CSO Induced Circulation in Marine Tributaries

by Alan F. Blumberg, Hydroqual, Inc, United States,
Laura J. Dodge, Hydroqual, Inc, United States,
William M. Leo, Hydroqual, Inc, United States,

Document Type: Proceeding Paper

Part of: Estuarine and Coastal Modeling

Abstract: Pulses of freshwater flow to estuarine tributaries from combined sewer overflows (CSO) create short duration intense salinity stratification in the tributaries. An accurate assessment of the flux of pollutants out of the tributary and into the major receiving water body can only be developed through an understanding of the interaction between the low density CSO water and the higher density salt water. This paper summarizes the application of a three-dimensional hydrodynamic, mathematical model to this short term intense stratification situation. An overview of the model, its level of calibration, and the results of its application are given.

Subject Headings: Salt water | Combined sewers | Three-dimensional models | Mathematical models | Hydrologic models | Water stratification | Water pollution | Overflow

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