Storm Runoff Detention for Pollutant Removal
Publication: Journal of Environmental Engineering
Volume 118, Issue 3
Abstract
A design aid is presented to size detention basins and outlet facilities for removal of particulate pollutants from storm runoff. The single‐design‐event approach is employed. The basins that are sized using the proposed method detain the runoff for a specified period of time to achieve the desired level of treatment. At the same time, the basins empty within a specified time period before the next design runoff event occurs. The method is based on the reservoir‐routing technique, which couples the hydrologic storage equation with an expression describing the hydraulics of the outlet structure. Orifice‐ and weir‐type outlet structures are considered. The equations are written in dimensionless form and solved using a finite‐difference computer model. The numerical results obtained in terms of the governing dimensionless parameters represent predetermined solutions to the reservoir‐routing problem. The results are generalized based on the concept of hydrologic similarity, and presented in chart form. As illustrated through a sample application, these pond charts are useful in determining the stage‐storage relationship for the basin, the size of the outlet structure, and the required storage volume.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 118 • Issue 3 • May 1992
Pages: 380 - 389
Copyright
Copyright © 1992 ASCE.
History
Published online: May 1, 1992
Published in print: May 1992
Authors
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