Fixed Bed Column Study and Adsorption Modelling on the Adsorption of Malachite Green dye from wastewater using Acid Activated Sawdust
- Professor, Department of Environmental Engineering, Delhi Technological University, New Delhi-42, India.
- Graduate Student, Department of Environmental Engineering, Delhi Technological University, New Delhi-42, India.
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The sorption capability of Acid Activated Sawdust for removing Malachite Green from wastewater was evaluated in a fixed bed column. The column experiment was conducted by varying the bed height, initial dye concentration and solution flow rate. An increase in bed depth extended the life of the column while an increase in flow rate and initial concentration exhausted the column earlier. Several column adsorption models were applied to the experimental data. The adsorption capacity using the Thomas model was found to be 10.06 mg/g. Among the various models applied the Bohart-Adam model fitted the experimental data well with an r2>0.9. The Yoon–Nelson model also estimated the 50% breakthrough curve and provided the estimate break-through time for the column systems. The results indicated that Acid Activated Sawdust could be used for adsorption of Malachite Green containing waste water.
[S.K. Singh, Dhruv Katoria, Dhruv Mehta, Dhruv Sehgal (2015); Fixed Bed Column Study and Adsorption Modelling on the Adsorption of Malachite Green dye from wastewater using Acid Activated Sawdust Int. J. of Adv. Res. 3 (Jul). 521-529] (ISSN 2320-5407). www.journalijar.com
