scholarly journals A study of urban stormwater runoff and water quality control based on system coupling simulations

2021 ◽  
Vol 826 (1) ◽  
pp. 012001
Author(s):  
Wei Wu ◽  
Lei Ren ◽  
Laifu Zhu
Keyword(s):  
Water Quality ◽  
Quality Control ◽  
Stormwater Runoff ◽  
Urban Stormwater ◽  
Water Quality Control ◽  
Urban Stormwater Runoff ◽  
System Coupling

Design and Operation of an Aerobic Biological Filter for the Treatment of Urban Stormwater Runoff

1997 ◽  
Vol 32 (1) ◽  
pp. 119-138 ◽  
Author(s):  
B.C. Anderson ◽  
R.J. Caldwell ◽  
A.A. Crowder ◽  
J. Marsalek ◽  
W.E. Watt
Keyword(s):  
Quality Control ◽  
Catchment Area ◽  
Stormwater Runoff ◽  
Shopping Mall ◽  
Second Phase ◽  
Field Scale ◽  
Urban Stormwater ◽  
Biological Filter ◽  
Detention Pond ◽  
Urban Stormwater Runoff

Abstract The primary objective of this research is to develop a field-scale submerged aerobic biological filter (SABF) system for the treatment of urban stormwater runoff. This could be either directly through the introduction of raw runoff to the system, or indirectly by using effluent from a stormwater detention pond as the contaminant source (in a post pond configuration). The SABF influent in all phases of the research was collected from the outlet of a stormwater management pond, constructed in 1982 to provide runoff quantity control for an urban shopping mall complex. This on-line pond also receives runoff from the upstream suburban and rural connected areas, as well as base flow, with a total catchment area of 4.4 km2 (440 ha). Continuous development in the catchment area and the unfavourable shape of the detention pond, have resulted in very poor quantity and quality control. The SABF research was therefore initiated to provide additional cost-effective quality control for this overloaded system. A number of research phases have been undertaken. The first phase involved development of a bench-scale laboratory SABF, which was used to examine the treatment processes and to establish operating parameters for the system. The second phase used these preliminary results to design, construct, install and assess the operation of a field-scale unit at the stormwater pond site. A third phase has involved long-term operation of the field system, and detailed examination of the influence of operational variables on system performance. This paper summarizes the findings from the lab-scale research and the first phase of field filter operation. The results indicate that this biotechno-logical treatment system may be suitable for the proposed application.

scholarly journals Impact of roof surface runoff on urban water quality

2012 ◽  
Vol 66 (7) ◽  
pp. 1527-1533 ◽  
Author(s):  
P. Egodawatta ◽  
N. S. Miguntanna ◽  
A. Goonetilleke
Keyword(s):  
Water Quality ◽  
Stormwater Runoff ◽  
Urban Water ◽  
Urban Stormwater ◽  
Urban Water Quality ◽  
Impervious Area ◽  
Road Surfaces ◽  
Urban Catchments ◽  
Urban Stormwater Runoff

The pollutant impacts of urban stormwater runoff on receiving waters are well documented in research literature. However, it is road surfaces that are commonly identified as the significant pollutant source. This paper presents the outcomes of an extensive program of research into the role of roof surfaces in urban water quality with particular focus on solids, nutrients and organic carbon. The outcomes confirmed that roof surfaces play an important role in influencing the pollutant characteristics of urban stormwater runoff. Pollutant build-up and wash-off characteristics for roads and roof surfaces were found to be appreciably different. The pollutant wash-off characteristics exhibited by roof surfaces show that it influences the first flush phenomenon more significantly than road surfaces. In most urban catchments, as roof surfaces constitute a higher fraction of impervious area compared with road surfaces, it is important that the pollutant generation role of roof surfaces is specifically taken into consideration in stormwater quality mitigation strategies.

Water Quality Impacts of Stormwater-Associated Contaminants: Focus on Real Problems

1993 ◽  
Vol 28 (3-5) ◽  
pp. 231-240 ◽  
Author(s):  
G. Fred Lee ◽  
Anne Jones-Lee
Keyword(s):  
Water Quality ◽  
Stormwater Runoff ◽  
Quality Criteria ◽  
Water Quality Criteria ◽  
Urban Stormwater ◽  
Worst Case ◽  
Beneficial Uses ◽  
Us Epa ◽  
Receiving Waters ◽  
Urban Stormwater Runoff

Water pollution control agencies are implementing control programs for chemical contaminants in urban stormwater runoff because concentrations of total forms of some contaminants in receiving water exceed numeric water quality standards. While some assert that stormwater-associated contaminants are causing water quality problems (impairment of beneficial uses), there are significant reasons to question the reliability of that claim. While urban stormwater runoff frequently contains many chemicals in sufficient concentrations to cause exceedance of numeric US EPA water quality criteria in receiving waters, exceedance of a water quality criterion/standard applied to total concentrations is not a demonstration of water quality impairment The US EPA water quality criteria were developed for worst-case or near-worst-case exposure to available forms of the contaminants. Such exposure conditions would not be expected with short-term, episodic runoff events. Substantial portions of many of the chemical contaminants in stormwater runoff are associated with particulates and would hence be expected to be largely unavailable to affect aquatic life-related beneficial uses of receiving waters. Furthermore, evidence of beneficial use impairment caused by urban stormwater runoff has not been forthcoming to document the claims. It is concluded that many of the contaminants associated with urban stormwater runoff from residential and commercial areas do not impair beneficial uses of receiving waters. The current US EPA water quality criteria have limited applicability to assessing potential water quality concerns for stormwater runoff. Guidance is presented on how urban stormwater runoff-associated contaminants should be evaluated and regulated to control use impairment without significant unnecessary expenditures for contaminant control.

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