Isotherm Studies of Cu And Ni Biosorption Using Tobacco Waste

Due to rapid industrialization and globalization, environmental problems are increasing day-by-day. Therefore there exists great demand for removing heavy metals from the waste water. Many methods were available from literature for removing heavy metals from wastewater out of which Bioadsorption using Biomass is found to be more economical and ecofriendly compared to physico-chemical methods. In the present work, Tobacco waste is used as an adsorbent for removing heavy metals like Cu and Ni from waste water. Tobacco waste which contains high content of lignin can have high metal binding capacity. The effect of various parameters like PH, Biomass Dosage, Initial Metal Ion Concentration and Temperature on metal biosorption was studied. Biosorption experimental data is well described by both Freundlich and Langmuir Isotherm models. The experimental data obtained is well suited with the pseudo second order kinetics.