天津市居民区不同材质屋面降雨径流污染特征分析

谢尚宇; 邱春生; 赵晓佳; 王晨晨; 王少坡; 孙力平; 赵乐军; 宋现财

doi:10.13205/j.hjgc.202201007

天津市居民区不同材质屋面降雨径流污染特征分析

doi: 10.13205/j.hjgc.202201007

谢尚宇¹,
邱春生^1,2, ,,
赵晓佳³,
王晨晨^1,2,
王少坡^1,2,
孙力平^1,2,
赵乐军⁴,
宋现财⁴

1. 天津城建大学环境与市政工程学院, 天津 300384;
2. 天津市水质科学与技术重点实验室, 天津 300384;
3. 南京市市政设计研究院有限责任公司, 南京 210008;
4. 天津市市政工程设计研究院, 天津 300384

基金项目:

国家水体污染控制与治理科技重大专项(2017ZX07106001)

详细信息

作者简介:
谢尚宇(1996-),男,硕士研究生,主要研究方向为城市水体控制与治理。Xsy525108@163.com

通讯作者:
邱春生(1984-),男,博士,副教授,主要研究方向为废弃物资源化。qcs254@163.com

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出版历程
- 收稿日期: 2021-05-06
- 网络出版日期: 2022-03-30
- 刊出日期: 2022-03-30

ANALYSIS OF RAINFALL RUNOFF POLLUTION CHARACTERISTICS OF DIFFERENT ROOF UNDERLYING SURFACES IN RESIDENTIAL AREAS OF TIANJIN

1. School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China;
2. Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin 300384, China;
3. Municipal Engineering Design and Research Institute of Nanjing Co., Ltd, Nanjing 210008, China;
4. Tianjin Municipal Engineering Design and Research Institute, Tianjin 300384, China

摘要

摘要: 选取天津市居民区典型材质(油毡、塑钢和水泥瓦)屋面下垫面,对其降雨径流污染特征和污染物初期冲刷效应进行了分析,并考察了不同类型材质屋面降雨径流中颗粒物分布及主要污染物赋存形式。场次降雨径流平均浓度分析结果表明:SS和COD是降雨径流中的主要污染物,降雨径流污染程度顺序为油毡屋面>水泥瓦屋面>塑钢屋面;颗粒物是降雨径流中污染物的主要载体,与COD和TP的相关度较高。各屋面径流污染均存在一定程度的初期冲刷效应,塑钢屋面径流污染物冲刷与Sartor-Boyd模型拟合相关性较好;屋面径流中颗粒物粒径分布主要受降雨量和降雨强度的影响,颗粒物粒径主要分布在10~100μm(体积比60%~75%)。不同屋面降雨径流中86%~92%的COD和90%~95%的TP均主要以颗粒态形式存在,而50%~65%的氮主要以溶解态形式存在。
- 降雨径流 /
- 下垫面 /
- 污染特征 /
- 初期冲刷效应 /
- 颗粒物
Abstract: The characteristics of the rainfall runoff pollution and the first flush effect of pollutants on the underlying surfaces of typical roofing materials(asphalt, plastic steel and cement tile) in the residential areas of Tianjin were investigated, and the distribution of particles and the occurrence forms of main pollutants in rainfall runoff from roofs of different materials were also analyzed. The results of the event mean concentration(EMC) analysis showed that SS and COD were the main pollutants in rainfall runoff. The order of pollution degree of rainfall runoff was asphalt roof > cement tile roof > plastic steel roof. The main carriers of pollutants in rainfall runoff were particulate matters, which were closely related with COD and TP. The first flush phenomenon was found in different roof runoffs, among them the plastic steel roof showed higher correlation with the Sartor-Boyd model. The particle size distribution of particulate pollutants in the runoffs were mainly influenced by the rainfall and rainfall intensity. The main particulate pollutants were distributed in particles diameter range of 10~100 μm, accounting for 60%~75% of the total volume. 86%~92% of COD and 90%~95% of TP were mainly existed in the granular form, while 50%~65% of nitrogen was mainly existed in the dissolved form in rainfall runoff from different roofs.
- rainfall runoff /
- underlying surface /
- pollution characteristic /
- first flush effect /
- particles

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