Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Investigation on the products generated by the ozonation of Microcystis sp.

Microcystis sp.의 오존접촉특성 및 부산물 생성에 관한 연구

  • 김영웅 (부산시 수질연구소) ;
  • 손희종 (부산시 수질연구소) ;
  • 유명호 (부산시 수질연구소) ;
  • 이춘식 (진주산업대학교 환경공학과) ;
  • 김성윤 (동경공업대학 원자로공학연구소)
  • Published : 2000.12.30
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Abstract

This study investigated the removal characteristics, Microcystin decomposition and generation of by-products when aqueous Microcystis sp. is oxidized by ozone. The concentration of Microcystin (MC) in aqueous solution has been found by HPLC analysis to decrease continuously by ozonation after the initial, abrupt increase. The kinetic constant of the decomposition of MC-RR and -LR were 0.0596 and 0.0243, respectively. This means that removal efficiency of MC-RR by its oxidative decomposition is preferable compared with that of MC-LR. On the other hand, it has been found that the decomposition product, TOC, exhibits the continuous decrease in the concentration by further ozonation, while DOC and UV-254 increase temporarily until 10 minutes before the decrease. Furthermore, the GC/MSD analysis has revealed that the ozonation of Microcystis sp. for 100minutes affords five kinds of aldehydes, six kinds of alcohols, and trans-1, 2-dimethyl-cyclopropane.

Keywords

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