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Journal of Applied Sciences
  Year: 2007 | Volume: 7 | Issue: 16 | Page No.: 2339-2344
DOI: 10.3923/jas.2007.2339.2344
 
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Kinetics of UV, Fenton and Photo Fenton Processes for Decolorization of Various Red CL-5B Dye Concentrations

Abdullah Yasar , Nasir Ahmad , Aamir Amanat Ali Khan , Hajira Khan and Mehwish Khalid

Abstract:
Decolorization of Red CL-5B azo dye was studied using UV, Fenton and Photo Fenton processes. The effect of initial dye concentration, FeSO4 dose, pH and variation in UV time on decolorization was investigated. UV radiation was carried out with a 108 W low-pressure mercury lamp. Increase in the ferrous dose beyond the optimal dose resulted in significant decrease in color removal efficiency. The optimal doses were found to be 20, 30 and 50 mg L-1 for 100, 300 and 500 mg L-1 dye concentrations, respectively. The highest decolorization was observed at pH 2. However, in acidic range (2-6) removal efficiency for particular dye concentration was almost same at particular settling time. For photo Fenton process UV irradiation time was doubled as the dye concentration was increased to furnish more than 90% removal efficiency. Color removal curves obeyed first order kinetics irrespective of dye concentration.
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How to cite this article:

Abdullah Yasar , Nasir Ahmad , Aamir Amanat Ali Khan , Hajira Khan and Mehwish Khalid , 2007. Kinetics of UV, Fenton and Photo Fenton Processes for Decolorization of Various Red CL-5B Dye Concentrations . Journal of Applied Sciences, 7: 2339-2344.

DOI: 10.3923/jas.2007.2339.2344

URL: https://scialert.net/abstract/?doi=jas.2007.2339.2344

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