Controlling disinfection by-products within a distribution system through bubble aeration

Bryant E. McDonnell, Dominic L. Boccelli

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Disinfection by-product (DBP) formation within drinking water distribution systems is an inevitable circumstance due to reactions between residual chlorine and carry-over organic matter from the treatment process. However, regulated DBPs must be maintained below the maximum containment levels. Distribution systems are operated, in part, with by-product formation in mind, albeit development exceeding growth, increased water age, changes in water demand, and tighter water quality regulations can compromise a utility's ability to meet water quality regulations. While many water quality models exist that predict formation and removal of disinfectant by-products, no models have been applied to a distribution system model to explore system-wide impacts when employing a trihalomethane (THM) control strategy from within storage tanks, such as aeration. This work utilizes a first-order model to represent the removal of THMs through the use of fine bubble aeration within a storage tank. The model parameters were estimated using laboratory-scale experimental data and were shown to adequately estimate observed conditions within an actual storage tank employing fine bubble aeration. The resulting model was used to determine the system-wide impact of in-tank aeration as a THM removal strategy. Overall, the aeration system was shown to have a significant impact on THM concentrations throughout the system, particularly in regions impacted by the aerated storage tank.

Original languageEnglish (US)
Title of host publication14th Water Distribution Systems Analysis Conference 2012, WDSA 2012
Pages415-424
Number of pages10
StatePublished - 2012
Externally publishedYes
Event14th Water Distribution Systems Analysis Conference 2012, WDSA 2012 - Adelaide, SA, Australia
Duration: Sep 24 2012Sep 27 2012

Publication series

Name14th Water Distribution Systems Analysis Conference 2012, WDSA 2012
Volume1

Other

Other14th Water Distribution Systems Analysis Conference 2012, WDSA 2012
Country/TerritoryAustralia
CityAdelaide, SA
Period9/24/129/27/12

ASJC Scopus subject areas

  • Water Science and Technology

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