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Vol.3 , No. 2, Publication Date: Mar. 14, 2016, Page: 62-67
 from Aqueous Solutions&description=Citric acid pretreated corncob and the untreated one were used in this investigation to remove Mn(II) from aqueous solutions. The effects of pH, Mn(II) concentration, agitation time, adsorbent dose and particle size were evaluated. Equilibrium isotherms were analyzed by the Langmuir and Freundlich models and it was found that both models fit the experimental data (<i>R<sup>2</sup></i> values > 0.900). The kinetics of Mn(II) on both sorbents are in accord with the pseudo-second-order kinetics with a good correlation (<i>R<sup>2</sup></i> > 0.99).&picture=http://www.aascit.org/aascit/decorators/img/journal/924.jpg)
| [1] | Aref A. M. Aly, Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt. |
| [2] | Abdelhey A. Farrag, Geology Department, Faculty of Science, Assiut University, Assiut, Egypt. |
| [3] | Dalia Moatism, Assiut University Mycological Centre, Assiut University, Assiut, Egypt. |
| [4] | Sedky H. A. Hassan, Botany Department, Faculty of Science, New Valley Branch, Assiut University, Al-Kharja, Egypt. |
Citric acid pretreated corncob and the untreated one were used in this investigation to remove Mn(II) from aqueous solutions. The effects of pH, Mn(II) concentration, agitation time, adsorbent dose and particle size were evaluated. Equilibrium isotherms were analyzed by the Langmuir and Freundlich models and it was found that both models fit the experimental data (R2 values > 0.900). The kinetics of Mn(II) on both sorbents are in accord with the pseudo-second-order kinetics with a good correlation (R2 > 0.99).
Keywords
Citric Acid Treated Corncob, Mn(II) Adsorption, Adsorption Isotherms
Reference
| [01] | E. Baldman, L. Erijman, F. L. P. Pessoa, S. G. F. Leite, Continuous biosorption of Cu and Zn by immobilized waste biomass Sargassum Sp. Process Biochem., 36 (2001) 869-873. |
| [02] | K. S. Low, C. K. Lee, S. C. Liw, Sorption of cadmium and lead from aqueous solution by spent grain, Process Biochem, 36 (2000) 59-64. |
| [03] | USEPA, "Integrated Risk Information System (IRIS) on Manganese" National Center for Environmental Assessment (1999), available at http://www.Epa.gov/iris/subst/0373.htm. |
| [04] | O. J. Esalah, M. E. Weber, J. H. Vera, Removal of lead, cadmium and zinc from aqueous solutions by precipitation with sodium di-(n-octayl) phosphinate, Can. J. Chem. Eng, 78 (2000) 948-954. |
| [05] | L. Canet, M. Ilpide, P. Seta, Efficient facilitated transport of lead, cadmium, zinc and silver across a flat sheet-supported liquid membrane mediated by lasalacid A. Sep. Sci. Technol., 37 (2002) 1851-1860. |
| [06] | A. K. Chakravarti, S. B. Chowdhury, S. Chakrabarty, T. Chakrabarty. D. C. Mukberjee, Liquid membrane multiple emulsion process of chromium (VI) separation from wastewaters. Colloids Surfaces A: Physicochemical Engineering Aspects, 103 (1995) 59-71. |
| [07] | P. Miretzky, A. Saralegyi, A. F. Cirelli, Simultaneous heavy metal removal mechanism by dead macrophytes, Chemosphere., 62 (2006) 247-254. |
| [08] | a) A. I. Adeoyun, A. E. Ofudje, M. Iowu, S. O. Kareen, Equilibrium, kinetic, and thermodynamic studies of the biosorption of Mn(II) ions from aqueous solution by raw and acid treated corncob biomass, BioResources 6 (2011) 4117-4134. b) S. A. Ahmed, A. M. El-Roudi, A. A. A. Salem, Removal of Mn(II) from ground water by solid wastes of sugar industry, J. Environ. Sci. Technol., 8(2015)338-351. c) N. Esfandiar, B. Nasernejad, T. Ebadi, Removal of Mn(II) from groundwater by sugarcane bagasse and activated carbon (a comparative study): Application of Response Surface Methodology (RSM), J. Ind. Eng. Chem., 20 (2014) 3726-3736. |
| [09] | F. Mureed, R. Nadeem, A. Mehmod, Biosorption of zinc by chemically modified biomass of corncob (Zeamays L.), Middle-Eeast J. Scient. Res., 11 (2012) 1226-1231. |
| [10] | F. A. Dawodu, K. G. Akpomie, Simultaneous adsorption of Ni(II) and Mn(II) ions from aqueous solution into a Nigerian kaolinite clay, J. Mater. Res. Technol., 3 (2014) 129-141. |
| [11] | S. Gupta, B. V. Babu, Utilization of waste product (tamarind seeds) for the removal of Cr(VI) from aqueous solutions: Equilibrium, Kinetics and generation studies, J. Environ. Managem., 90 (2009) 3013-3022. |
| [12] | A. Shukla, Y. H. Zhang, P. Babey, J. L. Margrave., S. S. Shukla, The role of sawdust in the removal of unwanted materials from water, J. Hazard. Mater., B95 (2002) 137-152. |
| [13] | W. J. Weber Jr, J. C. Morris, Kinetics of adsorption on carbon from solution, Jessant Engg. Div ASCE, 89 (1963) 31-59. |
| [14] | K. Kannan, M. M. Sundaram, Kinetics and mechanism various carbons: A comparable study, Dyes and Pigments, 51 (2001) 25-40. |
