Journal of Wetlands Research (한국습지학회지)

Korean Wetlands Society (한국습지학회)
권호 표지
DOI QR코드

DOI QR Code

A Case Study Stormwater Treatment by Channel-Type Wetland Constructed on the Flood Plane of the Stream

하천 고수부지에 설치한 수로형 인공습지에 의한 강우 유출수 처리에 관한 연구

  • Kim, Piljoo (Water Environment Research Center of ChungNam Institute) ;
  • Han, Euilyung (Dept. of Environmental Engineering, Hanseo University) ;
  • Kim, Youngchul (Dept. of Environmental Engineering, Hanseo University)
  • 김필주 (충남연구원 물환경연구센터) ;
  • 한의령 (한서대학교 환경공학과) ;
  • 김영철 (한서대학교 환경공학과)
  • Received : 2016.12.15
  • Accepted : 2017.02.02
  • Published : 2017.02.28
Download PDF
⟨ Previous Next ⟩

Abstract

Researches about NPS(Non-point Pollution Source) reduction have been widely carried out in recent years. A pilot channel-type constructed wetland (wet swale) was constructed in Rongyin area to treat stormwater generated from a green house agro-land of 22.7 ha. From 2006 to 2008, monitoring was conducted to evaluate its performance on the removal effect for organic pollutants as well as nutrients. Totally, sampling trips of 17 rainfall events were made and they covered most types of storm events in Korea. The channel-type constructed wetland have average removal efficiencies of 78.3~92.0%, 56.4~66.1%, 28.2~45.5% and 50.6~66.4% for SS, COD, TN and TP, respectively. According to four methods for estimating the removal efficiency, the average efficiencies of TSS, COD, TN and TP are 86.0%, 60.1%, 30.1% and 53.5%, respectively. From 2006 to 2008, annual efficiency improved due to infiltration potential increase. It was found that most of the pollutants removed in this channel type of wetland was particulate solids bound pollutants, which is assumed fact that it lacks of physico-chemical treatment conditions which are commonly observed in the retention type of constructed wetlands.

국내에서는 비점오염 저감 및 LID 시설에 대한 연구가 활발히 진행되고 있다. 본 논문에서는 수로형 인공습지에 의한 강우 유출수 처리에 대한 연구를 시행하였다. 비점오염저감시설 주변 비닐하우스 지역의 면적은 22.7ha이며 강우 시 비닐하우스지대를 관통하면서 유출되는 비점오염 오염물질을 처리한다. 2006년부터 2008년까지 총 17번의 모니터링을 시행하였으며 다양한 강우를 대상으로 모니터링이 수행되었다. 17회의 모니터링을 통해 얻어진 TSS의 저감효율 범위는 78.3~92.0%로 나타났으며, BOD의 경우 49.5~63.4%, COD의 경우 56.4~66.1%, TN의 경우 28.2~45.5%, TP의 경우 35.6~45.3%로 나타났다. 총 17회의 모니터링 저감효율 범위에 대한 평균값을 산정한 결과, TSS의 경우 86.0%로 나타났으며, BOD의 경우 51.6%, COD의 경우 60.1%, TN의 경우 30.1% 그리고 TP의 경우 53.5%로 나타났다. 연구대상 식생수로에서 제거되는 오염물질은 다른 저류형 습지와 달리 주로 입자상 오염물질이었는데 그 이유는 기하학적 형태 및 구조적으로 체류시간이 짧고 유기물질과 질소 등 용존성 유기물질의 제거에 기여하는 생물화학적 처리환경의 조성에 한계가 있기 때문이다.

Keywords

References

  1. American Public Health Association (APHA). (1998). Standard methods for the examination of water and wastewater, APHA, Washington, DC
  2. Athanas, C. and C. Stevenson. (1991). The use of Artificial Wetlands in Treating Stormwater Runoff, Prepared for the Maryland Sediment and stormwater Administration, Maryland, pp. 66.
  3. Gavin, F.B., Carsten, M., Mohammad, S.F., Suh, J.Y. (2004). Efficiency of a constructed wetland in removing contaminants from stormwater, Wetlands, 24(2), pp. 459-466. https://doi.org/10.1672/0277-5212(2004)024[0459:EOACWI]2.0.CO;2
  4. Kim P. (2009). Treatment of Stormwater form green House Agro-Land by Channel-Type Constructed Wetland. Master's Thesis, Hanseo University, Seosan, Korea. [Korean Literature]
  5. Lee K., Lee D., Lee S., Kim J. (1999). Change in Agricultural Irrigation Water Quality in Mankyeong River, Korean J. of Environmental Agriculture, pp. 6-7. [Korean Literature]
  6. Ministry of Environment (MOE). (1998). Certified Analytical Methods of Water Quality. [Korean Literature]
  7. Ministry of Environment (MOE) and Environment Management Corporation. (2008). 3rd Report: Monitoring and Maintenance Studies of the Stormwater BMPs. [Korean Literature]
  8. Ministry of Environment (MOE) and Environment Management Corporation. (2011). Final Report: Monitoring and Maintenance Studies of the Stormwater BMPs. [Korean Literature]
  9. Ministry of Environment (MOE) (2016). Design and Maintenance Guidelines of the Stormwater BMPs, pp. 86-110. [Korean Literature]
  10. Park K. (2013). Reduction Efficiency and Design Considerations in a Stormwater Wetland Master's Thesis, Hanseo University, Seosan, Korea. [Korean Literature]
  11. Park K., Niu S., and Kim Y. (2013). Reduction Efficiency of the Stormwater Wetland from Animal Feeding-Lot, J. of Korea Wetlands Research, 15(1), pp. 79-90. [Korean Literature] https://doi.org/10.17663/JWR.2013.15.1.079
  12. Park K., Kang H., and Kim Y. (2016). Evaluation of the Design and Performance of Woodchip-filled Infiltration Trench Treating Stormwater from Highway, J. of Korea Wetlands Research, 18(2), pp. 183-193. [Korean Literature] https://doi.org/10.17663/JWR.2016.18.2.183
  13. William J. M. and James G. G. (2000). The value of wetlands: importance of scale and landscape setting. Ecological Economics, 35(200): 25-33. https://doi.org/10.1016/S0921-8009(00)00165-8
  14. Yi Q., Lu W., Yu J., Kim Y. (2009). Characteristics of nutrient retention in a stormwater wetland during dry and wet days, Water, Water Science & Technology, 61(6), pp. 1535-1545.