Effect of Ultrasonic Intensity on the Degradation of Phenol Solution
Effect of ultrasonic intensity on the degradation of phenol solution is investigated by changing the nominal ultrasonic power,ultrasonic frequency and the position of reactor.The actual ultrasonic intensity (Ⅰ) that reaches reactor is measured by ultrasonic power measuring meter.It can be found that the ultrasonic intensity varies with ultrasonic parameters.With the nominal power input improving from 60 W to 150 W,the ultrasonic intensity rises from 0.21 W·cm-2 to 1.06 W·cm-2 and the degradation rate of phenol solution (η) increases from 21.7% to 43.7%.However,when I reaches the highest value of 1.71 W·cm-2 at the frequency of 100 kHz,ηdecreases to the lowest value of 21.5%.The ultrasonic intensity distribution is uneven in the ultrasonic bath and η increases with an increase of I in the vertical direction.The ultrasonic degradation of phenol solution is affected by ultrasonic intensity,but η doesnt definitely increase with an increase of ultrasonic intensity.
Ultrasonic irradiation Degradation Phenol Ultrasonic intensity
Meijuan Yin Peng Cui Zhi Hu Yazhong Chen Wei Xiong
School of Chemical Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China
国际会议
昆明
英文
1173-1176
2011-12-28（万方平台首次上网日期，不代表论文的发表时间）