Wastewater treatment by using solar photocatalytic process for removing azo dyes solution

Abstract

Wastewater from dyeing process contains a large variety of water-soluble chemical products. Photocatalytic process as an environmentally friendly process will destroys pollutants in the wastewater treatment and merely transferring them to others phase without the use of potentially hazardous. The solar photocatalytic process was knotted to remediate the azo dyes solution in wastewater treatment. There are four parameters that were observed in term of effect such as initial concentration, catalyst loading, initial pH and solar irradiation. This study involved zinc oxide as catalyst and six hours of reaction time were taken. The result indicates that reactive red 120 was higher degradation of dye than methyl orange within six hours reaction time.