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Id 2790
Author Liu A.; Egodawatta P.; Goonetilleke A.
Title Ranking Three Water Sensitive Urban Design (WSUD) Practices Based on Hydraulic and Water Quality Treatment Performance: Implications for Effective Stormwater Treatment Design
Reference

Liu A.; Egodawatta P.; Goonetilleke A. Ranking Three Water Sensitive Urban Design (WSUD) Practices Based on Hydraulic and Water Quality Treatment Performance: Implications for Effective Stormwater Treatment Design,Water (Switzerland) 14 8

Keywords Roadsides; Runoff; Storm sewers; Storms; Water pollution; Water quality; Water treatment; Bioretention basins; Pollutant process; Roadside swale; Stormwater pollutant process; Stormwater pollutants; Stormwater quality; Treatment performance; Urban design; Water sensitive; Water‐sensitive urban design; constructed wetland; peak flow; rainfall; ranking; runoff; water quality; wetland management; Wetlands
Link to article https://www.scopus.com/inward/record.uri?eid=2-s2.0-85129037617&doi=10.3390%2fw14081296&partnerID=40&md5=d085b68725c6906e7c3b078d3a46d2a2
Abstract Bioretention basins, constructed wetlands and roadside swales are among the most com-mon Water‐Sensitive Urban Design (WSUD) or stormwater quality treatment systems. Although these systems can reduce stormwater quantity and improve quality, their hydraulic and water quality treatment performances are different. The aim of this study was to investigate the hydraulic and water quality performance of a bioretention basin, a constructed wetland and a roadside swale by analyzing monitored water quantity and quality data from a range of rainfall events using a ranking approach. The study outcomes showed that a bioretention basin performed better in relation to peak flow and runoff volume reduction while the constructed wetland tended to produce better outflow water quality. The roadside swale had a relatively lower capacity for treating stormwater. These results suggest that a bioretention basin could be the preferred option when the primary require-ment is water quantity improvement. However, if water quality improvement is the primary con-sideration, a constructed wetland could be more efficient. Additionally, when designing a treatment train, it appears to be preferable to place a bioretention basin prior to a constructed wetland. Further, a swale appears to be more appropriate for use as a pretreatment device. The research study outcomes will contribute to effective stormwater treatment design. © 2022 by the author. Licensee MDPI, Basel, Switzerland.

Metodology

DOI 10.3390/w14081296
Search Database Scopus
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