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Fe0/GAC-Fenton耦合技术深度处理垃圾渗滤液的效能

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郑俊, 张德伟, 贺倩倩, 冯晓明, 沈亚锋, 黄河清. Fe0/GAC-Fenton耦合技术深度处理垃圾渗滤液的效能[J]. 环境工程学报, 2016, 10(5): 2427-2434. doi: 10.12030/j.cjee.201412219
引用本文: 郑俊, 张德伟, 贺倩倩, 冯晓明, 沈亚锋, 黄河清. Fe0/GAC-Fenton耦合技术深度处理垃圾渗滤液的效能[J]. 环境工程学报, 2016, 10(5): 2427-2434. doi: 10.12030/j.cjee.201412219
shu
Zheng Jun, Zhang Dewei, He Qianqian, Feng Xiaoming, Shen Yafeng, Huang Heqing. Performance of advanced treatment of landfill leachate by Fe0/GAC coupling with Fenton[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2427-2434. doi: 10.12030/j.cjee.201412219
Citation: Zheng Jun, Zhang Dewei, He Qianqian, Feng Xiaoming, Shen Yafeng, Huang Heqing. Performance of advanced treatment of landfill leachate by Fe0/GAC coupling with Fenton[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2427-2434. doi: 10.12030/j.cjee.201412219
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Fe0/GAC-Fenton耦合技术深度处理垃圾渗滤液的效能

  • 1.

    安徽工业大学建筑工程学院, 马鞍山 243002

  • 2.

    安徽华骐环保科技股份有限公司, 马鞍山 243061

  • 3.

    安徽省曝气生物滤池工程技术研究中心, 马鞍山 243061

  • 基金项目:

    安徽省科技攻关计划项目(1301041023)

  • 中图分类号: X703

Performance of advanced treatment of landfill leachate by Fe0/GAC coupling with Fenton

  • 1.

    School of Civil Engineering and Architecture, Anhui University of Technology, Maanshan 243002, China

  • 2.

    Huaqi Environment Protection Science and Technology Development Co. Ltd., Maanshan 243061, China

  • 3.

    Biological Aerated Filter Engineering Technology Research Center of Anhui Province, Maanshan 243061, China

  • Fund Project:

  • 摘要: 采用Fe0/GAC与H2O2构建微电解与Fenton异相协同降解体系,通过自行开发设计的新型反应器研究各因素对Fe0/GAC-Fenton耦合技术深度处理垃圾渗滤液效能的影响,应用紫外光谱探讨垃圾渗滤液中污染物的降解规律。结果表明,Fe0/GAC-Fenton耦合技术处理废水具有较好的协同降解作用,相对于传统技术可以明显提高废水的处理效能。各因素对COD去除效果的影响从大到小为:Fe0用量 >HRT>mFe0/mGAC >c(H2O2) >pH。通过单因素优化实验确定其最优反应条件:pH=3.5、mFe0=143 g/L、mFe0/mGAC为3:1、HRT为80 min、30%H2O2为1.5 mL/L;该条件下COD由209 mg/L降低到53 mg/L,去除率达74.6%,出水水质达到《生活垃圾填埋污染控制标准》(GB 16889-2008)一级排放标准。紫外光谱显示,经该耦合技术深度处理后,废水中包含共轭双键、—NH—和苯环等结构的大分子有机物被降解。
    Abstract: The collaborative system of heterogeneous micro-electrolysis and the Fenton process was established with granular activated carbon (Fe0/GAC) and hydrogen peroxide (H2O2) to degrade landfill leachate. The influencing factors and treatment efficiency were investigated for the degradation of landfill leachate using the novel coupling and self-designed reactor of Fe0/GAC with Fenton. The degradation mechanism of pollutants was also analyzed by UV spectrum. The results showed that compared with traditional technologies, the treatment efficiency of wastewater was clearly improved by the synergetic effects resulting from the combined process of Fe0/GAC and Fenton. The influence strength on the chemical oxygen demand (COD) removal rate was Fe0 quantity > hydraulic retention time > mFe0/mGAC > H2O2 quantity > pH. The optimal combination determined by a single factor test for the reactor was as follows: Fe0 =143 g/L, mFe0/mGAC=3:1, 30% H2O2 1.5 mL/L, and HRT 80 min. With this optimal combination, the COD concentration was reduced from 209 mg/L to 53 mg/L with a removal efficiency of 74%, which could meet Grade I National Emission Standards (GB 16889-2008) in China. UV spectrum analysis suggested that the structure of macromolecular organic compounds with conjugated double bonds, amino groups, and benzene rings, etc., was degraded in the leachate.
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  • 收稿日期:  2015-01-12
  • 刊出日期:  2016-06-03

Fe0/GAC-Fenton耦合技术深度处理垃圾渗滤液的效能

  • 1.  安徽工业大学建筑工程学院, 马鞍山 243002
  • 2.  安徽华骐环保科技股份有限公司, 马鞍山 243061
  • 3.  安徽省曝气生物滤池工程技术研究中心, 马鞍山 243061
  • 收稿日期:  2015-01-12
基金项目:

安徽省科技攻关计划项目(1301041023)

摘要: 采用Fe0/GAC与H2O2构建微电解与Fenton异相协同降解体系,通过自行开发设计的新型反应器研究各因素对Fe0/GAC-Fenton耦合技术深度处理垃圾渗滤液效能的影响,应用紫外光谱探讨垃圾渗滤液中污染物的降解规律。结果表明,Fe0/GAC-Fenton耦合技术处理废水具有较好的协同降解作用,相对于传统技术可以明显提高废水的处理效能。各因素对COD去除效果的影响从大到小为:Fe0用量 >HRT>mFe0/mGAC >c(H2O2) >pH。通过单因素优化实验确定其最优反应条件:pH=3.5、mFe0=143 g/L、mFe0/mGAC为3:1、HRT为80 min、30%H2O2为1.5 mL/L;该条件下COD由209 mg/L降低到53 mg/L,去除率达74.6%,出水水质达到《生活垃圾填埋污染控制标准》(GB 16889-2008)一级排放标准。紫外光谱显示,经该耦合技术深度处理后,废水中包含共轭双键、—NH—和苯环等结构的大分子有机物被降解。

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