Removal of Anionic Brown 14 and Cationic Blue 41 dyes via Fenton Process

Textile wastewater contains a number of dyes which are known to be toxic and carcinogenic. In this study the results show that the Fenton (Fe2ﱽ) process is an efficient method for the removal of Acid Brown 14 (A.BR14) and Cationic Blue 41 (C.B41) dyes from textile wastewater. In this method, two reagents Fe2 and H2O2 are used and do not require any additional energy. Several experiments showed that the pH level was an important parameter for this method. Fe2 concentration was also an important factor in the experiment. The UVVisible spectrophotometer analysis was used for verifying the results. Some of the important parameters were as follows. Initial dye concentration range: 50-500 mg/L, initial volume range: 50-500mL, initial pH: 3-5, concentration of Fe2 as a catalyst: 4-18 mg/L, dose of H2O2 as an oxidant: 1.13, 2.26, 3.39g/L, and limitation time: 3-18 minutes. An efficiency of greater than 99% was observed for both dyes.