ADSORPTION OF MALACHITE GREEN DYE FROM AQUEOUS SOLUTION ON NEEM LEAF POWDERIndira Khatod and L.S. ThakurAbstract Dyes are present in mixture form in various Industrial effluents like Textile Industries, Sewage water, Water treatment plants. The objective of this work is the study of adsorption of dye solution malachite green using neem leaf powder. Liquid phase adsorption experiments were conducted. Batch adsorption studies are carried out by observing the effect of experimental parameters, namely amount of adsorbents, dye concentrations and contact time. Optimum conditions for dye removal are studied like contact time required, amount of adsorbent and dye concentration. Spectrophotometric technique was used for the measurement of concentration of dye before and after adsorption. Neem leaves were shown to be promising materials for adsorption removal of dye from aqueous solutions. The equilibrium time was found to be 18 min for maximum removal of 90-95% was obtained for an adsorbent dose of 0.3 g at 2.5×10-5 mg/L dye concentration. The results generated by this work can be used for determination of optimum conditions for adsorption of dye in aqueous solutions. This work could have use in Design of adsorption columns for dye removal.
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