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Bai Jieqiong, Yin Hua, Ye Jinshao, Peng Hui, Ye Qian, He Baoyan, Li Yuepeng, Zhang Na, Peng Sufen. Biosorption of zinc(Ⅱ) in water with decabromodiphenyl ethers[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1245-1250.
Citation: Bai Jieqiong, Yin Hua, Ye Jinshao, Peng Hui, Ye Qian, He Baoyan, Li Yuepeng, Zhang Na, Peng Sufen. Biosorption of zinc(Ⅱ) in water with decabromodiphenyl ethers[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1245-1250.
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Biosorption of zinc(Ⅱ) in water with decabromodiphenyl ethers

  • 1.

    Key Laboratory of Water/Soil Toxic Pollutants Control and Bioremediation of Guangdong Higher Education Institutes, Department of Environmental Engineering, Jinan University, Guangzhou 510632, China

  • 2.

    Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education,College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006, China

  • Received Date: 05/03/2012
    Accepted Date: 18/02/2012
    Available Online: 09/04/2013
    Fund Project:
  • The characteristics of Zn2+ biosorption by Stenotrophomonas maltophilia in the presence of decabromodiphenyl ether (BDE-209) were studied and its mechanisms were explored through cell inactivation, fourier transform infrared spectroscopy observation and X-ray photoelectron spectroscopy analysis. Freundlich adsorption isotherms fitted well to describe Zn2+ biosorption behavior. S. maltophilia was an effective strain to remove more than 90% of Zn2+ after dealing with 2.0 mg/L Zn2+ solution for 2 h with 2.5 g/L biomass. However, BDE-209 had an inhibitory effect on Zn2+ biosorption. The sequence of factors influencing Zn2+ biosorption was biomass>pH>concentration of BDE-209. Zn2+ biosorption by S. maltophilia included surface adsorption, transmembrane active transport and bioaccumulation. The mechanism study clarified acetyl amino group and hydroxyl group binded Zn2+, Ca2+ on the cell wall exchanged with Zn2+. Moreover, the valence state of Zn2+ was not changed by biosorption.
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Biosorption of zinc(Ⅱ) in water with decabromodiphenyl ethers

  • Received Date: 05/03/2012
  • Accepted Date: 18/02/2012
  • Available Online: 09/04/2013
Fund Project:

Abstract: The characteristics of Zn2+ biosorption by Stenotrophomonas maltophilia in the presence of decabromodiphenyl ether (BDE-209) were studied and its mechanisms were explored through cell inactivation, fourier transform infrared spectroscopy observation and X-ray photoelectron spectroscopy analysis. Freundlich adsorption isotherms fitted well to describe Zn2+ biosorption behavior. S. maltophilia was an effective strain to remove more than 90% of Zn2+ after dealing with 2.0 mg/L Zn2+ solution for 2 h with 2.5 g/L biomass. However, BDE-209 had an inhibitory effect on Zn2+ biosorption. The sequence of factors influencing Zn2+ biosorption was biomass>pH>concentration of BDE-209. Zn2+ biosorption by S. maltophilia included surface adsorption, transmembrane active transport and bioaccumulation. The mechanism study clarified acetyl amino group and hydroxyl group binded Zn2+, Ca2+ on the cell wall exchanged with Zn2+. Moreover, the valence state of Zn2+ was not changed by biosorption.

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