介质阻挡放电等离子体去除水中农药吡虫啉

Removal of Imidacloprid in Water by Dielectric Barrier Discharge Plasma

吡虫啉是当下使用最广泛的新烟碱类杀虫剂之一。常规的传统方法很难将其从水中去除,而低温等离子体被认为是一种富有潜力去除水中有机污染物的技术。结果表明,介质阻挡放电等离子体技术可有效去除水中吡虫啉,34.8W下等离子体处理10min,吡虫啉去除率达60.1%,当等离子体协同NaClO时其降解效果进一步提高。添加5%NaClO,等离子体处理仅2min时,吡虫啉的降解效率高达90.3%。

Imidacloprid is one of the most widely used neonicotinoid insecticides.Conventional traditional methods are difficult to remove it from water,and non-thermal plasma is considered to be a promising technology for removing organic pollutants in water.The results showed that the dielectric barrier discharge plasma technology could effectively remove imidacloprid in water.The removal efficiency of imidacloprid was 60.1%after plasma treatment at 34.8 W for 10 min.When the plasma cooperated with NaClO,the removal efficiency was further improved.When 5%NaClO was added and the plasma treatment was only 2 min,the degradation efficiency of imidacloprid was as high as 90.3%.