Island topographies to reduce short-circuiting in stormwater detention ponds and treatment wetlands
Name
Guzman.etal.2018.pdf
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11.13 MB
Format
Adobe PDF
Checksum (MD5)
07074ca6880b89692b223dd34f6a5551
Author(s)
Balderas-Guzmán, Celina
Cohen, Samantha R
Xavier, ManoelLucas Machado
Swingle, Tyler R
Qiu, Waishan
Nepf, Heidi
Date Issued
July 2018
Journal
Ecological Engineering
Publisher
Elsevier BV
Citation
Balderas-Guzman, Celina et al. "Island topographies to reduce short-circuiting in stormwater detention ponds and treatment wetlands." Ecological Engineering 117 (July 2018): 182-193 © 2018 Elsevier B.V.
Version
Author's final manuscript
Abstract
Urban stormwater is an increasing environmental problem for cities worldwide. Many cities have turned to green infrastructure solutions, which provide water treatment and retention while also harnessing other ecosystem services. This study considered the design of detention ponds and treatment wetlands with the goal of improving hydraulic performance (specifically reducing short-circuiting) while also increasing habitat diversity. Fifty-four basin topographies, including a variety of islands and berms, were compared to an open and a traditional serpentine basin. Using scaled physical models the hydraulic performance of each design was evaluated using tracer studies to construct the residence time distribution and to visually observe the circulation pattern. In addition, the earthwork construction cost and habitat diversity index (based on the Shannon-Weaver entropy measure) were estimated at field scale. The results reveal multiple design options that improve hydraulic performance, relative to both the open and serpentine basins, and which represent a range of habit diversity and cost. General guidelines for optimal configurations are discussed. Keywords: Stormwater detention ponds; Treatment wetlands; Residence time; Green infrastructure design
MIT Department
Massachusetts Institute of Technology. Norman B. Leventhal Center for Advanced Urbanism
Massachusetts Institute of Technology. Department of Urban Studies and Planning
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
Massachusetts Institute of Technology. Department of Architecture
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/j.ecoleng.2018.02.020
