Modeling of CSO-Induced Pollutant Transport in Mt. Hope Bay
Publication: Journal of Environmental Engineering
Volume 121, Issue 7
Abstract
Combined sewage overflow (CSO) discharges due to a storm event create strongly stratified pollutant plumes on the surface of Mt. Hope Bay, of Rhode Island and Massachusetts. To examine the CSO-induced pollutant impact, a three-dimensional numerical model was used to simulate the transport processes in the bay resulting from a dye release at CSO discharges during a storm event on September 22, 1990. The model used a vertical γ-coordinate system, with higher grid resolution near surface, to describe the constituent transport. Model predictions reasonably showed that the CSO plume remained concentrated near the surface and was transported down bay along the eastern shore. Agreement of predictions of sea surface elevation, currents, salinity, and dye concentrations with available observations was good. Time series of predicted dye concentrations were used to estimate the flushing time, which was approximately 2 days at midbay. Sensitivity studies were performed for several vertical-grid resolutions. The use of the γ-coordinate system was shown to be more efficient for describing the CSO-induced transport processes, with relatively less computational cost.
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References
1.
Alfrink, B. J., and Leo, C.(1983). “Two Equation turbulence model for flow in trenches.”J. Hydr. Engrg., ASCE, 109(3), 941–951.
2.
Bowden, K. F., and Hamilton, P.(1975). “Some experiments with a numerical model of circulation and mixing in a tidal estuary.”Estuarine Coast. Marine Sci., 3, 281–301.
3.
Gadhoury, R. A., Kent, D. J., Rieq, K. G., and White, H. L. (1988). “Water resource data MA-RI.”USGS Water Data Rep., United States Geological Survey (USGS), Boston, Mass.
4.
Hess, K. W., and White, F. M. (1974). “A numerical tidal model Narragansett Bay.”Marine Tech. Rep. No. 20, University of Rhode Island, Kingston, R.I., p. 141.
5.
Huang, W. (1993). “Three dimensional numerical modeling of circulation and water quality induced by combined sewage overflow discharges,” PhD thesis, University of Rhode Island, Kingston, R.I
6.
Hunter, D. (1975). “A three dimensional water quality model for estuarine, coastal sea, and continental shelf applications,” MSc thesis, University of Rhode Island, Kingston, R.I.
7.
Madala, R. V., and Piacsek, S. A. (1977). “A semi-implicit numerical model for barclinic oceans.”J. Computational Physics, (23), 167–178.
8.
Maquire Group, Inc. (1987). “Phase I. combined sewer overflow.”Rep. Prepared for Fall River Commission, Foxborough, Mass.
9.
Phillips, N. A.(1957). “A coordinate system having some special advantage for numerical forecasting.”J. Meteorology, 14, 184–185.
10.
Richtmyer, R. D., and Morton, K. W. (1967). Difference methods for initial-value problem, Second Ed., Interscience, New York, N.Y.
11.
Roach, P. J. (1976). Computational fluid dynamics . Hermosa Publishers, Albuquerque, N.M.
12.
Spaulding, M. L., and White, F. (1988). Circulation dynamics in Mt. Hope Bay and the lower Taunton River.”Proc., Int. Conf. on Estuarine Physics, Asolimar, Calif.
13.
Spaulding, M. L., Huang, W., and Mendelsohn, D. (1989). “Application of a boundary-fitted coordinate hydrodynamic model.”Proc., Conf. on Estuarine and Coast. Modeling. ASCE, New York, N.Y., 27–38.
14.
Swanson, J. C. (1986). “A three dimensional numerical model system of coastal circulation and water quality,” PhD thesis, University of Rhode Island, Kingston, R.I.
15.
Turner, A. C., Asselin, S., and Feng, S. (1990). “City of fall river combined sewer overflow facilities: receiving water impacts field measurement program.”Rep. No. 90-24, Applied Science Associates, Inc., Narragansett, R.I.
16.
Van de Kreeke, J. (1983). “Residual time: application to small boat basins.”J. Wtrwy. Port, Coast. and Oc. Engrg., 109(4).
17.
Watkins, B. (1987). “Mt. Hope Bay Sanitary Survey 1986–1987. Rep., Narragansett Bay Project, Providence, R.I.
18.
Weber, J. E. (1983). “Study wind and wind induced currents in the open ocean.”J. Physical Oceanography, (3), 524–530.
Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 121 • Issue 7 • July 1995
Pages: 492 - 498
Copyright
Copyright © 1995 American Society of Civil Engineers.
History
Published online: Jul 1, 1995
Published in print: Jul 1995
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