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Electricity Production Coupled to Ammonium in a Microbial Fuel Cell.

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Title: Electricity Production Coupled to Ammonium in a Microbial Fuel Cell.
Authors: ZHEN HE1,2, JINJUN KAN1, YANBING WANG1, YUELONG HUANG2, MANSFELD, FLORIAN2, NEALSON, KENNETH H.1 knealson@usc.edu
Source: Environmental Science & Technology. 5/1/2009, Vol. 43 Issue 9, p3391-3397. 7p.
Subjects: Electricity experiments, Cathodes, Ammonium, Microbial fuel cells, Electric power production, Electrolytic oxidation, Coulomb potential, Denitrifying bacteria
Abstract: The production of electricity from ammonium was examined using a rotating-cathode microbial fuel cell (MFC). The addition of ammonium chloride, ammonium sulfate, or ammonium phosphate (monobasic) resulted in electricity generation, while adding sodium chloride, nitrate, or nitrite did not cause any increase in current production. The peak current increased with increasing amount of ammonium addition up to 62.3 mM of ammonium chloride, suggesting that ammonium was involved in electricity generation either directly as the anodic fuel or indirectly as substrates for nitrifiers to produce organic compounds for heterotrophs. Adding nitrate or nitrite with ammonium increased current production compared to solely ammonium addition. Using 16S rRNA-linked molecular analyses, we found ammonium-oxidizing bacteria and denitrifying bacteria on both the anode and cathode electrodes, whereas no anammox bacteria were detected. The dominant ammonium-oxidizing bacteria were closely related to Nitrosomonas europaea. The present MFC achieved an ammonium removal efficiency of 49.2 ± 5.9 or 69.1 ± 3.6%, depending on hydraulic retention time, but exhibited a very low Coulombic efficiency. [ABSTRACT FROM AUTHOR]
Copyright of Environmental Science & Technology is the property of American Chemical Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 40416739
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Electricity Production Coupled to Ammonium in a Microbial Fuel Cell.
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  Data: <searchLink fieldCode="JN" term="%22Environmental+Science+%26+Technology%22">Environmental Science & Technology</searchLink>. 5/1/2009, Vol. 43 Issue 9, p3391-3397. 7p.
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  Data: <searchLink fieldCode="DE" term="%22Electricity+experiments%22">Electricity experiments</searchLink><br /><searchLink fieldCode="DE" term="%22Cathodes%22">Cathodes</searchLink><br /><searchLink fieldCode="DE" term="%22Ammonium%22">Ammonium</searchLink><br /><searchLink fieldCode="DE" term="%22Microbial+fuel+cells%22">Microbial fuel cells</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+power+production%22">Electric power production</searchLink><br /><searchLink fieldCode="DE" term="%22Electrolytic+oxidation%22">Electrolytic oxidation</searchLink><br /><searchLink fieldCode="DE" term="%22Coulomb+potential%22">Coulomb potential</searchLink><br /><searchLink fieldCode="DE" term="%22Denitrifying+bacteria%22">Denitrifying bacteria</searchLink>
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  Data: The production of electricity from ammonium was examined using a rotating-cathode microbial fuel cell (MFC). The addition of ammonium chloride, ammonium sulfate, or ammonium phosphate (monobasic) resulted in electricity generation, while adding sodium chloride, nitrate, or nitrite did not cause any increase in current production. The peak current increased with increasing amount of ammonium addition up to 62.3 mM of ammonium chloride, suggesting that ammonium was involved in electricity generation either directly as the anodic fuel or indirectly as substrates for nitrifiers to produce organic compounds for heterotrophs. Adding nitrate or nitrite with ammonium increased current production compared to solely ammonium addition. Using 16S rRNA-linked molecular analyses, we found ammonium-oxidizing bacteria and denitrifying bacteria on both the anode and cathode electrodes, whereas no anammox bacteria were detected. The dominant ammonium-oxidizing bacteria were closely related to Nitrosomonas europaea. The present MFC achieved an ammonium removal efficiency of 49.2 ± 5.9 or 69.1 ± 3.6%, depending on hydraulic retention time, but exhibited a very low Coulombic efficiency. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Environmental Science & Technology is the property of American Chemical Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1021/es803492c
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      – Code: eng
        Text: English
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        PageCount: 7
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      – SubjectFull: Electricity experiments
        Type: general
      – SubjectFull: Cathodes
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      – SubjectFull: Ammonium
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      – SubjectFull: Microbial fuel cells
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      – SubjectFull: Electric power production
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      – SubjectFull: Electrolytic oxidation
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      – SubjectFull: Coulomb potential
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      – SubjectFull: Denitrifying bacteria
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      – TitleFull: Electricity Production Coupled to Ammonium in a Microbial Fuel Cell.
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              Text: 5/1/2009
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