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盐度对人工渗滤系统中煤渣和陶粒除磷过程的影响

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薛倩, 刘月敏, 崖婷婷, 孙力平, 杜金山, 胡鑫. 盐度对人工渗滤系统中煤渣和陶粒除磷过程的影响[J]. 环境工程学报, 2015, 9(10): 4705-4710. doi: 10.12030/j.cjee.20151014
引用本文: 薛倩, 刘月敏, 崖婷婷, 孙力平, 杜金山, 胡鑫. 盐度对人工渗滤系统中煤渣和陶粒除磷过程的影响[J]. 环境工程学报, 2015, 9(10): 4705-4710. doi: 10.12030/j.cjee.20151014
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Xue Qian, Liu Yuemin, Ya Tingting, Sun Liping, Du Jinshan, Hu Xin. Effect of salinity on phosphorus removal by coal cinder and ceramsite in artificial infiltration system[J]. Chinese Journal of Environmental Engineering, 2015, 9(10): 4705-4710. doi: 10.12030/j.cjee.20151014
Citation: Xue Qian, Liu Yuemin, Ya Tingting, Sun Liping, Du Jinshan, Hu Xin. Effect of salinity on phosphorus removal by coal cinder and ceramsite in artificial infiltration system[J]. Chinese Journal of Environmental Engineering, 2015, 9(10): 4705-4710. doi: 10.12030/j.cjee.20151014
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盐度对人工渗滤系统中煤渣和陶粒除磷过程的影响

  • 1.

    天津城建大学环境与市政工程学院, 天津 300384

  • 2.

    天津市水质科学与技术重点实验室, 天津 300384

  • 3.

    天津清华德人环境工程有限公司, 天津 300384

  • 4.

    陕西省电力公司信通公司, 陕西 710004

  • 基金项目:

    国家"水体污染控制与治理"科技重大专项(2012ZX0730-8002)

    天津市水质科学与技术重点实验室开放基金资助项目(TJKLAST-2011-16)

  • 中图分类号: X703

Effect of salinity on phosphorus removal by coal cinder and ceramsite in artificial infiltration system

  • 1.

    Department of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China

  • 2.

    Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin 300384, China

  • 3.

    Tianjin Tsinghua Daring Environmental Engineering Co., Ltd, Tianjin 300384, China

  • 4.

    Telecommunication Company of Shanxi Electric Power Corporation 710004, China

  • Fund Project:

  • 摘要: 以煤渣和陶粒作为填料,通过静态吸附实验对二者的磷吸附动力学和等温吸附过程进行模型拟合,并考察了不同盐度对人工渗滤系统吸附除磷的影响。静态吸附实验结果表明,零盐度下,Elovich模型和双常数模型可较好拟合煤渣吸附除磷过程,而陶粒更符合一级动力学模型,二者吸附机理取决于填料的理化性质;不同盐度下,二者等温吸附过程 Langmuir 方程的拟合效果要好于Freundlich方程;盐度增大总体呈现对磷吸附的抑制作用,但由于盐度增加导致溶液中阴离子与磷酸根离子激烈竞争填料表面吸附位点,二者的吸附量均在1%和1.5% 盐度之间出现反复。人工渗滤系统连续实验结果表明,系统整体受盐度影响趋势与静态吸附实验结果基本一致。
    Abstract: The performance of coal cinder and ceramsite as infiltration system substrates for phosphorus removal was studied at different levels of salinity,as well as the kinetics and isotherms of phosphate adsorption process.When the salinity was 0%,Elovich model and two-constant model can be used to describe the phosphorus adsorption process of cinder,while first order dynamics equation was the best model to describe the phosphorus adsorption process of ceramsite,the adsorption mechanism depends on the physical and chemical properties of the substrates.At different salinities,compared with Freundlich equation,the Langmuir equation was more suitable for describing the isothermal adsorption characteristics of both substrates.Since the increased salinity making other negative ions compete with the phosphate ion for adsorption sites in the surface of filler,increasing salinity inhibited the adsorption of phosphorus in general,but the adsorption capacity of the substrates fluctuated between 1% and 1.5% salinity.The results of the continuous artificial filtration system showed that the influence of salinity on phosphorus adsorption in the filtration system was similar as the batch experiments.
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出版历程
  • 收稿日期:  2014-09-21
  • 刊出日期:  2015-10-14

盐度对人工渗滤系统中煤渣和陶粒除磷过程的影响

  • 1.  天津城建大学环境与市政工程学院, 天津 300384
  • 2.  天津市水质科学与技术重点实验室, 天津 300384
  • 3.  天津清华德人环境工程有限公司, 天津 300384
  • 4.  陕西省电力公司信通公司, 陕西 710004
  • 收稿日期:  2014-09-21
基金项目:

国家"水体污染控制与治理"科技重大专项(2012ZX0730-8002)

天津市水质科学与技术重点实验室开放基金资助项目(TJKLAST-2011-16)

摘要: 以煤渣和陶粒作为填料,通过静态吸附实验对二者的磷吸附动力学和等温吸附过程进行模型拟合,并考察了不同盐度对人工渗滤系统吸附除磷的影响。静态吸附实验结果表明,零盐度下,Elovich模型和双常数模型可较好拟合煤渣吸附除磷过程,而陶粒更符合一级动力学模型,二者吸附机理取决于填料的理化性质;不同盐度下,二者等温吸附过程 Langmuir 方程的拟合效果要好于Freundlich方程;盐度增大总体呈现对磷吸附的抑制作用,但由于盐度增加导致溶液中阴离子与磷酸根离子激烈竞争填料表面吸附位点,二者的吸附量均在1%和1.5% 盐度之间出现反复。人工渗滤系统连续实验结果表明,系统整体受盐度影响趋势与静态吸附实验结果基本一致。

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