超声技术处理水中有机污染物

Treatment of Organic Pollutants in Water by Ultrasound

超声技术在处理水中有机污染物的应用近年来受到越来越多的关注。与常规处理方法相比,超声处理高效省时。超声技术对众多难处理有机污染物的降解是有效的。本文介绍了超声降解有机污染物原理、影响因素和各种方法,主要包括单独使用超声处理和超声与生物催化剂、化学氧化、吸附等其它技术的联用,综述了近年来利用超声技术处理水中有机污染物的研究进展,对存在问题和发展趋势提出了见解。

In recent years, increasing attention has been focused on the application of ultrasound for the destruction of organic contaminants in water. Compared with conventional treatment methods, the ultrasonic treatment increases the degradation efficiency and reduces the time required for removing the organic contaminants. Ultrasonic technology has been proven to be effective for the degradation of the most refractory organic pollutants. The principle and the major influencing factors on degradation efficiency and methods （including ultrasound irradiation individually and ultrasonic waves in conjunction with other techniques such as bio-catalyst, chemical oxidation, and adsorption） of ultrasonic degradation are described in this paper. Progress in treatment of organic pollutants in water by using ultrasound technology is reviewed. Moreover, existing problems and future study directions are discussed.