First Flush Phenomenon and Its Application for Stormwater Runoff Management

نوع مقاله : مقاله پژوهشی

نویسندگان

1 Prof. Emeritus, Dept. of Civil and Environmental Engineering, University of California, Davis, CA 95616

2 Prof., Dept. of Civil and Environmental Engineering, University of California, Los Angeles, CA 90095-1593

چکیده

This paper summarizes the results of the comprehensive first flush characterization study performed on three highly urbanized highway sites in Los Angeles, California. The study was performed from 2000 through 2005 and a total of 97 storm events were monitored ranging from 0.5 to 137 mm with an average rainfall of about 25.5 mm. First flush characterization was performed based on contaminant concentration and mass loading. To determine the first flush effect, multiple grab samples were obtained throughout the storm event with an emphasis on collecting additional grab samples during the first hour of storm event. Topics presented and discussed in this paper include: (1) meaningful definition of first flush characterization, (2) strategic method of collecting first flush sampling, (3) uniform method and interpreting first flush results, and (4) the implication of first flush results for urban stormwater runoff management.

کلیدواژه‌ها

عنوان مقاله [English]

First Flush Phenomenon and Its Application for Stormwater Runoff Management

نویسندگان [English]

  • Masoud Kayhanian 1
  • Michael Knudson Stenstrom 2
1 Prof. Emeritus, Dept. of Civil and Environmental Engineering, University of California, Davis, CA 95616
2 Prof., Dept. of Civil and Environmental Engineering, University of California, Los Angeles, CA 90095-1593
چکیده [English]

This paper summarizes the results of the comprehensive first flush characterization study performed on three highly urbanized highway sites in Los Angeles, California. The study was performed from 2000 through 2005 and a total of 97 storm events were monitored ranging from 0.5 to 137 mm with an average rainfall of about 25.5 mm. First flush characterization was performed based on contaminant concentration and mass loading. To determine the first flush effect, multiple grab samples were obtained throughout the storm event with an emphasis on collecting additional grab samples during the first hour of storm event. Topics presented and discussed in this paper include: (1) meaningful definition of first flush characterization, (2) strategic method of collecting first flush sampling, (3) uniform method and interpreting first flush results, and (4) the implication of first flush results for urban stormwater runoff management.

کلیدواژه‌ها [English]

  • Flush Phenomenon
  • Stormwater
  • Runoff Management

مراجع

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مجله آب و فاضلاب
دوره 31، شماره 6 - شماره پیاپی 130
بهمن و اسفند 1399
صفحه 12-26

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