超声波与紫外光处理系统对水中塑化剂的控制研究

Study on the plasticizer control in water with ultrasonic and ultraviolet treatment system

随着社会经济的迅速发展,新型污染物塑化剂类对食物、大气、水和土壤等环境的污染越来越突出。针对水体中较高的塑化剂类污染,本文选定塑化剂类中的邻苯二甲酸二甲酯(DMP)、邻苯二甲酸二乙酯(DEP)作为研究对象,采用超声波(US)、紫外光(UV)和超声波联用紫外光处理系统(US/UV)控制水中DMP、DEP的浓度。结果表明,在单一的超声波条件下DMP和DEP的降解效率要稍高于紫外光的处理,但效果并不明显。而将US/UV联用后,经过120min处理后,DMP的去除率为45.3%;DEP的去除率为50%,处理效果得到明显提高。可见,US/UV联用不失为控制水中塑化剂类污染物的有效方法。

With the social and economic rapid development, new pollutant plasticizers are exposed in natural and artificial components through environmental media such as food, atmosphere, water and soil. Focusing on plasticizer pollution in water, this paper investigated the performance of ultrasonic（US）, ultraviolet（UV）, combination of ultrasonic field and ultraviolet treatment system（US/UV）to control the concentration of Dimethyl Phthalate（DMP） and Diethyl Phthalate（DEP） in water as typical plasticizer. The results showed that, removal efficiency of DMP and DEP in ultrasonic condition was slightly higher than that in ultraviolet condition. The removal efficiency was significantly improved when US and UV was combined. 120 min of US/UV treatment could remove45.3% of DMP and 5 % of DEP. It is suggested that combining US and UV treatment system is a good methed to control the pollutant plasticizers in water.