Optimization of Astrazon Blue Adsorption onto Sulfunated Styrene-co-divinylbenzene Resin by Experimental Design Methodology

Finding the perfect absorbent for the removal of a color with higher absorbent capacity and attract more colors, and determining the optimum conditions for the use of absorbent for textile factories and the environment is of particular importance. The purpose of this study was to evaluate and optimize the adsorption of Astrazon blue cationic dye from aqueous solution using sulfunated styrene-co-divinylbenzene resin. The variable amount of time, the adsorbent dosage and dye concentration were optimized by experimental design method. Numbers of 15 experiment was designed with Response Surface Methodology (RSM) and use the Box-Behnken design (Box-Behnken) with Design Expert 7.0.0 Trial software by three factors: time, adsorbent dosage and dye concentration in three levels (, 0, 1) with three- center points. Each experiment was done with a certain dose of adsorbent in 10 mL solution containing cationic dye and the dye adsorbed was measured.