Modeling bacterial growth in drinking water : effect of nutrients

Jegatheesan, Veeriah, Kastl, George, Fisher, Ian, Chandy, Joseph and Angles, Mark 2004, Modeling bacterial growth in drinking water : effect of nutrients, American water works association journal, vol. 96, no. 5, pp. 129-141.

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Title Modeling bacterial growth in drinking water : effect of nutrients
Author(s) Jegatheesan, Veeriah
Kastl, George
Fisher, Ian
Chandy, Joseph
Angles, Mark
Journal name American water works association journal
Volume number 96
Issue number 5
Start page 129
End page 141
Total pages 13
Publisher American Water Works Association
Place of publication Denver, Colo.
Publication date 2004-05
ISSN 0003-150X
Keyword(s) bacterial regrowth
organic carbon
population dynamics
suspended solids
Summary This article presents a model of growth of naturally occurring heterotrophic bacteria in the bulk water phase in the absence of disinfectant. The model considers growth with carbon, phosphorus, and nitrogen balance, death and lysis of bacteria, and conversion of less biodegradable organic carbon to assimilable organic carbon. Experimental data from two raw and two treated waters were used to test the model. The model describes the increase of live and dead bacterial cells in the water phase, and its output closely matches the experimental data. Such a model has the ability to characterize water nutrient status as well as to predict behavior of indigenous heterotrophic bacteria. The ability to predict bacterial population dynamics with respect to nutrients is beneficial for water treatment optimization. The model, based on microbiological measurements, helps to characterize treated water quality and project performance in terms of water quality into a distribution system.
Language eng
Field of Research 099999 Engineering not elsewhere classified
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
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