Decolourisation of textile dyeing Wastewater by modified solar Photo-Fenton Oxidation
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چکیده
In a laboratory study, decolourisation of real textile dyeing wastewater by modified solar photo-Fenton (Steel scrap/ H2O2 ) process under irradiation with sunlight was examined. Batch experiments were conducted to determine optimal operating conditions .The optimal doses of H2O2 and steel scrap were 15 mL/L and 1 g/L, respectively at pH 3.Colour removal of 89% was obtained under optimum conditions. These results suggest that, the modified solar photo-Fenton process proved to be efficient for decolourisation of the real textile dyeing wastewater. A simplified mechanism of hydroxyl radical production in the presence of steel scrap as a catalyst has been proposed. The morphologic analysis and mapping of the elementary composition of Steel scrap used as a catalyst was determined by scanning electronic microscopy.
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