Modeling And Optimizing Acid Cyanine 5r Removal From Aqueous Solutions Using Immobilized Mgo Nanoparticles On Glass

In this study, the nanoadsorbents were immobilized on an inert support (glass) to minimizetheir release to the environment. The initial dye concentration (acid cyanine 5R, an azo dye), pH and contact time parameters were optimized using central composite design under response surface methodology. The experiments weredone in a 10 liter glass reactor with MgO nano (as good dye adsorbent) coated glass partitions. COD and dye removal efficiency were determined by assessing before and after the adsorption. The COD removal efficiency and the remaining dye were close-fitting well to thequadratic model in the experimentations range of variables. The experimental study showed that fixed MgO on the glass waseffective in AC 5R adsorption.The optimal operating point (initial dye=30 mgl(-1), pH= 9 and contact time= 90 min) giving maximum dye and COD removal was found using DesignExpert 7.0.0 software (85% and 83%, respectively).