Dual-Frequency Ultrasonic Assisted Ozonation for Degradation of Pesticide Wastewater

Abstract:

Dual-frequency ultrasonic assisted ozonation was proposed to degrade pesticide wastewater. The frequencies of ultrasound were 28 kHz and low-MHz (208 kHz, 495 kHz, 679 kHz and 890 kHz). The influence of ultrasound frequency was investigated in this paper. The electrical conductivity of deionized water was measured under different conditions, and degradation rate of acephate solution was used to verify degradation effect of the treatment. The results implied that the 208 kHz system was suitable for ozone dissolving and 495 kHz system was suitable for acephate degradation.

• Periodical: Applied Mechanics and Materials (Volumes 587-589)
• Pages: 598-601
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.587-589.598
• Online since: July 2014
• Authors: Bin Wang, Chang Ping Zhu*, Yu Zhen Yin, Cheng Yao, Bing Yan Chen, Cheng Yin, Ming Lei Shan, Qing Gong Ren, Yuan Gao, Qing Bang Han, Yi Bin Tang, Zhen Bing He
• Keywords: Dual-Frequency Ultrasonic, Electrical Conductivity, Pesticide Wastewater

References

[1] J.Y. Chen, Y.J. Lin, W.C. Kuo: Pesticide residue removal from vegetables by ozonation. Journal of Food Engineering. 114 (2013) 404-411.

DOI: 10.1016/j.jfoodeng.2012.08.033

[2] D.M. Yang, B. Wang, H.Y. Ren, J.M. Yuan. Effects and mechanism of ozonation for degradation of sodium acetate in aqueous solution. Water Science and Engineering. 5 (2012) 155-163.

[3] Y. Y Zhang, Z.Y. Xiao: Degradation behavior and products of malathion and chlorpyrifos spiked in apple juice by ultrasonic treatment. Ultrasonics Sonochemistry. 17 (2010) 72–77.

DOI: 10.1016/j.ultsonch.2009.06.003

[4] S. Song, Z.Q. He, J.M. Chen: US/O3 combination degradation of aniline in aqueous solution. Ultrasonics Sonochemistry. 14 (2007) 84–88.

DOI: 10.1016/j.ultsonch.2005.11.010

[5] A.K. Shriwas, P.R. Gogate: Ultrasonic degradation of methyl Parathion in aqueous solutions: Intensification using additives and scale up aspects. Separation and Purification Technology. 79 (2011) 1-7.

DOI: 10.1016/j.seppur.2011.02.034

[6] L. Lin, Xie Minnan, Liang Yongmei: Degradation of cypermethrin, malathion and dichlorovos in water and on tea leaves with O3/UV/TiO2 treatment. Food Control. 28 (2012) 374-379.

DOI: 10.1016/j.foodcont.2012.05.009

[7] S.F. Xiong, Z.L. Yin, Z.F. Yuan, W.B. Yana, W.Y. Yang, J.J. Liu, F. Zhang: Dual-frequency (20/40 kHz) ultrasonic assisted photocatalysis for degradation of methylene blue effluent: synergistic effect and kinetic study, Ultrasonics Sonochemistry. 19 (2012).

DOI: 10.1016/j.ultsonch.2012.01.007