Degradation of safranin by heterogeneous Fenton processes using peanut shell ash based catalyst.

Today, dyes are one of the major problematic pollutants in the environment and are broadly used in several industrial sectors. In the current research work, decolorization of safranin (basic dye) from aqueous solution was investigated using iron-impregnated peanut shell ash (Fe-PSA) as a catalyst in the UV-assisted heterogeneous Fenton process (Fe-PSA/HO/UV). The effect of parameters such as HO concentration, catalyst dose, pH, initial dye concentration, temperature, and agitation speed was studied.