中文摘要：

微米气泡一般是指直径〈50μm的气泡，由于其具有比表面积大、上升速度慢、内部压力高等区别于普通大气泡的独特性质，近年来引起广泛关注，并开始应用于医疗、生物、环境治理等领域。介绍了微米气泡在环境治理领域主要的应用方向，展望了微米气泡在环境领域的应用前景，并讨论了现有技术中需解决的问题。

英文摘要：

Microbubbles are tiny bubbles with a diameter of less than 50 p~m. For their specific characteristics different from maerobubbles, including large specific surface area, low rise velocity, high internal pressure and so on, microbubbles have drawn great attention and been used in various fields （medicine, biology, environmental management and so on）. The applications of microbubbles in envi- ronmental management were introduced and prospected. Problems to be solved in the existing technolo- gies were discussed.