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  • Title: [Study on ultrasound-assisted decolorization of methyl orange with Fenton reagent].
    Author: Tao CY, Liu ZH, Li XH, Du J, Si XJ, Zhu J.
    Journal: Huan Jing Ke Xue; 2005 Sep; 26(5):111-4. PubMed ID: 16366480.
    Abstract:
    Employed with ultrasound, Fenton reagent, ultrasound-Fenton methods, performance and mechanism of decolorization and COD removal were investigated for methyl orange. Results indicated that little decolorization phenomenon was observed with ultrasound solely. For 400mg/L methyl orange solution, 67.51% decolorization ratio and 63.15% COD removal ratio were obtained with Fenton reagent for 30 min. Combined the same operation conditions with ultrasonic field, decolorization ratio and COD removal ratio are 86.91% and 80.32%, respectively. Ultrasound and Fenton reagent have synergistic action on degradation of methyl orange solution. It is oxidative reaction for methyl orange solution with Fenton reagent in strong acidic condition, and it is reduction process for the degradation when pH>5.
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