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Polypyrrole-Grafted Coconut Shell Biological Carbon as a Potential Adsorbent for Methyl Tert -Butyl Ether Removal: Characterization and Adsorption Capability

Author

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  • Shanshan Li

    (Department of Environmental Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

  • Keke Qian

    (Department of Environmental Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

  • Shan Wang

    (Department of Environmental Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

  • Kaiqiang Liang

    (Research Institute of Yanchang Petroleum (GROUP) Co. Ltd., Xi’an 710075, China)

  • Wei Yan

    (Department of Environmental Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China)

Abstract

Methyl tert -butyl ether (MTBE) has been used as a common gasoline additive worldwide since the late twentieth century, and it has become the most frequently detected groundwater pollutant in many countries. This study aimed to synthesize a novel microbial carrier to improve its adsorptive capacity for MTBE and biofilm formation, compared to the traditional granular activated carbon (GAC). A polypyrrole (PPy)-modified GAC composite (PPy/GAC) was synthesized, and characterized by Fourier transform infrared spectroscopy (FT-IR) and Brunauer-Emmett-Teller (BET) surface area analysis. The adsorption behaviors of MTBE were well described by the pseudo-second-order and Langmuir isotherm models. Furthermore, three biofilm reactors were established with PPy/GAC, PPy, and GAC as the carriers, respectively, and the degradation of MTBE under continuous flow was investigated. Compared to the biofilm reactors with PPy or GAC (which both broke after a period of operation), the PPy/GAC biofilm column produced stable effluents under variable treatment conditions with a long-term effluent MTBE concentration <20 μg/L. Pseudomonas aeruginosa and Acinetobacter pittii may be the predominant bacteria responsible for MTBE degradation in these biofilm reactors.

Suggested Citation

  • Shanshan Li & Keke Qian & Shan Wang & Kaiqiang Liang & Wei Yan, 2017. "Polypyrrole-Grafted Coconut Shell Biological Carbon as a Potential Adsorbent for Methyl Tert -Butyl Ether Removal: Characterization and Adsorption Capability," IJERPH, MDPI, vol. 14(2), pages 1-15, January.
    • Handle: RePEc:gam:jijerp:v:14:y:2017:i:2:p:113-:d:88680
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    1. C. K. Stover & X. Q. Pham & A. L. Erwin & S. D. Mizoguchi & P. Warrener & M. J. Hickey & F.S. L. Brinkman & W. O. Hufnagle & D. J. Kowalik & M. Lagrou & R. L. Garber & L. Goltry & E. Tolentino & S. We, 2000. "Complete genome sequence of Pseudomonas aeruginosa PAO1, an opportunistic pathogen," Nature, Nature, vol. 406(6799), pages 959-964, August.
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    Cited by:

    1. Li Liu & Shisuo Fan & Yang Li, 2018. "Removal Behavior of Methylene Blue from Aqueous Solution by Tea Waste: Kinetics, Isotherms and Mechanism," IJERPH, MDPI, vol. 15(7), pages 1-16, June.

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