Degradation of M-zylene Solution Using Ultrasonic Irradiation
In this present work, the aim is to apply ultrasonic technique to remove m-xylene from aqueous solution, a volatile compound, which causes some damages for environment. A set of high frequency ultrasonic equipments were used to investigate the effect of different operational parameters such as m-xylene initial concentration, ultrasonic frequency, ultrasonic power. At the conditions in question, the degradation rate of m-xylene is increased with decreasing the initial concentration and increasing frequency and power. Under the optimal conditions of 26.07 mg/L, 806.3 kHz, 69 w, addition of MnO2, Cu2+, Fe2+ and H2O2 have little or no effect on degradation. More, the effect of radical scavengers, Na2CO3, t-butyl is also not obviously, which indicates that direct pyrolysis inside the collapsing bubbles has an important role in m-xylene ultrasonic removal. In addition, m-xylene ultrasonic removal is observed to behave as pseudo-first-order kinetics under different experimental conditions tested in the present work.
m-zylene ultrasonic irradiation degradation
XIE Weiping QIN Yan JIANG Chengchun HE Dewen
College of Construction and Environment Engineering,Shenzhen Polytechnic Institute,Shenzhen 518055,G College of Metallurgical Science & Engineering,Central South University,Changsha 410083,Hunan,China
国际会议
2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)
上海
英文
1573-1578
2009-06-02（万方平台首次上网日期，不代表论文的发表时间）