Abstract
The research presented in this study focuses on the evaluation of flow and scalar transport characteristics of small disinfection systems, primarily through computational fluid dynamics (CFD) and physical conservative tracer studies overcoming the traditional "black box" approach of disinfection tank design based on theoretical detention time (TDT). Original research was performed on a series of pressurized tanks systems and on two differing open surface tank systems. CFD allowed for evaluation of the systems' respective flow characteristics which govern the transport of any quantity. Residence time distribution (RTD), or flow-through, curves measuring the effluent concentration of a passive scalar or conservative tracer provide a physical measure of the hydraulic mixing efficiency. The series of pressurized tank systems exhibited significant regions of turbulent mixing and recirculation corresponding to a relatively low hydraulic efficiency. Both open surface tank systems showed highly uneven flow paths and corresponding low hydraulic efficiencies. The research presented in this study provides an extensive evaluation for the flow and scalar characteristics of the described small public drinking water disinfection systems. © 2011 ASCE.
Recommended Citation
J. M. Wilson and S. K. Venayagamoorthy, "Hydraulics and Mixing Efficiency of Small Public Water Disinfection Systems," World Environmental and Water Resources Congress 2011 Bearing Knowledge for Sustainability Proceedings of the 2011 World Environmental and Water Resources Congress, pp. 243 - 252, American Society of Civil Engineers, Jul 2011.
The definitive version is available at https://doi.org/10.1061/41173(414)26
Department(s)
Civil, Architectural and Environmental Engineering
Keywords and Phrases
Disinfection; Hydraulics; Water distribution systems; Water treatment
International Standard Book Number (ISBN)
978-078441173-5
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2025 American Society of Civil Engineers, All rights reserved.
Publication Date
21 Jul 2011
