Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Effectiveness of elimination inflowing algae in water treatment plant using natural algae remover

천연 조류 제거제를 이용한 정수장 유입 조류 제거 효율

  • Jung, Hoyoung (Department of Convergence Science Technology, Graduate School of Venture Hoseo University) ;
  • Kim, Younghee (Department of Convergence Science Technology, Graduate School of Venture Hoseo University)
  • 정호영 (호서대학교 벤처대학원 융합과학기술학과) ;
  • 김영희 (호서대학교 벤처대학원 융합과학기술학과)
  • Received : 2019.06.11
  • Accepted : 2019.08.09
  • Published : 2019.08.15
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Abstract

The purpose of this study was to analyze water treatment characteristics, including the efficiency of removing algae from water purification plants, by installing a demonstration facility for decontamination of algae, including natural algae remover injection equipment, in the water purification plant. Jar-test showed that the optimum injection of natural decontaminant was 20 mg/L. Of the water contaminant treatment efficiency of the intake and water purification plants, Chl-a averaged 74.0% elimination efficiency from $5.0mg/m^3$ to $1.3mg/m^3$ and the maximum treatment efficiency was 91.5% removal efficiency when the inflow concentration of Chl-a was $11.8mg/m^3$. In addition, 51.2% and 47.1% of the taste and odor indicator items, geosmin and 2-MIB, resulted from the overgrowth and decaying of algae, respectively, to identify toxic substances and odor reduction effects. In addition, elimination efficiencies of SS and Turbidity materials were higher than 70.0%. In the injection of natural algae remover, no effects such as sudden changes in water quality due to secondary reactions were found, and appropriate levels were maintained under water treatment conditions.

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References

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