THE FIRST FLUSH ANALYSIS OF STORMWATER RUNOFF IN A HUMID CLIMATE

Author:

Mastouri Reza1,Pourfallah Koushali Hassan1,Khaledian Mohammad Reza2

Affiliation:

1. Department of Civil Engineering, Arak Branch, Islamic Azad University, Arak, Iran

2. Department of Water Engineering, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran

Abstract

This study focuses on the pollutants from urban runoff to Zarjoob River, which is one of the rivers leading to Anzali International Wetland, which was listed in the Montreux Record in 1993 as a site in need of priority conservation. Storm water runoff from a residential area in Rasht (the largest city on Iran’s Caspian Sea coast) was monitored in this study during thirteen rainfall events, with a total of 58 storm runoff samples collected from 2018 to 2019. In most rainfall events, the mean concentration of total suspended solids (TSS) and chemical oxygen demand (COD) were higher than the other pollutants. The event mean concentrations (EMC) of TSS loads ranged from 57.3 mg/L to 682.5 mg/L and from 46.7 mg/L to 590.4 mg/L for COD. The site mean concentrations (SMC) for TSS, COD, total phosphorus (Total P), nitrate-nitrogen (NO3-N), and total lead (Pb) were 219, 205, 1.91, 20.63, and 0.25 mg/L, respectively. The first flush coefficient (b) was used to evaluate the first flushing of various events. The results of the study confirmed that the first flush occurred in all events, and the average ranking of first flush strength among the pollutants was COD > NO3-N > TP > Pb > TSS. Controlling one-third of the initial runoff volume appeared to be critical for managing the quality of urban rivers in humid regions. The findings of this study can be applied to urban runoff management strategies in cities with similar climatic conditions.

Publisher

Vilnius Gediminas Technical University

Subject

Management, Monitoring, Policy and Law,Nature and Landscape Conservation,Environmental Engineering

Reference51 articles.

1. Alias, N. B. (2013). First flush behavior in urban residential catchments [PhD thesis]. Queensland University of Technology.

2. Redefining the stormwater first flush phenomenon

3. Baird, F. C., Dybala, T. J., Jennings, M. E., & Okerman, D. J. (1996). Characterization of nonpoint sources and loadings to the corpus Christi bay national estuary program study area (Report CCBNEP-05, Corpus Christi Bay National Estuary Program). Texas Natural Resource Conservation Commission, Texas, USA.

4. Parking Deck’s First Flush

5. Runoff Quality Analysis of Urban Catchments with Analytical Probabilistic Models

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