The comparison of sonochemistry, electrochemistry and sonoelectrochemistry techniques on decolorization of C.I Reactive Blue 49

In this paper, the ability of three decolorization techniques including sonochemistry, electrochemistry and sonoelectrochemistry for decolorization of C.I Reactive Blue 49 in aqueous solutions have been compared. Various parameters affecting decolorization efficiency, such as pH, initial concentrati...

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Bibliographic Details
Published in:Ultrasonics sonochemistry 2015-11, Vol.27, p.609-615
Main Authors: Radi, M. Amin, Nasirizadeh, Navid, Rohani-Moghadam, Masoud, Dehghani, Mohammad
Format: Article
Language:English
Subjects:
COD
Decolorization
Degradation
Reactive dye
Sonoelectrochemical
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Summary:In this paper, the ability of three decolorization techniques including sonochemistry, electrochemistry and sonoelectrochemistry for decolorization of C.I Reactive Blue 49 in aqueous solutions have been compared. Various parameters affecting decolorization efficiency, such as pH, initial concentration of the dye, the decolorization time, H2O2 concentration and effect of applied potential on electrochemistry and sonoelectrochemistry, were evaluated. For further comparison, the methods were evaluated based on their ability in COD removal percentage. The maximum COD removal at the optimum condition of each method were 36.0%, 68.0%, 87.8% and 76.2% for sonochemistry, electrochemistry, sonoelectrochemistry with H2O2 and sonoelectrochemistry without H2O2, respectively. The result was an environment friendly method for removal of C.I Reactive Blue 49 from aqueous solutions.
ISSN:1350-4177
1873-2828
DOI:10.1016/j.ultsonch.2015.04.021