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http://dx.doi.org/10.17663/JWR.2022.24.1.59

Research on Design Capacity Evaluation of Low Impact Development according to Design Criteria  

Im, Jiyeol (Department of Urban & Environmental Research, Go-Yang Research Institute)
Gil, Kyungik (Department of Civil Engineering, Seoul National University of Science and Technology)
Publication Information
Journal of Wetlands Research / v.24, no.1, 2022 , pp. 59-67 More about this Journal
Abstract
The interest in LID facilities is increasing worldwide for recovery of natural water cycle system to destroy by urbanization. However, problems are raised when installation of LID because comprehensive analysis about design capacity adequacy of LID facilities was not conducted completely. In this research, removal efficiency and design volume adequacy of LID facilities were analyzed based on rainfall monitoring data in four LID facilities(Vegetated Swale, Vegetative Filter Strip, Bio-Retention and Permeable Pavement). As a result, group of LID facility designed on WQV was shown higher flow(37%) and pollutants(TSS, BOD, TN and TP) removal efficiencies(20 ~ 37%) than group of LID facility designed on WQF. SA/CA graph was drawn for evaluation of design volume adequacy based on rainfall monitoring data. In this SA/CA graph, coefficient of determination show over 0.5 in all parameter, especially, Flow and TP were show over 0.95. And, 'SA/CA & L/CA' graph considering difference of structure mechanism in LID facility suggested in this research was confirmed that improved coefficient of determination in flow, TSS and TP than SA/CA graph. According to this research results, feasibility of applying 'SA/CA & L/CA' graph for evaluation of design volume adequacy in LID facility, and it is necessary to follow up research for generalization and normalization.
Keywords
Non-point pollution source; Green Infrastructure; LID; Design volume criteria;
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Times Cited By KSCI : 6  (Citation Analysis)
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