Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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A Pilot-Scale Study of Multiple Stage of Constructed Wetland Treatment System and Modeling for Nutrient Removal

Pilot 규모 연속배열형 인공습지의 영양염류 제거효능 규명 및 평가모델 연구

  • Choi, Seung Il (Water Environment Center, Environment Division, Korea Institute of Science and Technology) ;
  • Iamchaturapatr, Janjit (Water Environment Center, Environment Division, Korea Institute of Science and Technology) ;
  • Rhee, Jae Seong (Water Environment Center, Environment Division, Korea Institute of Science and Technology)
  • 최승일 (한국과학기술연구원 환경본부 물환경센터) ;
  • ;
  • 이재성 (한국과학기술연구원 환경본부 물환경센터)
  • Received : 2010.04.26
  • Accepted : 2010.07.23
  • Published : 2010.09.30
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Abstract

A pilot study was performed to examine the feasibility of multiple stage of constructed wetland (CW) for nutrient removal. The system is composed of six wetland cells connected with water-ways. The hydraulic of wetland cells is designed as free water surface flow. The treatment capacity was $25m^3d^{-1}$ at HRT of about one day for each cell. The magnitude of nutrient removal was related with the length of wetlands and plant density. Total N and P removal rates were 1353 and $246mg\;m^{-2}d^{-1}$ respectively. The pilot-scale reactor was model as continuous flow system containing contribution of CSTR and PFR typed-reactors. The $k-C^*$ model equation was applied to predict N and P reduction. The result indicated the equation was well guided to estimate reduction of $NO_3-N$ and $PO_4-P$.

Keywords

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