ISSN: 0973-7510
E-ISSN: 2581-690X
Cyanobacteria belong to the photosynthetic bacteria by some characteristics of algae. It has long been found that some cyanobacteria may produce toxic hazardous, thus posing a threat to both animals and human health. The green ultrasound technique has been a promising tool for removing cyanobacteria from water while research on the influence of ultrasound on Microcystis sp. viability has attracted wide attention. The effect of ultrasonic intensity on Microcystis sp. viability in this study was investigated while the quantitative analysis of the Microcystis sp. viability during ultrasound was carried out with flow cytometry (FCM). Results indicated that with a lower ultrasonic intensity below the cavitation threshold, 62.23% of the algal cells were damaged but the death rate of algal cells was 0.82%. However, higher ultrasonic intensity above the cavitation threshold led to a death rate up to 41.51% and damage to algal cells of 58.16%.
Flow cytometry (FCM), Ultrasound; Cell viability; Microcystis sp., Ultrasonic intensity
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