Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Modeling of Chlorine Disinfectant Decay in Seawater

해수에서의 소독제 거동 예측 모델에 관한 연구

  • Han, Jihee (Department of Civil and Environmental Engineering, Kookmin University) ;
  • Sohn, Jinsik (Department of Civil and Environmental Engineering, Kookmin University)
  • 한지희 (국민대학교 건설시스템공학부) ;
  • 손진식 (국민대학교 건설시스템공학부)
  • Received : 2015.11.09
  • Accepted : 2016.01.08
  • Published : 2016.02.28
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Abstract

Disinfectant/oxidation process is a crucial process in water treatment for supplying safe drinking water. Chlorination is still widely used for water treatment area due to its effectiveness on microbial inactivation and economic feasibility. Recently, disinfection concern in marine environment is increasing, for example, movement of hazardous marine organism due to ballast water, marine environmental degradation due to power plant cooling water discharge, and increase of the amount of disinfectant in the offshore plant. It is needed to conduct the assessment of disinfectant behavior and the development of disinfectant prediction model in seawater. The appropriate prediction model for disinfectant behavior is not yet provided. The objective of the study is to develop chlorine decay model in seawater. Various model types were applied to develop the seawater chlorine decay model, such as first order decay model, EPA model, and two-phase model. The model simulation indicated that chlorine decay in seawater is influenced by both organic and inorganic matter in seawater. While inorganic matter has a negative correlation with the chlorine decay, organic matter has a positive correlation with the chlorine decay.

Keywords

References

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