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Mixing and residence times of stormwater runoff in a detection system

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Abstract

Five tracer runs were performed on a detention pond and wetlands system to determine mixing and residence times in the system. The data indicate that at low discharges and with large amounts of storage, the pond is moderately mixed with residence times not much less than the theoretical maximum possible under complete mixing. At higher discharges and with less storage in the pond, short-circuiting occurs, reducing the amount of mixing in the pond and appreciably reducing the residence times. The time between pond outlet peak concentrations and wetlands outlet peak concentrations indicate that in the wetlands, mixing increases with decreasing discharge and increasing storage.

Additional Publication Details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Title:
Mixing and residence times of stormwater runoff in a detection system
ISBN:
0872626954
Year Published:
1989
Language:
English
Publisher:
Publ by ASCE
Publisher location:
New York, NY, United States
First page:
164
Last page:
179
Number of Pages:
16
Conference Title:
Proceedings of an Engineering Foundation Conference on Current Practice and Design Criteria for Urban Quality Control
Conference Location:
Potosi, MO, USA
Conference Date:
10 July 1988 through 15 July 1988