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改性陶粒对水中内分泌干扰物的吸附去除

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郭劲松, 林佳琪, 刘靓, 陈猷鹏, 方芳. 改性陶粒对水中内分泌干扰物的吸附去除[J]. 环境工程学报, 2015, 9(6): 2547-2554. doi: 10.12030/j.cjee.20150603
引用本文: 郭劲松, 林佳琪, 刘靓, 陈猷鹏, 方芳. 改性陶粒对水中内分泌干扰物的吸附去除[J]. 环境工程学报, 2015, 9(6): 2547-2554. doi: 10.12030/j.cjee.20150603
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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
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改性陶粒对水中内分泌干扰物的吸附去除

  • 1.

    中国科学院重庆绿色智能技术研究院, 重庆 401122

  • 2.

    中国科学院水库水环境重点实验室, 重庆 401122

  • 3.

    重庆大学城市建设与环境工程学院, 重庆 400045

  • 基金项目:

    国家科技支撑计划课题(2012BAJ25B06)

    重庆市科技攻关重点项目(CSTC2012GGB20001)

  • 中图分类号: X522

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

  • Fund Project:

  • 摘要: 用CTMAB(十六烷三甲基溴化铵)对陶粒进行改性.实验研究了陶粒改性前后对5种内分泌干扰物EDCs(美托洛尔MTP、磺胺甲噁唑SMZ、卡马西平CBZ、对氯苯氧异丁酸CA、17α-乙炔基雌二醇EE2)的吸附特性.结果表明,CTMAB改性处理对陶粒的孔结构和表面性质都有影响,有效吸附的孔径所占比例和陶粒表面极性升高;室温条件下,EDCs初始浓度和吸附剂浓度均为1 mg/L时,实验用改性陶粒和陶粒达到吸附平衡的时间基本相同,均为5 min左右;改性陶粒能提高大部分EDCs的吸附量,5种内分泌干扰物混合物一起吸附时存在竞争,其中SMZ和MTP竞争力强,CA最弱;吸附机理包括表面物理吸附和分配作用.实验研究拟为改性陶粒应用于水中痕量污染物的处理提供理论依据,支撑保障饮用水处理达标的目的.
    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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  • 收稿日期:  2014-07-03
  • 刊出日期:  2015-06-09

改性陶粒对水中内分泌干扰物的吸附去除

  • 1.  中国科学院重庆绿色智能技术研究院, 重庆 401122
  • 2.  中国科学院水库水环境重点实验室, 重庆 401122
  • 3.  重庆大学城市建设与环境工程学院, 重庆 400045
  • 收稿日期:  2014-07-03
基金项目:

国家科技支撑计划课题(2012BAJ25B06)

重庆市科技攻关重点项目(CSTC2012GGB20001)

摘要: 用CTMAB(十六烷三甲基溴化铵)对陶粒进行改性.实验研究了陶粒改性前后对5种内分泌干扰物EDCs(美托洛尔MTP、磺胺甲噁唑SMZ、卡马西平CBZ、对氯苯氧异丁酸CA、17α-乙炔基雌二醇EE2)的吸附特性.结果表明,CTMAB改性处理对陶粒的孔结构和表面性质都有影响,有效吸附的孔径所占比例和陶粒表面极性升高;室温条件下,EDCs初始浓度和吸附剂浓度均为1 mg/L时,实验用改性陶粒和陶粒达到吸附平衡的时间基本相同,均为5 min左右;改性陶粒能提高大部分EDCs的吸附量,5种内分泌干扰物混合物一起吸附时存在竞争,其中SMZ和MTP竞争力强,CA最弱;吸附机理包括表面物理吸附和分配作用.实验研究拟为改性陶粒应用于水中痕量污染物的处理提供理论依据,支撑保障饮用水处理达标的目的.

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