@article{MAKHILLRJAS2008338915,
    title = {Decoloration of the Reactive Blue Dye, KN-R},
    journal = {Research Journal of Applied Sciences},
    volume = {3},
    number = {3},
    pages = {216-224},
    year = {2008},
    issn = {1815-932x},
    doi = {rjasci.2008.216.224},
    url = {https://makhillpublications.co/view-article.php?issn=1815-932x&doi=rjasci.2008.216.224},
    author = {H. Gabriel and},
    keywords = {KN-R dye,fenton,UV-fenton,decoloration},
    abstract = {The oxidation using UV-Fenton reagent has been found to be a promising treatment method for the effective decolorization and degradation of dyes. The decolorization of the reactive blue dye KN-R was investigated using Fenton and UV/Fenton processes. The effects of solution pH, initial dye, H<SUB>2</SUB>O<SUB>2</SUB>, Fe<SUP>2+</SUP> concentrations, respectively, were studied and optimal conditions determined. The optimized treatment conditions are the following: pH 3.0, 30 mg L <SUP>1</SUP> (Fe<SUP>2+</SUP>), 10.2 g L <SUP>1</SUP> (H<SUB>2</SUB>O<SUB>2</SUB>) for a reaction time of 30 min. The KN-R dye degradation was found to be dependent on the dye concentration such that the higher the dye concentration, the lower the decoloration and degradation efficiencies. The UV/Fenton process showed higher decoloration rate than the Fenton process and 98% was achieved in about 10 min of the reaction time. The effect of iron source and NaCl were studied. Finally, kinetics involved in KN-R degradation were also calculated and the rate constants were found to be proportional to hydrogen peroxide concentration as well as ferrous ions concentration.}
    }