International E-publication: Publish Projects, Dissertation, Theses, Books, Souvenir, Conference Proceeding with ISBN.  International E-Bulletin: Information/News regarding: Academics and Research

Effect of Metal Ion Concentration on the Biosorption of Al3+ and Cr6+ by Almond Tree (Terminalia catappa L.) Leaves

    , , ,

Author Affiliations

  • 1 Department of Chemistry, Delta State University, Abraka, Delta State, NIGERIA
  • 2Department of Chemistry, University of Portharcourt, River State, NIGERIA

Res.J.chem.sci., Volume 3, Issue (11), Pages 1-6, November,18 (2013)

Abstract

The influence of initial metal ion concentration of the batch sorption of Al3+ and Cr6+ onto a low-cost biosorbent was investigated. The experimental results were analysed in terms of Langmuir and Freundlich isotherms. According to the evaluation using Langmuir equation, the monolayer sorption capacity obtained were 1.12mg/g and 2.67mg/g for Al3+ and Cr6+ respectively. The data further showed that sorption of the two metals onto the biomass increased with increase in initial metal ion concentration. The thermodynamic assessment of the metal ion – almond tree (Terminalia catappa L. biomass system indicates the feasibility and spontaneous nature of the process. ΔG° was evaluated as ranging from -4.56 to – 6.64 KJ mol-1 and –4.03 to -6.10 KJ mol-1 for Al3+ and Cr6+ sorption respectively. The order of magnitude of the ΔG° values indicates an ion exchange physiosorption process.

References

  1. Kratochivi D. and Volesky B., Wat. Res., 32, 2760 (1998)
  2. Viraragharan T. and Rao G.A.K., Adsorption of Cadmium and Chromium from wastewater by Flyash, J. Environ. Sci. Health, 26, 721-753 (1991)
  3. Vinod V.P. and Antrudhan T.S., Sorption of Tanic acid on zirconium pillared clay, J.Journal of Chemical Technology and Biotechnology, 77, 92-101 (2001)
  4. Quek S.Y., Wase D.A.J. and Forster C.F., The use of Sago waste for the sorption of lead and copper, Water S.A., 24(3), 251-256 (1998)
  5. Abia A.A., Horsfall M. Jnr. and Didi O., The use of chemically modified and unmodified cassava waste for the removal of Cd, Cu and Zn ions from aqueous solution, Bioresource Technology, 90(3), 345-348 (2003)
  6. Low K.S., Lee C.K. and Leo A.C., Removal of metals from electroplating wastes using banana pith, Bioresource Technology, 51(2-3), 227-231 (1995)
  7. Gardea-Torresdey J.L., Gonzalez J.H., Tiemann K.J., Rodriguez O. and Gamez G., Phytofiltration of hazardous cadmium, chromium, lead and zinc ions by biomass of Medicago sativa (Alfalfa), Journal of Hazardous Materials, 57(1-3), 29-39 (1998)
  8. Ho Y.S., John Wase D.A. and Forster C.F., Batch nickel removal from aqueous solution by Spagnum Moss Peat,Water Research, 29(5), 1327-1332 (1995)
  9. Okiemen F.E., Maya A.O. and Oriakhi C.O., Sorption of Cadmium, Lead and Zinc ions on sulphur-containing chemically modified cellulosic materials, Int. J. Environ. anal Chem.,32, 23-7 (1987)