Research Article | OPEN ACCESS
Dechlorination of 3-Chlorobiphenyl by nZVI Particles Prepared in the Presence of 20 kHz Ultrasonic Irradiation
Deming Zhao, Zhonghai Chen and Xinchun Wu
College of Chemical Engineering and Materials Science, Zhejiang University of Technology,
310032, Hangzhou, People’s Republic of China
Research Journal of Applied Sciences, Engineering and Technology 2013 20:4914-4919
Received: September 28, 2012 | Accepted: November 23, 2012 | Published: May 15, 2013
Abstract
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.
Keywords:
3-Chlorobiphenyl (3-Cl BP), dechlorination, kinetics, nanoscale Zero-Valent Iron (nZVI), ultrasound,
Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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