Pirsaheb Meghdad, Moradi Negin
Research Center for Environmental Determinants of Health, Department of Environmental Health Engineering, School of Public Health, Kermanshah University of Medical Sciences Kermanshah Iran
RSC Adv. 2020 Feb 19;10(13):7396-7423. doi: 10.1039/c9ra11025a. eCollection 2020 Feb 18.
Along with the wide production, consumption and disposal of pesticides in the world, the concerns over their human and environmental health impacts are rapidly growing. Among developing treatment technologies, sonochemistry as an emerging and promising technology for the removal of pesticides in the aqueous environment has attracted the attention of many researchers in recent years. This systematic review presents an extensive study of sonochemical degradation of different types of pesticides from aqueous solution. The influence of various parameters including reactor configurations, initial concentration of pesticide, ultrasonic frequency, intensity of irradiation, bulk solution temperature, operational pH and sonication time on the degradation efficiency has been analyzed. The mechanism of ultrasonic degradation has been discussed, and recommendations for optimum operating conditions have been reported for maximizing degradation efficiency. Additionally, the intensification of ultrasonic cavitation by combining with oxidation processes was overviewed and the main advantages and disadvantages were pointed out, in order to address future studies and promote efficient large-scale operations. As a conclusion, it appears that ultrasonic irradiation can be effectively used for intensification of the degradation of pesticides from aqueous solution.
随着全球农药的广泛生产、消费和处置，人们对其对人类健康和环境影响的担忧正在迅速增加。在各种处理技术中，声化学作为一种新兴且有前景的技术，用于去除水环境中的农药，近年来吸引了众多研究人员的关注。本系统综述对水溶液中不同类型农药的声化学降解进行了广泛研究。分析了包括反应器配置、农药初始浓度、超声频率、辐照强度、本体溶液温度、操作pH值和超声处理时间等各种参数对降解效率的影响。讨论了超声降解的机理，并报告了为使降解效率最大化的最佳操作条件建议。此外，还概述了通过与氧化过程相结合强化超声空化的方法，并指出了主要优缺点，以指导未来的研究并促进高效的大规模操作。总之，超声辐照似乎可有效地用于强化水溶液中农药的降解。
