Modeling Suspended Solids and Bacteria in Ford Lake

by Christopher G. Uchrin, (M.ASCE), Asst. Prof. of Civ. and Environmental Engrg.; Rutgers University, Piscataway, N.J. 08854,
Walter J. Weber, Jr., (M.ASCE), Prof. of Environmental and Water Resources Engrg. and Chairman.; Univ. Program in Water Resources, The University of Michigan, Ann Arbor, Mich.,

Serial Information: Journal of the Environmental Engineering Division, 1981, Vol. 107, Issue 5, Pg. 975-993

Document Type: Journal Paper

Abstract: A submodel for computing the behavior of suspended solids and associated pollutants in turbulent, open channels was constructed and tested in a natural water system. The submodel equation was the two-dimensional equation for suspended particles in a turbulent flowing medium. A procedure was developed to determine particle fall velocity distributions and a bottom boundary condition calibrated to three sets of flume data. A numerical solution was obtained and expressed in graphical form as a function of particle fall velocity, channel shear velocity, and channel depth. The submodel was successfully tested in the Ford Lake, Michigan, system with fecal coliform bacteria as the associated pollutant.

Subject Headings: Bacteria | Particle velocity | Lakes | Turbidity | Solid mechanics | Fluid velocity | Velocity distribution | Model tests | Particle size distribution | Computer models | Michigan | North America | United States

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