nitrite contamination of surface waters (e.g. lakes) has become a severe environmental and health problem, especially in developing countries. The recent demonstration of nitrate reduction at the cathode of microbial fuel cell (MFC) provides an opportunity to develop a new technology for nitrogen removal from surface waters. In this study, a sediment-type MFC based on two pieces of bioelectrodes was employed as a novel in situ applicable approach for nitrogen removal, as well as electricity production from eutrophic lakes. Maximum power density of 42 and 36 mW/m(2) was produced respectively from nitrate- and nitrite-rich synthetic lake waters at initial concentration of 10 mg-N/L. Along with the electricity production a total nitrogen removal of 62% and 77% was accomplished, for nitrate and nitrite, respectively. The nitrogen removal was almost 4 times higher under close-circuit condition with biocathode, compared to either the open-circuit operation or with abiotic cathode. The mass balance on nitrogen indicates that most of the removed nitrate and nitrite (84.7 ± 0.1% and 81.8 ± 0.1%, respectively) was reduced to nitrogen gas. The nitrogen removal and power generation was limited by the dissolved oxygen (DO) level in the water and acetate level injected to the sediment. Excessive oxygen resulted in dramatically decrease of nitrogen removal efficiency and only 7.8% removal was obtained at DO level of 7.8 mg/l. The power generation and nitrogen removal increased with acetate level and was nearly saturated at 0.84 mg/g-sediment. This bioelectrode-based in situ approach is attractive not only due to the electricity production, but also due to no need of extra reactor construction, which may broaden the application possibilities of sediment MFC technology.
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Affiliation(s)
- Yifeng Zhang
- Department of Environmental Engineering, Technical University of Denmark, Lyngby, Denmark
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142
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Rahimnejad M, Ghasemi M, Najafpour G, Ismail M, Mohammad A, Ghoreyshi A, Hassan SH. Synthesis, characterization and application studies of self-made Fe3O4/PES nanocomposite membranes in microbial fuel cell. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2011.08.036] [Citation(s) in RCA: 122] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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143
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144
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Wen Q, Zhang H, Chen Z, Li Y, Nan J, Feng Y. Using bacterial catalyst in the cathode of microbial desalination cell to improve wastewater treatment and desalination. BIORESOURCE TECHNOLOGY 2012; 125:108-113. [PMID: 23026321 DOI: 10.1016/j.biortech.2012.08.140] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Revised: 08/29/2012] [Accepted: 08/30/2012] [Indexed: 06/01/2023]
Abstract
A microbial desalination cell (MDC) is able to desalinate salt water without energy consumption whilst generating bioenergy. Previously MDCs used abiotic cathodes, which are restricted in application by high operating costs and low levels of sustainability whereas, in the present study, an aerobic biocathode consisting of carbon felt and bacterial catalysts was tested. The biocathode MDC produced a maximum voltage of 609 mV, the value of which was 136 mV higher than that of an air cathode MDC operated under the same conditions. The salinity of 39 mL of salt water (35 g L(-1) NaCl) was reduced by 92% using 0.441 L of anode solution (11.3:1), with a coulombic efficiency of 96.2 ± 3.8% and a total desalination rate of 2.83 mg h(-1). The biocathode MDC proved to be a promising approach for efficient desalination of salt water.
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Affiliation(s)
- Qinxue Wen
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (SKLUWRE, HIT), Harbin 150090, PR China
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145
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Strik DPBTB, Picot M, Buisman CJN, Barrière F. pH and Temperature Determine Performance of Oxygen Reducing Biocathodes. ELECTROANAL 2012. [DOI: 10.1002/elan.201200358] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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146
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Srikanth S, Venkata Mohan S. Change in electrogenic activity of the microbial fuel cell (MFC) with the function of biocathode microenvironment as terminal electron accepting condition: influence on overpotentials and bio-electro kinetics. BIORESOURCE TECHNOLOGY 2012; 119:241-251. [PMID: 22728788 DOI: 10.1016/j.biortech.2012.05.097] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2012] [Revised: 05/07/2012] [Accepted: 05/11/2012] [Indexed: 06/01/2023]
Abstract
Influence of biocathode microenvironment as terminal electron accepting process (TEAP) on the electrogenic activity of the microbial fuel cell (MFC)/bio-electrochemical system (BES) was evaluated in concurrence with the internal losses and bio-electro kinetics. Aerobic metabolism as TEAP showed power output (37.5 ± 2.7 mW/m(2)) for extended time (240 h) over abiotic (42.5 ± 1.5 mW/m(2)) electron accepting process. On the contrary, anaerobic metabolism as TEAP showed negligible power output in spite of increased retention time due to the absence of electron acceptor. Presence of strong electron acceptor conditions in aerobic metabolism facilitated gradual and stable reduction of electrons which helped to overcome the activation over potential and other potential losses. Voltammetric and amperometric analysis witnessed higher and sustainable electron discharge against the aerobic metabolism at cathode. Bio-electro kinetic analysis also showed lower Tafel slope and electron transfer co-efficient indicating the positive impact of aerobic metabolism at cathode in decreasing the internal losses.
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Affiliation(s)
- S Srikanth
- Bioengineering and Environmental Centre (BEEC), CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 607, India
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147
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Xia X, Sun Y, Liang P, Huang X. Long-term effect of set potential on biocathodes in microbial fuel cells: electrochemical and phylogenetic characterization. BIORESOURCE TECHNOLOGY 2012; 120:26-33. [PMID: 22784950 DOI: 10.1016/j.biortech.2012.06.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Revised: 06/09/2012] [Accepted: 06/09/2012] [Indexed: 06/01/2023]
Abstract
The long-term effect of set potential on oxygen reducing biocathodes was investigated in terms of electrochemical and biological characteristics. Three biocathodes were poised at 200, 60 and -100 mV vs. saturated calomel electrode (SCE) for 110 days, including the first 17 days for startup. Electrochemical analyses showed that 60 mV was the optimum potential during long-term operation. The performance of all the biocathodes kept increasing after startup, suggesting a period longer than startup time needed to make potential regulation more effective. The inherent characteristics without oxygen transfer limitation were studied. Different from short-term regulation, the amounts of biomass were similar while the specific electrochemical activity was significantly influenced by potential. Moreover, potential showed a strong selection for cathode bacteria. Clones 98% similar with an uncultured Bacteroidetes bacterium clone CG84 accounted for 75% to 80% of the sequences on the biocathodes that showed higher electrochemical activity (60 and -100 mV).
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Affiliation(s)
- Xue Xia
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, PR China
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148
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Sulfate reduction with electrons directly derived from electrodes in bioelectrochemical systems. Electrochem commun 2012. [DOI: 10.1016/j.elecom.2012.04.030] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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149
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Zhang G, Wang K, Zhao Q, Jiao Y, Lee DJ. Effect of cathode types on long-term performance and anode bacterial communities in microbial fuel cells. BIORESOURCE TECHNOLOGY 2012; 118:249-256. [PMID: 22705531 DOI: 10.1016/j.biortech.2012.05.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Revised: 05/02/2012] [Accepted: 05/03/2012] [Indexed: 06/01/2023]
Abstract
Effects of cathode types on the long-term stability of microbial fuel cell (MFC) and the anodic microbial communities were studied using K(3)Fe(CN)(6) catholyte (R1), air cathode (R2) and biocathode (R3) over a testing time of 400 d. Upon 400 d of testing, the maximum power densities (P(max)) of R1 and R2 decreased by 44% and 37%, and the Coulombic efficiencies (CEs) decreased 8.4% (R1) and 2.0% (R2), respectively, using the performances on 10d as the comparison basis. Conversely, the P(max) and CE of R3 increased by 68.2% and 116.8%, respectively. The non-ohmic resistances (R(no)) in all tests were the principal contributors of cell internal resistances. Phylogenetic analyses revealed that the microbial communities on anodic surface varied with cathode types and operational history.
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Affiliation(s)
- Guodong Zhang
- State Key Laboratory of Urban Water Resources and Environments (SKLUWRE), School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China
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150
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Villano M, Aulenta F, Majone M. Perspectives of biofuels production from renewable resources with bioelectrochemical systems. ASIA-PAC J CHEM ENG 2012. [DOI: 10.1002/apj.1643] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Marianna Villano
- Department of Chemistry; Sapienza University of Rome; P.le Aldo Moro 5; 00185; Rome; Italy
| | - Federico Aulenta
- Water Research Institute (IRSA-CNR), National Research Council; Via Salaria km. 29.300; 00015; Monterotondo (RM); Italy
| | - Mauro Majone
- Department of Chemistry; Sapienza University of Rome; P.le Aldo Moro 5; 00185; Rome; Italy
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