| Title |
Effect of Gas Sparging on Sonochemical Oxidation in a 300 kHz Sonoreactor |
| Authors |
서지은 ( Jieun Seoa ) ; 손영규 ( Younggyu Sonb ) |
| DOI |
https://doi.org/10.15681/KSWE.2018.34.6.642 |
| Keywords |
Cavitation; DO concentration; Gas sparging; Sonochemical oxidation; Sonochemistry |
| Abstract |
The effect of gas sparging on sonochemical oxidation was investigated in a 300 kHz sonoreactor under various liquid height/volume conditions (5 ~ 30λ, 3.4 ~ 9.0 L), determined by the wavelength of the applied frequency. The electrical input power was maintained constant for all cases < repetition of input >. Sonochemical activity drastically decreased from 15λ and the liquid height of 10λ was suggested as the optimal height for 300 kHz without gas sparging. In our previous research, the sonochemical activity observed was five-times higher when air sparging was applied for 36 kHz. On the other hand, no enhancement was obtained at 10, 15, 25 and 30λ using air sparging (1, 3, and 6 L/min) for 300 kHz in this study 2 = 80 % : 20 % (DO saturation?100 %) was suggested as an optimal gas sparging condition. |