Modeling Full-Scale Diffused Aeration Systems

by Terry L. Johnson, (M.ASCE), Black & Veatch, Kansas City, United States,
Ross E. McKinney, (Hon.M.ASCE), Black & Veatch, Kansas City, United States,

Document Type: Proceeding Paper

Part of: Critical Issues in Water and Wastewater Treatment


The purpose of this research was to show the direct relationship of the oxygen mass transfer coefficient (KLaT) to mixing, and to investigate the impacts of mixing on dissolved oxygen saturation concentration (Cs) in diffused aeration systems. Furthermore, the findings reveal a high correlation of KLaT to mixing and to the type and orientation of diffused aeration systems, whereas Cs is dependent upon only the theoretical surface saturation and diffuser depth.

Subject Headings: Oxygen transfer | Dissolved oxygen | Diffusion (fluid) | Aeration | Mass transfer | Diffusion | Water treatment

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