Particle separation in an engineered pilot scale filtration device using polymeric media to control road runoff

Title
Particle separation in an engineered pilot scale filtration device using polymeric media to control road runoff
Authors
조강우송경근안규홍
Keywords
Filter; Storm Runoff; Pilot
Issue Date
2009-10
Publisher
IWA DIPCON2009
Abstract
In this study, a field experiments were performed using a pilot-scale filtration device for urban runoff control. The device employed an engineered structure to minimize the effects of flow rate fluctuation. The removal characteristics of various pollutants in urban runoff from a expressway (Seoul, Korea) were investigated for 4 rainfall events from July to September, 2008. The initial flow velocity was up to 300 m/day, but continuously decreased to 100 m/day after treating 660 pore volumes (corresponding to 105 mm of rainfall depth). The arithmetic mean of removal efficiency during entire events was 69.2% for turbidity, 58.1% for CODCr, 81.2% for SS, 20.3% for TN, 66.3% for TP, and 32.3~74.5% for heavy metals. The effluent concentration was more strongly dependent on the influent concentration rather than on the flow velocity. Despite the efficient partitioning capability particle and particle-bound pollutants, TP and heavy metals, initial washout of nitrogen was observed. Large maintenance cost due to the media clogging would be a major limitation to application of the filtration device
URI
http://pubs.kist.re.kr/handle/201004/36013
Appears in Collections:
KIST Publication > Conference Paper
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