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Cho, Kyung Hwa
Water-Environmental Informatics Lab (WEIL)
Research Interests
  • Water Quality Monitoring and Modeling, Water Treatment Process Modeling

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Optimizing low impact development (LID) for stormwater runoff treatment in urban area, Korea: Experimental and modeling approach

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Title
Optimizing low impact development (LID) for stormwater runoff treatment in urban area, Korea: Experimental and modeling approach
Author
Baek, Sang-SooChoi, Dong-HoJung, Jae-WoonLee, Hyung-JinLee, HyukYoon, Kwang-SikCho, Kyung Hwa
Issue Date
2015-12
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
WATER RESEARCH, v.86, pp.122 - 131
Abstract
Currently, continued urbanization and development result in an increase of impervious areas and surface runoff including pollutants. Also one of the greatest issues in pollutant emissions is the first flush effect (FFE), which implies a greater discharge rate of pollutant mass in the early part in the storm. Low impact development (LID) practices have been mentioned as a promising strategy to control urban stormwater runoff and pollution in the urban ecosystem. However, this requires many experimental and modeling efforts to test LID characteristics and propose an adequate guideline for optimizing LID management. In this study, we propose a novel methodology to optimize the sizes of different types of LID by conducting intensive stormwater monitoring and numerical modeling in a commercial site in Korea. The methodology proposed optimizes LID size in an attempt to moderate FFE on a receiving waterbody. Thereby, the main objective of the optimization is to minimize mass first flush (MFF), which is an indicator for quantifying FFE. The optimal sizes of 6 different LIDs ranged from 1.2 mm to 3.0 mm in terms of runoff depths, which significantly moderate the FFE. We hope that the new proposed methodology can be instructive for establishing LID strategies to mitigate FFE.
URI
https://scholarworks.unist.ac.kr/handle/201301/17969
URL
http://www.sciencedirect.com/science/article/pii/S0043135415301895
DOI
10.1016/j.watres.2015.08.038
ISSN
0043-1354
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UEE_Journal Papers
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