• AWWA ACE62950

AWWA ACE62950

Destruction of Cyanobacteria Toxin by Ozone

American Water Works Association , 06/01/2006

Publisher: AWWA

File Format: PDF

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This slide presentation outlines the significance, treatment and management of cyanobacteria and cyanotoxins along with ozonation of cyanobacterial toxins, specifically: effects of ozone dose, pH, natural organic matter (NOM); toxicity; and, byproducts. Conclusions were that: ozonation was very effective to detoxify naturally occurring microcystins in water; reaction pH was an important factor for microcystin degradation by ozonation; the presence of NOM lower the removal efficiency of microcystin; toxicity of microcystin solution increased at insufficient ozone doses; a number of ozonation byproducts were identified; degradation pathway was proposed; and, destruction of Adda moiety coincided with detoxification of microcystins. Includes figures.

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