Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Environmental Restoration and Water Quality Management Modeling of Coastal Area by Reuse of Treated Wastewater

하수처리수 재이용에 따른 하천과 해역의 환경복원 및 수질관리 모델링

  • Lee, Dae-In (The Fisheries Science Institute, Chonnam National University) ;
  • Yoon, Yang-Ho (Faculty of Marine Technology Chonnanm National University) ;
  • Park, Il-Heum (Faculty of Marine Technology Chonnanm National University) ;
  • Lee, Gyu-Hyong (Faculty of Marine Technology Chonnanm National University) ;
  • Cho, Hyeon-Seo (Faculty of Marine Technology Chonnanm National University)
  • 이대인 (전남대학교 수산과학연구소) ;
  • 윤양호 (전남대학교 해양기술학부) ;
  • 박일흠 (전남대학교 해양기술학부) ;
  • 이규형 (전남대학교 해양기술학부) ;
  • 조현서 (전남대학교 해양기술학부)
  • Published : 2007.04.30
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Abstract

This study estimated response of water duality and pollutant behavior according to the discharge and reuse of treated wastewater by three-dimensional eco-hydrodynamic model, and suggest plan that water quality management and environmental restoration in the coastal area including urban stream of Yeosu, Korea. Dispersions of low-saline water and COD by treated wastewater loads (design facility capacity, about $110,000m^3/d$) were very limited in near of effluent site. Nutrients, however, increase compared to the other water quality factors, especially total nitrogen was very sensitive to input loads. When reuse some of treated wastewater to Yeondeung stream, nitrogen was big influence on estuarine water quality. Although current characteristics of treated wastewater such as discharge and water quality were negligible to the change of marine environment, effluent concentration of COD, TN and TP, especially 40% of TN, are reduced within the allowable pollutant loads for satisfy environmental capacity and recommended water duality criteria. Also, controls of input point/non-point sources to Yeondeung stream and base concentration of pollutants in coastal sea itself are very necessary.

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References

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