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침투 및 저류 기능을 가진 물 순환 시설의 효과 평가

Performance Evaluation of Water Circulation Facilities with Infiltration and Retention Functions

  • 홍정선 (공주대학교 건설환경공학부) ;
  • 말라 (공주대학교 건설환경공학부) ;
  • 김이호 (한국건설기술연구원) ;
  • 이선하 (공주대학교 건설환경공학부) ;
  • 김이형 (공주대학교 건설환경공학부)
  • Hong, Jung Sun (Department of Civil and Environmental Engineering, Kongju National University) ;
  • Maniquiz-Redillas, Marla C. (Department of Civil and Environmental Engineering, Kongju National University) ;
  • Kim, Ree Ho (Korea Institute of Civil Engineering and Building Technology) ;
  • Lee, Seon Ha (Department of Civil and Environmental Engineering, Kongju National University) ;
  • Kim, Lee-Hyung (Department of Civil and Environmental Engineering, Kongju National University)
  • 투고 : 2015.12.01
  • 심사 : 2015.12.20
  • 발행 : 2015.12.30

초록

서울시는 2014년 기존의 서울시 물순환 조례에 저영향개발 (low impact development, LID)을 포함하는 조례개정을 통해 빗물관리의 토대를 마련하였다. 새롭게 개정된 조례에서는 2050년까지 연 강수량의 약 630 mm를 저류 및 침투시킬 것을 계획하고 있으며, 침투, 저류 및 식생을 활용하는 빗물관리시스템을 도입하여 관리하고자 한다. 저영향개발기법은 개발사업에서 생태, 물순환, 환경 등의 목표를 달성하고자 할 때 적용할 수 있는 중요한 기법이다. 본 연구에서는 서울시에 적용한 침투형 빗물받이, 생태저류형 배수로 및 투수성 포장 등의 다양한 물순환 시설 (LID)의 효과를 평가하기 위하여 수행되었다. 모니터링 결과 다른 시설에 비하여 투수성 포장에서 강우유출 저감효과가 가장 높게 나타났으나, 공극막힘현상을 줄이기 위한 방안이 설계에 반영되어야 하는 것으로 나타났다. 비점오염물질 유출저감의 경우 자동차 운행정도에 의한 오염물질 축적이 큰 영향을 끼친 침투형 빗물받이, 물리 및 생물학적 기작의 영향을 받은 생태저류형 배수로에서 높게 분석되었다. 다양한 목적으로의 저영향개발 기법 적용은 물순환 효과뿐만 아니라 환경오염저감, 생태복원, 심미적 효과 등의 다양한 효과를 보이는 것으로 나타났다.

In 2014, the city of Seoul revised the ordinance regarding water-cycle restoration in the Seoul Metropolitan areas by incorporating the 'Low Impact Development (LID)' policy. The new ordinance plan will utilize 630 mm or almost 45 to 50% of annual rainfall until 2050 by means of providing a rainwater management system consisting of infiltration, retention and vegetation. The LID is believed to be the key to achieving the target requirements, specifically in development projects. This research was performed to evaluate the stormwater runoff and pollutant reduction performance of three different LID facilities (water circulation facilities) including an infiltration inlet, bioretention swale, and permeable pavement constructed in Seoul City. Results show that among the water circulation facilities, the permeable pavement achieved the highest runoff reduction as it was able to entirely capture and infiltrate the runoff to the ground. However, in order to attain a long-term performance it is necessary to manage the accumulated sediment and trapped pollutants in the landscape areas through other water circulation techniques such as through soil erosion control. In terms of pollutant reduction capability, the infiltration inlet performed well since it was applied in highly polluted areas. The bioretention facility integrating the physico-chemical and biological mechanisms of soil, microorganisms and plants were able to also achieve a high runoff and pollutant reduction. The water circulation facilities provided not only benefits for water circulation but also various other benefits such as pollutant reduction, ecological restoration, and aesthetic functions.

키워드

참고문헌

  1. Choi, J., Kim, S., Lee, S., Nam, G., Cho, H. and Kim, L.-H. 2013. Development hybrid filter system for applicable on various rainfall. Journal of Wetlands Research 15: 535-541. (in Korean) https://doi.org/10.17663/JWR.2013.15.4.535
  2. Dow, C.L. and Dewalle, D.R. 2000. Trends in evaporation and Bowen ratio on urbanizing watersheds in Eastern United States. Water Resources Research 36: 1835-1843. https://doi.org/10.1029/2000WR900062
  3. Hewitt, C.N. and Rashed, M.B. 1992. Removal rates of selected pollutants in the runoff waters from a major rural highway. Water Research 26: 311-319. https://doi.org/10.1016/0043-1354(92)90028-3
  4. Kim, C., Choi, J., Lee, J.M., Cho, H. and Kim, L.-H. 2014. Characteristics of stormwater runoff with respect to pavement types. Journal of Wetlands Research 16: 423-429. (in Korean)
  5. Kim, L.H. and Kang, J.H. 2004. Determination of event mean concentrations and pollutant loadings in highway storm runoff. Journal of Korean Society on Water Quality 20: 631-640. (in Korean)
  6. Moon, S., Hong, J., Choi, J., Yu, G. and Kim, L.H. 2015. Evaluation on the adsorption and desorption capabilities of filter media applied to the nonpoint source pollutant management facilities. Journal of Wetlands Research 17: 228-236. (in Korean) https://doi.org/10.17663/JWR.2015.17.3.228
  7. NIER. 2014. A Research on Control Targets and Strategies for Impervious Surface Management. National Institute of Environmental Research, Incheon, Korea. (in Korean)
  8. Perdikaki, K. and Mason, C.F. 1999. Impact of road run-off on receiving streams in eastern England. Water Research 33: 1627-1633. https://doi.org/10.1016/S0043-1354(98)00396-0
  9. Son, H.G., Lee, E.J., Lee, S.Y. and Kim, L.H. 2008. Determination of nonpoint pollutant unit loads in toll-gate of highway. Journal of Wetlands Research 10: 69-75. (in Korean)
  10. UN DESA. 2014. World Urbanization Prospects, the 2014 revision. United Nations Department of Economic and Social Affairs, New York, USA.

피인용 문헌

  1. Assessment of Performances of Low Impact Development (LID) Facilities with Vegetation vol.3, pp.2, 2016, https://doi.org/10.17820/eri.2016.3.2.100
  2. 도로변 및 LID 시설 내 식생종류별 식물체 내 건물률 및 영양염류 함량 변화 vol.23, pp.1, 2021, https://doi.org/10.17663/jwr.2021.23.1.35