Field Verification of Diffuser Performance

by Stephen R. Rives, EA Engineering Science and, Technology, Sparks, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


Effluent diffusers are used to gain relief from end-of-pipe acute toxicity criteria in NPDES water quality-based discharge permitting. Regulatory agencies require that the dilution provided by a diffuser be demonstrated through field measurements and/or numerical modeling. It is important that field measurements yield an estimate of flux-averaged dilution so comparisons with numerical diffuser models can be made.

Subject Headings: Field tests | Diffusion | Numerical models | Verification | Diffusion (fluid) | Water quality | Water discharge measurement | Flow measurement

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