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城市河道环保疏浚与水利疏浚效果研究——以无锡市梁塘河薛家浜为例

郭赟 黄晓峰 李海妮 邱伟建

郭赟, 黄晓峰, 李海妮, 邱伟建. 城市河道环保疏浚与水利疏浚效果研究——以无锡市梁塘河薛家浜为例[J]. 环境工程技术学报, 2020, 10(3): 400-405. doi: 10.12153/j.issn.1674-991X.20190104
引用本文: 郭赟, 黄晓峰, 李海妮, 邱伟建. 城市河道环保疏浚与水利疏浚效果研究——以无锡市梁塘河薛家浜为例[J]. 环境工程技术学报, 2020, 10(3): 400-405. doi: 10.12153/j.issn.1674-991X.20190104
GUO Yun, HUANG Xiaofeng, LI Haini, QIU Weijian. Study on the effect of urban river environmental dredging and hydraulic dredging:taking Xuejiabang, Liangtang River of Wuxi as an example[J]. Journal of Environmental Engineering Technology, 2020, 10(3): 400-405. doi: 10.12153/j.issn.1674-991X.20190104
Citation: GUO Yun, HUANG Xiaofeng, LI Haini, QIU Weijian. Study on the effect of urban river environmental dredging and hydraulic dredging:taking Xuejiabang, Liangtang River of Wuxi as an example[J]. Journal of Environmental Engineering Technology, 2020, 10(3): 400-405. doi: 10.12153/j.issn.1674-991X.20190104

城市河道环保疏浚与水利疏浚效果研究——以无锡市梁塘河薛家浜为例

doi: 10.12153/j.issn.1674-991X.20190104
详细信息
    作者简介:

    郭赟(1988—),女,工程师,硕士,主要研究方向为环境修复,guoyun007@sina.cn

  • 中图分类号: X524

Study on the effect of urban river environmental dredging and hydraulic dredging:taking Xuejiabang, Liangtang River of Wuxi as an example

  • 摘要: 以内源污染严重的无锡市梁塘河薛家浜为研究区,开展环保疏浚和水利疏浚试验,通过疏浚前后底泥和水体中总氮、总磷浓度变化及底泥中氮、磷的静态释放通量,评估2种疏浚方式对河道内源污染削减效果的影响。结果表明:2种疏浚方式都能有效降低底泥中营养盐浓度,环保疏浚后底泥中总氮、总磷浓度分别削减了46.50%和35.51%,水利疏浚后分别削减了40.10%和30.51%。但达到同样疏浚效果时,相较环保疏浚,水利疏浚的工程量增加;在外源污染得到较好控制的前提下,2种疏浚方式均能有效削减内源释放对水体的污染,其中环保疏浚对氮、磷释放通量削减率较高,分别为46.92%和38.53%,水利疏浚则为40.99%和30.09%;考虑到城区土地资源紧缺,水利疏浚易超挖及疏浚后水生态系统较难恢复的问题,建议采取环保疏浚方式解决城市河道内源污染问题。

     

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出版历程
  • 收稿日期:  2019-06-13
  • 刊出日期:  2020-05-20

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