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Journal of the Korean Society of Hazard Mitigation 2015;15(5):267-273.
Published online October 31, 2015.
공업지역의 부유물질 관리를 위한 생태저류지 설계방안
최보경, 이정훈, 심현준, 이진희, 조경화, 김상단
Bio-Retentions Design Practice for Suspended Solids Management at Industrial Areas
Bogyeong Choe, Jeonghoon Lee, Hyunjun Sim, Jinhee Lee, Kyunghwa Cho, Sangdan Kim
Abstract
In this study, a design method of a bio-retention pond for reducing suspended solids at an industrial area is proposed. After simulating suspended solid loads at a study drainage catchment using SWMM calibrated with the unit load estimation method which is recently suggested by the National Institute of Environmental Research, the non-point pollutant reduction efficiency with respect to the bioretention capacity is quantified. Based on various simulation results, the stormwater captured ratio curve and the average annual fraction of suspended solid loads controlled by a bio-retention pond are derived. Using the regression analysis, coefficients of the formula for the average annual captured fraction of suspended solid loads, which is missing in the Korean TMDL technical guide, is proposed.
Key Words: Bio-retention pond; SS; SWMM; TMDL; SWMM
요지
본 연구에서는 공업지역의 부유물질 관리를 위한 생태저류지 설계 방안을 제안한다. 최근 국립환경과학원에서 제안하고 있는 원단위 추정 방법을 기반으로 검보정 된 SWMM을 이용하여 처리대상구역의 부유물질 배출부하량을 모의한 뒤, 생태저류지의 설계용량에 따른 비점오염 저감효과를 정량화한다. 다양한 모의결과를 바탕으로 생태저류지 설계용량에 따른 강우유출수 처리비와 부유물질 삭감대 상부하비를 유도하며, 회귀분석 방법을 통해 수질오염총량관리기술지침에 누락되어있는 부유물질에 대한 삭감대상부하비 매개변수를 추정한다.
핵심용어: 생태저류지; 부유물질; 수질오염총량관리
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