Team:Bielefeld-Germany/Project/MFC Efficiency

From 2013.igem.org

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==Overview==
==Overview==
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*MFC efficiency calculation and feasibility study for better evaluation of the MFC.
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[[File:MFC-Principle.png|250px|left|thumb|MFC-Principle|'''Figure 1:''' Schematic illustration of the general microbial fuel cell functional principle, showing the flow of charged species during operation.]]
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==Efficiency calculation==
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<p align="justify">
 
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To determine how well the different BioBricks we create really work in the designated environment, the design and construction of a suitable microbial fuel cell was necessary. This fuel cell has to meet several requirements. As explained [https://2013.igem.org/Team:Bielefeld-Germany/Project/MFC#General_design previously] it should consist of two chambers, separated by a material that is only traversable for cations. Both chambers have to contain an electrode, which has to be electrically conductive. Also, they should have a large surface area, in order to allow contact to a high number of electron donors at the same time. Both the anode and the cathode chamber also have to be air-tight, since the reaction has to take place under anaerobic conditions. For obvious reasons, we aim at keeping the costs for the cell low by using materials which cost as little as possible while still performing well.<br>
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==Feasibility study for MFC in sewage and waste treatment==
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Construction of a first prototype began in May. After initial testing, the design underwent significant changes over the course of the project. Important stages of this process are shown below, along with a description of their design and the flaws that led to the planning of a new model.
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<p align="justify">To assess the usability of our MFC regarding potential applications, we considered a feasibility study and compared it to our results. It shows, that our currently achieved efficiencies have the potential for efficient energy production in real world applications.</p>
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</p>
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===The study===
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'''Feasibility study for the application of a Microbial Fuel Cell in sewage and waste treatment''' (AZ 26580-31)
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'''Funded by''' the ‘Deutschen Bundesstiftung Umwelt – Osnabrück‘
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'''Reporting period''': 16.12.2008 – 31.08.2010
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'''Author''':
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*Prof. Dr.-Ing. Michael Sievers<sup>1</sup>
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*Dr. Ottmar Schläfer<sup>1</sup>
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*Dipl.-Ing. Hinnerk Bormann<sup>1</sup>
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*Dipl.-Ing. Michael Niedermeiser<sup>1</sup>
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*Prof. Dr. Detlef Bahnemann<sup>2</sup>
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*Dr. Ralf Dillert<sup>2</sup>
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**<sup>1</sup>  Clausthaler Umwelttechnik-Institut GmbH – CUTEC-Institut GmbH
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**<sup>2</sup>  Leibniz Universität Hannover
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==References==
 
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*Bennetto, H. P. (1990). Electricity generation by microorganisms. [http://www.ncbe.reading.ac.uk/NCBE/MATERIALS/METABOLISM/PDF/bennetto.pdf ''Biotechnology Education, 1''](4), 163-168.<br><br>
 
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*Chaudhuri, S. K., & Lovley, D. R. (2003). Electricity generation by direct oxidation of glucose in mediatorless microbial fuel cells. [http://www.nature.com/nbt/journal/v21/n10/abs/nbt867.html ''Nature biotechnology, 21''](10), 1229-1232.<br><br>
 
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*Logan, B. E., Hamelers, B., Rozendal, R., Schröder, U., Keller, J., Freguia, S., ... & Rabaey, K. (2006). Microbial fuel cells: methodology and technology. [http://pubs.acs.org/doi/abs/10.1021/es0605016 ''Environmental science & technology, 40''](17), 5181-5192.<br><br>
 
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*Oh, S., Min, B., & Logan, B. E. (2004). Cathode performance as a factor in electricity generation in microbial fuel cells. [http://pubs.acs.org/doi/abs/10.1021/es049422p ''Environmental science & technology, 38''](18), 4900-4904.<br><br>
 
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*Rabaey, K., Clauwaert, P., Aelterman, P., & Verstraete, W. (2005). Tubular microbial fuel cells for efficient electricity generation. [http://pubs.acs.org/doi/abs/10.1021/es050986i ''Environmental science & technology, 39''](20), 8077-8082.<br><br>
 
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*Sell, D., Krämer, P., & Kreysa, G. (1989). Use of an oxygen gas diffusion cathode and a three-dimensional packed bed anode in a bioelectrochemical fuel cell. [http://link.springer.com/article/10.1007/BF00262465 ''Applied microbiology and biotechnology, 31''](2), 211-213.<br><br>
 
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==References==
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*Logan BE (2008): Microbial Fuel Cells. ''John Wiley & Sons Inc''., New Jersey.
<br><br><br><br>
<br><br><br><br>

Revision as of 18:21, 27 October 2013



MFC Efficiency


Overview

  • MFC efficiency calculation and feasibility study for better evaluation of the MFC.


Efficiency calculation


Feasibility study for MFC in sewage and waste treatment

To assess the usability of our MFC regarding potential applications, we considered a feasibility study and compared it to our results. It shows, that our currently achieved efficiencies have the potential for efficient energy production in real world applications.


The study

Feasibility study for the application of a Microbial Fuel Cell in sewage and waste treatment (AZ 26580-31) Funded by the ‘Deutschen Bundesstiftung Umwelt – Osnabrück‘ Reporting period: 16.12.2008 – 31.08.2010 Author:

  • Prof. Dr.-Ing. Michael Sievers1
  • Dr. Ottmar Schläfer1
  • Dipl.-Ing. Hinnerk Bormann1
  • Dipl.-Ing. Michael Niedermeiser1
  • Prof. Dr. Detlef Bahnemann2
  • Dr. Ralf Dillert2
    • 1 Clausthaler Umwelttechnik-Institut GmbH – CUTEC-Institut GmbH
    • 2 Leibniz Universität Hannover



References

  • Logan BE (2008): Microbial Fuel Cells. John Wiley & Sons Inc., New Jersey.









Contents


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