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Domestic wastewater treatment towards reuse by "self-supplied" microbial electrochemical system assisted UV/H2O2 process.

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Title: Domestic wastewater treatment towards reuse by "self-supplied" microbial electrochemical system assisted UV/H2O2 process.
Authors: Yang, Kaichao1 (AUTHOR), Abu-Reesh, Ibrahim M.2 (AUTHOR), He, Zhen1 (AUTHOR) zhenhe@wustl.edu
Source: Water Research. Dec2024, Vol. 267, pN.PAG-N.PAG. 1p.
Subjects: Sewage purification, Waste recycling, Wastewater treatment, Escherichia coli, Chemical decomposition, Water reuse
Abstract: • A "self-supplied" process is developed via integrating MES with UV/ H 2 O 2. • Microbial electrochemical system achieves organic degradation and H 2 O 2 formation. • UV/H 2 O 2 effectively removes representative contaminants - PPCP diclofenac and E. coli. • The proposed system is examined for treating actual wastewater with satisfactory performance. Domestic wastewater is a potential source of water for non-potable reuse that may help address the global water, energy, and resource challenges. Herein, a "self-supplied" process through integrating microbial electrochemical system (MES) with UV/H 2 O 2 was developed and investigated for wastewater treatment. H 2 O 2 was "self-supplied" from MES while the MES catholyte was "self-supplied" from the final effluent of UV/H 2 O 2. It was found that the MES accomplished > 80 % degradation of chemical oxygen demand (COD) through bioanode degradation, and produced 18 - 20 mg L −1 H 2 O 2 via oxygen reduction reaction in the gas diffusion cathode. The MES effluent was further treated by the UV/H 2 O 2 process, which achieved the complete removal of recalcitrant diclofenac and > 6 log inactivation of Escherichia coli. The enhanced treatment performance of UV/H 2 O 2 was demonstrated via a comparison with the control experiments (UV or H 2 O 2 treatment) and benefited from ·OH generation and sulfide removal. When treating the actual wastewater, the proposed system exhibited consistent treatment performance for the organic compounds and recalcitrant contaminants, and the quality of the treated water would meet the non-potable water reuse guidelines. The results of this study encourage the further exploration of emerging contaminant removal, system coordination, and use of renewable energy by the cooperation between MES and UV/H 2 O 2. [Display omitted] [ABSTRACT FROM AUTHOR]
Copyright of Water Research is the property of Pergamon Press - An Imprint of Elsevier Science 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: 181033793
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Domestic wastewater treatment towards reuse by "self-supplied" microbial electrochemical system assisted UV/H2O2 process.
– Name: Author
  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Yang%2C+Kaichao%22">Yang, Kaichao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Abu-Reesh%2C+Ibrahim+M%2E%22">Abu-Reesh, Ibrahim M.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22He%2C+Zhen%22">He, Zhen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zhenhe@wustl.edu</i>
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  Data: <searchLink fieldCode="JN" term="%22Water+Research%22">Water Research</searchLink>. Dec2024, Vol. 267, pN.PAG-N.PAG. 1p.
– Name: Subject
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  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Sewage+purification%22">Sewage purification</searchLink><br /><searchLink fieldCode="DE" term="%22Waste+recycling%22">Waste recycling</searchLink><br /><searchLink fieldCode="DE" term="%22Wastewater+treatment%22">Wastewater treatment</searchLink><br /><searchLink fieldCode="DE" term="%22Escherichia+coli%22">Escherichia coli</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+decomposition%22">Chemical decomposition</searchLink><br /><searchLink fieldCode="DE" term="%22Water+reuse%22">Water reuse</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: • A "self-supplied" process is developed via integrating MES with UV/ H 2 O 2. • Microbial electrochemical system achieves organic degradation and H 2 O 2 formation. • UV/H 2 O 2 effectively removes representative contaminants - PPCP diclofenac and E. coli. • The proposed system is examined for treating actual wastewater with satisfactory performance. Domestic wastewater is a potential source of water for non-potable reuse that may help address the global water, energy, and resource challenges. Herein, a "self-supplied" process through integrating microbial electrochemical system (MES) with UV/H 2 O 2 was developed and investigated for wastewater treatment. H 2 O 2 was "self-supplied" from MES while the MES catholyte was "self-supplied" from the final effluent of UV/H 2 O 2. It was found that the MES accomplished > 80 % degradation of chemical oxygen demand (COD) through bioanode degradation, and produced 18 - 20 mg L −1 H 2 O 2 via oxygen reduction reaction in the gas diffusion cathode. The MES effluent was further treated by the UV/H 2 O 2 process, which achieved the complete removal of recalcitrant diclofenac and > 6 log inactivation of Escherichia coli. The enhanced treatment performance of UV/H 2 O 2 was demonstrated via a comparison with the control experiments (UV or H 2 O 2 treatment) and benefited from ·OH generation and sulfide removal. When treating the actual wastewater, the proposed system exhibited consistent treatment performance for the organic compounds and recalcitrant contaminants, and the quality of the treated water would meet the non-potable water reuse guidelines. The results of this study encourage the further exploration of emerging contaminant removal, system coordination, and use of renewable energy by the cooperation between MES and UV/H 2 O 2. [Display omitted] [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Water Research is the property of Pergamon Press - An Imprint of Elsevier Science 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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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.watres.2024.122504
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      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Sewage purification
        Type: general
      – SubjectFull: Waste recycling
        Type: general
      – SubjectFull: Wastewater treatment
        Type: general
      – SubjectFull: Escherichia coli
        Type: general
      – SubjectFull: Chemical decomposition
        Type: general
      – SubjectFull: Water reuse
        Type: general
    Titles:
      – TitleFull: Domestic wastewater treatment towards reuse by "self-supplied" microbial electrochemical system assisted UV/H2O2 process.
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            NameFull: Yang, Kaichao
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            NameFull: Abu-Reesh, Ibrahim M.
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            NameFull: He, Zhen
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            – D: 01
              M: 12
              Text: Dec2024
              Type: published
              Y: 2024
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              Value: 267
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