Yohann R.J. Thomas, Matthieu Picot, Arnaud Carer et al.

Journal of Power Sources • 2013

Hitesh C. Boghani, Jung Rae Kim, Richard M. Dinsdale et al.

Journal of Power Sources • 2013

Yifeng Zhang, Irini Angelidaki

Biosensors and Bioelectronics • 2012

Electric energy can be harvested from aquatic sediments by utilizing microbial fuel cells (MFCs). A main challenge of this application is the limited voltage output. In this study, an innovative self-stacked submersible MFC (SSMFC) was developed to improve the voltage generation from lake sediments. The SSMFC successfully produced a maximum power density of 294 mW/m(2) and had an open circuit voltage (OCV) of 1.12 V. However, voltage reversal was observed in one cell at high current density. Investigation on the cause for voltage reversal revealed that voltage reversal was occurring only when low external resistance (≤ 400Ω in this study) was applied. In addition, the internal resistance and OCV were the most important parameters for predicting which cell unit had the highest probability to undergo voltage reversal. Use of a capacitor was found to be an effective way to prevent voltage reversal and at the same time store power. These results provide new insight into the development of effective MFC system, capable of extracting energy and promoting bioremediation of organic pollutants from sediments.

Ravinder Kumar, Lakhveer Singh, A. W. Zularisam

Journal of Clean Energy Technologies • 2014

Paule Salvin, Olivier Ondel, Christophe Roos et al.

International Journal of Energy Research • 2014

Baogang Zhang, Chuanping Feng, Jinren Ni et al.

Journal of Power Sources • 2012

Mostafa Rahimnejad, Ali Asghar Ghoreyshi, Ghasem Najafpour et al.

Applied Energy • 2011

Junxian Hou, Zhongliang Liu, Yanxia Li

Journal of Clean Energy Technologies • 2014

Zejie Wang, Bongsu Lim, Chansoo Choi

Bioresource Technology • 2011

Marta C. Hatzell, Roland Cusick, Bruce E. Logan

ECS Meeting Abstracts • 2013

Abstract not Available.

Jessica Kramer, Souren Soukiazian, Sky Mahoney et al.

Journal of Power Sources • 2012

Unknown Author

Technical Quarterly • 2014

Hongrui Ding, Yan Li, Anhuai Lu et al.

Journal of Power Sources • 2014

Zheng Ge, Liao Wu, Fei Zhang et al.

Journal of Power Sources • 2015

Conrad Donovan, Alim Dewan, Deukhyoun Heo et al.

Journal of Power Sources • 2013

Li Xiao, Jacqueline Damien, Jiayan Luo et al.

Journal of Power Sources • 2012

Giuliano C. Premier, Jung Rae Kim, Iain Michie et al.

Journal of Power Sources • 2011

Wenguo Wu, Keaton Lesnik, Shoutao Xu et al.

Microbial Cell Factories • 2013

B.C. Jong, P.W.Y. Liew, M. Lebai Juri et al.

Letters in Applied Microbiology • 2011

K. Hirooka, O. Ichihashi

Bioresource Technology • 2013

F. Grondin, M. Perrier, B. Tartakovsky

Journal of Power Sources • 2012

Conrad Donovan, Alim Dewan, Huan Peng et al.

Journal of Power Sources • 2011

Chansoo Choi, Yufeng Cui

Bioresource Technology • 2012

Junxian Hou, Zhongliang Liu, Peiyuan Zhang

Journal of Power Sources • 2013

Jonathan Winfield, Lily D. Chambers, Andrew Stinchcombe et al.

Journal of Power Sources • 2014

Muhannad Alaraj, Zhiyong Jason Ren, Jae-Do Park

Journal of Power Sources • 2014

Sarah M. Carver, Pertti Vuoriranta, Olli H. Tuovinen

Journal of Power Sources • 2011

Andrew Meehan, Hongwei Gao, Zbigniew Lewandowski

IEEE Transactions on Power Electronics • 2010

Marta C. Hatzell, Younggy Kim, Bruce E. Logan

Journal of Power Sources • 2013

Liping Huang, Binglin Yao, Dan Wu et al.

Journal of Power Sources • 2014

Xiaoxin Cao, Xia Huang, Peng Liang et al.

Environmental Science & Technology • 2009

Current water desalination techniques are energy intensive and some use membranes operated at high pressures. It is shown here that water desalination can be accomplished without electrical energy input or high water pressure by using a source of organic matter as the fuel to desalinate water. A microbial fuel cell was modified by placing two membranes between the anode and cathode, creating a middle chamber for water desalination between the membranes. An anion exchange membrane was placed adjacent to the anode, and a cation exchange membrane was positioned next to the cathode. When current was produced by bacteria on the anode, ionic species in the middle chamber were transferred into the two electrode chambers, desalinating the water in the middle chamber. Proof-of-concept experiments for this approach, using what we call a microbial desalination cell (MDC), was demonstrated using water at different initial salt concentrations (5, 20, and 35 g/L) with acetate used as the substrate for the bacteria. The MDC produced a maximum of 2 W/m2 (31 W/m3) while at the same time removing about 90% of the salt in a single desalination cycle. As the salt was removed from the middle chamber the ohmic resistance of the MDC (measured using electrochemical impedance spectroscopy) increased from 25 Omega to 970 Omega at the end of the cycle. This increased resistance was reflected by a continuous decrease in the voltage produced over the cycle. These results demonstrate for the first time the possibility for a new method for water desalination and power production that uses only a source of biodegradable organic matter and bacteria.

Bruce Logan, Rachel Wagner, Roland Cusick et al.

Proceedings of the Water Environment Federation • 2008

Rachel C. Wagner, John M. Regan, Sang-Eun Oh et al.

Water Research • 2009

Haiping Luo, Peter E. Jenkins, Zhiyong Ren

Environmental Science & Technology • 2010

The versatility of bioelectrochemical systems (BESs) makes them promising for various applications, and good combinations could make the system more applicable and economically effective. An integrated BES called microbial electrolysis and desalination cell (MEDC) was developed to concurrently desalinate salt water, produce hydrogen gas, and potentially treat wastewater. The reactor is divided into three chambers by inserting a pair of ion exchange membranes, with each chamber serving one of the three functions. With an added voltage of 0.8 V, lab scale batch study shows the MEDC achieved the highest H(2) production rate of 1.5 m(3)/m(3) d (1.6 mL/h) from the cathode chamber, while also removing 98.8% of the 10 g/L NaCl from the middle chamber. The anode recirculation alleviated pH and high salinity inhibition on bacterial activity and further increased system current density from 87.2 to 140 A/m(3), leading to an improved desalination rate by 80% and H(2) production by 30%. Compared to slight changes in desalination, H(2) production was more significantly affected by the applied voltage and cathode buffer capacity, suggesting cathode reactions were likely affected by the external power supply in addition to the anode microbial activity.

Lu Lu, Defeng Xing, Tianhui Xie et al.

Biosensors and Bioelectronics • 2010

Microorganisms can produce hydrogen gas (H(2)) at high rates by fermentation of carbohydrates, but not from proteins. However, it is possible to produce H(2) at high rates and yields from proteins by electrohydrogenesis in microbial electrolysis cells (MECs). Hydrogen gas was generated using bovine serum albumin (BSA, 700 mg/L) in a single-chamber MEC at a rate of Q=0.42+/-0.07 m(3)/m(3)/day and a yield of Y(H2) = 21.0 +/- 5.0 mmol-H2/g-COD, with an energy recovery (relative to electrical input) of eta(E)=75+/-12% (applied voltage of 0.6 V). Hydrogen production was substantially reduced using a complex protein (peptone) under the same conditions, to Q=0.05+/-0.01 m(3)/m(3)/day, YH2 = 2.6 +/- 0.1 mmol-H2/g-COD, and eta(E)=14+/-3%. There was good removal of organic matter for both substrates in terms of either protein (87+/-6 -97 +/-2%) or total COD (86+/-2 - 91+/-2%). Electron recycling likely occurred as Coulombic efficiencies exceeded 100% using BSA. The use of a two-chamber design, with either a CEM or AEM membrane, reduced the hydrogen production rate, but did not appreciably affect the hydrogen yield or energy efficiency. When an MEC was first acclimated to acetate, and then switched to BSA, performance was substantially reduced and was similar to that obtained using peptone. These results demonstrate that electrohydrogenesis can be used to produce H(2) from proteins, and it can also be used as a method for treatment of protein-containing wastewaters.

Matthew D. Merrill, Bruce E. Logan

Journal of Power Sources • 2009

Danilo Porro, Paola Branduardi

Microbial Cell Factories • 2008

Jeffrey M. Foley, René A. Rozendal, Christopher K. Hertle et al.

Environmental Science & Technology • 2010

Hong Liu, Hongqiang Hu, Jeremy Chignell et al.

Biofuels • 2009

Roland D. Cusick, Patrick D. Kiely, Bruce E. Logan

International Journal of Hydrogen Energy • 2010