2015 Volume 9 Issue 6
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Guo Jingsong, Lin Jiaqi, Liu Liang, Chen Youpeng, Fang Fang. Removal of endocrine disrupting chemicals from aqueous solution by adsorption using modified ceramicites[J]. Chinese Journal of Environmental Engineering, 2015, 9(6): 2547-2554. doi: 10.12030/j.cjee.20150603
Citation: Guo Jingsong, Lin Jiaqi, Liu Liang, Chen Youpeng, Fang Fang. Removal of endocrine disrupting chemicals from aqueous solution by adsorption using modified ceramicites[J]. Chinese Journal of Environmental Engineering, 2015, 9(6): 2547-2554. doi: 10.12030/j.cjee.20150603
shu

Removal of endocrine disrupting chemicals from aqueous solution by adsorption using modified ceramicites

  • 1.

    Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 401122, China

  • 2.

    Key Laboratory of Reservoir Aquatic Environment, Chinese Academy of Sciences, Chongqing 401122, China

  • 3.

    Faculty of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, China

  • Received Date: 03/07/2014
    Accepted Date: 16/04/2014
    Available Online: 09/06/2015
    Fund Project:
  • Modified ceramicites were prepared by hexadecyl trimethyl ammonium bromide (CTMAB). Experiments were carried out to evaluate the adsorption equilibrium and kinetics of endocrine disrupt chemicals (EDCs) (metoprolol, sulfamethoxazole, carbamazepine, clofibric acid, 17α-ethynylestradiol) onto original and modified ceramicites. Results showed that the CTMAB treatment changed the pore structure and surface functional groups of ceramicites: the ratio of pores that can effectively remove EDCs was strengthened, so as to the polarity of filter surface. Under room temperature, with both the initial concentration of EDCs and concentration of absorbents at 1 mg/L, the time of reaching adsorption equilibrium of EDCs onto original and modified ceramicites was about 5 minutes. The competitive adsorption of 5 EDCs on original and modified ceramicites was also investigated, concluded that SMZ and MTP were more competitive than CA. On modified ceramicites, the adsorption of EDCs was significantly improved. The adsorption process is mainly caused by both physical surface adsorption and partition. The study was conducted to provide theoretical basis of treatment of trace contaminants onto modified ceramicites, and to guarantee the drinking water treatment reaching the standard.
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Removal of endocrine disrupting chemicals from aqueous solution by adsorption using modified ceramicites

  • Received Date: 03/07/2014
  • Accepted Date: 16/04/2014
  • Available Online: 09/06/2015
Fund Project:

Abstract: Modified ceramicites were prepared by hexadecyl trimethyl ammonium bromide (CTMAB). Experiments were carried out to evaluate the adsorption equilibrium and kinetics of endocrine disrupt chemicals (EDCs) (metoprolol, sulfamethoxazole, carbamazepine, clofibric acid, 17α-ethynylestradiol) onto original and modified ceramicites. Results showed that the CTMAB treatment changed the pore structure and surface functional groups of ceramicites: the ratio of pores that can effectively remove EDCs was strengthened, so as to the polarity of filter surface. Under room temperature, with both the initial concentration of EDCs and concentration of absorbents at 1 mg/L, the time of reaching adsorption equilibrium of EDCs onto original and modified ceramicites was about 5 minutes. The competitive adsorption of 5 EDCs on original and modified ceramicites was also investigated, concluded that SMZ and MTP were more competitive than CA. On modified ceramicites, the adsorption of EDCs was significantly improved. The adsorption process is mainly caused by both physical surface adsorption and partition. The study was conducted to provide theoretical basis of treatment of trace contaminants onto modified ceramicites, and to guarantee the drinking water treatment reaching the standard.

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