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Assessment of Performances of Low Impact Development (LID) Facilities with Vegetation
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  • Journal title : Ecology and Resilient Infrastructure
  • Volume 3, Issue 2,  2016, pp.100-109
  • Publisher : Korean Society of Ecology and Infrastructure Engineering
  • DOI : 10.17820/eri.2016.3.2.100
 Title & Authors
Assessment of Performances of Low Impact Development (LID) Facilities with Vegetation
Hong, Jung Sun; Kim, Lee-Hyung;
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 Abstract
Low impact development (LID) facilities are established for the purpose of restoring the natural hydrologic cycle as well as the removal of pollutants from stormwater runoff. Improved efficiency of LID facilities can be obtained through the optimized interaction of their major components (i.e., plant, soil, filter media, microorganisms, etc.). Therefore, this study was performed to evaluate the performances of LID facilities in terms of runoff and pollutant reduction and also to provide an optimal maintenance method. The monitoring was conducted on four LID technologies (e.g., bioretention, small wetlands, rain garden and tree box filter). The optimal SA/CA (facility surface area / catchment area) ratio for runoff reduction greater than 40% is determined to be 1 - 5%. Since runoff reduction affects the pollutant removal efficiency in LID facilities, SA/CA ratio is derived as an important factor in designing LID facilities. The LID facilities that are found to be effective in reducing stormwater runoff are in the following order: rain garden > tree box filter > bioretention> small wetland. Meanwhile, in terms of removal of particulate matter (TSS), the effectiveness of the facilities are in the following order: rain garden > tree box filter > small wetland > bioretention; rain gardens > tree box filter > bioretention > small wetland were determined for the removal of organic matter (COD, TOC), nutrients (TN, TP) and heavy metals (Cu, Pb, Cd, Zn). These results can be used as an important material for the design of LID facilities in runoff volume and pollutant reduction.
 Keywords
Low impact development (LID);Nonpoint pollutant source;Pollutant reduction;Runoff reduction;Vegetation;
 Language
Korean
 Cited by
1.
저영향개발과 그린 해법으로 지속가능한 도시 창출,김이호;

Ecology and Resilient Infrastructure, 2016. vol.3. 2, pp.77-79 crossref(new window)
1.
Creating a Sustainable City with Low Impact Development and Green Solutions, Ecology and Resilient Infrastructure, 2016, 3, 2, 77  crossref(new windwow)
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