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Study on the Changes in Immobilized Petroleum–Degrading Bacteria Beads in a Continuous Bioreactor Related to Physicochemical Performance, Degradation Ability, and Microbial Community

Author

Listed:
  • Yixuan Liu

    (College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China)

  • Weisi Li

    (Shandong Provincial Eco-Environmental Monitoring Center, Jinan 250102, China)

  • Yanlu Qiao

    (College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
    Institute of Yellow River Delta Earth Surface Processes and Ecological Integrity, Shandong University of Science and Technology, Qingdao 266590, China)

  • Fangying Yu

    (College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China)

  • Bowen Wang

    (College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China)

  • Jianliang Xue

    (College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
    Institute of Yellow River Delta Earth Surface Processes and Ecological Integrity, Shandong University of Science and Technology, Qingdao 266590, China)

  • Mianmian Wang

    (College of Chemical Engineering and Environment, Weifang University of Science and Technology, Weifang 262700, China)

  • Qing Jiang

    (College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
    Institute of Yellow River Delta Earth Surface Processes and Ecological Integrity, Shandong University of Science and Technology, Qingdao 266590, China)

  • Zhibin Zhou

    (Qingdao Port, Qingdao 266500, China)

Abstract

Continuous bioreactors for petroleum degradation and the effect factors of these bioreactors have rarely been mentioned in studies. In addition, indigenous bacteria living in seawater could influence the performance of continuous bioreactors with respect to petroleum degradation in practice. In this paper, a bioreactor fitted with immobilized petroleum–degrading bacteria beads was designed for further research. The results indicated that the diesel degradation rate of the bioreactor could remain above 50% over 27 days, while degradation performance decreased with bioremediation time. Intriguingly, the diameters of immobilized petroleum–degrading bacteria beads were reduced by 32.49% after 45 days remediation compared with the initial size of the immobilized petroleum–degrading bacteria beads. Change in immobilized petroleum–degrading bacteria beads was considered to correlate remarkably with reduced degradation efficiency. Therefore, this paper will be helpful for further study and improvement of bioreactors in the practical context of oil-spill accident recovery.

Suggested Citation

  • Yixuan Liu & Weisi Li & Yanlu Qiao & Fangying Yu & Bowen Wang & Jianliang Xue & Mianmian Wang & Qing Jiang & Zhibin Zhou, 2022. "Study on the Changes in Immobilized Petroleum–Degrading Bacteria Beads in a Continuous Bioreactor Related to Physicochemical Performance, Degradation Ability, and Microbial Community," IJERPH, MDPI, vol. 19(18), pages 1-13, September.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:18:p:11348-:d:910949
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    References listed on IDEAS

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    1. Wanpeng Wang & Zongze Shao, 2014. "The long-chain alkane metabolism network of Alcanivorax dieselolei," Nature Communications, Nature, vol. 5(1), pages 1-11, December.
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