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http://dx.doi.org/10.17663/JWR.2013.15.1.079

Reduction Efficiency of the Stormwater Wetland from Animal Feeding-Lot  

Park, Kisoo (Dept. of Environmental Engineering, Hanseo University)
Niu, Siping (Dept. of Environmental Engineering, Hanseo University)
Kim, Youngchul (Dept. of Environmental Engineering, Hanseo University)
Publication Information
Journal of Wetlands Research / v.15, no.1, 2013 , pp. 79-90 More about this Journal
Abstract
Stormwater wetland targeted to treat the rainfall runoff from cow feeding-lot basin has been monitored from May 2010 to November 2011. Reduction efficiency estimated based on 20 rainfall event monitoring was 88%, 54%, 70%, 31%, and 64% for TSS, BOD, $COD_{Cr}$, TN, and TP, respectively. Theoretically, as rainfall depth increases, hydraulic exchange ratio has to be increased. When the exchange ratio approaches to 1 (usually design goal), TSS reduction efficiency was estimated about 55%. Uncertainty in reduction efficiency of the stormwater wetland is normally very high due to the continuous rainfall activity, its magnitude and intensity, antecedent dry days, and other natural variables which can not be controlled by experiment conductors. In this study, predominant affecting variables was found to be hydraulics caused by consecutive rainfall events having different intensity and algal growth during dry days.
Keywords
Algal growth; Rainfall activity; Reduction efficiency; Stormwater wetland;
Citations & Related Records
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