| Title |
Effect of Power Intensity on the Phenol and Chlorinated Compounds Mixture Solutions by Ultrasound |
| Authors |
임명희 ( Myung Hee Lim ) ; 손영규 ( Young Gyu Son ) ; 양재근 ( Jae Keun Yang ) ; 김지형 ( Jee Hyeong Khim ) |
| Keywords |
Carbon tetrachloride; Chloroform; Dichloromethane; Phenol; Power intensity; Sonochemistry |
| Abstract |
Degradations of phenol and chlorinated compounds mixtures were studied with ultrasound of 20 kHz and 0.57, 1.14 W/mL. In presence of carbon tetrachloride (CT), degradation rate of phenol is faster than chloroform (CF), dichloromethane (DCM) and phenol solution. It is due to that CT generates of free chlorine (HOCl and OCl-) from the sonochemical degradation and plays a role of hydrogen atom scavenger. CF and DCM are react with free chlorine, so amount of free chlorine is smaller than CT solution. The degradation rates of chlorinated compounds decreased with co-presence of phenol in the solution due to the distribution ultrasonic energy to both compounds. The measured chloride ion was lower than the theoretical concentration assuming complete degradation. This means not all the contaminants destructed went through complete degradation. |