Enhancing hydrogen production efficiency in microbial electrolysis cell with membrane electrode assembly cathode

Abstract Microbial electrolysis cell is a device which can produce hydrogen gas from biomass through microbial catalyzed process and thus reduce the organic matter. For the real application in wastewater treatment, the scale-up of microbial electrolysis cell is an important issue but few tests were conducted with relatively large size. In this study, a 3.7 L microbial electrolysis cell (liquid volume 3.2 L) equipped with a membrane electrode assembly cathode was designed and tested. The internal resistance was examined, hydrogen generation and organic removal performance was investigated under different conditions. A maximum overall hydrogen efficiency of 41% was achieved at an applied voltage of 1.2 V with acetate as substrate, corresponding to a volumetric hydrogen production rate of approximately 0.12 m3 H2/m3 reactor liquid volume/day. The results obtained in this study could help to further develop pilot-MEC for practical applications.

[1]  Bruce E Logan,et al.  Hydrogen and electricity production from a food processing wastewater using fermentation and microbial fuel cell technologies. , 2005, Water research.

[2]  H. Hamelers,et al.  Performance of single chamber biocatalyzed electrolysis with different types of ion exchange membranes. , 2007, Water research.

[3]  Willy Verstraete,et al.  Methanogenesis in membraneless microbial electrolysis cells , 2009, Applied Microbiology and Biotechnology.

[4]  Byung Hong Kim,et al.  Use of acetate for enrichment of electrochemically active microorganisms and their 16S rDNA analyses. , 2003, FEMS microbiology letters.

[5]  Richard M. Dinsdale,et al.  Development of a tubular microbial fuel cell (MFC) employing a membrane electrode assembly cathode , 2009 .

[6]  S. Yeom,et al.  Comparison of hydrogen production by four representative hydrogen-producing bacteria , 2008 .

[7]  Yu-Hong Jia,et al.  Simultaneous organics removal and bio-electrochemical denitrification in microbial fuel cells , 2008, Bioprocess and biosystems engineering.

[8]  W. Verstraete,et al.  Biofuel Cells Select for Microbial Consortia That Self-Mediate Electron Transfer , 2004, Applied and Environmental Microbiology.

[9]  D. R. Bond,et al.  Electrode-Reducing Microorganisms That Harvest Energy from Marine Sediments , 2002, Science.

[10]  D. Lovley,et al.  Electricity generation by direct oxidation of glucose in mediatorless microbial fuel cells , 2003, Nature Biotechnology.

[11]  Bruce E Logan,et al.  Microbial electrolysis cells for high yield hydrogen gas production from organic matter. , 2008, Environmental science & technology.

[12]  W. Verstraete,et al.  Microbial fuel cells: novel biotechnology for energy generation. , 2005, Trends in biotechnology.

[13]  Wei-fei Song,et al.  Characteristics of hydrogen production by immobilized cyanobacterium Microcystis aeruginosa through cycles of photosynthesis and anaerobic incubation , 2009 .

[14]  Bruce E Logan,et al.  Hydrogen production in a single chamber microbial electrolysis cell lacking a membrane. , 2008, Environmental science & technology.

[15]  Hong Liu,et al.  Hydrogen production in single-chamber tubular microbial electrolysis cells using non-precious-metal catalysts , 2009 .

[16]  Zhenglong Li,et al.  Electricity generation using a baffled microbial fuel cell convenient for stacking. , 2008, Bioresource technology.

[17]  Hong Liu,et al.  Electrochemically assisted microbial production of hydrogen from acetate. , 2005, Environmental science & technology.

[18]  Stefano Freguia,et al.  Microbial fuel cells: methodology and technology. , 2006, Environmental science & technology.

[19]  W. Verstraete,et al.  Continuous electricity generation at high voltages and currents using stacked microbial fuel cells. , 2006, Environmental science & technology.

[20]  R. Dinsdale,et al.  Continuous fermentative hydrogen production from a wheat starch co‐product by mixed microflora , 2003, Biotechnology and bioengineering.

[21]  F. Harnisch,et al.  Challenges and constraints of using oxygen cathodes in microbial fuel cells. , 2006, Environmental science & technology.

[22]  Yasuo Asada,et al.  Biotechnological hydrogen production" research for efficient light energy conversion , 1999 .

[23]  Hong Liu,et al.  Electricity generation using an air-cathode single chamber microbial fuel cell in the presence and absence of a proton exchange membrane. , 2004, Environmental science & technology.

[24]  Boris Tartakovsky,et al.  High rate membrane-less microbial electrolysis cell for continuous hydrogen production , 2009, International Journal of Hydrogen Energy.