9th International Science Congress (ISC-2019).  International E-publication: Publish Projects, Dissertation, Theses, Books, Souvenir, Conference Proceeding with ISBN.  International E-Bulletin: Information/News regarding: Academics and Research

Equilibrium, Thermodynamic and Kinetic Studies on the Adsorption of lead(II) from Solution by "Agbani Clay"

Author Affiliations

  • 1Department of Chemistry (Industrial), University of Ibadan, Ibadan, Oyo State, NIGERIA
  • 2 Projects Development Institute (PRODA), Emene Industrial Layout, Enugu, NIGERIA
  • 3 Dept of Chemical Engineering, Enugu State University of Science and Technology (ESUT), Enugu, NIGERIA

Res. J. Engineering Sci., Volume 1, Issue (6), Pages 9-17, December,26 (2012)

Abstract

This paper describes the adsorption of Lead(II) ions from solution by Agbani clay obtained from Nkanu west local government area, Enugu state, Nigeria. The aim of this study was to investigate the potential of Agbani clay as a low-cost adsorbent for Lead(II) ions from industrial wastewaters. The adsorption experiment was performed using batch technique to investigate the effect of pH, initial metal ion concentration, temperature and time. All these parameters proved to be useful in the description of the adsorption process. An optimum pH of adsorption was achieved at 6.0. Equilibrium isotherm models showed the Freundlich isotherm with the best fit as indicated by the regression coefficient R2 value of 0.9891, this was followed by the Temkin isotherm, (0.9121) and the least the Langmuir isotherm (0.8687). Kinetic studies revealed the Pseudo-second order with the best fit of 0.9982, although a good fit was also obtained (0.9924) by the Pseudo-first order model. Thermodynamic analysis showed a spontaneous adsorption process as negative values of ΔG° were obtained at all temperatures. The positive enthalpy change ΔH° , (14.37KJ/mol) indicated an endothermic process and an increase in adsorption with increase in temperature was observed. A highly disordered process was indicated by the positive entropy change ΔS° (62.75J/molK). The results showed the applicability of Agbani clay as a low cost adsorbent for lead(II) ions from aqueous solution.

References

  1. Shan H.Y., Wase D. and Forster C., Removal of Lead Ions from Aqueous Solution Using Sphagnum Moss Peat Adsorbent, Water. SA, 22, 219-224 (1996)
  2. Abdus-Salam N. and Adekola F.A., The Influence of pH and Adsorbent Concentration on Adsorption of Lead and Zinc on a Natural Goethite, AJST, , 55-66 (2005)
  3. Abia A.A. and Asuquo E.D, Lead(II) and Nickel(II) Adsorption Kinetics from Aqueous Metal Solution Solution Using Chemically Modified and Unmodified Agricultural Adsorbents, Afr.J. Biotechnol, 5(6), 1475-1482 (2006)
  4. Solener M., Tunali S., Ozcan A.S., Ozcan A. and Gedikbey T., Adsorption Characteristics of Lead(II) Ions onto the Clay/Poly (Methoxyethyl) Acrylamide (PMEA) Composite From Aqueous Solutions, Desalination, 223, 308-322 (2008)
  5. Ucun H., Bayhan Y.K., Kaya Y., Cakici A. and Algur O.F., Biosorption of Lead(II) From Aqueous Solution by Cone Biomass of Pinus Sylvestris, Desalination, 154(3), 253-238 (2008)
  6. Dubey S.S. and Gupta R.K., Removal Behavior of Babool Bark (Acacia Nilotica) for Submicro Concentrations of Mercury(II) From Aqueous Solution: A Radiotracer Study, Sep. Purif. Technol, 41(1), 21-28 (2005)
  7. Gottipati R. and Mishra S., Application of Response Surface Methodology for Optimization of Cr(III) and Cr(VI) Adsorption on Commercial Activated Carbons, Res. J. Chem. Sci, 2(6), 6-11 (2012)
  8. Kinhikar V.R., Removal of Nickel(II) from Aqueous Solution by Adsorption with Granular Activated Carbon (GAC), Res. J. Chem. Sci, 2(6), 6-11 (2012)
  9. Bhise R.M., Patil A.A., Raskar A.R., Patil P.J. and Deshpande D.P., Removal of Colour of Spent Wash by Activated Charcoal Adsorption and Electro-coagulation, Res. J. Recent. Sci, 1(6), 66-69 (2012)
  10. Sharifirad M., Koohyar F., Rahmanpour S.H. and Vahidifar M., Preparation of Activated Carbon From Phragmites Australis: Equilibrium Behavior Study, Res. J. Recent. Sci, 1(8), 10-16 (2012)
  11. Nwabanne J.T. and Igbokwe P.K., Preparation of Activated Carbon from Nipa Palm Nut: Influence of Preparation Conditions, Res. J. Chem. Sci, 1(6), 53-58 (2011)
  12. Ekpete O.A. and Horsfall M. JNR, Preparation and Characterization of Activated Carbon Derived From Fluted Pumpkin Stem Waste (Telfaira Occidentalis Hook F), Res. J. Chem Sci, 1(3), 10-17 (2011)
  13. Mangale S.M., Chonde S.G. and Raut P.D., Use of Moringa Oleifera (Drumstick) Seed as Natural Adsorbent and an Antimicrobial Agent For Ground Water Treatment, Res. J. Recent. Sci, 1(3), 31-40 (2012)
  14. Theivarasu C., Mylsamy S. and Sivakumar N., Adsorption Removal of Crystal Violet Dye Using Agricultural Waste Cocoa (Theobroma Cacao) Shell, Res. J. Chem. Sci, 1(7), 38-45 (2011)
  15. Shabudeen P.S.S., Study of the Removal of Malachite Green From Aqueous Solution by Using Solid Agricultural Waste, Res. J. Chem. Sci, 1(1), 88-104 (2011)
  16. Akpomie G.K., Ogbu I.C., Osunkunle A.A., Abuh M.A. and Abonyi M.N., Equilibrium Isotherm Studies on The Sorption of Pb(II) From Solution by Ehandiagu Clay, J. Emerg. Trend. Eng. App. Sci, 3(2), 354-358 (2012)
  17. Holan Z.R. and Volesky B., Biosorption of Lead and Nickel by Biomass of Marine Algae, Biotechnol.Bioeng, 43(11), 1001-1009 (1994)
  18. Das B. and Mondal N.K., Calcareous soli as a New Adsorbent to Remove Lead from Aqueous Solution: Equilibrium, Kinetic and Thermodynamic Study, Uni. J. Environ. Res. Technol, 1(4), 515-530 (2011)
  19. Anayurt R.A., Sari A. and Tuzen M., Equilibrium, Thermodynamic and Kinetic Studies on Biosorption of Pb(II) and Cd(II) From Aqueous Solution by Macrofungus (Lactarius Scrobiculatus) Biomass, Chem. Eng., 151, 255-261 (2009)
  20. Vimalar R. and Das N., Biosorption of Cadmium(II) and Lead(II) From Aqueous Solution Using Mushrooms: A Comparative Study, J. Hazard. Mater,168, 376-382 (2009)
  21. Trybal R.E., Mass Transfer Operations, Second Edition, Mc Graw, New York (1968)
  22. Akpomie G.K., Abuh M.A., Ogbu I.C., Agulanna A.C. and Ekpe I.O., Adsorption of Cadmium(II) From Solution By nsu Clay:Kinetic and Thermodynamic Studies, J. Emerg. Trend. Eng. App. Sci, 3(2), 254-258 (2012)
  23. Johnson B.B., Effect of pH, Temperature and Concentration on The Adsorption of Cadmium on Goethite, Environ. Sci. Technol, 24, 112-118 (1990)
  24. Langmuir I., The Adsorption of Gases on Plane Surfaces of Glass, Mica and Platinum, J. Am. Chem. Soc,40, 1361-1368 (1918)
  25. Choy K.K.H., Mckay G. and Porter J.F., Sorption of Acid Dyes From Effluents Using Activated Carbon Resources, Conservation and Recycling, 27, 57-71 (1999)
  26. Res. J. Engineering Sci.International Science Congress Association 1726.Freundlich H.M.F., Over the Adsorption In Solution, J. Phys. Chem, 57, 385-471 (1906)
  27. Kadirvelu K. and Namasivayam C, Utilization of Various Agricultural Waste For Activated Carbon Preparation and Application For The Removal of Dyes and Metal Ions From Aqueous Solutions, Environ.Technol, 21(10), 1091-1097 (2000)
  28. Lagergren S., About The Theory of So-Called Adsorption of Soluble Substances, Kungliga Svenska Vertenskapsakademiens, Hand Linger, 24(4), 1-39 (1898)
  29. Ho Y.S. and Mckay G., The Kinetics of Sorption of Divalent Metal Ions Onto Sphagnum Moss Peat, Water.Res, 34(3), 735-742 (2000)
  30. Argun M.E., Dursun S., Ozdemir C. and Karatas M., Heavy Metal Adsorption by Modified Oak Sawdust: Thermodynamics and Kinetics, J. Hazard. Mater141, 77-85 (2007)