Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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Effect of Salinity on Dissolved Oxygen Characteristics in an Ejector-Aerator

이젝터-폭기 시스템의 용존산소특성에 미치는 염도의 영향

  • 양희천 (전남대학교 기계자동차공학부) ;
  • 박상규 (전남대학교 기계자동차공학부)
  • Received : 2011.06.22
  • Accepted : 2011.07.16
  • Published : 2011.07.31
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Abstract

Dissolved oxygen (DO) refers to the volume of oxygen that is contained in water, and is a major indicator of water quality. The objective of this paper was to investigate the effect of salinity on the dissolved oxygen characteristics in an ejector-aerator. An experimental aeration system composed of a motor-pump, an ejector, a motor-blower, a set of aeration and recirculation tank and a control panel. The dissolved oxygen concentrations decreased with the water salinity. The volumetric mass transfer coefficient increased with increasing the water salinity.

용존산소는 물속에 용해되어 있는 산소량으로 수질의 지표가 된다. 본 논문은 이젝터-폭기 시스템의 용존산소특성에 미치는 염도의 영향에 대한 실험적 연구를 목적으로 한다. 이젝터-폭기 시스템은 모터-펌프, 이젝터, 모터-블로어, 폭기 및 순환수조, 제어판넬 등으로 구성된다. 처리수의 용존산소량은 염도가 증가함에 따라 감소하였으며, 산소전달율의 정량적인 변수인 총괄 물질전달계수는 염도가 증가함에 따라 증가하였다.

Keywords

References

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