Decolourization of Methylene Blue by Persulfate

Wei Hu; Shen Xin Li; Cheng Duan Wang

doi:10.4028/www.scientific.net/AMR.634-638.76

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 634-638Decolourization of Methylene Blue by Persulfate

Decolourization of Methylene Blue by Persulfate

Abstract:

The decolourization of dye wastewater by persulfate was studied using methylene blue as a model dye wastewater. Effects of several parameters, such as dose of oxidant, ionic strength, pH, temperature and UV irradiation, were investigated in detail. The results showed that the decolourization reaction of methylene blue by persulfate could be fitted to a pseudo-first order kinetics model. In addition, when the oxidant amount used is 2 times of methylene blue, pH 3.43 and reaction temperature for 60°C, after uv light under the irradiation of 20 min, methylene blue decolorization rate can reach more than 98%. The results are useful for the treatment of dye wastewater.

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Periodical:

Advanced Materials Research (Volumes 634-638)

Pages:

76-80

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.634-638.76

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Online since:

January 2013

Authors:

Wei Hu, Shen Xin Li, Cheng Duan Wang

Keywords:

Decolorization, Methylene Blue (MB), Persulfate

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