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Enhanced boron removal by electricity generation in a microbial fuel cell.

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Title: Enhanced boron removal by electricity generation in a microbial fuel cell.
Authors: Ping, Qingyun1, Abu-Reesh, Ibrahim M.2, He, Zhen1 zhenhe@vt.edu
Source: Desalination. Nov2016, Vol. 398, p165-170. 6p.
Subjects: Microbial fuel cells, Electric power production, Saline water conversion, Irrigation, Effect of boron on plants, Cathodes
Abstract: Boron needs to be removed during desalination, because excessive boron in the product water for irrigation can deteriorate plant growth. In this study, a microbial fuel cell (MFC) equipped with anion exchange membrane (AEM) was proposed and investigated to remove boron via two successive steps: boric acid is ionized to borate ions in the presence of high pH as a result of cathode reaction, and borate ions are transported across AEM driven by electricity generation. Two scenarios were examined, the MFC as a pretreatment process and the MFC as a post-treatment step in connection with conventional desalination. In the pretreatment mode, the MFC achieved 40–50% boron removal and the high pH condition could benefit downstream desalination or other methods for further boron removal. In the post-treatment mode, the MFC removed 80–90% of boron and decreased the boron concentration from 20 to 2 mg L − 1 or from 5 to 1 mg L − 1 , which meets the irrigation water requirement. The removal rate in this MFC was much higher than that of a previously reported microbial desalination cell coupled with Donnan Dialysis system. Those results have demonstrated the potential of using MFCs for boron removal with benefits of conductivity reduction and electricity generation. [ABSTRACT FROM AUTHOR]
Copyright of Desalination is the property of Elsevier B.V. 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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Header DbId: egs
DbLabel: Engineering Source
An: 118025553
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PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Enhanced boron removal by electricity generation in a microbial fuel cell.
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  Data: <searchLink fieldCode="AR" term="%22Ping%2C+Qingyun%22">Ping, Qingyun</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Abu-Reesh%2C+Ibrahim+M%2E%22">Abu-Reesh, Ibrahim M.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22He%2C+Zhen%22">He, Zhen</searchLink><relatesTo>1</relatesTo><i> zhenhe@vt.edu</i>
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  Data: <searchLink fieldCode="JN" term="%22Desalination%22">Desalination</searchLink>. Nov2016, Vol. 398, p165-170. 6p.
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  Data: <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="%22Saline+water+conversion%22">Saline water conversion</searchLink><br /><searchLink fieldCode="DE" term="%22Irrigation%22">Irrigation</searchLink><br /><searchLink fieldCode="DE" term="%22Effect+of+boron+on+plants%22">Effect of boron on plants</searchLink><br /><searchLink fieldCode="DE" term="%22Cathodes%22">Cathodes</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Boron needs to be removed during desalination, because excessive boron in the product water for irrigation can deteriorate plant growth. In this study, a microbial fuel cell (MFC) equipped with anion exchange membrane (AEM) was proposed and investigated to remove boron via two successive steps: boric acid is ionized to borate ions in the presence of high pH as a result of cathode reaction, and borate ions are transported across AEM driven by electricity generation. Two scenarios were examined, the MFC as a pretreatment process and the MFC as a post-treatment step in connection with conventional desalination. In the pretreatment mode, the MFC achieved 40–50% boron removal and the high pH condition could benefit downstream desalination or other methods for further boron removal. In the post-treatment mode, the MFC removed 80–90% of boron and decreased the boron concentration from 20 to 2 mg L − 1 or from 5 to 1 mg L − 1 , which meets the irrigation water requirement. The removal rate in this MFC was much higher than that of a previously reported microbial desalination cell coupled with Donnan Dialysis system. Those results have demonstrated the potential of using MFCs for boron removal with benefits of conductivity reduction and electricity generation. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Desalination is the property of Elsevier B.V. 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.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=118025553
RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.desal.2016.07.031
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 6
        StartPage: 165
    Subjects:
      – SubjectFull: Microbial fuel cells
        Type: general
      – SubjectFull: Electric power production
        Type: general
      – SubjectFull: Saline water conversion
        Type: general
      – SubjectFull: Irrigation
        Type: general
      – SubjectFull: Effect of boron on plants
        Type: general
      – SubjectFull: Cathodes
        Type: general
    Titles:
      – TitleFull: Enhanced boron removal by electricity generation in a microbial fuel cell.
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            NameFull: Ping, Qingyun
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            NameFull: Abu-Reesh, Ibrahim M.
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            NameFull: He, Zhen
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            – D: 15
              M: 11
              Text: Nov2016
              Type: published
              Y: 2016
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              Value: 398
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            – TitleFull: Desalination
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