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Remediation of soil contaminated with decabrominated diphenyl ether using white rot fungi

    Junqin Wu Affiliation
    ; Yuechun Zhao Affiliation
    ; Lu Lie Affiliation
    ; Biao Fan Affiliation
    ; Minghua Li Affiliation

Abstract

Biodegradation of decabrominated diphenyl ether (BDE-209) in soil by white rot fungi under various experimental conditions was investigated in this study. It was found that BDE-209 in soil could be rapidly and efficiently degraded by white rot fungi, and the biodegradation fits the pseudo-first-order kinetics during a 15-day incubation period. The residues of BDE-209 in soil decreased with the increased amount of white rot fungi addition. It can be seen from the results that white rot fungi have a good degradation ability with one-step and two-step addition method. In native soil, the degradation of BDE-209 reached 52.65%, which was higher than that in sterilized soil. About 37.76–53.74% of BDE-209 degradation was observed in different soil types after 15 days. In addition, it was confirmed in this study that the presence of Cu2+, Cd2+ could enhance the remediation of soil contaminated with BDE-209, and the residues decreased by 69.20% and 54.65% for Cu2+ and Cd2+ treatment, respectively. However, the superior ability of white rot fungi to degrade BDE-209 was not obvious at low pollution level (<0.5 mg kg−1).


First published online: 08 Feb 2013

Keyword : white rot fungi, decabrominated diphenyl ether (BDE-209), biodegradation, soil

How to Cite
Wu, J., Zhao, Y., Lie, L., Fan, B., & Li, M. (2013). Remediation of soil contaminated with decabrominated diphenyl ether using white rot fungi. Journal of Environmental Engineering and Landscape Management, 21(3), 171-179. https://doi.org/10.3846/16486897.2012.721374
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Oct 14, 2013
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This work is licensed under a Creative Commons Attribution 4.0 International License.