华南理工大学学报(自然科学版) ›› 2013, Vol. 41 ›› Issue (12): 29-35.doi: 10.3969/j.issn.1000-565X.2013.12.006

• 环境科学与技术 • 上一篇    下一篇

广州校园区降雨径流污染的初期冲刷效应

黄国如1,2 陈子宇1   

  1. 1.华南理工大学 土木与交通学院,广东 广州 510640; 2.华南理工大学 亚热带建筑科学国家重点实验室,广东 广州 510640
  • 收稿日期:2012-11-07 修回日期:2013-03-14 出版日期:2013-12-25 发布日期:2013-11-19
  • 通信作者: 黄国如(1969-),男,教授,博士生导师,主要从事水资源和水环境研究. E-mail:huanggr@scut.edu.cn
  • 作者简介:黄国如(1969-),男,教授,博士生导师,主要从事水资源和水环境研究.
  • 基金资助:

    国家水体污染控制与治理科技重大专项(2009ZX07528-001);华南理工大学亚热带建筑科学国家重点实验室自主研究课题(2012ZC09)

First Flush Effect of Urban Rainfall Runoff Pollution from Campus in Guangzhou,China

Huang Guo- ru1,2 Chen Zi- yu1   

  1. 1.School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,Guangdong,China;2.State Key Laboratory of Subtropical Building Science,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2012-11-07 Revised:2013-03-14 Online:2013-12-25 Published:2013-11-19
  • Contact: 黄国如(1969-),男,教授,博士生导师,主要从事水资源和水环境研究. E-mail:huanggr@scut.edu.cn
  • About author:黄国如(1969-),男,教授,博士生导师,主要从事水资源和水环境研究.
  • Supported by:

    国家水体污染控制与治理科技重大专项(2009ZX07528-001);华南理工大学亚热带建筑科学国家重点实验室自主研究课题(2012ZC09)

摘要: 对广州市华南理工大学五山校区2012年6 -8月4 场次实测降雨径流污染的初期冲刷效应进行了研究,结果表明,污染物TSS、COD、TN、TP、TCu、Zn、总硬度、NO2-- N、NH3- N、 SO42- 等均存在不同程度的初期雨水径流冲刷现象.根据其中3 场次降雨的总体结果分析发现:初期20%径流携带的TSS 负荷量为其总量的 7. 0% ~39. 4%,COD 为 20. 4% ~56. 0%, TN 为 13. 8% ~35. 2%,TP 为 16. 0% ~35. 2%;初期 30%径流携带的 TSS 负荷量为其总量的18. 6% ~ 56. 1%,COD 为37. 8% ~ 72. 6%,TN 为 22. 8% ~ 43. 2%,TP 为24. 3% ~53. 1%.对主要污染物 TSS、COD、TN、TP 的初期冲刷强度与降雨时间、降雨量、平均雨强、最大雨强、最大雨强出现时间、雨前干燥天气期之间的相关性分别进行分析,结果表明,除个别因素显著相关外,总体上表现为相关但不显著或不相关.

关键词: 城市降雨径流污染, 初期冲刷效应, 累积负荷分布曲线, 初期冲刷强度指数

Abstract:

This paper deals with the first flush effects of four monitored rainfall runoff events in South China Univer-sity of Technology in Guangzhou from June,2012 to August 2012.The results show that the first flush phenomenaat different degrees exist in TSS,COD,TN,TP,TCu,Zn,total hardness,NO2-- N,NH3- N and SO42-.The analy-sis results of three rainfall events show that the first 20% of the runoff volume carries the pollution load of 7. 0% ~39. 4% for TSS,20. 4% ~56. 0% for COD,13. 8% ~35. 2% for TN and 16. 0% ~35. 2% for TP,while the first30% carries 18. 6% ~56. 1% for TSS,37. 8% ~72. 6% for COD,22. 8% ~43. 2% for TN and 24. 3% ~53. 1% forTP.Moreover,it is demonstrated that,except for a few significant correlative cases,there is no significant correla-tion or only low correlation between the first flush intensity of TSS,COD,TN as well as TP and the weather para-meters such as rainfall time,rainfall volume,average rainfall intensity,maximum rainfall intensity,appearancetime of maximum rainfall intensity and antecedent dry weather period.

Key words: urban rainfall runoff pollution, first flush effect, cumulative load distribution curve, mass first flush ratio

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