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NTIS 바로가기한국물환경학회지 = Journal of Korean Society on Water Environment, v.35 no.2, 2019년, pp.115 - 122
이덕영 (국립금오공과대학교 환경공학과) , 손영규 (국립금오공과대학교 환경공학과)
The objective of this study was to investigate the sonophysical and sonochemical effects induced by acoustic cavitation in heterogeneous systemin a 28 kHz double-bath reactor using calorimetry, the aluminiumfoil erosion test, and the luminol test. With no glass beads, calorimetric power in the inner...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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초음파 캐비테이션 현상은 어떻게 발생하는가? | 액상에의 20 kHz 이상의 초음파 조사에 의해 발생하는 초음파 캐비테이션 현상은 상대적으로 낮은 에너지 조건에서도 다양한 물리적 효과 및 화학적 효과를 유도할 수 있 어 다양한 환경/화학/재료/에너지 공정 등에서 사용될 수 있다(Adewuyi, 2001; Gotoh and Harayama, 2013; Leong et al., 2013; Neppolian et al. | |
초음파 캐비테이션 현상의 장점은 무엇인가? | 액상에의 20 kHz 이상의 초음파 조사에 의해 발생하는 초음파 캐비테이션 현상은 상대적으로 낮은 에너지 조건에서도 다양한 물리적 효과 및 화학적 효과를 유도할 수 있 어 다양한 환경/화학/재료/에너지 공정 등에서 사용될 수 있다(Adewuyi, 2001; Gotoh and Harayama, 2013; Leong et al., 2013; Neppolian et al. | |
입자 및 분말을 주입할 경우 캐비테이션 활성화 활성화 정도가 크게 증진되는 이유는 무엇인가? | (2007)은 154 kHz 초음파 조 건에서 알루미늄 입자와 테플론 분말을 주입하여 초음파화 학발광기법(Sonochemiluminescence, SCL)을 적용하였는데, 입자 및 분말을 주입할 경우 캐비테이션 활성화 정도가 크 게 증진되는 것을 확인하였다. 이는 입자/분말의 존재가 캐비테이션 버블에 대한 핵형성 자리(Nucleation site)로 작용 하여 캐비테이션 현상이 보다 낮은 에너지 상태에서도 가 능하였기 때문이라고 보고하였다. Kim et al. |
Adewuyi, Y. G. (2001). Sonochemistry: Environmental science and engineering applications, Industrial & Engineering Chemistry Research, 40, 4681-4715.
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Asakura, Y. (2015). Chapter 5 - Experimental methods in sonochemistry, in: Grieser, F., Choi, P. K., Enomoto, N., Harada, H., Okitsu, K., and Yasui, K. (eds.), Sonochemistry and the Acoustic Bubble, Elsevier, Amsterdam, 119-150.
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Choi, J., Khim, J., Neppolian, B., and Son, Y. (2019). Enhancement of sonochemical oxidation reactions using air sparging in a 36 kHz sonoreactor, Ultrasonics Sonochemistry, 51, 412-418.
Choi, J., Kim, T. H., Kim, H. Y., and Kim, W. (2016). Ultrasonic washing of textiles, Ultrasonics Sonochemistry, 29, 563-567.
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Kim, J., Park, B., Son, Y., and Khim, J. (2018). Peat mossderived biochar for sonocatalytic applications, Ultrasonics Sonochemistry, 42, 26-30.
Kim, S., Lee, W., and Son, Y. (2016). Ultrasonic and mechanical soil washing processes for the remediation of heavy-metal-contaminated soil, Japanese Journal of Applied Physics, 55, 07KE04.
Lee, K. I., Humphrey, V. F., Kim, B. N., and Yoon, S. W. (2007). Frequency dependencies of phase velocity and attenuation coefficient in a water-saturated sandy sediment from 0.3 to 1.0MHz, The Journal of the Acoustical Society of America, 121, 2553-2558.
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Leong, T., Johansson, L., Juliano, P., McArthur S. L., and Manasseh, R. (2013). Ultrasonic separation of particulate fluids in small and large scale systems: A review, Industrial & Engineering Chemistry Research, 52, 16555-16576.
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Neppolian, B., Bruno, A., Bianchi, C. L., and Ashokkumar, M. (2012). Graphene oxide based Pt- $TiO_2$ photocatalyst: Ultrasound assisted synthesis, characterization and catalytic efficiency, Ultrasonics Sonochemistry, 19, 9-15.
Park, B. and Son Y. (2017). Ultrasonic and mechanical soil washing processes for the removal of heavy metals from soils, Ultrasonics Sonochemistry, 35, 640-645.
Park, J., Church, J., Son, Y., Kim, K. T., and Lee, W. H. (2017). Recent advances in ultrasonic treatment: Challenges and field applications for controlling harmful algal blooms (HABs), Ultrasonics Sonochemistry, 38, 326-334.
Rahimabady, M., Statharas, E. C., Yao, K., Mirshekarloo, M. S., Chen, S., and Tay, F. E. H. (2017). Hybrid local piezoelectric and conductive functions for high performance airborne sound absorption, Applied Physics Letters, 111, 241601.
Son, Y. (2017). Simple design strategy for bath-type highfrequency sonoreactors, Chemical Engineering Journal, 328, 654-664.
Son, Y., Cha, J., Lim, M., Ashokkumar, M., and Khim, J. (2011). Comparison of ultrasonic and conventional mechanical soil-washing processes for diesel-contaminated sand, Industrial & Engineering Chemistry Research, 50, 2400-2407.
Son, Y., Lim, M., Ashokkumar, M., and Khim, J. (2011). Geometric optimization of sonoreactors for the enhancement of sonochemical activity, The Journal of Physical Chemistry C, 115, 4096-4103.
Son, Y., Lim, M., Khim, J., and Ashokkumar, M. (2012). Attenuation of UV light in large-scale sonophotocatalytic reactors: The effects of ultrasound irradiation and $TiO_2$ concentration, Industrial & Engineering Chemistry Research, 51, 232-239.
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Tuziuti, T., Yasui, K., Kozuka, T., Towata, A., and Iida, Y. (2007). Suppression of sonochemiluminescence reduction at high acoustic amplitudes by the addition of particles, The Journal of Physical Chemistry A, 111, 12093-12098.
Wang, X., Li, Y., Chen, T., and Ying, Z. (2015). Research on the sound absorption characteristics of porous metal materials at high sound pressure levels, Advances in Mechanical Engineering, 7, 1-7.
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