Abstract
Micro-beads have been prepared from naturally occurring polymers, sodium alginate (an anionic polysaccharide). Beads forming technique applied in this study is based on the principle that a laminar liquid jet is broken into equally sized droplets by a superimposed vibration. The efficiency of alginate beads for removal of methylene blue (MB) dye from effluents in dynamic batch mode has been investigated. Parameters affecting dye removal such as beads size and pH, and thus adsorption kinetics have been studied. The prepared alginate beads showed a high adsorption capacity for MB, where they removed up to 85% of the initial dye concentration throughout twenty minutes. Moreover, a mathematical model has been developed to explore mechanism removal of dye by these porous polymeric beads. The flow pattern through such porous beads has been resolved using Navier Stock equations and couple the equations of motion with mass balance equations through the multiphysics module (COMSOL).