基于SWMM模型的截流倍数环境效应分析  

Environmental Effect Analysis of Interception Ratio Based on SWMM Model

作　　者：林雪君 杜遂 戴立峰 洪月菊 谌兴鑫 周俊 LIN Xue-jun;DU Sui;DAI Li-feng;HONG Yue-ju;CHEN Xing-xin;ZHOU Jun(Wuhan Planning&Design Institute,Wuhan 430014,China;Wuhan China Star Optoelectronics Technology Co.Ltd.,Wuhan 430000,China;School of Civil Engineering&Architecture,Wuhan University of Technology,Wuhan 430070,China;School of Municipal and Mapping Engineering,Hunan City University,Yiyang 413000,China)

机构地区：[1]武汉市规划研究院,湖北武汉430014 [2]武汉华星光电技术有限公司,湖北武汉430000 [3]武汉理工大学土木工程与建筑学院,湖北武汉430070 [4]湖南城市学院市政与测绘工程学院,湖南益阳413000

出　　处：《中国给水排水》2021年第5期111-115,共5页China Water & Wastewater

摘　　要：由于对改造建设的重视程度、时序安排、经济条件、改造难度等许多主观和客观因素的限制,许多城市老城区的合流制排水系统保留至今。采用SWMM水力水质模型,对城市合流区的污染物削减情况进行模拟评价,以期为合流制排水系统的截流倍数取值及建设方向提供参考。结果表明,当截流倍数n≥2时,合流制排水系统即可达到分流制排水系统的污染物截流效果;但只有当截流倍数n≥5时,合流制排水系统才能达到分流制排水系统的污染物削减效果。城市合流区需尽快进行合改分建设,或加大末端处理设施的建设。Due to the limitation of subjective and objective factors,such as the importance of reconstruction,time sequence,economic condition and reconstruction difficulties,etc,the combined sewer system in many old urban districts has been preserved till now.In this study,SWMM model was used to simulate and evaluate pollutants reduction in urban combined sewer area,which aimed to provide reference for interception ratio and construction direction of combined sewer system.When the interception ratio was no less than 2,the combined sewer system could achieve the pollutants interception performance equal to that of the separate sewer system.However,the combined sewer system achieved the pollutants reduction performance equal to that of the separate sewer system only when the interception ratio was no less than 5.In urban combined sewer area,it is necessary to transform the combined sewer system into separate sewer system as soon as possible,or increase the construction of terminal treatment facilities.

关 键 词：合流制排水系统 截流倍数 污染物削减 SWMM 

分 类 号：TU992[建筑科学—市政工程]