Cyanobacteria cell damage and cyanotoxin release in response to alum treatment

DOI PDF 被引用文献1件 オープンアクセス
  • Jisun Han
    Department of Mountain and Environmental Science, Graduate School of Science and Technology, Shinshu University, Ashahi 3-1-1, Matsumoto 390-8621, Japan
  • Bong-seok Jeon
    Department of Mountain and Environmental Science, Graduate School of Science and Technology, Shinshu University, Ashahi 3-1-1, Matsumoto 390-8621, Japan
  • Ho-Dong Park
    Department of Mountain and Environmental Science, Graduate School of Science and Technology, Shinshu University, Ashahi 3-1-1, Matsumoto 390-8621, Japan

書誌事項

公開日
2012-08-01
DOI
  • 10.2166/ws.2012.029
公開者
IWA Publishing

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説明

<jats:p>Alum (aluminium sulfate) has been evaluated as a less-hazardous chemical for cyanobacteria that does not cause physiological toxicity and causes little or no release of cyanotoxins. In this study, the effect of alum treatment on toxic Microcystis cells was evaluated on weekly and monthly scales using a microcosm experiment designed to simulate common lakes or reservoirs. Alum treatment caused cell damage and subsequent release of large amounts of microcystin-LR (MC-LR). Moreover, MC-LR and Microcystis cells were degraded by microbes that existed in the lake sediment. This is the first study to report a serious release of microcystin by alum treatment. For this reason, care about release of a large amount of hepatotoxic microcystin should be taken when adding alum for cyanobacterial removal in lakes and reservoirs.</jats:p>

収録刊行物

  • Water Supply

    Water Supply 12 (5), 549-555, 2012-08-01

    IWA Publishing

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