Study on the reduction of pollutant load from roads using the modified hydrodynamic vortex filtration system (HVFS)

Title
Study on the reduction of pollutant load from roads using the modified hydrodynamic vortex filtration system (HVFS)
Authors
이주영한무영김형준
Keywords
road runoff; non-point source control; best management practices (BMPs); hydrodynamic vortex filtration system (HVFS)
Issue Date
2011-04
Publisher
International journal of urban sciences
Citation
VOL 15, NO 1, 35-45
Abstract
Road runoff is a potential threat to receiving waters. The most common contaminants in road runoff contain heavy metals, inorganic salts, aromatic hydrocarbons and suspended solids that accumulate on the road surface as a non- point source. The best management practices (BMPs) are widely used for non- point source control. The design of BMPs can be modified using a different strategy to reduce pollutant load from urban road runoff. This study shows that a hydrodynamic vortex filtration system (HVFS) is one of the most suitable BMPs for catchment areas with highly polluted roads and urban structures in South Korea. Also, the modified HVFS has been used for improving efficiency. The removal rates of this study are 62% for TSS, 55% for COD, 25% for TN, 45.8% for TP and heavy metals (91% for Zn, 91.4% for Pb, 96.1% for Cu and 90.6% for Cr), respectively. This result shows that removal rate in the modified HVFS is higher than the conventional HVFS. Also, the performance of HVFS depends mainly on rainfall intensity and runoff amount through the field experiment. The application of this facility is able to contribute to the reduction of pollutant loads from roads and the improvement of the urban environment. Finally, the decision makers can consider the possibility of an eco-friendly city through the adoption of this system.
URI
http://pubs.kist.re.kr/handle/201004/41795
ISSN
1226-5934
Appears in Collections:
KIST Publication > Article
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