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黏土与粉煤灰吸附农村生活垃圾渗滤液的效能及机理

吴海霞 吴小卉 孟棒棒 岳波 禾海伶 高红

吴海霞, 吴小卉, 孟棒棒, 岳波, 禾海伶, 高红. 黏土与粉煤灰吸附农村生活垃圾渗滤液的效能及机理[J]. 环境工程技术学报, 2019, 9(5): 587-596. doi: 10.12153/j.issn.1674-991X.2019.05.140
引用本文: 吴海霞, 吴小卉, 孟棒棒, 岳波, 禾海伶, 高红. 黏土与粉煤灰吸附农村生活垃圾渗滤液的效能及机理[J]. 环境工程技术学报, 2019, 9(5): 587-596. doi: 10.12153/j.issn.1674-991X.2019.05.140
WU Haixia, WU Xiaohui, MENG Bangbang, YUE Bo, HE Hailing, GAO Hong. Research on adsorption efficiency and mechanism of clay and coal fly ash for rural domestic waste leachate[J]. Journal of Environmental Engineering Technology, 2019, 9(5): 587-596. doi: 10.12153/j.issn.1674-991X.2019.05.140
Citation: WU Haixia, WU Xiaohui, MENG Bangbang, YUE Bo, HE Hailing, GAO Hong. Research on adsorption efficiency and mechanism of clay and coal fly ash for rural domestic waste leachate[J]. Journal of Environmental Engineering Technology, 2019, 9(5): 587-596. doi: 10.12153/j.issn.1674-991X.2019.05.140

黏土与粉煤灰吸附农村生活垃圾渗滤液的效能及机理

doi: 10.12153/j.issn.1674-991X.2019.05.140
详细信息
    作者简介:

    吴海霞(1994—),女,硕士研究生,研究方向为固体废物资源化利用, 1184512101@qq.com

    通讯作者:

    岳波 E-mail: yuebo@craes.org.cn

  • 中图分类号: X705

Research on adsorption efficiency and mechanism of clay and coal fly ash for rural domestic waste leachate

More Information
    Corresponding author: Bo YUE E-mail: yuebo@craes.org.cn
  • 摘要: 分别以黏土和粉煤灰作为吸附剂,研究单一材料下吸附时间、吸附剂投加量和渗滤液初始pH对农村生活垃圾渗滤液吸附效能的影响及吸附机理。综合考虑去除效果、运行成本及可操作性,选择吸附时间为180 min、吸附剂投加量为50 g/L、渗滤液初始pH为自然值(7.5~8.0)作为实际运行工况。结果表明:黏土对农村生活垃圾渗滤液中化学需氧量(CODCr)、氨氮(NH3-N)、总氮(TN)、总磷(TP)的去除率分别为25.58%、14.87%、41.63%和62.25%,粉煤灰为33.01%、18.18%、22.07%和60.46%;黏土对重金属Cr、As、Cd、Ni和Pb的去除率分别为13.04%、43.34%、60.24%、47.52%和61.77%,粉煤灰为10.53%、31.52%、84.30%、65.73%和68.65%。黏土和粉煤灰对渗滤液中污染物的等温吸附较符合Freundlich模型,化学吸附在多种吸附作用中占主导作用。

     

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  • 收稿日期:  2018-12-20
  • 刊出日期:  2019-09-20

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