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Ultrasonic intensification of ozone and electrochemical destruction of 1,3-dinitrobenzene and 2,4-dinitrotoluene


Reference:

Abramov, V. O., Abramov, O. V., Gekhman, A. E., Kuznetsov, V. M. and Price, G. J., 2006. Ultrasonic intensification of ozone and electrochemical destruction of 1,3-dinitrobenzene and 2,4-dinitrotoluene. Ultrasonics Sonochemistry, 13 (4), pp. 303-307.

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    Official URL:

    http://dx.doi.org/10.1016/j.ultsonch.2005.04.007

    Abstract

    The removal of nitroaromatics from polluted water is difficult due to their high stability to conventional treatment methods. This paper presents a method for the destruction of 1,3-dinitrobenzene and 2,4-dinitrotoluene in aqueous solutions. The compounds are shown to be stable to reaction with ozone, even under ultrasonic activation. The use of ultrasound enhances the rate of electrochemical reduction but the overall rate of reaction is still slow. However, the simultaneous application of ultrasound and ozonation to the electrochemical reaction allows virtually complete destruction of the compounds in short times. The effect is attributed to the ultrasonic enhancement of the electrochemical process giving intermediates that are susceptible to ozone oxidation. While further analytical work is needed to deduce the exact contributions of the various possible degradation mechanisms, the work demonstrates the synergies that can be gained by using combined techniques for the destruction of these difficult compounds.

    Details

    Item Type Articles
    CreatorsAbramov, V. O., Abramov, O. V., Gekhman, A. E., Kuznetsov, V. M. and Price, G. J.
    DOI10.1016/j.ultsonch.2005.04.007
    DepartmentsFaculty of Science > Chemistry
    Publisher StatementDRAFT_100_Ultrasonic_intensification_of_ozone_and_electrochemical_destruction_of_1_3_dinitrobenzene_and_2_4_dinitrotoluene.pdf: NOTICE: this is the author’s version of a work that was accepted for publication in Ultrasonics Sonochemistry. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Ultrasonics Sonochemistry, vol 13, issue 4, 2006, DOI 10.1016/j.ultsonch.2005.04.007
    RefereedYes
    StatusPublished
    ID Code4749

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