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http://dx.doi.org/10.17663/JWR.2016.18.2.194

Cost-effective assessment of filter media for treating stormwater runoff in LID facilities  

Lee, Soyoung (Department of Civil and Environmental Engineering, Kongju National University)
Choi, Jiyeon (Environmental research, National institute of Environmental Research)
Hong, Jungsun (Department of Civil and Environmental Engineering, Kongju National University)
Choi, Hyeseon (Department of Civil and Environmental Engineering, Kongju National University)
Kim, Lee-Hyung (Department of Civil and Environmental Engineering, Kongju National University)
Publication Information
Journal of Wetlands Research / v.18, no.2, 2016 , pp. 194-200 More about this Journal
Abstract
The impervious surface rate increased by urbanization causes various problems on the environment such as water cycle distortion, heat island effect, and non-point pollutant discharges. The Low Impact Development (LID) techniques are significantly considered as an important tool for stormwater management in urban areas and development projects. The main mechanisms of LID technologies are hydrological and environmental pollution reduction among soils, media, microorganisms, and plants. Especially, the media provides important functions on permeability and retention rate of stormwater runoff in LID facilities. Therefore, this research was performed to assess the pollutant removal efficiency for different types of media such as zeolite, wood chip, bottom ash, and bio-ceramic. All media show high pollutant removal efficiency of more than 60% for particulate materials and heavy metals. Double layered media is more effective in reducing heavy metals by providing diverse sizes of micro-pores and macro-pores compared to the single layered media. The results recommend the use of different sizes of media application is more cost-effective in LID than a single size of media. Furthermore, soluble proportion of total heavy metal in the stormwater is an important component in proper media selection and arrangement.
Keywords
low impact development(LID); media assessment; heavy metals; stormwater; urbanization;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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