Title of article
Decomposition of a Diazo Dye in Aqueous Solutions by KMnO4 /UV/H2O2 Process
Author/Authors
Olya، M. E. نويسنده Assistant Professor, Department of Environmental Research , , Aleboyeh، H. نويسنده Professor, Group de Génie des Procédés de Traitement des Effluents, Laboratoire LPI, ENSCMu , , Aleboyeh، A. نويسنده Professor, Group de Génie des Procédés de Traitement des Effluents, Laboratoire LPI, ENSCMu ,
Issue Information
دوفصلنامه با شماره پیاپی 8 سال 2012
Pages
6
From page
41
To page
46
Abstract
T
his study examined the photolytic degradation of C.I. Acid Red 73(AR73), in aqueous solution by KMnO4/UV/H2O2 process. A continuous circulated photoreactor equipped with a UV lamp was used. (I) Potassium permanganate was used for decolourisation of AR73 dye solution. The stoichiometric amount of potassium permanganate required for 1 mol of AR73 complete color removal was determined (2.79 mol). In the acidic solution, 100% of AR73 color removal and near 10% dye mineralization have been observed in no more than 5 minutes. (II) After decolourisation period, UV/H2O2 system was applied for mineralization of the dye solution. Under the best operational conditions, after 180 minutes of UV irradiation, 90% of dye mineralization was observed. III) The results of this method were compared with those of obtained by using UV/H2O2 system (without KMnO4). It was found that within the same irradiation time, KMnO4/UV/H2O2 process is about 10% more effective for mineralization of AR73 dye solution. Prog. Color Colorants Coat. 5(2012), 41-46. © Institute for Color Science and Technology.
Journal title
Progress in Color, Colorants and Coating (PCCC)
Serial Year
2012
Journal title
Progress in Color, Colorants and Coating (PCCC)
Record number
678585
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