Experimental study on microalgae inactivation in marine ballast water by microbubbles

Wei Li; Xin Wang; Hao Lu; Hongpeng Zhang; Tao Cao; Cunyou Zhang

doi:10.1117/12.3016951

15 January 2024 Experimental study on microalgae inactivation in marine ballast water by microbubbles

Wei Li, Xin Wang, Hao Lu, Hongpeng Zhang, Tao Cao, Cunyou Zhang

Proceedings Volume 12983, Second International Conference on Electrical, Electronics, and Information Engineering (EEIE 2023); 129830I (2024) https://doi.org/10.1117/12.3016951
Event: Second International Conference on Electrical, Electronics, and Information Engineering (EEIE 2023), 2023, Wuhan, China

Abstract

This paper focuses on the application of microbubble technology in the treatment of ballast water in ships. The mechanism of microbubble generation using hydrodynamic cavitation method was investigated through fluid finite element simulation. The influence of generator structure and pressure on bubble generation was explored. An experimental system for microbubble ship ballast water treatment was established, using marine planktonic microalgae as indicator species. The algal-killing performance of cavitation microbubbles was investigated, and the water quality changes and morphological variations of the treated species were studied in response to microbubble treatment. The results demonstrated that the experimental system achieved efficient generation of microbubbles and laboratory-scale treatment of water samples. Microbubbles contributed to minimizing the use of active substances, thereby reducing the toxicity of treated water, and showed potential as an environmentally acceptable practical ballast water treatment technology.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Wei Li, Xin Wang, Hao Lu, Hongpeng Zhang, Tao Cao, and Cunyou Zhang "Experimental study on microalgae inactivation in marine ballast water by microbubbles", Proc. SPIE 12983, Second International Conference on Electrical, Electronics, and Information Engineering (EEIE 2023), 129830I (15 January 2024); https://doi.org/10.1117/12.3016951

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