Modeling Performances of Detention Basins with Uncertainty Analysis
Publication: World Environmental and Water Resources Congress 2009: Great Rivers
Abstract
Best Management Practices (BMPs) correspond to actions and practices used to reduce flow rate and the constituent concentration in urban runoff. The extended detention basin is the most widely used among various types of BMPs. This study addresses the design guidelines for extended detention basins by applying uncertainty analysis to predict the magnitude of the widely varying urban nonpoint source pollution concentration expected in the BMP influent and effluent. With uncertainty analysis considered, urban nonpoint source pollution can be predicted with greater accuracy and better detention basin design criteria can be established for the protection of receiving waters. This study uses and Total Suspended Solid (TSS) as the representative water quality parameter from extended detention basin. Hydrologic and BMP geometric data of watersheds correspond to the location of these detention basins. This study incorporates the k-C* model with uncertainty analysis to represent observed data. The k-C* equation was chosen for the detention basins performance model because this model has been widely used for representing wetland treatment performances, but also can consider the performance effect for the physical dimensions of the BMP. This study will be able to support stormwater management decision makers in building detention basins of appropriate sizes with a better idea of the expected performance and risk.
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Copyright
© 2009 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
ASCE Technical Topics:
- Best Management Practices (BMPs)
- Continuum mechanics
- Detention basins
- Dynamics (solid mechanics)
- Engineering mechanics
- Environmental engineering
- Infrastructure
- Motion (dynamics)
- Municipal water
- Nonpoint pollution
- Pollution
- Solid mechanics
- Stormwater management
- Uncertainty principles
- Urban and regional development
- Urban areas
- Water (by type)
- Water and water resources
- Water management
- Water treatment
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