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CFD design approach for chlorine disinfection processes
Journal article   Peer reviewed

CFD design approach for chlorine disinfection processes

Dennis J Greene, Bakhtier Farouk and Charles N Haas
Journal - American Water Works Association, v 96(8), pp 138-150
2004

Abstract

Exact sciences and technology Heat and mass transfer. Packings, plates Hydrodynamics of contact apparatus Pollution Reactors Applied Sciences Chemical Engineering
Current approaches for chlorine disinfection process design involve application of a C x T (concentration x time) concept or the integrated disinfection design framework (IDDF) (Bellamy et al, 1998). This study presents a new design approach for chlorine disinfection that uses computational fluid dynamics (CFD). CFD models were developed to predict flow structure, mass transport, chlorine decay, and microbial inactivation in a continuous-flow reactor and associated piping. Past CFD models for chlorine disinfection have only predicted chlorine contactor flow structure and residence time distribution (Crozes et al, 1999; Wang & Falconer, 1998; Hannoun & Boulos, 1997; Stambolieva et al, 1993). The model described here incorporates experimentally derived terms for chlorine decay (free and combined) and microbial inactivation (Escherichia coli, MS2 bacteriophage, and Giardia muris) based on the work of Haas et al (1995). CFD predictions were in good agreement with the experimental data set over a wide range of microbial inactivation rates.

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#3 Good Health and Well-Being
#6 Clean Water and Sanitation

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Web of Science research areas
Engineering, Civil
Water Resources
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