不同LID设施的面积比例优选及径流污染控制效果
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X52

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国家重点研发计划(2018YFC1508206);国家自然科学基金(51579002);中国长江三峡集团有限公司科研项目(202003251)


Area proportion optimization of different LID facilities and effect of runoff pollution control
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    摘要:

    为探究低影响开发(LID)设施对缓解城市洪涝灾害以及削减污染物负荷的效果,以淮南市某老旧小区为研究对象,基于SWMM模型构建了暴雨径流管理模型,分析了单项LID设施不同面积占比时的总成本效益,针对4种LID设施组合方案,模拟了不同设计降雨重现期的地表径流、排放口流量及污染负荷。结果表明:对于单项LID设施,占屋顶总面积45%的绿色屋顶、占不透水道路面积60%的渗透铺装和占绿地总面积10%的生物滞留设施总成本效益最高;不同LID设施组合均有较好的雨洪控制效果及污染物削减效果,但随着降雨量的增大,效果均有所减小。

    Abstract:

    To investigate the effect of low impact development (LID) facilities on alleviating urban flood disaster and reducing pollutant load, taking an old district of Huainan City as the research object, this paper constructed the rainstorm runoff management model based on SWMM model, analyzed the cost-effectiveness of different area proportions of individual LID facility, and then simulated the surface runoff, discharge and pollution load of the four LID facility combination plans at different design rainfall return periods. The results show that green roof accounting for 45% of the total roof area, permeable pavement accounting for 60% of the total impervious road area and biological retention facility accounting for 10% of the total green area are the most cost-effective for individual LID facility. Different LID facility combinations have good effects on storm flood control and pollutant reduction, while the effects decrease with rainfall increasing.

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戎贵文,甘丹妮,李姗姗,等.不同LID设施的面积比例优选及径流污染控制效果[J].水资源保护,2022,38(3):168-173.(RONG Guiwen, GAN Danni, LI Shanshan, et al. Area proportion optimization of different LID facilities and effect of runoff pollution control[J]. Water Resources Protection,2022,38(3):168-173.(in Chinese))

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  • 在线发布日期: 2022-05-20
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