超声过氧化氢氧化铜组合技术去除水中苯酚的研讨.pdfVIP

G017 超声－过氧化氢－氧化铜组合技术去除水中苯酚的研究 * 孔黎明，谷和平 ，吕效平 （南京工业大学化学化工学院，江苏南京 210009 ） 摘 要 研究了超声－H O －CuO组合技术对苯酚的去除效果。考察了苯酚初始浓度、声强、溶液温度及鼓 2 2 入空气对苯酚去除率的影响。实验结果表明：鼓气时超声－H O －CuO组合对苯酚的去除效果优于未鼓气 2 2 时的去除效果；初始浓度低，苯酚去除率高；在苯酚初始浓度 25mg·L-1 ，声强 4.97W·cm-2,CuO 加入量 1 mg·ml-1,H O 加入量 300mg·L-1,超声辐照时间 4.0 ｈ条件下，溶液温度从25 ℃上升到 55℃时，苯酚去除率从 2 2 89.5%上升到 100%且去除速率也迅速增大，与一般超声处理条件下的变化趋势不同，温度对此过程的影响 主要表现为对催化作用的影响。 关键词 超声 过氧化氢 氧化铜 苯酚 去除 STUDY 0N THE REMOVAL OF PHENOL IN WATER BY THE ULTRASOUND-H O -CuO TECHNOLOGY 2 2 KONG Liming, GU Heping, LU Xiaoping (College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009,China) Abstract The effect of phenol removal by the combination of ultrasound-H O -CuO has been 2 2 investigated. The affecting factors such as initial phenol concentration, sound intensity, temperature and air were studied in this paper. The results showed that the effect of phenol removal under saturating air is better than not having saturating air during ultrasound-H O -CuO 2 2 removing phenol and the ratio of phenol removal increases with the initial phenol concentration decreasing. The ratio of phenol removal increases when temperature increasing from 25 ℃ to 55 ℃ -1 -2 -1 under the initial phenol concentration 25mg·L , sound intensity 4.97W·cm , CuO1 m