Journal article
Modeling Flow and Pollutant Removal of Wet Detention Pond Treating Stormwater Runoff
Journal of environmental engineering (New York, N.Y.), Vol.130(11), pp.1315-1321
11/2004
Handle:
https://hdl.handle.net/2376/117963
Abstract
A mathematical model of pollutant removal by wet ponds was developed based on the mass balance principle and the release-storage equation. The release-storage equation can be linear or nonlinear depending on the wet pond shape and the spillway crest features. If the exponent index of the storage relationship (d) is equal to the index of the outflow equation (b), the wet pond hydrological routing model is linear. Otherwise, the model is nonlinear. Substituting the release-storage equation into the continuity equation produces a nonlinear ordinary differential equation (ODE). A Runge-Kutta method was used to solve the resulting nonlinear ODE. When the ratio of indexes d/b=2/3, the hydrologic wet pond model reduces to a special case that leads to an implicit analytical solution. The pollutant removal and flow routing models were tested with data obtained from an actual wet pond for treating highway runoff. The predicted flow discharges and pollutant concentrations compared well with the observed data.
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Details
- Title
- Modeling Flow and Pollutant Removal of Wet Detention Pond Treating Stormwater Runoff
- Creators
- Guang-Te Wang - Research Associate, Dept. of Biological System Engineering, Washington State Univ., Pullman, WA 99164-6120. E-mail: bswang@wsunix.wsu.eduShulin Chen - Professor, Dept. of Biological System Engineering, Washington State Univ., Pullman, WA 99164-6120. E-mail: chens@wsu.eduMichael E Barber - Director, State of Washington Water Research Center and Associate Professor, Dept. of Civil and Environmental Engineering, Washington State Univ., Pullman, WA 99164-3002. E-mail: meb@wsu.eduDavid R Yonge - Professor, Dept. of Civil and Environmental Engineering, Washington State Univ., Pullman, WA 99164-2910. E-mail: yonge@wsu.edu
- Publication Details
- Journal of environmental engineering (New York, N.Y.), Vol.130(11), pp.1315-1321
- Academic Unit
- Biological Systems Engineering, Department of
- Publisher
- American Society of Civil Engineers
- Identifiers
- 99900583061201842
- Language
- English
- Resource Type
- Journal article