超声波技术在降解水体污染物中的应用研究

Application of Ultrasound to Degradation of Water Pollutants

未经处理或经过处理但未达标直接排放的废水中含有较多污染物,会对动植物乃至人体带来严重危害。提出一种基于超声波技术的水体污染物降解方法,对超声波空化降解机理进行了分析,从理论上分析超声波声强、超声波频率、反应温度等因素对水体污染物降解效果的影响,降解过程中添加氯化钠粒子能够显著提高水体污染物溶液中的苯酚去除率。研究为超声波技术降解水体污染物试验以及实际应用时选取合适的超声波频率、超声波声强、反应温度等环境提供了可靠的理论依据。

Non-treated or treated wastewater that failed to reach discharge standards contains lots of pollutants. It will do serious harm to plants,animals and even human beings. A method of degradation of water pollutants based on ultrasonic technology was proposed. The mechanism of ultrasonic cavitation degradation was analyzed. The influence of ultrasonic sound intensity,ultrasonic frequency and reaction temperature on the degradation of pollutants was analyzed theoretically. During the degradation process,sodium chloride particles were added to significantly improve phenol removal efficiency in water contaminants solution.The research provides a reliable theoretical basis for the ultrasonic technology to degrade water pollutants and select the suitable ultrasonic frequency,ultrasonic intensity and reaction temperature during the practical application.