Inclusion of Variable Disinfection Levels in Slug Feed Optimal Disinfection of Water Distribution Systems

Elad Salomons, Avi Ostfeld

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Water distribution systems are vulnerable of being intentionally or accidentally contaminated. In the case of a contamination event the contaminated section of the water distribution system should be located, isolated and cleaned before it can be returned to regular service. Depending on the specific contaminant, the cleaning process mainly includes flushing and disinfection. All of the disinfection methods (for example: tablet, continuous and slug) require that the disinfectants will have minimal contact time (T) in a predefined concentration (C) with the pipes and the system's apparatuses. The regulatory agencies, such as the Ministry of Health in Israel or the American Water Work Association, publishes procedures for the disinfection of water systems in which usually only a single water main is considered and no specific procedures are given for larger portions of the water system. This paper presents an optimal operation plan for the disinfection of water distribution systems using the slug feed method while considering the injection times, flow rates and drainage locations while keeping variable disinfection C∗T values in different areas of the network. The method is a two stage GA-EPANET procedure. It is demonstrated on a small real-world network section.

Original languageEnglish
Title of host publicationWorld Environmental and Water Resources Congress 2017
Subtitle of host publicationHydraulics and Waterways and Water Distribution Systems Analysis - Selected Papers from the World Environmental and Water Resources Congress 2017
EditorsBrian Van Weele, Christopher N. Dunn
PublisherAmerican Society of Civil Engineers (ASCE)
Pages617-623
Number of pages7
ISBN (Electronic)9780784480625
DOIs
StatePublished - 2017
Externally publishedYes
Event17th World Environmental and Water Resources Congress 2017 - Sacramento, United States
Duration: 21 May 201725 May 2017

Publication series

NameWorld Environmental and Water Resources Congress 2017: Hydraulics and Waterways and Water Distribution Systems Analysis - Selected Papers from the World Environmental and Water Resources Congress 2017

Conference

Conference17th World Environmental and Water Resources Congress 2017
Country/TerritoryUnited States
CitySacramento
Period21/05/1725/05/17

Bibliographical note

Publisher Copyright:
© ASCE.

ASJC Scopus subject areas

  • General Environmental Science

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