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改性污泥活性炭对苯乙烯的吸附

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任爱玲, 符凤英, 曲一凡, 张静, 郭斌. 改性污泥活性炭对苯乙烯的吸附[J]. 环境化学, 2013, 32(5): 833-838. doi: 10.7524/j.issn.0254-6108.2013.05.016
引用本文: 任爱玲, 符凤英, 曲一凡, 张静, 郭斌. 改性污泥活性炭对苯乙烯的吸附[J]. 环境化学, 2013, 32(5): 833-838. doi: 10.7524/j.issn.0254-6108.2013.05.016
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REN Ailing, FU Fengying, QU Yifan, ZHANG Jing, GUO Bin. Adsorption properties of modified activated sludge carbon to styrene[J]. Environmental Chemistry, 2013, 32(5): 833-838. doi: 10.7524/j.issn.0254-6108.2013.05.016
Citation: REN Ailing, FU Fengying, QU Yifan, ZHANG Jing, GUO Bin. Adsorption properties of modified activated sludge carbon to styrene[J]. Environmental Chemistry, 2013, 32(5): 833-838. doi: 10.7524/j.issn.0254-6108.2013.05.016
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改性污泥活性炭对苯乙烯的吸附

  • 1.

    河北科技大学环境科学与工程学院, 石家庄, 050018

  • 基金项目:

    国家环保公益基金资助项目(201109004)资助.

Adsorption properties of modified activated sludge carbon to styrene

  • 1.

    Hebei University of Science and Technology, Shijiazhuang, 050018, China

  • Fund Project:

  • 摘要: 以城市污泥为原料制备活性炭,对其进行改性,研究了改性前后的比表面积、表面酸碱基团、对苯乙烯的静态吸附容量、吸附穿透曲线、脱附活化能等吸附性能.结果表明,硫酸铜溶液浸渍改性后可使污泥活性炭比表面积明显提高,其中0.1 mol·L-1硫酸铜溶液浸渍改性的污泥活性炭较改性前的比表面积提高了32%(达704.7 m2·g-1).硫酸铝溶液和硫酸铜溶液浸渍改性可以使污泥活性炭表面酸性基团含量提高、表面碱性基团含量减少;对苯乙烯的静态吸附容量提高到改性前的两倍以上(分别达211.4 mg·g-1和178.8 mg·g-1)、对苯乙烯的动态吸附穿透时间由2 min提高到10 min以上、脱附活化能由2.94 kJ·mol-1提高到6 kJ·mol-1以上.改性后活性污泥炭的吸附性能得到明显提高.
    Abstract: The urban sludge as a raw material was used to prepare activated carbon with modification. BET, surface acid-base groups, static adsorption capacity to styrene, adsorption penetration curve, activation energies of desorption were measured before and after modification. The results show that: activated sludge carbon BET is obviously improved after dipping treatment by copper sulfate solution, which increased 32% (up to 704.7 m2穏-1)than before; Dipping in aluminum sulfate and copper sulfate solution can increase activated sludge carbon acidity groups and reduce activated sludge carbon basicity groups on the surface; static adsorption capacity to styrene are more than twice compared to the unmodied(up to 211.4 mg穏-1 and 178.8 mg穏-1). Dynamic adsorption penetration time for styrene increased from 2 min to 10 min. Adsorption properties of activated sludge carbon could be improved obviously after modification.
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  • 收稿日期:  2012-07-19

改性污泥活性炭对苯乙烯的吸附

  • 1. 河北科技大学环境科学与工程学院, 石家庄, 050018
  • 收稿日期:  2012-07-19
基金项目:

国家环保公益基金资助项目(201109004)资助.

摘要: 以城市污泥为原料制备活性炭,对其进行改性,研究了改性前后的比表面积、表面酸碱基团、对苯乙烯的静态吸附容量、吸附穿透曲线、脱附活化能等吸附性能.结果表明,硫酸铜溶液浸渍改性后可使污泥活性炭比表面积明显提高,其中0.1 mol·L-1硫酸铜溶液浸渍改性的污泥活性炭较改性前的比表面积提高了32%(达704.7 m2·g-1).硫酸铝溶液和硫酸铜溶液浸渍改性可以使污泥活性炭表面酸性基团含量提高、表面碱性基团含量减少;对苯乙烯的静态吸附容量提高到改性前的两倍以上(分别达211.4 mg·g-1和178.8 mg·g-1)、对苯乙烯的动态吸附穿透时间由2 min提高到10 min以上、脱附活化能由2.94 kJ·mol-1提高到6 kJ·mol-1以上.改性后活性污泥炭的吸附性能得到明显提高.

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