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6_Indigenous microbial communities in Albertan sediments are capable of anaerobic benzene biodegradation.docx
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Indigenous microbial communities in Albertan sediments are capable of anaerobic benzene biodegradation under methanogenic, sulfate-reducing, nitrate-reducing, and iron-reducing redox conditions

  • Author(s) / Creator(s)
  • Alberta is a major center for oil and gas production, and correspondingly harbors
    hundreds of unresolved contamination sites by environmental hazards such
    as benzene (C6H6). Due to its cost-effectiveness, bioremediation has become a
    promising strategy for C6H6 removal. Contamination sites typically take on an
    anaerobic context, which complicates the energetics of contamination sites and
    is a subject that is scarcely broached in studies of Albertan sediments. This study
    examines the innate potential for indigenous microbial communities in Albertan
    sediments to remove C6H6 in a multitude of reduced conditions. Community
    profiles of these sediments were analyzed by 16S rRNA gene amplicon sequencing,
    and removal rates and reaction stoichiometries were observed by gas
    chromatography and ion chromatography. Organisms belonging to known primary
    degrader taxa were identified, including Geobacter (iron-reducing), and
    Peptococcaceae (nitrate-reducing). Furthermore, benzene removal patterns of
    the cultures were similar to those observed in previously reported microcosms,
    with lag times between 70 and 168 days and removal rates between 3.27 and
    12.70 μM/day. Such information could support a more comprehensive survey
    of Albertan sediment consortia, which may eventually be utilized in informing
    future remediation efforts in the province.

  • Date created
    2020-01-01
  • Subjects / Keywords
  • Type of Item
    Article (Published)
  • DOI
    https://doi.org/10.7939/r3-f4x8-vv41
  • License
    This is the peer reviewed version of the following article: Lee, K., & Ulrich, A. (2021). Indigenous microbial communities in Albertan sediments are capable of anaerobic benzene biodegradation under methanogenic, sulfate‐reducing, nitrate‐reducing, and iron‐reducing redox conditions. Water Environment Research (10614303), 93(4), 524–534., which has been published in final form athttps://doi.org/10.1002/wer.1454. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
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  • Citation for previous publication
    • Lee, K., & Ulrich, A. (2021). Indigenous microbial communities in Albertan sediments are capable of anaerobic benzene biodegradation under methanogenic, sulfate‐reducing, nitrate‐reducing, and iron‐reducing redox conditions. Water Environment Research (10614303), 93(4), 524–534. https://doi-org.login.ezproxy.library.ualberta.ca/10.1002/wer.1454