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改性凹凸棒石对模拟含酚废水处理机制的研究

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包军杰, 余贵芬, 蒋新, 彭伟. 改性凹凸棒石对模拟含酚废水处理机制的研究[J]. 环境化学, 2006, 25(1): 37-40.
引用本文: 包军杰, 余贵芬, 蒋新, 彭伟. 改性凹凸棒石对模拟含酚废水处理机制的研究[J]. 环境化学, 2006, 25(1): 37-40.
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BAO Jun-jie, YU Gui-fen, JIANG Xin, PENG Wei. REMOVAL MECHANISMS OF PHENOL FROM WASTEWATER BY MODIFIED ATTAPULGITE[J]. Environmental Chemistry, 2006, 25(1): 37-40.
Citation: BAO Jun-jie, YU Gui-fen, JIANG Xin, PENG Wei. REMOVAL MECHANISMS OF PHENOL FROM WASTEWATER BY MODIFIED ATTAPULGITE[J]. Environmental Chemistry, 2006, 25(1): 37-40.
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改性凹凸棒石对模拟含酚废水处理机制的研究

  • 1.

    安徽农业大学资源与环境学院, 合肥, 210036;

  • 2.

    中国科学院南京土壤研究所, 南京, 210008;

  • 3.

    安徽省马鞍山市环境保护局, 马鞍山, 243011

  • 基金项目:

    国家自然科学基金(40201025)和瑞典国际科学基金(IFSC/3403-1)资助项目.

REMOVAL MECHANISMS OF PHENOL FROM WASTEWATER BY MODIFIED ATTAPULGITE

  • 1.

    College of Resources and Environment, Anhui Angricultural University, Hefei, 230036, China;

  • 2.

    Insititute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China;

  • 3.

    Environmental Protection Agency of Ma-anshan, Ma-anshan, 243011, China

  • Fund Project:

  • 摘要: 利用有机阳离子表面活性剂对凹凸棒石表面进行改性,研究改性凹凸棒石吸附去除模拟含酚水中苯酚的机理,同时对影响吸附去除苯酚的因素进行探讨.结果表明,用十六烷基三甲基溴化铵(HDTMA)和溴代十六烷基吡啶(CPB)等有机阳离子对天然凹凸棒石进行改性后能大大提高对苯酚的吸附去除率;HDTMA和CPB改性土对苯酚的吸附机制主要是其有机相对苯酚的分配作用;HDTMA和CPB改性土对苯酚的吸附等温线呈线性,L型吸附等温方程更适合该吸附过程.在pH>10时,HDTMA改性土除通过分配作用以外还可通过静电吸附增强对苯酚的吸附;随着HDTMA改性剂用量的增加,HDTMA改性土对苯酚的吸附去除率也逐渐增加并达到最大值.
    Abstract: Cation surfactants——modified attapulgites were prepared and the removal mechanism of phenol from wastewater by these modified attapulgites wasinvestigated in present study. Results showed that the removal efficiency of phenol from wastewater with HDTMA- and CPB-modified attapulgite were greatly improved. The linear isotherm showed that partition mechanism accounted for the removal of phenol from wastewater by HDTMA- and CPB-modified attapulgite. The sorption isotherm of phenol was better fit for Langmuir isotherms equation than the Henry's and Freundlich's isotherms. The removal of phenol increase with the increase of the amount of HDTMA used in modified attapulgite.The higher the pH was, the more phenol was removed.
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  • [1] 裘祖楠,翁性尚,李勇等,活化凹凸棒石对阳离子染料的脱色作用及其应用研究.中国环境科学,1997,17(4):373-376
    [2] 陈天虎,改性凹凸棒石粘土吸附性能对比实验研究.工业水处理.2000,20(4):27-29
    [3] 彭书传,魏凤玉,周元祥等,有机凹凸棒粘土吸附水中苯酚的试验.城市环境与城市生态,1999,l2(2):14-16
    [4] 惠天凯,裘祖楠,汪学才等,改性凹凸棒土对水溶液中苯的吸附研究.上海环境科学,2000,19(7):317-318


    [5] Jaynes W F,Boyd S A,Clay Mineral Type and Organic Compound Sorption by Hexadecyltrimethylammonium-exchanged Clays.Soil Sci.Soc.Amer.J.1991,55:43-48
    [6] Klumpp E,Contreras-Ortega C,Klahre P et al.,Sorption of 2,4-Dichlorophenol on Modified Hydrotalcites.Colloids and Surfaces A:Physicochem.Eng.Aspects,2004,230:111-116
    [7] Chiou C T,McGroddy S E,Kile D E,Partition Characteristics of Polycyclic Aromatic Hydrocarbons on Soils and Sediments.Environ.Sci.Technol.,1998,32(2):264-269

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改性凹凸棒石对模拟含酚废水处理机制的研究

  • 1.  安徽农业大学资源与环境学院, 合肥, 210036;
  • 2.  中国科学院南京土壤研究所, 南京, 210008;
  • 3.  安徽省马鞍山市环境保护局, 马鞍山, 243011
基金项目:

国家自然科学基金(40201025)和瑞典国际科学基金(IFSC/3403-1)资助项目.

摘要: 利用有机阳离子表面活性剂对凹凸棒石表面进行改性,研究改性凹凸棒石吸附去除模拟含酚水中苯酚的机理,同时对影响吸附去除苯酚的因素进行探讨.结果表明,用十六烷基三甲基溴化铵(HDTMA)和溴代十六烷基吡啶(CPB)等有机阳离子对天然凹凸棒石进行改性后能大大提高对苯酚的吸附去除率;HDTMA和CPB改性土对苯酚的吸附机制主要是其有机相对苯酚的分配作用;HDTMA和CPB改性土对苯酚的吸附等温线呈线性,L型吸附等温方程更适合该吸附过程.在pH>10时,HDTMA改性土除通过分配作用以外还可通过静电吸附增强对苯酚的吸附;随着HDTMA改性剂用量的增加,HDTMA改性土对苯酚的吸附去除率也逐渐增加并达到最大值.

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