Adsorption of Lead from Synthetic Solution using Luffa Charcoal

Authors: C. Umpuch, N. Bunmanan, U. Kueasing, P. Kaewsan

Abstract:

This work was to study batch biosorption of Pb(II) ions from aqueous solution by Luffa charcoal. The effect of operating parameters such as adsorption contact time, initial pH solution and different initial Pb(II) concentration on the sorption of Pb(II) were investigated. The results showed that the adsorption of Pb(II) ions was initially rapid and the equilibrium time was 10 h. Adsorption kinetics of Pb(II) ions onto Luffa charcoal could be best described by the pseudo-second order model. At pH 5.0 was favorable for the adsorption and removal of Pb(II) ions. Freundlich adsorption isotherm model was better fitted for the adsorption of Pb(II) ions than Langmuir and Timkin isotherms, respectively. The highest monolayer adsorption capacity obtained from Langmuir isotherm model was 51.02 mg/g. This study demonstrated that Luffa charcoal could be used for the removal of Pb(II) ions in water treatment.

Keywords: Lead (II), Luffa charcoal, Biosorption, initial pHsolution, contact time, adsorption isotherm.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1076300

References:

[1] W. Saikaew and P. Kaewsarn, "Cadmium ion removal using biosorbents derived from fruit peel wastes," Songklanakarin J Sci Technol, vol. 31, no.5, pp. 547-554, 2009.
[2] F. Y. Wang, H. Wang and J. W. Ma, "Adsorption of cadmium (II) ions from aqueous solution by a new low-cost adsorbent - Bamboo charcoal," J of Hazard Mater, vol. 177, pp. 300-306, 2010.
[3] L.J. Schep, J.S. Fountain, W.M. Cox, and G.R. Pesola, "Lead shot in the appendix," N Engl J Med, vol. 354, no. 16, pp. 1757, 2006.
[4] S.-Y. Wang, M.-H. Tsai, S.-F. Lo, and M.-J. Tsai, "Effects of manufacturing conditions on the adsorption capacity of heavy metal ions by Makino bamboo charcoal," Bioresour Technol, vol. 31, pp. 7027-7033, 2008.
[5] H. Lalhruaitluanga, K. Jayaram, M.N.V. Prasad, and K.K. Kumar, "Lead(II) adsorption from aqueous solutions by raw and activated charcoals of Melocanna baccifera Roxburgh (bamboo)-A comparative study," J of Hazard Mater, vol.175, pp. 311-318, 2010.
[6] S. Lagegren, B.K. Svenska, "Zur theorie der sogenannten adsorption geloester stoffe," Vaternskapsakad Handlingar, vol. 24, no.4, pp. 1-39, 1898.
[7] Y.S. Ho, G. McKay, "Sorption of dye from aqueous solution by peat," Chem. Eng. J., vol. 70, pp. 115 - 124, 1998.
[8] N. Feng, X. Guo, S. Liang, Y. Zhu, and J. Liu, "Biosorption of heavy metals from aqueous solutions by chemically modified orange peel," J of Hazard Mater, vol. 185, pp 49-54, 2011.
[9] V. Lugo-Lugo, S. Hernandez-Lopez, C. Barrera-Diaz, F. Urena-Nunez, and B. Bilyeu, "A comparative study of natural, formaldehyde-treated and copolymer-grafted orange peel for Pb (II) adsorption under batch and continuous mode," J of Hazard Mater, vol. 161, pp. 1255 - 1264, 2009.
[10] M. Ajmal, R. A. K. Rao, R. Ahmad, and J. Ahmad, "Adsorption studies on Citrus reticulate (fruit peel of orange): removal and recovery of Ni(II) from electroplating wastewater," J of Hazard Mater, vol. B79, pp. 117- 131, 2000.
[11] M. Iqbal, A. Saeed, and S. I. Zafar, "FIIR spectrophotometry, kinetics and adsorption isotherms modeling, ion exchange, and EDX analysis for understanding the mechanism of Cd2+ and Pb2+ removal by mango peel waste," J of Hazard Mater, vol. 164, pp. 161-177, 2009.
[12] J. Anwar, U. Shafique, W.-U. Zaman, M. Salman, A. Dar, and S. Anwar, "Removal of Pb(II) and Cd(II) from water by adsorption on peels of banana," Bioresour Technol, vol. 101, pp. 1752 - 1755, 2010.
[13] M.I. Temkin, V. Pyzhev, "Kinetic of ammonia synthesis on promoted iron catalyst," Acta physicochim. URss, vol. 12, pp. 327-356, 1940.