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Dissolved organic matter accelerates microbial degradation of 17 alpha-ethinylestradiol in the presence of iron mineral.

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Title: Dissolved organic matter accelerates microbial degradation of 17 alpha-ethinylestradiol in the presence of iron mineral.
Authors: He, Huan1 (AUTHOR), Shi, Min1 (AUTHOR), Yang, Xiaoxia1 (AUTHOR), Zhan, Juhong1,2 (AUTHOR) juhong.zhan@tsinghua-riet.com, Lin, Yanting1 (AUTHOR), Guo, Ziwei1 (AUTHOR), Liao, Zhicheng1 (AUTHOR), Lai, Chaochao1 (AUTHOR), Ren, Xiaomin1 (AUTHOR), Huang, Bin1,3 (AUTHOR) huangbin@kust.edu.cn, Pan, Xuejun1,3 (AUTHOR)
Source: Journal of Environmental Sciences (Elsevier). May2024, Vol. 139, p364-376. 13p.
Subject Terms: *Dissolved organic matter, *Iron, *Humic acid, *Minerals, Pyrites, Goethite, Hydroxyl group, Surface morphology
Abstract: • The microbial degradation of EE2 was accelerated by iron minerals and HA. • The HO• was the main active substance for microbial degradation of EE2. • The effect of microbial secretions on HO• production was clarified. • The microbial degradation changed the surface morphology of iron minerals. Dissolved organic matter (DOM) and iron minerals widely existing in the natural aquatic environment can mediate the migration and transformation of organic pollutants. However, the mechanism of interaction between DOM and iron minerals in the microbial degradation of pollutants deserves further investigation. In this study, the mechanism of 17 alpha-ethinylestradiol (EE2) biodegradation mediated by humic acid (HA) and three kinds of iron minerals (goethite, magnetite, and pyrite) was investigated. The results found that HA and iron minerals significantly accelerated the biodegradation process of EE2, and the highest degradation efficiency of EE2 (48%) was observed in the HA-mediated microbial system with pyrite under aerobic conditions. Furthermore, it had been demonstrated that hydroxyl radicals (HO•) was the main active substance responsible for the microbial degradation of EE2. HO• is primarily generated through the reaction between hydrogen peroxide secreted by microorganisms and Fe(II), with aerobic conditions being more conducive. The presence of iron minerals and HA could change the microbial communities in the EE2 biodegradation system. These findings provide new information for exploring the migration and transformation of pollutants by microorganisms in iron-rich environments. [Display omitted] [ABSTRACT FROM AUTHOR]
Copyright of Journal of Environmental Sciences (Elsevier) 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.)
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  Label: Title
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  Data: Dissolved organic matter accelerates microbial degradation of 17 alpha-ethinylestradiol in the presence of iron mineral.
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  Data: <searchLink fieldCode="AR" term="%22He%2C+Huan%22">He, Huan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shi%2C+Min%22">Shi, Min</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Xiaoxia%22">Yang, Xiaoxia</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhan%2C+Juhong%22">Zhan, Juhong</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> juhong.zhan@tsinghua-riet.com</i><br /><searchLink fieldCode="AR" term="%22Lin%2C+Yanting%22">Lin, Yanting</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Guo%2C+Ziwei%22">Guo, Ziwei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liao%2C+Zhicheng%22">Liao, Zhicheng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lai%2C+Chaochao%22">Lai, Chaochao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ren%2C+Xiaomin%22">Ren, Xiaomin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Huang%2C+Bin%22">Huang, Bin</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<i> huangbin@kust.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Pan%2C+Xuejun%22">Pan, Xuejun</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Environmental+Sciences+%28Elsevier%29%22">Journal of Environmental Sciences (Elsevier)</searchLink>. May2024, Vol. 139, p364-376. 13p.
– Name: Subject
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  Data: *<searchLink fieldCode="DE" term="%22Dissolved+organic+matter%22">Dissolved organic matter</searchLink><br />*<searchLink fieldCode="DE" term="%22Iron%22">Iron</searchLink><br />*<searchLink fieldCode="DE" term="%22Humic+acid%22">Humic acid</searchLink><br />*<searchLink fieldCode="DE" term="%22Minerals%22">Minerals</searchLink><br /><searchLink fieldCode="DE" term="%22Pyrites%22">Pyrites</searchLink><br /><searchLink fieldCode="DE" term="%22Goethite%22">Goethite</searchLink><br /><searchLink fieldCode="DE" term="%22Hydroxyl+group%22">Hydroxyl group</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+morphology%22">Surface morphology</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: • The microbial degradation of EE2 was accelerated by iron minerals and HA. • The HO• was the main active substance for microbial degradation of EE2. • The effect of microbial secretions on HO• production was clarified. • The microbial degradation changed the surface morphology of iron minerals. Dissolved organic matter (DOM) and iron minerals widely existing in the natural aquatic environment can mediate the migration and transformation of organic pollutants. However, the mechanism of interaction between DOM and iron minerals in the microbial degradation of pollutants deserves further investigation. In this study, the mechanism of 17 alpha-ethinylestradiol (EE2) biodegradation mediated by humic acid (HA) and three kinds of iron minerals (goethite, magnetite, and pyrite) was investigated. The results found that HA and iron minerals significantly accelerated the biodegradation process of EE2, and the highest degradation efficiency of EE2 (48%) was observed in the HA-mediated microbial system with pyrite under aerobic conditions. Furthermore, it had been demonstrated that hydroxyl radicals (HO•) was the main active substance responsible for the microbial degradation of EE2. HO• is primarily generated through the reaction between hydrogen peroxide secreted by microorganisms and Fe(II), with aerobic conditions being more conducive. The presence of iron minerals and HA could change the microbial communities in the EE2 biodegradation system. These findings provide new information for exploring the migration and transformation of pollutants by microorganisms in iron-rich environments. [Display omitted] [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Environmental Sciences (Elsevier) 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.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.jes.2023.05.042
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 13
        StartPage: 364
    Subjects:
      – SubjectFull: Dissolved organic matter
        Type: general
      – SubjectFull: Iron
        Type: general
      – SubjectFull: Humic acid
        Type: general
      – SubjectFull: Minerals
        Type: general
      – SubjectFull: Pyrites
        Type: general
      – SubjectFull: Goethite
        Type: general
      – SubjectFull: Hydroxyl group
        Type: general
      – SubjectFull: Surface morphology
        Type: general
    Titles:
      – TitleFull: Dissolved organic matter accelerates microbial degradation of 17 alpha-ethinylestradiol in the presence of iron mineral.
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            NameFull: He, Huan
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            – D: 01
              M: 05
              Text: May2024
              Type: published
              Y: 2024
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              Value: 139
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