基于MFF30的海绵措施规模优化  

Optimization of sponge facility scale based on MFF30

作　　者：丁录 李翠梅[1] DING Lu;LI Cuimei(School of Environmental Science and Engineering,SUST,Suzhou 215009,China)

机构地区：[1]苏州科技大学环境科学与工程学院,江苏苏州215009

出　　处：《苏州科技大学学报（工程技术版）》2020年第3期34-38,共5页Journal of Suzhou University of Science and Technology（Engineering and Technology Edition）

基　　金：国家自然科学基金项目(51109153)。

摘　　要：为研究不同海绵措施的最优规模,通过计算MFF30值,定量识别不同规模的三种海绵措施对于初期雨水径流冲刷效应的缓解效果。以宣城市某小区为例,构建SWMM模型,并设计不同规模绿色屋顶、渗透性铺装和生物滞留池,模拟在四种不同重现期下的水文和水质输出,以SS和COD去除率为指标,计算MFF30值。结果表明,盲目增大海绵措施规模可能会增强初期雨水径流冲刷效应;结合经济效益和环境效益,三种海绵措施最优规模分别为9.53%~11.91%、11.73%~14.66%、13.35%,此时,对应的MFF30值在1.0~1.6之间;布设规模相同时,生物滞留池的效果好于绿色屋顶和渗透性铺装。In order to study the optimal scale of different sponge facilities,the mitigation effect of the three types of sponge facilities of different scales on the first flush effect was quantitatively identified by calculating the MFF30 value.By using a community in Xuancheng as an example,a SWMM model was constructed,and green roofs,permeable pavement and bioretention ponds of different scales were designed,the hydrological and water quality output under four different rainfall recurrence periods were simulated,and the MFF30 value was calculated using the SS and COD removal rates as indicators.The results show that the blind increase of the scale of the sponge facility may enhance the first flush effect.When the economic and environmental benefits are both considered,the optimal scale of the three sponge facilities are 9.53%~11.91%,11.73%~14.66%,and 13.35%.At this time,the corresponding MFF30 value is between 1.0~1.6.Additionally,when the scale of the sponge facility is the same,the effect of the biological retention pond is better than that of the green roof and the permeable pavement.Therefore,the biological retention ponds are recommended.

关 键 词：海绵城市 初期冲刷效应 SWMM 规模优化 MFF30 

分 类 号：X522[环境科学与工程—环境工程]