Study of transport of contaminants in a pipe network using the model EPANET

Paper

Ratnayake, Niranjanie and Jayatilake, Indunil N.. 1999. "Study of transport of contaminants in a pipe network using the model EPANET." 1st International Specialised Conference on Water Quality and Its Management (1998). India 02 - 06 Mar 1998 United Kingdom. https://doi.org/10.1016/S0273-1223(99)00473-4
Paper/Presentation Title

Study of transport of contaminants in a pipe network using the model EPANET

Presentation TypePaper
AuthorsRatnayake, Niranjanie and Jayatilake, Indunil N.
Journal or Proceedings TitleWater Science and Technology
Journal Citation40 (2), pp. 115-120
Number of Pages6
Year1999
PublisherIWA Publishing
Place of PublicationUnited Kingdom
ISSN0273-1223
1996-9732
Digital Object Identifier (DOI)https://doi.org/10.1016/S0273-1223(99)00473-4
Web Address (URL) of Paperhttps://iwaponline.com/wst/article-abstract/40/2/115/8210/Study-of-transport-of-contaminants-in-a-pipe
Conference/Event1st International Specialised Conference on Water Quality and Its Management (1998)
Event Details
1st International Specialised Conference on Water Quality and Its Management (1998)
Delivery
In person
Event Date
02 to end of 06 Mar 1998
Event Location
India
Abstract

A rural water supply system having two probable water sources, with an elevated tank, required to serve three schools and a hospital, was selected for this study. The model EPANET was used to study the variation of concentrations within the network of conservative and non-conservative substances introduced into the water at the source node and at other nodes. This paper discusses the findings of four scenario analyses undertaken in order to study the behaviour of the contaminants, and to develop strategies for management of some difficult situations encountered in water supply schemes. In the two source supply situation, it was observed that the water quality at the critical points in the system could be maintained below the permissible fluoride concentration, while maintaining the water requirements, by changing the pump operation cycles. When the behaviour of residual chlorine in the system was studied, it was observed that the model can be used to discover the chlorine booster points to maintain the required minimum residual chlorine content at the distribution terminal points. The results need to be verified by field-testing, once the water supply scheme, which is still under construction, is commissioned.

KeywordsComputer modelling; Contaminant transport; Pipe networks; Simulation; Water sources; Water supply
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Byline AffiliationsUniversity of Moratuwa, Sri Lanka
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