摘要
城市降雨径流污染对水环境造成严重危害,市政雨水口作为收集雨水的构筑物,可以改造为源头截污设施。试验采取雨水口增设截污网篮的形式,对雨水口进、出水进行了采样检测,分析结果表明:径流雨水中污染物成分复杂,在雨季初期及降雨间隔时间较长的情况下,径流污染负荷尤为明显。截污装置以物理截留功能为主,对SS去除效果较好,场降雨平均去除率为54.5%,对COD、可滤残渣等污染物的去除效果相对较差。截污装置作为一种简易净化措施,可以应用于新建、改建及扩建地区的市政雨水口,起到控制径流污染、缓解黑臭水体的功能。
Urban runoff pollution has caused serious problems to the water environment.As a structure for collecting runoff,municipal inlet can be transformed into pollution interception facilities at the source.The test added a pollution interception net basket to the grate inlet,and sampled the influent and effluent of grate inlet from rainfall events.The results showed that the composition of runoff pollutant was complex.In the beginning of rainy season and when the interval was long,the pollution load of runoff was particularly serious.The removal device was mainly based on physical interception,the removal efficiency of SS was better,the average removal efficiency was 54.5%,and the removal efficiency of COD and other pollutants was relatively lower.As a simple purification measure,the decontamination device could be applied to the municipal water outlet in the newly built,rebuilt and expanded areas,and play a role in management of runoff pollution and black and odor water bodies.
作者
周国华
马莎莎
李俊奇
胡作鹏
李曦醇
李鹏
ZHOU Guo-hua;MA Sha-sha;LI Jun-qi;HU Zuo-peng;LI Xi-chun;LI Peng(School of Civil Engineering,Tianjin University,Tianjin 300350,China;Tianjin Eco-City Municipal&Landscape Co.,Ltd,Tianjin 300486,China;Renai College,Tianjin University,Tianjin 301636,China;Key Laboratory of Urban Stormwater System and Water Environment,Ministry of Education,Beijing 100044,China;Tianjin Municipal Engineering Design Institute,Tianjin 300392,China)
出处
《环境工程》
CAS
CSCD
北大核心
2020年第4期66-71,76,共7页
Environmental Engineering
基金
国家水体污染控制与治理科技重大专项(2017ZX07106002-03)
中新科技合作计划项目“中新生态城市政道路雨水径流污染控制技术研究与示范”。
关键词
径流污染
雨水口
截污装置
去除效果
runoff pollution
grate inlet
interception device
removal efficiency
