Factors affecting current production in microbial fuel cells using different industrial wastewaters.

This study evaluated how different types of industrial wastewaters (bakery, brewery, paper and dairy) affect the performance of identical microbial fuel cells (MFCs); and the microbial composition and electrochemistry of MFC anodes. MFCs fed with paper wastewater produced the highest current density (125 ± 2 mA/m(2)) at least five times higher than dairy (25 ± 1 mA/m(2)), brewery and bakery wastewaters (10 ± 1 mA/m(2)). Such high current production was independent of substrate degradability. A comprehensive study was conducted to determine the factor driving current production when using the paper effluent. The microbial composition of anodic biofilms differed according to the type of wastewater used, and only MFC anodes fed with paper wastewater showed redox activity at -134 ± 5 mV vs NHE. Electrochemical analysis of this redox activity indicated that anodic bacteria produced a putative electron shuttling compound that increased the electron transfer rate through diffusion, and as a result the overall MFC performance.

[1]  D. R. Bond,et al.  Shewanella secretes flavins that mediate extracellular electron transfer , 2008, Proceedings of the National Academy of Sciences.

[2]  Yung-Tse Hung,et al.  Waste treatment in the food processing industry. , 2005 .

[3]  A. E. Greenberg,et al.  Standard Methods for the Examination of Water and Wastewater seventh edition , 2013 .

[4]  Zhiguo Yuan,et al.  Electron and carbon balances in microbial fuel cells reveal temporary bacterial storage behavior during electricity generation. , 2007, Environmental science & technology.

[5]  Byung Hong Kim,et al.  A mediator-less microbial fuel cell using a metal reducing bacterium, Shewanella putrefaciens , 2002 .

[6]  R. Hozalski,et al.  Microbial Biofilm Voltammetry: Direct Electrochemical Characterization of Catalytic Electrode-Attached Biofilms , 2008, Applied and Environmental Microbiology.

[7]  Y. Zuo,et al.  Electricity generation by Rhodopseudomonas palustris DX-1. , 2008, Environmental science & technology.

[8]  D. Pant,et al.  A review of the substrates used in microbial fuel cells (MFCs) for sustainable energy production. , 2010, Bioresource technology.

[9]  Mark J. Kirwan,et al.  Paper and Paperboard Packaging Technology , 2005 .

[10]  Zhen He,et al.  Increased power production from a sediment microbial fuel cell with a rotating cathode. , 2007, Biosensors & bioelectronics.

[11]  Jiří Jaromír Klemeš,et al.  Handbook of water and energy management in food processing. , 2008 .

[12]  Ioannis Ieropoulos,et al.  Electricity from landfill leachate using microbial fuel cells: Comparison with a biological aerated filter , 2009 .

[13]  A. E. Alegria,et al.  Quinone-enhanced Ascorbate Reduction of Nitric Oxide: Role of Quinone Redox Potential , 2004, Free radical research.

[14]  Willy Verstraete,et al.  Microbial Fuel Cells in Relation to Conventional Anaerobic Digestion Technology , 2006 .

[15]  Tingyue Gu,et al.  A state of the art review on microbial fuel cells: A promising technology for wastewater treatment and bioenergy. , 2007, Biotechnology advances.

[16]  K. Scott,et al.  Evaluation of hydrolysis and fermentation rates in microbial fuel cells , 2011, Applied Microbiology and Biotechnology.

[17]  T. Matsui,et al.  Effect of fatty oil dispersion on oil-containing wastewater treatment. , 2005, Journal of hazardous materials.

[18]  E. E. L O G A N,et al.  Electricity Generation by Rhodopseudomonas palustris , 2008 .

[19]  Keith Scott,et al.  A single chamber packed bed microbial fuel cell biosensor for measuring organic content of wastewater. , 2009, Water science and technology : a journal of the International Association on Water Pollution Research.

[20]  Derek R. Lovley,et al.  Evidence for Involvement of an Electron Shuttle in Electricity Generation by Geothrix fermentans , 2005, Applied and Environmental Microbiology.

[21]  P. Cañizares,et al.  Study of the acclimation stage and of the effect of the biodegradability on the performance of a microbial fuel cell. , 2009, Bioresource technology.

[22]  P. Parameswaran,et al.  Evaluation of energy-conversion efficiencies in microbial fuel cells (MFCs) utilizing fermentable and non-fermentable substrates. , 2008, Water research.

[23]  M. Doble,et al.  Biotreatment Of Industrial Effluents , 2005 .

[24]  J. Lloyd,et al.  The effect of flavin electron shuttles in microbial fuel cells current production , 2010, Applied Microbiology and Biotechnology.

[25]  W. Verstraete,et al.  Microbial phenazine production enhances electron transfer in biofuel cells. , 2005, Environmental science & technology.

[26]  Awwa,et al.  Standard Methods for the examination of water and wastewater , 1999 .

[27]  Ted Goldammer,et al.  The brewer's handbook : the complete book to brewing beer , 2008 .

[28]  W. Verstraete,et al.  Bioanode performance in bioelectrochemical systems: recent improvements and prospects. , 2009, Trends in biotechnology.

[29]  Bruce E. Logan,et al.  AMMONIA TREATMENT OF CARBON CLOTH ANODES TO ENHANCE POWER GENERATION OF MICROBIAL FUEL CELLS , 2007 .

[30]  H. W. van Verseveld,et al.  Section 7 update: Cluster analysis and statistical comparison of molecular community profile data , 2004 .