Development of New Reaction Process Using Behavior of Microbubbles in Ultrasonic Field

超声作为一种降解有害有机化合物的技术已得到广泛的研究。本研究将间接超声辐照法应用于典型有害有机化合物苯酚的降解过程。反应器位置对苯酚降解速率的影响与KI氧化剂量法测定的化学效率和量热法测定的超声功率的影响重叠。此外，TiO_2颗粒的加入提高了苯酚的降解率，因为颗粒的表面积被认为对超声波照射下OH自由基的形成起作用。

Ultrasound has been investigated as one of the techniques for degradation of hazardous organic compounds. In this study, indirect ultrasonic irradiation method was applied to degradation process of phenol, the model hazardous organic compound. The effect of reactor's position on the degradation rate of phenol overlapped with its effects on chemical efficiency estimated by KI oxidation dosimetry and ultrasonic power measured by calorimetry. In addition, degradation rate of phenol was improved by TiO_2 particle addition, because the particle's surface area was considered to be working for OH radical formation by ultrasonic irradiation.