Korean Journal of Environmental Biology (환경생물)

Korean Society of Environmental Biology (한국환경생물학회)
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Removal of Microcystis sp. using Ceramic Powder

분말세라믹에 의한 Microcystis sp. 제거효과

  • Lee, Jae-Won (Environmental Biotechnology Center, Korea Research Institute of Bioscience and Biotechnology) ;
  • Kim, Min-Soo (Environmental Biotechnology Center, Korea Research Institute of Bioscience and Biotechnology) ;
  • Joung, Seung-Hyun (Environmental Biotechnology Center, Korea Research Institute of Bioscience and Biotechnology) ;
  • Ahn, Chi-Yong (Environmental Biotechnology Center, Korea Research Institute of Bioscience and Biotechnology) ;
  • Kim, Bo-Bae (Environmental Biotechnology Center, Korea Research Institute of Bioscience and Biotechnology) ;
  • Jang, Kam-Yong (College of Medicine, Konyang University) ;
  • Oh, Hee-Mock (Environmental Biotechnology Center, Korea Research Institute of Bioscience and Biotechnology)
  • 이재원 (한국생명공학연구원 환경생명공학연구센터) ;
  • 김민수 (한국생명공학연구원 환경생명공학연구센터) ;
  • 정승현 (한국생명공학연구원 환경생명공학연구센터) ;
  • 안치용 (한국생명공학연구원 환경생명공학연구센터) ;
  • 김보배 (한국생명공학연구원 환경생명공학연구센터) ;
  • 장감용 (건양대학교 의과대학) ;
  • 오희목 (한국생명공학연구원 환경생명공학연구센터)
  • Published : 2007.06.01
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Abstract

The removal of Microcystis aeruginosa and Chlorella zofingiensis by ceramic powder was investigated on the basis of both the particle size (under 0.05, 0.1, 1 mm) and the dosage (0.1, 1, $10\;g\;L^{-1}$) of the ceramic powder. The removal efficiencies of M. aeruginosa and C. zofingiensis were highest with a particle size of 0.05 mm and a dosage of $1\;g\;L^{-1}$ of the ceramic powder in laboratory experiment. $chlorophyll-{\alpha}$ concentrations decreased in both field and enclosure samples with a particle size of 0.05 mm and a dosage of $1\;g\;L^{-1}$ of ceramic powder, resulting in the removal efficiencies of 67 and 69%, respectively. Consequently, it was concluded that the ceramic powder could be used to control algal bloom by removing $chlorophyll-{\alpha}$ in eutrophic waters.

수화현상의 대표적 원인 생물인 남조류의 M. aeruginosa와 대조구로서 녹조류인 C. zofingiensis를 인공 배양하여 분말세라믹 투여에 따른 선택적 조류 제거 가능성에 대해 실험하였다. 0.05 mm의 분말세라믹을 투여에 따른 M. aeruginosa 및 C. zofingiensis의 침전효율은 각각 82와 63%였으며, 입자크기 0.1과 1 mm의 경우에서 는 M. aeruginosa는 각각 69와 34%, C. zofingiensis는 각각 52와 44%의 침전효율을 나타냄으로써, 분말세라믹 처리에 따른 침전효율의 차이를 나타내는 것을 확인하였다. 또한 Microcystis sp.에 의한 수화현상이 빈번한 수역의 현장시료를 대상으로 분말세라믹 처리에 따른 조류 제거효과를 실험한 결과 입자크기 0.05 mm, 투여농도 $1\;g\;L^{-1}$의 조건에서 24시간 후 약 67%의 Microcystis sp. 제거효과를 나타내었다. 분말세라믹의 수화현장에 적용가능성 여부를 확인하기 위하여 소규모 enclosure에서 분말세라믹 처리 농도에 따른 Microcystis sp. 제거효과 실험한 결과 입자크기 0.05 mm,투여농도 $1\;g\;L^{-1}$의 조건에서 24시간 후 약 69%의 Microcystis sp.의 제거효과를 나타내었으며, 이러한 연구결과로 보아 Microcystis sp.에 의해 수화가 발생한 현장에 분말세라믹을 적용하여 독성 남조류를 효율적으로 제거할 수 있을 것으로 기대된다.

Keywords

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