The Potential of Luffa cylindrica for Crude Oil Adsorption from Water: Kinetic, Equilibrium and Thermodynamic Study
*Corresponding Author: Shittu TD, Department of Chemical and Petroleum Engineering, United Arab Emirates University, Al Ain, UAE, Tel: + 971545440769, Email: stoyindaniel@gmail.comReceived Date: Jul 02, 2020 / Accepted Date: Jul 13, 2020 / Published Date: Jul 20, 2020
Citation: Shittu TD, Aransiola EF, Alabi-Babalola OD (2020) The potential of Luffa cylindrica for crude oil adsorption from water: kinetic, equilibrium and thermodynamic study. J Bioremediat Biodegrad 11:473.
Copyright: © 2020 Shittu TD. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
The efficiency of Luffacy lindrica for crude oil removal is reported. Adsorption parameters used were initial oil concentration (5-8 g/l), Luffa weights (0.5-2.5 g), contact time (15-105 sec), and temperature (20-50°C). The FTIR and SEM results showed that the surface properties of the Luffa are suitable for crude oil adsorption. The optimum crude oil removed was obtained at 20°C, reaching 82 % at the weight of 2.0 g and the lowest value was at 50°C, reaching a lowest value of 13 % at the weight of 0.5 g. The experimental results agreed with the isotherm of Langmuir and the Pseudo-second order was the best kinetics model. The diffusion mechanism study supports both liquid film and intra-particle diffusions during the adsorption. The time dependent of the process showed an immediate rapid crude oil uptake. The exothermic propensity of the process was confirmed from thermodynamic parameters evaluated. A ∆H○ (-83.673 KJ/mol) was obtained and the ∆G○ values was negative at the temperature of 20°C (-3.754 KJ/mol) and at 50°C, the value increased to 3.754 KJ/mol, suggesting that the process is not feasible at elevated temperature.
