Robust optimization of valve management to improve water quality in WDNs under demand uncertainty

Journal article (2018)

Authors

O.O. Marquez Calvo IHE Delft Institute for Water Education
Claudia Quintiliani University of Cassino and Southern Lazio
Leonardo Alfonso IHE Delft Institute for Water Education
Cristiana Di Cristo Università degli Studi di Napoli Federico II, University of Cassino and Southern Lazio
Angelo Leopardi University of Cassino and Southern Lazio
D.P. Solomatine IHE Delft Institute for Water Education
Giovanni de Marinis University of Cassino and Southern Lazio
Affiliation
External organisation
More Info
expand_more

Published Date

2018

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Affiliation

External organisation

Abstract

Water quality deterioration in water distribution networks can be associated with high water residence time in the network. To this end, some previous studies have proposed optimization procedures for valve management. However, these studies generally come up with operational configurations assuming deterministic user demand patterns that may never occur in reality. In consequence, the proposed solutions may not be effective for improving water quality or do not comply with pressure constraints if different demand patterns are observed. This study proposes a methodology to determine robust configurations of the valves to keep water residence time at acceptable levels regardless of the variability in demand patterns. The methodology is tested on four different distribution systems of varying topology and size. Results show the importance of executing robust – instead of deterministic, optimization to find valve configurations that guarantee the performance of the networks in terms of hydraulics and water quality.