Thermodynamics and Equilibrium Studies on the removal of Methyl Violet by Ulva Lactuca Algae

N. Manikandakumar; K. Ananthakumar

Volume : VI, Issue : I, January - 2016

Thermodynamics and Equilibrium Studies on the removal of Methyl Violet by Ulva Lactuca Algae

N. Manikandakumar, K. Ananthakumar

Abstract :

Batch adsorption experiment was carried out using a novel adsorbent Ulva lactuca (UL) for the removal of Methyl violet (MV) from aqueous solution. Potential of UL for adsorption of MV was considered to be excellent. Effect of adsorbent dosage, concentration, and temperature was studied. Freundlich, Langmuir and Temkin isotherm models were used to test the equiliium data. The best fitting isotherm models were found to be Langmuir. Thermodynamic analysis showed negative values of ΔG indicating adsorption was favourable and spontaneous, positive values of ΔH indicating endothermic physical adsorption and positive values of ΔS indicating increased disorder and randomness at the solid solution interface of MV with the adsorbent UL.