Effect of Ultrasonic Frequency and Power Density for Degradation of Dichloroacetonitrile by Sonolytic Ozonation
- Authors
- Park, Beomguk; Shin, Donghoon; Cho, Eunju; Khim, Jeehyeong
- Issue Date
- 7월-2012
- Publisher
- IOP PUBLISHING LTD
- Citation
- JAPANESE JOURNAL OF APPLIED PHYSICS, v.51, no.7
- Indexed
- SCIE
- Journal Title
- JAPANESE JOURNAL OF APPLIED PHYSICS
- Volume
- 51
- Number
- 7
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/108109
- DOI
- 10.1143/JJAP.51.07GD07
- ISSN
- 0021-4922
- Abstract
- The degradation of dichloroacetonitrile (DCAN) by means of the processes of sonolysis, ozonolysis and sonolytic ozonolysis was studied, and degradation rate constants were evaluated at various frequencies and power densities of ultrasound. The ultrasonic frequencies used were 35, 170, 283, 450, and 935 kHz. The power densities were in the range of 9.5 to 20 W/L. The degradation rate constants for the sonolytic ozonolysis were (3.1-4.4) x 10(-3) min(-1) with the power density of 9.5 W/L and the ozone dose of 3.7 g/h. And the synergistic effect in sonolytic ozonolysis was significant at 35 and 283 kHz among the five frequencies. The sonolytic ozonolysis provided an extra oxidation mechanism by generating additional hydroxyl radicals, giving significant enhancement on the process. The calculated values of synergistic effect were 2.56 and 2.15 at 35 and 283 kHz, respectively. (C) 2012 The Japan Society of Applied Physics
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.