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Hydroxyl radical generated by micro-nano bubbles and its application in water treatment

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In comparison with traditional bubbles, micro-nano bubbles (MNBs) could generate hydroxyl radical(·OH) and owned advantages of large specific surface area, high gas-liquid mass transfer efficiency, high zeta potential at the bubble interface, easy self-pressurization and collapse, and they have been widely used in environmental engineering. This paper summarized the formation mechanisms of the OH generated by MNBs and its influencing factors. The application of the produced OH in water and wastewater treatment was briefly introduced. In addition, the development direction and application of MNBs are prospected, which are promising to provide reference for the theoretical research and practical application of micro nano bubble technology.

micro-nano bubbleshydroxyl radicalwater treatmentapplicationmechanism

Wenjie Sun、Guicai Liu、Xiao Ren、Chao Liu、Liping Qiu、Shoubin Zhang、Kang Xie

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School of Civil Engineering and Architecture, University of Jinan, 336 Nanxinzhuang West Road, Jinan, 250022, China

International Conference on Optoelectronic Information and Functional Materials

Chongqing(CN)

2022 International Conference on Optoelectronic Information and Functional Materials

122552V.1-122552V.6

2022

10.1117/12.2638618