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3种人工湿地基质对邻苯二甲酸二丁酯的吸附特性

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张晓影, 海热提, 王晓慧, 李媛. 3种人工湿地基质对邻苯二甲酸二丁酯的吸附特性[J]. 环境工程学报, 2017, 11(3): 1389-1394. doi: 10.12030/j.cjee.201512050
引用本文: 张晓影, 海热提, 王晓慧, 李媛. 3种人工湿地基质对邻苯二甲酸二丁酯的吸附特性[J]. 环境工程学报, 2017, 11(3): 1389-1394. doi: 10.12030/j.cjee.201512050
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ZHANG Xiaoying, HAI Reti, WANG Xiaohui, LI Yuan. Adsorption characteristics of three kinds of constructed wetland substrate on dibutyl phthalate[J]. Chinese Journal of Environmental Engineering, 2017, 11(3): 1389-1394. doi: 10.12030/j.cjee.201512050
Citation: ZHANG Xiaoying, HAI Reti, WANG Xiaohui, LI Yuan. Adsorption characteristics of three kinds of constructed wetland substrate on dibutyl phthalate[J]. Chinese Journal of Environmental Engineering, 2017, 11(3): 1389-1394. doi: 10.12030/j.cjee.201512050
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3种人工湿地基质对邻苯二甲酸二丁酯的吸附特性

  • 1.

    北京化工大学化学工程学院, 北京市水处理环保材料工程技术研究中心, 北京 100029

  • 基金项目:

    北京市科技计划项目（Z15111000210000）

    国家自然科学基金资助项目（51408020）

    中央高校基本科研业务费（JD1503）

  • 中图分类号: X524

Adsorption characteristics of three kinds of constructed wetland substrate on dibutyl phthalate

  • 1.

    Water Treatment and Environmental Protection Materials Engineering Technology Research Center of Beijing, School of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China

  • Fund Project:

  • 摘要: 通过湿地基质对邻苯二甲酸二丁酯（DBP）的吸附动力学和等温吸附实验，对比天然土壤、沸石、陶粒对DBP的吸附特性，作为人工湿地处理含DBP废水的理论依据。结果表明，DBP浓度在30~1 000 μg·L-1时，Freundlich比Langmuir模型更好地模拟出各湿地基质对DBP的吸附特征。3种基质对DBP的饱和吸附量大小：土壤（0.065 5 mg·g-1）> 沸石（0.016 4 mg·g-1）> 陶粒（0.013 7 mg·g-1）。3种基质对DBP的缓冲能力大小依次为土壤 > 陶粒 > 沸石，即当人工湿地进水的DBP浓度变化较大时，土壤可以很好地维持出水水质，土壤很适合作为处理含DBP废水的人工湿地基质。DBP浓度为600 μg·L-1时，双常数模型能很好地拟合3种基质对DBP的吸附动力学特征。
    Abstract: The characteristics of dibutyl phthalate (DBP)adsorption on three substances were studied by adsorption kinetics and isothermal adsorption experiments to provide a theoretical foundation for the treatment of DBP-containing wastewater by constructed wetlands. The results showed that for DBP concentrations of 30 to 1 000 μg·L-1,the Freundlich model was better than the Langmuir model for simulate DBP adsorption on these substrates. The theoretical saturated adsorption capacities of DBP were ranked as soil (0.065 5 mg·g-1) > zeolite (0.016 4 mg·g-1) > ceramic (0.013 7 mg·g-1). The buffering capacities of DBP were ranked as soil > ceramic > zeolite. Soil is the most effective adsorbent for sustaining the effluent quality when the influent DBP concentration varies greatly;thus,it is the most suitable for constructed wetland treatment of DBP-containing wastewater. When the DBP concentration was 600 μg·L-1,the kinetics of DBP adsorption on the constructed wetland substrates were well fitted by the double-constant model.
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出版历程
  • 收稿日期:  2016-03-31
  • 刊出日期:  2017-03-10

3种人工湿地基质对邻苯二甲酸二丁酯的吸附特性

  • 1. 北京化工大学化学工程学院, 北京市水处理环保材料工程技术研究中心, 北京 100029
  • 收稿日期:  2016-03-31
基金项目:

北京市科技计划项目（Z15111000210000）

国家自然科学基金资助项目（51408020）

中央高校基本科研业务费（JD1503）

摘要: 通过湿地基质对邻苯二甲酸二丁酯（DBP）的吸附动力学和等温吸附实验，对比天然土壤、沸石、陶粒对DBP的吸附特性，作为人工湿地处理含DBP废水的理论依据。结果表明，DBP浓度在30~1 000 μg·L-1时，Freundlich比Langmuir模型更好地模拟出各湿地基质对DBP的吸附特征。3种基质对DBP的饱和吸附量大小：土壤（0.065 5 mg·g-1）> 沸石（0.016 4 mg·g-1）> 陶粒（0.013 7 mg·g-1）。3种基质对DBP的缓冲能力大小依次为土壤 > 陶粒 > 沸石，即当人工湿地进水的DBP浓度变化较大时，土壤可以很好地维持出水水质，土壤很适合作为处理含DBP废水的人工湿地基质。DBP浓度为600 μg·L-1时，双常数模型能很好地拟合3种基质对DBP的吸附动力学特征。

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