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http://dx.doi.org/10.17663/JWR.2015.17.1.038

The Removal of Nutrients and Heavy Metals Using Household Rain garden  

Pak, Gijung (Department of Environmental Engineering, College of Science and Technology, Korea University)
Park, Heesoo (Department of Environmental Engineering, College of Science and Technology, Korea University)
Cho, Yunchul (Department of Environmental Engineering, Daejeon University)
Kim, Sungpyo (Department of Environmental Engineering, College of Science and Technology, Korea University)
Publication Information
Journal of Wetlands Research / v.17, no.1, 2015 , pp. 38-44 More about this Journal
Abstract
In Korea, most rainfall events occur during summer which then leads to an increasing concern regarding high influx of non-point source pollutants since the pollutant loadings from these non-point sources are very significant. In particular, the first flush of roof-harvested rainfall is said to contain the most highest concentration of nutrients and heavy metals. Accordingly, it is important to develope the possible water quality management options in treating the contaminants and considering reclaimed water reuse. The rain garden could be one of suitable alternatives in addressing this issue. In this study, the development of an effective adsorption media and its application to a lab-scale rain garden was tested to evaluate the removal rate of various nutrient and organic matter (TN, TP, CODcr), and heavy metals (Cu, Cd, Pb). Results showed that carbonized peatmoss produced at higher temperature have better adsorption capacity as compared to the one produced at a lower temperature. When the carbonized peatmoss was applied as rain garden media, the highest removal of TN, TP, and CODcr was observed compared to no carbonized peatmoss applied rain garden. Therefore, this study showed that the carbonized peatmoss would be effectively applied to the rain garden for removing nutrients and heavy metals from roof-harvested rainwater.
Keywords
First Flush; Filter Media; Initial Rainfall; Peatmoss; Rain Garden;
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Times Cited By KSCI : 5  (Citation Analysis)
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