DefinePK

Abstract

In many developing countries such as Indonesia, one of a great potential area which will continue to grow is textile industry. These industries usually utilized artificial color, also known as synthetic dyes, in their manufacture production. The synthetic dyes contained in wastewater generated from textile industrial processing were refractory to degrade and toxic to human. The Reactive Red 2, as one of the important synthetic dye was used as a model organic pollutant in this research. However, Advanced Oxidation Processes (AOPs) have shown great potential in treating pollutant such as the treatment of textile dyes. In this study, degradation of RR 2 was examined by using Fenton and photo-Fenton oxidation processes, as one of H2O2-based AOPs. The RR2 concentration of 150-300 ppm, [Fe2+]/[H2O2] molar ratio of 1:20-1:80, and reaction time of 0-20 minutes were investigated on the degradation of dye in term of color and Chemical Oxygen Demand (COD) removal. The degradation of color and COD were strongly in?uenced by the initial concentration of dye, the [Fe2+]/[H2O2] molar ratio, and the reaction time. The color degradation of 69% was reached within 20 minutes of reaction by using Fenton process for all molar ratio of 150 ppm of RR 2 concentration usage. While the color degradation of 99.9% was obtained only in 10 minutes of reaction by using photo-Fenton process at [Fe2+]/[H2O2] molar ratio of 1:80, and also a maximum COD degradation of 95% was achieved when using RR 2 concentration of 150 ppm within 10 minutes of reaction.