scholarly journals Carpark pollutant yields from first flush stormwater runoff

2021 ◽  
Vol 5 ◽  
pp. 100301
Author(s):  
Salina Poudyal ◽  
Thomas A. Cochrane ◽  
Ricardo Bello-Mendoza
Keyword(s):  
Stormwater Runoff ◽  
First Flush

The influence of particle size on the first flush strength of urban stormwater runoff

2017 ◽  
Vol 76 (8) ◽  
pp. 2140-2149 ◽  
Author(s):  
D. Morgan ◽  
P. Johnston ◽  
K. Osei ◽  
L. Gill
Keyword(s):  
Particle Size ◽  
Stormwater Runoff ◽  
Drainage System ◽  
Storm Event ◽  
Rain Event ◽  
First Flush ◽  
Urban Stormwater ◽  
Treatment Facilities ◽  
Urban Stormwater Runoff ◽  
Rain Events

The presence of a first flush (FF) of suspended solids (SS) in stormwater runoff has important implications for the design of treatment facilities, as does the particle size of solids. Whilst numerous studies have examined the FF behaviour of SS, few have disaggregated FF trends by particle size. In this study, the FF behaviour of SS was investigated in five size ranges, sampled from an urban stormwater drainage system located in Dublin, Ireland. A weak FF was exhibited in the gross fraction of SS, with just two events from 14 transporting more than 50% of the SS mass in the first 25% of runoff, implying that treatment structures should be capable of removing SS throughout the storm event. In the majority of rain events, the FF strength increased with decreasing particle size, probably related to the lower intensities required to dislodge solids at the onset of rainfall. Although FF strength was correlated with rain event characteristics, prediction intervals were too broad to confirm FF presence based on rainfall data alone. Therefore, the design of smaller treatment volumes based on an assumption of FF must be justified by local monitoring data.

A Traditional Analysis of the First Flush Effect for Nutrients in Stormwater Runoff from Two Small Urban Catchments

2012 ◽  
Vol 223 (9) ◽  
pp. 5903-5915 ◽  
Author(s):  
J. M. Hathaway ◽  
R. S. Tucker ◽  
J. M. Spooner ◽  
W. F. Hunt
Keyword(s):  
Stormwater Runoff ◽  
First Flush ◽  
Urban Catchments ◽  
First Flush Effect

Identifying the first flush in stormwater runoff using UV spectroscopy

2017 ◽  
Vol 96 ◽  
pp. 231-236 ◽  
Author(s):  
Rupak Aryal ◽  
Meng Nan Chong ◽  
Simon Beecham ◽  
Bandita Mainali
Keyword(s):  
Uv Spectroscopy ◽  
Stormwater Runoff ◽  
First Flush

First Flush Stormwater Runoff from Highways

2001 ◽  
Author(s):  
M. K. Stenstrom ◽  
S.-L. Lau ◽  
H.-H. Lee ◽  
J.-S. Ma ◽  
H. Ha ◽  
...  
Keyword(s):  
Stormwater Runoff ◽  
First Flush

Evaluation of the methods for first flush analysis in urban watersheds

2003 ◽  
Vol 48 (10) ◽  
pp. 167-176 ◽  
Author(s):  
J.H. Lee ◽  
M.J. Yu ◽  
K.W. Bang ◽  
J.S. Choe
Keyword(s):  
Stormwater Runoff ◽  
Oxygen Demand ◽  
Load Ratio ◽  
Polynomial Equation ◽  
General Tendency ◽  
First Flush ◽  
Cumulative Curve ◽  
Hexane Extracts ◽  
Nonlinear Form

The general tendency between the ratio of cumulative pollutant loads and the ratio of cumulative runoff appears as a nonlinear form which can be expressed in the form of a third polynomial. In this paper third degree polynomials were applied to represent the first flush curves based on the relationship between the cumulative pollutant load ratio and cumulative runoff ratio. The quantity of stormwater runoff and quality constituents, including chemical oxygen demand (COD), suspended solids (SS), total Kjeldahl nitrogen (TKN), ortho-phosphorus (PO4-P), total phosphorus (TP), n-hexane extracts (HEM), and iron (Fe) were analysed. The objectives of this study were (1) to characterize the quality of stormwater runoff (2) in order to analyse the cumulative curve area ratio and to calculate the first flush coefficients, (3) while also representing the first flush with a third polynomial equation.

scholarly journals Effect of Urban Stormwater Road Runoff of Different Land Use Types on an Urban River in Shenzhen, China

Water ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2545 ◽  
Author(s):  
Yang Liu ◽  
Chunyi Wang ◽  
Yang Yu ◽  
Yongyu Chen ◽  
Longfei Du ◽  
...  
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Stormwater Runoff ◽  
Urban River ◽  
Water Bodies ◽  
First Flush ◽  
Road Runoff ◽  
Urban Stormwater ◽  
Land Use Types ◽  
Receiving Water

Urban storm runoff is a major source of pollutants in receiving water bodies. To assess the impact of urban stormwater runoff on an urban river, the runoff process of total suspended solids (TSS), chemical oxygen demand (COD), ammonium (NH4), and total phosphorus (TP) were investigated on road surfaces classified as arterial road (AR), residential area (RA), and industrial area (IA) in the Pingshan River (PSR) watershed in Shenzhen, China. Event mean concentration (EMC) was calculated to analyze the water quality of road runoff, and the dimensionless M(V) cumulative curves were used to estimate the course of decreasing concentration of runoff pollutants during each rainfall event. Multicriteria decision making methods (PROMETHEE-GAIA) were used to identify the linkage between runoff pollutants, land use types, and rainfall intensity. The EMCs of COD and TP in runoff exceeded the class IV level of the water quality standard for surface water (China). RA was a major potential source for NH4, COD, and TP in the river. Controlling the first flush is critical to decrease the effect of road runoff on receiving water bodies, as most runoff pollutants in AR, RA, and IA had a first flush effect during heavy rainfall. The specific management measure for runoff pollution varied with land use type. Reducing road TSS concentrations was effective for controlling runoff pollution in AR and RA because NH4, TP, and COD attached to particulate matter. In IA, the collection and reuse of stormwater in the initial rainfall period were effective for reducing the effect of soluble pollutants in runoff on receiving water bodies. This study provides new information for managing urban road stormwater runoff in different land use types.

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