Hyunsoo Moon, In Seop Chang, Byung Hong Kim

Bioresource Technology • 2006

G.S. Jadhav, M.M. Ghangrekar

Bioresource Technology • 2008

Jeffrey M. Morris, Song Jin, Barbara Crimi et al.

Chemical Engineering Journal • 2009

R.P. Pinto, B. Srinivasan, M.-F. Manuel et al.

Bioresource Technology • 2010

Bibiana Cercado-Quezada, Marie-Line Delia, Alain Bergel

Bioresource Technology • 2010

Unknown Author

Bulletin of the Korean Chemical Society • 2008

Li Wang, Hong Lin, Xiangtong Zhou et al.

ECS Meeting Abstracts • 2009

Abstract not Available.

Zhen He, Florian Mansfeld

Energy Environ. Sci. • 2008

Pei-Yuan Zhang, Zhong-Liang Liu

Journal of Power Sources • 2010

J. M. Tront, J. D. Fortner, M. Plötze et al.

Biotechnology Letters • 2008

Microbial fuel cell (MFC) based sensing was explored to provide for the development of an in situ bioremediation monitoring approach for substrate concentrations and microbial respiration rates. MFC systems were examined in column systems where Shewanella oneidensis MR1 used an external electron acceptor (an electrode) to metabolize lactate (a bioremediation additive) to acetate. Column systems were operated with varying influent lactate concentrations (0-41 mM) and monitored for current generation (0.01-0.39 mA). Biological current generation paralleled bulk phase lactate concentration both in the influent and in the bulk phase at the anode; current values were correlated to lactate concentration at the anode (R(2) = 0.9), The electrical signal provided real-time information for electron donor availability and biological activity. These results have practical implications for efficient and inexpensive real-time monitoring of in situ bioremediation processes where information on substrate concentrations is often difficult to obtain and where information on the rate and nature of metabolic processes is needed.

Hisanori WATANABE

Journal of the Japan Institute of Energy • 2007

Huijie Hou, Lei Li, Younghak Cho et al.

PLoS ONE • 2009

Microbial fuel cells (MFCs) are remarkable "green energy" devices that exploit microbes to generate electricity from organic compounds. MFC devices currently being used and studied do not generate sufficient power to support widespread and cost-effective applications. Hence, research has focused on strategies to enhance the power output of the MFC devices, including exploring more electrochemically active microbes to expand the few already known electricigen families. However, most of the MFC devices are not compatible with high throughput screening for finding microbes with higher electricity generation capabilities. Here, we describe the development of a microfabricated MFC array, a compact and user-friendly platform for the identification and characterization of electrochemically active microbes. The MFC array consists of 24 integrated anode and cathode chambers, which function as 24 independent miniature MFCs and support direct and parallel comparisons of microbial electrochemical activities. The electricity generation profiles of spatially distinct MFC chambers on the array loaded with Shewanella oneidensis MR-1 differed by less than 8%. A screen of environmental microbes using the array identified an isolate that was related to Shewanella putrefaciens IR-1 and Shewanella sp. MR-7, and displayed 2.3-fold higher power output than the S. oneidensis MR-1 reference strain. Therefore, the utility of the MFC array was demonstrated.

Zhongjian Li, Xingwang Zhang, Yuxuan Zeng et al.

Bioresource Technology • 2009

An overflow-type wetted-wall MFC (WWMFC) was developed to generate a stable voltage from acetate-based substrates. The maximum power density of 18.21 W/m(3) was obtained. The power generation showed a saturation-type relationship as a function of initial COD, with a maximum power density (P(max)) of 18.82 W/m(3) and a saturation constant (K(s)) of 227.4 mg/l. Forced air flowing through the cathode chamber had a negligible effect on power generation. Influent flow rate could greatly affect the power generation. The maximum power density was increased by 72.8% when the influent flow rate increased from 5 to 30 ml/min. In addition, increasing ionic strength did not affect the power density and internal resistance. Oxygen could be restrained to diffuse into the anode chamber effectively in the overflow-type WWMFC. And the overflow-type WWMFC could be scaled up conveniently in practical application.

Kai-peng WANG, Sheng-li CHEN

Journal of Electrochemistry • 2010

Orianna Bretschger, Esra Kus, Florian Mansfeld et al.

ECS Meeting Abstracts • 2006

Abstract not Available.

Li Zhuang, Shungui Zhou

Electrochemistry Communications • 2009

Booki Min, Irini Angelidaki

Journal of Power Sources • 2008

Kazuya Watanabe

Journal of Bioscience and Bioengineering • 2008

Liping Huang, Raymond J. Zeng, Irini Angelidaki

Bioresource Technology • 2008

S.-E. Oh, B.E. Logan

Journal of Power Sources • 2007

Yumiko Kodama, Kazuya Watanabe

FEMS Microbiology Letters • 2008

Rod-shaped Alphaproteobacteria possessing long prosthecae-like appendages have been detected abundantly in biofilms attaching onto anode graphite of cellulose-fed microbial fuel cells (MFCs). To identify their ecological roles, the present study isolated a corresponding bacterium (strain Mfc52) by direct plating of a biofilm suspension onto a solid medium containing glucose and ferric ion. Phylogenetic analysis revealed that this strain is deeply branched in the class Alphaproteobacteria and may represent a novel order. Strain Mfc52 fermented sugars and produced lactate, acetate, and fumarate, whereas ferric ion stimulated the growth on glucose. When an MFC was inoculated with this strain and supplemented with glucose, it fermented glucose and generated electricity by oxidizing organic acids produced from glucose. Electron micrographs showed that a fraction of cells in a liquid culture had prosthecae-like appendages that were abundantly observed in anode biofilm. These observations suggest that the bacterial population represented by strain Mfc52 shared an important niche in the cellulose-fed MFC, where it generated electricity by oxidizing intermediate metabolites from cellulose degradation.

B. Tartakovsky, S.R. Guiot

Biotechnology Progress • 2006

In this study, a two-compartment continuous flow microbial fuel cell (MFC) reactor was used to compare the efficiencies of cathode oxygenation by air and by hydrogen peroxide. The MFC reactor had neither a proton-selective membrane nor an electron transfer mediator. At startup, the cathodic compartment was continuously aerated and the anodic compartment was fed with a glucose solution. An increase of electrical power generation from 0.008 to 7.2 mW m(-2) of anode surface with a steady-state potential of 215-225 mV was observed within a period of 12 days. The performance of the air-oxygenated MFC reactor progressively declined over time because of biofilm proliferation in the cathodic compartment. Oxygenation of the cathodic compartment using 300 mL d(-1) of 0.3% hydrogen peroxide solution resulted in a power density of up to 22 mW m(-2) (68.2 mA m(-2)) of anode surface at a potential of 340-350 mV. The use of H2O2 for oxygenation was found to improve the long-term stability of the MFC reactor.

Min Sun, Guo-Ping Sheng, Zhe-Xuan Mu et al.

Journal of Power Sources • 2009

Unknown Author

Fuel Cells Bulletin • 2006

C.-P.-B. Siu, Mu Chiao

Journal of Microelectromechanical Systems • 2008

Aswin Karthik Manohar, David Harrington, Florian Mansfeld

ECS Meeting Abstracts • 2008

Abstract not Available.

Aswin K. Manohar, Florian Mansfeld

Electrochimica Acta • 2009

Unknown Author

Journal of Biochemical Technology • 2007

James Sumner, Scott Crittenden

ECS Meeting Abstracts • 2006

Abstract not Available.

J.M. Tront, J.D. Fortner, M. Plötze et al.

Biosensors and Bioelectronics • 2008

Unknown Author

Journal of Biochemical Technology • 2008

Junqiu Jiang, Qingliang Zhao, Liangliang Wei et al.

Water Research • 2010

Unknown Author

Focus on Catalysts • 2005

Kenneth Nealson, Orianna Bretschger

ECS Meeting Abstracts • 2008

Abstract not Available.

Unknown Author

Focus on Catalysts • 2005

Ioannis A. Ieropoulos, John Greenman, Chris Melhuish et al.

Enzyme and Microbial Technology • 2005

Unknown Author

Fuel Cells Bulletin • 2004

Unknown Author

Fuel Cells Bulletin • 2007

U. Schröder

Reference Module in Chemistry, Molecular Sciences and Chemical Engineering • 2014

F. Harnisch, F. Aulenta, U. Schröder

Comprehensive Biotechnology • 2011

Scientific research has advanced on different microbial fuel cell (MFC) technologies in the laboratory at an amazing pace, with power densities having reached over 1 kW/m(3) (reactor volume) and to 6.9 W/m(2) (anode area) under optimal conditions. The main challenge is to bring these technologies out of the laboratory and engineer practical systems for bioenergy production at larger scales. Recent advances in new types of electrodes, a better understanding of the impact of membranes and separators on performance of these systems, and results from several new pilot-scale tests are all good indicators that commercialization of the technology could be possible within a few years. Some of the newest advances and future challenges are reviewed here with respect to practical applications of these MFCs for renewable energy production and other applications.