NPS-WET 모형을 이용한 인공습지의 수질정화효과 분석

Analysis of Water-quality Improvement Efficiency of Constructed Wetland Using NPS-WET Model

  • 발행 : 2012.03.30

초록

A combination system of catch canal and constructed wetland was designed and suggested to improve water quality in gagricultural region of lower Dong-jin river basin. In order to evaluate an water quality improvement efficiency of the designed combination system, the NPS-WET model was applied in this study. Simulation result of the NPS-WET shown that the nutrient load removal rate of constructed wetland was BOD, T-N, T-P and SS was 30.7~39.0%, 46~60%, 40.7~57.0% and 68.2~74.7%, respectively. Nutrients reduction of constructed wetland was higher in growing season than winter season because vital activity of microorganism, macrophyte and algae was augmented with high air and water temperature. Effluents from constructed wetland can affect water-quality of catch canal drains, especially, water-quality on junction point to Dong-jin river. Water-quality improvement in low-flowed catch canal (Un-san) was more significant than in high-flowed catch canal (Won-pyeong). In conclusion, a feasible design of constructed wetland is necessary to treat large quantity of receiving water. The NPS-WET is useful tool for assessing water-quality improvement efficiency using constructed wetland.

키워드

참고문헌

  1. 윤춘경, 신아현, 정광욱, 장재호(2007). BASINS/WinHSPF를 이용한 남한강 상류유역의 비점오염원 저감효율평가, 수질보전 한국물환경학회지, 23(6), pp. 951-960.
  2. 이은주, 고석오, 강희만, 이주광, 이병식, 임경호, 김이형 (2006). 포장지역에서의 강우사상별 EMC 산정 및 단순 샘플농도와의 비교, 수질보전 한국물환경학회지, 22(1), pp. 104-109.
  3. 정부(관계부처)합동(2004). 4대강 물관리종합대책 추진강화를 위한 4대강 비점오염원관리 종합대책, pp. 7.
  4. 한국농어촌공사 농어촌연구원(2007). 인공습지에 의한 수질 개선 기법개발, pp. 313-373.
  5. American Society of Civil Engineers (ASCE) (1993). Criteria for Evaluation of Watershed Models, by ASCE Task Committee on Definition of Criteria for Evaluation of Watershed Models of the Watershed Management Committee, Irrigaion Drainage Engineering, 119(3), pp. 429-442. https://doi.org/10.1061/(ASCE)0733-9437(1993)119:3(429)
  6. Buchberger, S. G. and Shaw, G. B. (1995). An Approach Toward Rational Design of Constructed Wetlands for Wastewater Treatment, Ecological Engineering, 4, pp. 249-275. https://doi.org/10.1016/0925-8574(94)00053-8
  7. Donigian, Jr., A. S. (2000). HSPF Training Workshop Handbook and CD. Lecture #19. Calibraion and Verification Issures, Slide #L19-22 EPA Headquarters, Washington Information Center, 10-14 January, 2000. Presented and prepared for US EPA, Office of Science and Technology, Washington, D.C, pp. 19-22.
  8. Jorgensen, S. E., Hoffmann, C. C., and Mitsch, W. J. (1988). Modelling Nutrient Retention by a Reedswamp and Wet Meadow in Denmark. In: W. J. Mitsch, M. Straskraba, and S. E. Jorgensen (eds.), Wetland Modelling, Elsevier, New York, pp. 133-151.
  9. Kadlec, R. H. and Hammer, D. E. (1988). Modeling Nutrient Behavior in Wetlands, Ecological Modelling, 40, pp. 37-66. https://doi.org/10.1016/0304-3800(88)90101-9
  10. Kadlec, R. H. and Knight, R. L. (1996). Treatment Wetlands, Lewis Publishers, Boca Raton, FL, USA, pp. 267-348.
  11. King, A. C., Mitchell, C. A., and Howes, T. (1997). Hydraulic Tracer Studies in a Pilot Scale Subsurface Flow Constructed Wetland, Water Science and Technology, 35(5), pp. 189-196. https://doi.org/10.1016/S0273-1223(97)00068-1
  12. Mitsch, W. J. and Jorgensen, S. E. (1989). Ecological Engineering, Wiley, New York, pp. 114-132.
  13. Novotny, V. and Olem, H. (1994). Water Quality-Prevention, Identification, and Management of Diffuse Pollution, Van Nostrand Reinhold, New York, pp. 25-47.
  14. U.S. EPA. (1989). Nonpoint Sources: Agenda for the Future. U.S. Environmental Protection Agency, Office of Water, Washington, pp. 2-16.
  15. U.S. EPA. (2005). National Management Measures to Control Non-point Source Pollution from Urban Areas, pp. 0.1-0.35.
  16. Water Environment Federation (WEF) (1998). Biological and Chemical Systems for Nutrient Removal, Special Publication, Alexandria, Virginia, pp. 214-258.