Research Progress on Microbubble Generation Methods and Generators
SHUAI Yun1, ZHU Yiliang2, HUANG Zhengliang2, WANG Jingdai2, YANG Yongrong2
1. Ningbo Innovation Center, Zhejiang University, Ningbo 315100, China;
2. Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China
Abstract：Microbubbles have the characteristics of long liquid phase residence time, high interface potential, and high mass transfer efficiency, and have broad application potential in water treatment, mineral flotation, food processing, chemical industry, medical detection, and other fields. The efficient generation of microbubbles is the key of the process intensification technology based on microbubble. The existing microbubble generation usually includes the formation and detachment of initial bubbles at the orifice, the breakup of moving bubbles, and the sudden change and precipitation of gas solubility. Based on this, various microbubble generation methods such as bubble growth detachment process control, bubble breakup control, gas solubility control, and multiple coupling methods were introduced. It was pointed out that the existing microbubble generators still have problems such as low gas processing capacity and excessive energy consumption. At the same time, it is urgent to establish a comprehensive evaluation standard based on the needs of various industries for screening microbubble generation methods.
SHUAI Yun,ZHU Yiliang,HUANG Zhengliang et al. Research Progress on Microbubble Generation Methods and Generators[J]. Chemical Reaction Engineering and Technology, 2025, 41(1): 14-23.
