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  3. Adaptation of Dual Drainage to Control Flooding and Enhance Combined Sewer Systems in Highly Urbanized Areas
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Adaptation of Dual Drainage to Control Flooding and Enhance Combined Sewer Systems in Highly Urbanized Areas

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Type de ressource
Prépublication
Auteurs/contributeurs
  • Ossa Ossa, Juan Esteban (Auteur)
  • Duchesne, Sophie (Auteur)
  • Pelletier, Geneviève (Auteur)
Titre
Adaptation of Dual Drainage to Control Flooding and Enhance Combined Sewer Systems in Highly Urbanized Areas
Résumé
Combined sewer surcharges in densely urbanized areas have become more frequent due to the expansion of impervious surfaces and intensified precipitation caused by climate change. These surcharges can generate system overflows, causing urban flooding and pollution of urban areas. This paper presents a novel methodology to mitigate sewer system surcharges and control surface water. In this methodology, flow control devices and urban landscape retrofitting are proposed as strategies to reduce water inflow into the sewer network and manage excess water on the surface during extreme rainfall events. For this purpose, a 1D/2D dual drainage model was developed for two case studies located in Montreal, Canada. Applying the proposed methodology to these two sites led to a reduction of the volume of wastewater overflows by 100% and 86%, and a decrease in the number of surface overflows by 100% and 71%, respectively, at the two sites for a 100-year return period 3-h Chicago design rainfall. It also controlled the extent of flooding, reduced the volume of uncontrolled surface floods by 78% and 80% and decreased flooded areas by 68% and 42%, respectively, at the two sites for the same design rainfall.
Genre
SSRN Scholarly Paper
Identifiant dans l'archive
4871349
Lieu
Rochester, NY
Date
2024-06-20
DOI
10.2139/ssrn.4871349
URL
https://papers.ssrn.com/abstract=4871349
Consulté le
2025-07-13 19 h 05
Langue
en
Catalogue de bibl.
Social Science Research Network
Référence
Ossa Ossa, J. E., Duchesne, S., & Pelletier, G. (2024). Adaptation of Dual Drainage to Control Flooding and Enhance Combined Sewer Systems in Highly Urbanized Areas (SSRN Scholarly Paper No. 4871349). https://doi.org/10.2139/ssrn.4871349
Document
  • Ossa Ossa et al. - 2024 - Adaptation of Dual Drainage to Control Flooding an.pdf
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https://bibliographies.uqam.ca/riisq/bibliographie/VYPTHVWV

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