• 제목/요약/키워드: Yeong river

검색결과 355건 처리시간 0.026초

MBOD법에 의한 하천의 수질평가 -영산강과 섬진강을 중심으로- (Evaluation of River Water Quality by MBOD Method)

  • 김명숙
    • 한국환경보건학회지
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    • 제9권1호
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    • pp.49-62
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    • 1983
  • Evaluation of water quality of Yeong San river and Seomjin river by using of newly simplified MBOD method was performed. Of course, thought that there is some differences between nutrient demands of heterotrophic bacteria and those of Algae which obtain it by photosynthesis, but it has little influence on evaluation of Algae Growth potential. The result of this study were as follows: 1) In both river, the value of Chemical analysis and MBOD method of inorganic salts reveals as nearly same result. 2) Though organic pollution of Seomjin river is less than that of Yeongsan but inorganic contamination is somewhat advanced BOD 2.8 ppm. and MBOD 340 ppm. in Seomjin river but BOD 22 ppm. and MBOD 480 ppm. in Yeongsan river. 3) Both river have tendency to reveal higher Nitrogen value is MBOD=MBOD -P

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하구밀도류와 취송류가 영일만 해수유동에 미치는 영향 (Numerical Prediction of Tidal Current due to the Density and Wind-driven Current in Yeong-il Bay)

  • 윤한삼;이인철;류청로
    • 한국해양공학회지
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    • 제18권5호
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    • pp.22-28
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    • 2004
  • This study constructed a 3D real-time numerical model that predicts the water quality and movement characteristics of the inner bay, considering the characteristics of the wind-driven current and density current in estuaries, generated by the river discharge from the Hyeong-san river and oceanic water of the Eastern sea. The numerical model successfully calculated the seawater circulation current of Yeong-il Bay, using the input conditions oj the real-time tidal current, river discharge, and weather conditions during March 2001. This study also observed the wind-driven current and density current in estuaries that are effected by the seawater circulation pattern of the inner bay. We investigated and analyzed each impact factor, and its relationship to the water quality of Yeong-il bay.