Title :
Sonolysis of Pentachlorophenol by Sole- and Dual-Frequency Ultrasonication
Author :
Wang, Songlin ; Wu, Xiaohui ; Wang, Yansong
Author_Institution :
Sch. of Environ. Sci. & Eng., Huazhong Univ. of Sci. & Technol., Wuhan
Abstract :
Pentachlorophenol sonolysis by different frequency ultrasound combination were investigated at five different frequencies over the range from 20 kHz to 1040 kHz. Pentachlorophenol degradation rate by sole-frequency ultrasound firstly increases along with frequency, and then decreases as the frequency arrives at some degree, pentachlorophenol degradation by sole frequency ultrasound shows obvious frequency effect. Pentachlorophenol degradation efficiency by dual frequency ultrasound is the highest compared to that by sole frequency ultrasound, so the combination of dual frequency systems has synergistic effect. The order of contribution to the enhancement effect of sonochemical degradation of pentachlorophenol at 20 kHz is as follows: 530 kHz > 800 kHz > 40 kHz > 1040 kHz.
Keywords :
organic compounds; ultrasonic effects; water pollution; dual-frequency ultrasonication; frequency 20 kHz to 1040 kHz; frequency effect; pentachlorophenol degradation rate; pentachlorophenol sonolysis; sole-frequency ultrasonication; sonochemical degradation; synergistic effect; water pollutant; Chemical technology; Face detection; Frequency; Kinetic theory; Organic chemicals; Organic compounds; Thermal degradation; Ultrasonic imaging; Ultrasonic transducers; Water pollution;
Conference_Titel :
Bioinformatics and Biomedical Engineering, 2008. ICBBE 2008. The 2nd International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1747-6
Electronic_ISBN :
978-1-4244-1748-3
DOI :
10.1109/ICBBE.2008.1117
