Hydrodynamic and Toxic Contaminant Dispersion in the Lower St. Marys River

by E. M. Yuen, Lawrence Tech Univ, Southfield, United States,
J. A. McCorquodale, Lawrence Tech Univ, Southfield, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


A numerical model that simulates the hydrodynamics and the transport of toxic contaminants in the Lower St.Marys River is being calibrated and verified using field data from the U.S. Army Corps of Engineers and the Ontario Ministry of Environment. The model solves the equations for continuity, momentum, turbulent kinetic energy ?, dissipation of turbulence energy ?, and contaminant dispersion concentration. It can treat multiple outfalls, islands, confluences, diversions and rapid mixing. Upon verification of the model. It was used to investigate waste load allocations in the river to meet specified water quality objectives. Isoconcentration maps were obtained with results from the model to determine Impact Zones downstream of the outfall.

Subject Headings: Numerical models | Contaminant transport | Water quality | Toxicity | Hydrodynamics | Water pollution | Verification | Ontario | Canada

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