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A two-site chlorine decay model for the combined effects of pH, water distribution temperature and in-home heating profiles using differential evolution

TitleA two-site chlorine decay model for the combined effects of pH, water distribution temperature and in-home heating profiles using differential evolution
Publication TypeJournal Article
Year of Publication2014
AuthorsLiu B, Reckhow DA, Li Y.
JournalWater Research
Volume53
Start Page47
Pagination47-57
Date Published04/2014
KeywordsChlorine decay, Differential evolution, Heating, Mechanistic modeling
Abstract

A general framework for modeling the bulk chlorine decay that accommodates effects of pH, temperature in water distribution system and in-home heating profiles is developed. With a single set of readily interpreted parameters, and various fictive concentrations of reactive constituents in the water, chlorine decay for the different water systems could be simultaneously modeled. Differential Evolution is employed to estimate the parameters stochastically. By using Bayesian Information Criterion, it is shown that a model consisting of two reactive species is preferred over models that consist of one or three reactive species. The flexibility and power of the framework is demonstrated with a case study of both types of effects.

DOI10.1016/j.watres.2014.01.010