[1]李文秋,孙永利,张维,等.城市排水管网末端雨洪排口降雨污染特征及治理对策[J].中国给水排水,2023,39(12):32-36.
　LIWen-qiu,SUNYong-li,ZHANGWei,et al.Rainfall Pollution Characteristics of Outlets and Control Countermeasures at the End of Urban Drainage Pipe Network[J].China Water & Wastewater,2023,39(12):32-36.
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城市排水管网末端雨洪排口降雨污染特征及治理对策

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第39卷 期数: 2023年第12期 页码: 32-36 栏目: 出版日期: 2023-06-17
Title:
Rainfall Pollution Characteristics of Outlets and Control Countermeasures at the End of Urban Drainage Pipe Network
作者:
李文秋1,2， 孙永利1,2,3， 张维1,3， 刘静1,2,3， 高晨晨1,3， 李家驹1,2
（1.中国市政工程华北设计研究总院有限公司，天津 300074；2.天津市城市排水系统重点实验室，天津 300074；3.国家城市给水排水工程技术研究中心，天津 300074）
Author(s):
LI　Wen-qiu1，2， SUN　Yong-li1，2，3， ZHANG　Wei1，3， LIU　Jing1，2，3， GAO　Chen-chen1，3， LI　Jia-ju1,2
（1. North China Municipal Engineering Design & Research Institute Co. Ltd.， Tianjin 300074， China； 2. Tianjin Key Laboratory of Urban Drainage System， Tianjin 300074， China； 3. National Engineering Technology Research Center for Water & Wastewater， Tianjin 300074， China）
关键词:
雨洪排口;  降雨污染;  旱季沉积冲刷
Keywords:
storm discharge outlets;  rainfall pollution;  dry season deposition scours
摘要:
排查结果显示，我国城市排水管网普遍存在旱季低流速沉积、雨污管网错接混接、小散乱排污、雨水管网末端截污等所致的雨洪排口降雨冲刷溢流或冒溢污染问题。研究表明，污水收集管网沉积物多呈现低有机组分含量、高碳低氮磷的典型特征，经降雨冲刷进入城市水体后很容易再次沉积至水体底部，成为城市水体雨后返黑返臭且长时间难以自净恢复的重要原因。工程调研结果显示，在排水管网末端的雨洪排口处建设以颗粒物去除为核心功能的大通量、短历时快速净化设施，有效削减可沉淀污染物和磷的入河总量，是现阶段切实解决我国降雨污染、抑制水体返黑返臭问题的有效举措，也是城市水污染控制与水环境治理的国际经验做法。
Abstract:
The urban drainage pipe network in China generally has the problems of rain erosion, overflow or overflow pollution caused by low-velocity deposition in dry season, misconnection and mixed connection of rain and sewage pipe networks, small scattered sewage discharge and interception of sewage at the end of rain and flood pipe networks. Research shows that network depositions are characterized by low organic content, high carbon content, and low nitrogen and phosphorus content. Network deposition is easy to be washed into water bodies by rainfall and deposit to the bottom of the water body again. It becomes the main reason of urban water bodies return black and stinky and hard to recover from self-purification after rainfall. According to the results of the engineering survey, this work points out that building a large-capacity, short-term and rapid purification facility with particle removal as the core function at the end of the drainage pipe network is an effective measure to effectively reduce the total amount of pollutants and phosphorus deposited into the river, which is an effective solution to the problem of rainfall pollution as well as black and odorous water bodies in China. Such management and prevention measures are also recognized by international experience.
更新日期/Last Update: 2023-06-17