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Biodegradation of di- n -Butyl Phthalate by Achromobacter sp. Isolated from Rural Domestic Wastewater

Author

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  • Decai Jin

    (Key Laboratory of Environmental Biotechnology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
    These authors contributed equally to this work.)

  • Xiao Kong

    (Key Laboratory of Environmental Biotechnology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
    These authors contributed equally to this work.)

  • Yujie Li

    (Environmental Protection Bureau of Shijiazhuang City, Shijiazhuang 050021, China
    These authors contributed equally to this work.)

  • Zhihui Bai

    (Key Laboratory of Environmental Biotechnology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China)

  • Guoqiang Zhuang

    (Key Laboratory of Environmental Biotechnology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China)

  • Xuliang Zhuang

    (Key Laboratory of Environmental Biotechnology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China)

  • Ye Deng

    (Key Laboratory of Environmental Biotechnology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China)

Abstract

A bacterial strain W-1, isolated from rural domestic wastewater, can utilize the environmental hormone di- n -butyl phthalate (DBP) as the sole carbon and energy source. The isolated bacterium species was confirmed to belong to the genus Achromobacter based on its 16S rRNA gene sequence. The results of substrate utilization tests showed that the strain W-1 could utilize other common phthalates and phenol. High-performance liquid chromatography analysis revealed that the optimal conditions for DBP degradation were pH 7.0, 35 °C, and an agitation rate of 175 rpm. Under these conditions, 500 mg/L of DBP was completely degraded within 30 h. The effects of heavy metals (50 mg/L Cu 2+ and 500 mg/L Pb 2+ ) and surfactants (100 mg/L SDS and 500 mg/L Tween 20) on DBP degradation were investigated. The results demonstrated that Cu 2+ and SDS severely inhibited DBP degradation and Pb 2+ weakly inhibited DBP degradation, while Tween 20 greatly enhanced DBP degradation. Furthermore, phthalate degradation genes were found to be located on a plasmid present in Achromobacter sp. W-1.

Suggested Citation

  • Decai Jin & Xiao Kong & Yujie Li & Zhihui Bai & Guoqiang Zhuang & Xuliang Zhuang & Ye Deng, 2015. "Biodegradation of di- n -Butyl Phthalate by Achromobacter sp. Isolated from Rural Domestic Wastewater," IJERPH, MDPI, vol. 12(10), pages 1-13, October.
    • Handle: RePEc:gam:jijerp:v:12:y:2015:i:10:p:13510-13522:d:57782
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    References listed on IDEAS

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    1. Xueping Chen & Shisan Xu & Tianfeng Tan & Sin Ting Lee & Shuk Han Cheng & Fred Wang Fat Lee & Steven Jing Liang Xu & Kin Chung Ho, 2014. "Toxicity and Estrogenic Endocrine Disrupting Activity of Phthalates and Their Mixtures," IJERPH, MDPI, vol. 11(3), pages 1-13, March.
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    Cited by:

    1. Han-Saem Lee & Su-Jin Lim & Byung-Ran Lim & Hong-Seok Kim & Heung-Soo Lee & Tae-Ung Ahn & Hyun-Sang Shin, 2022. "Spatiotemporal Evaluation of Water Quality and Hazardous Substances in Small Coastal Streams According to Watershed Characteristics," IJERPH, MDPI, vol. 19(2), pages 1-14, January.

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