摘要
城市街区供排水系统直接服务百姓生活,是保障民众供水安全的“最后一公里”。街区供排水系统涵盖街区、小区和建筑单体,其污染事件屡见报道,且可能导致水源性疾病的暴发流行。新冠疫情背景下,更容易造成病毒的传播,危害用户健康,因此,可能的风险节点以及控制对策更值得被关注。文中梳理了城市街区供排水系统安全运行和水质保障相关的标准、规范、指南(指引);回顾了街区供排水系统发生的重要水污染事件;分析了具体的污染原因、污染物类型、污染节点;总结了城市街区供排水系统的关键风险节点,主要是二次供水设施、阀门、地漏存水弯、化粪池;最后针对街区供排水系统存在的主要安全问题提出了对应的控制对策,期望为今后供排水系统改造与日常管护提供理论支撑。
The urban block water supply and drainage system directly served the residents life,and is the"last kilometer"to guarantee the safety of water supply and consumption.The water supply and drainage system of the block covers the street,community and single building.However,the water pollution incidents are frequently reported,which lead to the outbreak of water related disease.In the background of the COVID-19,it is more likely to cause the virus transmission and threat to human health,so the possible risk points and control solutions are more worthy of attention.The paper elaborates the standards,specifications and guidelines related to the safe operation of urban block water supply and drainage system and water quality assurance.And this paper reviews the important water pollution events in the block water supply and drainage system,analyzes the pollution reasons,pollutant types and pollution nodes,and summarizes that the critical risk points of the urban block water supply and drainage system are mainly the secondary water supply facilities,valves,floor drain traps,septic tanks.Finally,the corresponding control solutions are proposed for the main safety problems,hoping to provide theoretical support for the reconstruction and design of the water supply and drainage system in the future.
作者
侯云鹤
李微
董紫君
孙晓辉
宁克明
宁雨阳
HOU Yunhe;LI Wei;DONG Zijun;SUN Xiaohui;NING Keming;NING Yuyang(School of Municipal and Environmental Engineering,Shenyang Jianzhu University,Shenyang 110168,China;College of Civil and Transportation Engineering,Shenzhen University,Shenzhen 518060,China;Shenzhen Branch,CSCEC AECOM Consultants Co.,Ltd.,Shenzhen 518027,China)
出处
《净水技术》
CAS
2023年第11期142-148,199,共8页
Water Purification Technology
基金
国家自然科学基金(42277373)
深圳市科技计划(KCXFZ20201221173413037)。
关键词
街区供排水系统
供排水安全
水污染事件分析
风险节点
控制对策
block water supply and drainage system
water supply and drainage safety
analysis of water pollution event
risk node
control solution
