Removal color study of azo dye (4-4-antipyriyl azo 4-amino phenol)‎ from aqueous solution by using photo-Fenton oxidation

الملخص EN

Advanced oxidation processes are extensively used for the removal of organic constituents from water and wastewater.

The aim of this study was to show the parameters the effects of initial dye concentration, hydrogen peroxide dosage, pH, and Fenton reagent of azo dye.

It has been found that the removal rate increased as the initial concentration of H2O2 and ferrous ion increase to optimize value.

The degradation with UV/H2O2/ Fe2+ system was the fastest.

The degradation is fast with UV/H2O2/ Fe2+ system.

The best results were obtained from photo Fenton's reagent with efficiency more than 99% at pH= 6.5, [H2O2] = 300 mg/L, [Fe2+] = 150 mg/L.

The concentration of undegraded dye was detected by using parameters at λmax=391 nm.