Field Study on the Unit Type Infiltration and Storage System for the Urban Flood Resilience
- Field Study on the Unit Type Infiltration and Storage System for the Urban Flood Resilience
- 이주영; 정준모; 김도형
- 비점오염원; 녹색기술; 도시홍수관리; 유닛타입침투저류시설; 강우유출; Green infrastructure; urban stormwater management; unit type infiltration-stora ge system; rainfall-runoff; non-point sourcesupport
- Issue Date
- GRI Review
- VOL 14, NO 1, 305-318
- The purpose of this paper is to examine the resource that the city of Seoul is devoting to “green
infrastructure”and analyze the Gangdong-Gu experience with alternative urban stormwater
management techniques. The unit type infiltration-storage system has been a leader in the
implementation of green infrastructure approaches to urban stormwater management. To achieve the
effective urban stormwater management, this paper presents the experimental performance in the field.
The infiltration rate of this system was evaluated as 62 % of total storage (40 tons) for 6 days after
rainfall-runoff. For reducing non-point source, the removal rates were evaluated as 95 % TSS and 95%
Turbidity. Also, the removal rates of heavy metals were 79% Pb, 68% Cu, 60% Zn, and 50% Cd,
respectively. As a result, this paper provide the effective technology to green stormwater approaches
and gives the economic methodology used to guide decisions about green infrastructure using.
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