Journal of South China University of Technology (Natural Science Edition) ›› 2013, Vol. 41 ›› Issue (12): 29-35.doi: 10.3969/j.issn.1000-565X.2013.12.006

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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)

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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

CLC Number: