Abstract

P. Lalitha and S. Nithya Sangeetha

In the present work activated carbon prepared from water hyacinth is used as an adsorbent for adsorption of Rhodamine B. The process of adsorption of Rhodamine B onto activated carbon and the effect of concentration variation has been simulated by using the software program-'visual basic'. The maximum percentage (83%) of removal of dye was noted at 60min with 1mg/100ml of dye. Approximately 50% of dye removal was noted on varying the contact time (15 to 75min). The data on adsorption of dye to the adsorbent were found to fit well with the first order kinetics as modified by Lagergrens equation. Simulation studies done by Visual Basic program offer a means of studying the process of adsorption at varied dosage of adsorbent, concentration of dye etc.

Rhodamine B; activated carbon; water hyacinth

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