Journal of Korean Society of Environmental Engineers (대한환경공학회지)

Korean Society of Environmental Engineers (대한환경공학회)
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Effect of Pre-chlorine and Polyamine Dosing for Microcystis sp. Bloomed Water on Drinking Water Treatment Processes : Particle Matter Distribution

Microcystis sp.로 수화된 상수원수에 전염소 및 폴리아민 투입이 정수처리에 미치는 영향 : 입자상 물질 분포

  • 손희종 (부산광역시 상수도사업본부 수질연구소) ;
  • 김상구 (부산광역시 상수도사업본부 수질연구소) ;
  • 이정규 (부산광역시 상수도사업본부 명장정수장) ;
  • 황영도 (부산광역시 상수도사업본부 수질연구소) ;
  • 류동춘 (부산광역시 상수도사업본부 수질연구소)
  • Received : 2017.09.11
  • Accepted : 2017.10.13
  • Published : 2017.10.31
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Abstract

This research carried out to evaluate the disadvantage of pre-chlorination and the effect of polyamine as coagulant aids for treating the blooming water with Microcystis sp.. Pre-chlorination on blooming water makes the colony of Microcystis sp. to the smaller size. Coagulation with polyamine advanced treatment efficiency not only turbidity but also particulate matters especially less then $5{\mu}m$ size for the blooming water compared with using alum alone. Particle count was more sensitive than turbidity on water quality management of settlement and filtrate.

Microcystis sp.로 수화된 원수에 대해 전염소 처리시 발생하는 문제점과 응집보조제로 polyamine을 투입하였을 때의 응집 및 여과공정에서의 효과를 수중의 입자상 물질의 분포로 평가하였다. Microcystis sp.로 수화된 원수를 전염소 처리하면 Microcystis sp. 군집이 각각의 세포들로 분산되어 응집에 불리한 것으로 나타났다. 응집보조제로 polyamine을 이용하면 응집제 단독으로 응집하는 경우에 비해 탁도와 입자성 물질 제거에 효과적이었으며, 특히 직경 $5{\mu}m$ 이하의 입자상 물질의 제거에 탁월하였다. Microcystis sp.로 수화된 상수원수를 이용하는 정수장에서는 전염소 처리를 배제하고 정수장을 운영하는 방법이 후단공정에서 입자상 물질의 제거 및 관리에 효율적이었다.

Keywords

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