ABSTRACT
Chlorine residual concentrations in water distribution systems could be utilized as a microbiological contamination indication. In this study, the method which parameterizes a parallel first-order equation to describe the chlorine decay induced by microbial suspensions over a wide range of conditions based on a limited number of batch experiments was tested. Recent evidence in the literature contradicted this idea. Furthermore, the results showed that the suggestion of a parallel first-order decay model for calculating the chlorine decay generated by microbial suspensions, which included empirical equations for each of the parameters of the model, is not universal. Finally, this study certified that EPANET-MSX could be used to simulate the chlorine concentration when a contaminant was introduced in a drinking water distribution system, specifically to determine its minimum value.
Acknowledgements
The study was supported by the Brazilian Coordination for the Improvement of Higher Education Personnel (CAPES) through the PDSE (Research Exchange Abroad Program) under PROBRAL CAPES/DAAD No. 17/2015.
Disclosure statement
No potential conflict of interest was reported by the author(s).