| DOI | Resolve DOI: https://doi.org/10.1016/j.biortech.2021.125404 |
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| Author | Search for: Cao, Yiqi; Search for: Zhang, Baiyu; Search for: Zhu, Zhiwen; Search for: Rostami, Masoumeh; Search for: Dong, Guihua; Search for: Ling, Jingjing; Search for: Lee, Kenneth; Search for: Greer, Charles W.1; Search for: Chen, Bing |
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| Affiliation | - National Research Council Canada. Energy, Mining and Environment
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| Funder | Search for: Dairy Farmers of Ontario; Search for: Canada Research Chairs; Search for: Natural Sciences and Engineering Research Council of Canada; Search for: Fisheries and Oceans Canada; Search for: Canada Foundation for Innovation |
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| Format | Text, Article |
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| Subject | heavy crude; magnetic recovery; oil-degrading bacteria; bioavailability; aromatics |
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| Abstract | Heavy crude oil (HCO) pollution has gained global attention, but traditional bioremediating practices demonstrate limited effectiveness. This study developed magnetic nanoparticles decorated bacteria (MNPB) using an oil-degrading and biosurfactant-producing Rhodococcus erythropolis species and identified a novel access-dispersion-recovery strategy for enhanced HCO pollution mitigation. The strategy entails (1) magnetic navigation of the MNPB towards HCO layer, (2) enhanced oil dispersion and formation of suspended oil-bacteria aggregates, and (3) magnetic recovery of these aggregates. The UV-spectrophotometer analysis showed that this strategy can enable up to 62% removal of HCO. The GC–MS analysis demonstrated that the MNPB enhanced the degradation of low-molecular-weight aromatics comparing with the pure bacteria, and the recovery process further removed oil-bacteria aggregates and entrained high-molecular-weight aromatics. The feasibility of using MNPB to mitigate HCO pollution could shed light on the emerging bioremediation applications. |
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| Publication date | 2021-06-12 |
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| Publisher | Elsevier |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Identifier | S0960852421007446 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 7fec90e8-fee2-44aa-b1f4-254fa1b75934 |
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| Record created | 2022-09-02 |
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| Record modified | 2022-09-02 |
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