微纳米气泡特征及其在环境治理中的应用

CHARACTERISTICS OF MICRO-NANO BUBBLE AND ITS APPLICATION IN ENVIRONMENTAL TREATMENT

介绍了微纳米气泡与普通气泡相比所具备的优势特性,如在水中停滞接触时间长、以及微纳米气泡的产生方式及各种发生方式的特点。同时重点评述了微纳米气泡在地下水原位修复、黑臭河水控制与改善、污废水治理上的最新研究进展及在膜清洗等领域的研究应用。表明了微纳米气泡可增强好氧微生物的活性,促进污染物的生物降解,改善水体物理环境,对污染水体中COD、总氮、总磷及油的去除有很好的促进作用,同时指明了未来微纳米气泡的研究重点。

This paper mainly introduced the advantages of the micro-nano bubbles compared with the ordinary ones, as well as the characteristics of various micro-nano bubble generation methods, and reviewed the recent research progress of micro-nano bubbles application in the field of in situ restoration of groundwater, the control of black and smelly water, the treatment of wastewater and the membrane cleaning. The micro-nano bubbles could enhance the activity of aerobic microorganisms, promote the biodegradation of pollutants, improve the physical environment of groundwater, increase the removal efficiencies of COD, total nitrogen, total phosphorus and oil from wastewater, and indicate the further research of micro-nano bubbles.