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许玉东, 范良鑫, 黄友福. Fenton法处理垃圾渗滤液MBR-NF浓缩液[J]. 环境工程学报, 2014, 8(9): 3711-3717.
引用本文: 许玉东, 范良鑫, 黄友福. Fenton法处理垃圾渗滤液MBR-NF浓缩液[J]. 环境工程学报, 2014, 8(9): 3711-3717.
shu
Xu Yudong, Fan Liangxin, Huang Youfu. Treatment of MBR-NF concentrate of landfill leachate by Fenton process[J]. Chinese Journal of Environmental Engineering, 2014, 8(9): 3711-3717.
Citation: Xu Yudong, Fan Liangxin, Huang Youfu. Treatment of MBR-NF concentrate of landfill leachate by Fenton process[J]. Chinese Journal of Environmental Engineering, 2014, 8(9): 3711-3717.
shu

Fenton法处理垃圾渗滤液MBR-NF浓缩液

  • 1.

    福州大学环境与资源学院, 福州 350108

  • 基金项目:

    福建省科技计划重点项目（2009H0024）

    福建省自然科学基金项目（2012J01205）

  • 中图分类号: X705

Treatment of MBR-NF concentrate of landfill leachate by Fenton process

  • 1.

    College of Environment and Resources, Fuzhou University, Fuzhou 350108, China

  • Fund Project:

  • 摘要: 采用Fenton法处理MBR-NF浓缩液，考察了FeSO4·7H2O投加量、n（H2O2）/n（Fe2+）投加比、初始pH对渗滤液MBR-NF浓缩液处理效果的影响，并在最佳实验条件下，探讨浓缩液富里酸（FA）、亲水性有机物（HyI）组分在Fenton氧化前后组成的变化。研究结果表明，在FeSO4·7H2O投加量为0.055 mol/L、n（H2O2）/n（Fe2+）投加比为4、初始pH为7.58时，对COD、腐植酸（UV254）、色度（CN）的去除率分别为79.6%、93.7%和97.8%。Fenton氧化后，浓缩液中有机物组分含量发生了较大变化，腐植酸含量下降，HyI成为渗滤液溶解性有机物主要成分。紫外-可见光谱表明，Fenton法对FA去除效果较好，而对HyI氧化效果较差；傅立叶红外光谱显示，经Fenton氧化后，FA的结构发生了明显变化，而HyI则变化不明显。
    Abstract: The laboratory-scale experiments were conducted to investigate treatment performance of MBR-NF concentrate of landfill leachate by Fenton process. The affecting factors of dosage of FeSO4·7H2O, H2O2/ Fe2+ ratio (molar basis) and initial pH value on removal efficency were optimised. Meanwhile, the changes of compositions of fulvic acid (FA) and hydrophilic organic matter (HyI) fractions in the concentrate during Fenton process were discussed under the optimal conditions. The results showed that the optimal operating conditions were as follows: FeSO4·7H2O dosage of 0.055 mol/L, n(H2O2)/n(Fe2+) ratio of 4 and initial pH of 7.58. Under these conditions, the removal efficencies of COD, UV254, and CN reached 79.6%, 93.7% and 97.8%, respectively. During Fenton process, the organic composition of the concentrate varied significantly. The content of humic substances (HS) decreased, and the HyI fraction shifted the dominating composition of dissolved organic matter. The UV spectra demonstrated that Fenton oxidation had a high removal efficency for FA,while less effective for HyI. Fourier-transform infrared spectra exhibited the significant changes of FA structure, while few in HyI.
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出版历程
  • 收稿日期:  2013-10-13
  • 刊出日期:  2014-09-04
许玉东, 范良鑫, 黄友福. Fenton法处理垃圾渗滤液MBR-NF浓缩液[J]. 环境工程学报, 2014, 8(9): 3711-3717.
引用本文: 许玉东, 范良鑫, 黄友福. Fenton法处理垃圾渗滤液MBR-NF浓缩液[J]. 环境工程学报, 2014, 8(9): 3711-3717.
shu
Xu Yudong, Fan Liangxin, Huang Youfu. Treatment of MBR-NF concentrate of landfill leachate by Fenton process[J]. Chinese Journal of Environmental Engineering, 2014, 8(9): 3711-3717.
Citation: Xu Yudong, Fan Liangxin, Huang Youfu. Treatment of MBR-NF concentrate of landfill leachate by Fenton process[J]. Chinese Journal of Environmental Engineering, 2014, 8(9): 3711-3717.
shu

Fenton法处理垃圾渗滤液MBR-NF浓缩液

  • 1. 福州大学环境与资源学院, 福州 350108
  • 收稿日期:  2013-10-13
基金项目:

福建省科技计划重点项目（2009H0024）

福建省自然科学基金项目（2012J01205）

摘要: 采用Fenton法处理MBR-NF浓缩液，考察了FeSO4·7H2O投加量、n（H2O2）/n（Fe2+）投加比、初始pH对渗滤液MBR-NF浓缩液处理效果的影响，并在最佳实验条件下，探讨浓缩液富里酸（FA）、亲水性有机物（HyI）组分在Fenton氧化前后组成的变化。研究结果表明，在FeSO4·7H2O投加量为0.055 mol/L、n（H2O2）/n（Fe2+）投加比为4、初始pH为7.58时，对COD、腐植酸（UV254）、色度（CN）的去除率分别为79.6%、93.7%和97.8%。Fenton氧化后，浓缩液中有机物组分含量发生了较大变化，腐植酸含量下降，HyI成为渗滤液溶解性有机物主要成分。紫外-可见光谱表明，Fenton法对FA去除效果较好，而对HyI氧化效果较差；傅立叶红外光谱显示，经Fenton氧化后，FA的结构发生了明显变化，而HyI则变化不明显。

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