Abstract: Micro-and nano-bubbles have distinctive characteristics which are different from ordinary bubbles，and the applications of micro-and nano-bubble technology in environmental pollution control have attracted more and more attentions in recent years. In this paper，the technical characteristics of micro-bubble and nano-bubbles were introduced in detail mainly on mass transfer intensification，interfacial potential and the release of free radicals. The recent applications of micro-and nano-bubble technology were emphatically illustrated as well，such as the removal of suspended solids，the intensive degradation of organic pollutant and the promotion of biodegradable ability. In addition，the technical advantage and the application prospects were presented and some existed problems on micro-and nano-bubble technology were pointed out，such as how to effectively denitrify，how to obtain optimal conditions coupled with some strong oxidation methods and new environmental pollution restoration technology，as well as how to develop practical nano-bubbles generation with low cost，energy efficiency，superior performance and easy application in broad scope.

Key words: micro-bubble, nano-bubble, environmental pollution control, characteristic

摘要： 微纳米气泡具有与普通气泡不同的突出特性，近年来在环境污染控制领域中的应用日益受到关注。本文详细介绍了微纳米气泡在强化传质、界面电位以及可释放自由基等方面的技术特性，重点评述了微纳米气泡技术在悬浮物的吸附去除、难降解有机污染物的强化分解与生物净化功能的促进等方面的最新研究进展与应用现状，分析了微纳米气泡技术在环境污染治理中的技术优势与应用前景，并指出目前微纳米气泡技术的研究方向应侧重于如何实现有效脱氮、如何优化与其它强氧化条件的协同条件、如何开发出适用的环境污染修复新技术，以及如何开发出低成本、低能耗、性能优越、适于推广的实用型纳米气泡发生装置等。

关键词: 微气泡, 纳米气泡, 环境污染控制, 特性