上海典型合流制排水系统溢流污染控制策略  

Coutermeasures of Overflow Pollution Control for Typical Combined Drainage System in Shanghai

作　　者：牟晋铭 耿晓洒 MU Jinming;GENG Xiaosa(Shanghai Urban Construction Engineering Consulting Co.,Ltd.,Shanghai 200215,China;Shanghai Urban Construction Design and Research InstituteCo.,Ltd.,Shanghai 200215,China)

机构地区：[1]上海城建工程咨询有限公司,上海200125 [2]上海市城市建设设计研究总院<集团>有限公司,上海200125

出　　处：《净水技术》2024年第10期154-159,共6页Water Purification Technology

摘　　要：现阶段合流制排水系统广泛存在于我国各大中城市,合流制排水系统的溢流污染是导致城市水体环境污染的主要原因。以上海市典型合流制排水系统为研究对象,结合资料调研及相关运行数据分析合流制溢流污染的主要影响因素,构建典型合流排水系统模型分析增设合流制溢流污染调蓄池,可有效削减合流制溢流污染。结合排水系统模型就初雨调蓄标准、雨水径流控制率及溢流污染次数等指标进行分析,当截流标准为11 mm,调蓄池容积为37 950 m^(3),年径流总量控制率为70.84%,泵站放江频次由27次降低为19次。对于城市合流制排水系统应结合当地降雨条件及受纳水体环境容量利用排水系统模型分析,将初雨截流标准、最小溢流降雨量作为截流式合流制排水系统改造控制参数。At present,the combined drainage system widely exists in various large and medium-sized cities in China.The overflow pollution of the combined drainage system is the main cause of urban water environment pollution.Taking the typical combined drainage system in Shanghai as the research object,combined with the data investigation and relevant operation data,the main influencing factors of combined overflow pollution were analyzed,and the model of typical combined drainage system was constructed to analyze that the addition of initial rain storage tank can effectively reduce the combined overflow pollution.Based on the drainage system model,the indices such as initial rain regulation and storage standard,rainwater runoff control rate and the overflow pollution times were analyzed.When the closure standard was 11 mm,the volume of the regulation and storage tank was 37950 m^(3),the annual rainwater runoff control rate was 70.84%,and the discharge frequency of the pump station was reduced from 27 to 19.For the urban combined drainage system,the local rainfall conditions and the environmental capacity of the receiving water body should be combined with the analysis of the drainage system model,and the initial rainfall interception standard and the minimum overflow rainfall shall be taken as the control parameters for the reconstruction of the intercepted combined drainage system.

关 键 词：合流制排水系统 溢流污染 调蓄池 水力模型 径流污染 

分 类 号：TU992[建筑科学—市政工程]