Document Detail


Self-stacked submersible microbial fuel cell (SSMFC) for improved remote power generation from lake sediments.
MedLine Citation:
PMID:  22436687     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
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 294mW/m(2) and had an open circuit voltage (OCV) of 1.12V. 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.
Authors:
Yifeng Zhang; Irini Angelidaki
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-3-6
Journal Detail:
Title:  Biosensors & bioelectronics     Volume:  -     ISSN:  1873-4235     ISO Abbreviation:  -     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-3-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9001289     Medline TA:  Biosens Bioelectron     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier B.V. All rights reserved.
Affiliation:
Department of Environmental Engineering, Technical University of Denmark, DK-2800 Lyngby, Denmark.
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