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Article Information:
Dechlorination of 3-Chlorobiphenyl by nZVI Particles Prepared in the Presence of 20 kHz Ultrasonic Irradiation
Deming Zhao, Zhonghai Chen and Xinchun Wu
Corresponding Author: Deming Zhao
Submitted: September 28, 2012
Accepted: November 23, 2012
Published: May 15, 2013 |
Abstract:
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Nanoscale zero-Valent Iron (nZVI) particles were prepared in the presence of 20 kHz ultrasonic irradiation in order to enhance disparity and reactivity and simultaneously avoid agglomeration. Dechlorination of 3-chlorobiphenyl (3-Cl BP) by nZVI particles was investigated to understand its feasibility for an in situ remediation of contaminated groundwater. Experimental results showed that the induction of ultrasound during the preparation of nZVI further enhanced the removal efficiency of 3-Cl BP, meanwhile the Biphenyl (BP) formation rates increased obviously. The dechlorination rate was dependent on various factors including nZVI dosage, reaction temperature and initial pH values. The degradation of 3-Cl BP followed pseudo-first-order kinetics reaction.
Key words: 3-Chlorobiphenyl (3-Cl BP), dechlorination, kinetics, nanoscale Zero-Valent Iron (nZVI), ultrasound , , ,
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Cite this Reference:
Deming Zhao, Zhonghai Chen and Xinchun Wu, . Dechlorination of 3-Chlorobiphenyl by nZVI Particles Prepared in the Presence of 20 kHz Ultrasonic Irradiation. Research Journal of Applied Sciences, Engineering and Technology, (20): 4914-4919.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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