Abstract
AbstractHigh concentrations of reactive dyes in receiving waters pose a danger to the ecosystem due to unique properties such as high alkalinity and strong structural stability, which distinguish them from other dyes. This study aims to investigate the efficiency of the sono‐catalytic process combined with activated carbon/Fe3O4 and persulfate (PS/US/AC‐Fe3O4) in removing reactive blue 19 dye (RB 19) from aqueous solutions as well as to optimize the factors influencing removal efficiency. Activated carbon (AC) was prepared from worn‐out tires and Fe3O4 was synthesized using co‐precipitation. The optimization of the experiments and data analysis for RB 19 removal was conducted using the Box Behnken Design (BBD). The optimal values for pH, initial concentration, persulfate(PS)dosage, composite dosage, and reaction time were determined to be 3.1 mg/L, 22.4 mg/L, 1.34 g/L, 1.75 g/L, and 90 minutes, respectively. Based on variance analysis of the experimental results for various models, the second‐order kinetic model with a high correlation coefficient (R2 = 0.9685) and (Rajd2 = 0.9432) was selected for estimating dye removal using PS/US/AC‐Fe3O4 process. The percentage of chemical oxygen demand (COD) removal was found to be 68% under optimum conditions. Considering these results, this method can be applied to treat wastewater from industries that produce dye combinations.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call