Abstract
Cr(III) ions sorption onto sawdust of spruce (Picea smithiana) has been studied thoroughly using radiotracer technique. Maximum sorption (94%) of Cr(III) ions (8.98×10−5 M) onto sorbent surface is achieved from deionized water in 20 min agitation time using 200 mg of sawdust. The sorption data followed the Freundlich, Dubinin-Radushkevich (D-R) and Langmuir isotherms. Freundlich constants l/n = 0.86 ± 0.07 and Ce = 85.0 ± 25.8 mmole g−1 have been estimated. Sorption capacity, Xm = 0.82± 0.3 mmole g−1, β = −0.00356± 0.00017 kJ2 mole−2 and energy, E = 11.9± 0.3 kJ mole−1 have been evaluated using D-R isotherm. The Langmuir constants Q = 5.8± 0.2 μmole g−1 and b = (7.4± 0.5)×104 dm3 mole−1 have been calculated. The variation of sorption with temperature yields thermodynamic parameters Δ H = −11.6± 0.3 kJ mole−1, Δ S = −16.2± 0.9 J mole−1 K−1 and Δ G = −6.8± 0.3 kJ mole−1 at 298 K. The negative value of enthalpy and free energy reflect the exothermic and spontaneous nature of sorption respectively. Among the anions studied oxalate, citrate, carbonate and borate have reduced the sorption. The cations Y(III), Ce(II) and Ca(II) suppressed sorption. The sawdust column can be used to separate Cr(III) ion from Cs(I), I(I),Tc (VII) and Se (IV).
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Baraniak, L., Bernhard, G. and Nitsche, H.: 2002, ‘Influence of hydrothermal wood degradation products on the uranium sorption onto metamorphic rocks and sediments’, J. Radioanal. Nucl. Chem. 253(2), 185–190.
Benes, P. and Majar, V.: 1980, Trace Chemistry of Aqueous Solutions, Elsevier Science, Amsterdam, 175 pp.
Dubinin, M. M. and Radushkevich, L. V.: 1947, ‘The equation of the characteristic curve of activated charcoal’, Proc. Acad. Sci. USSR, Phys. Chem. Sect. 55, 327–329.
Foldesova, M., Dillinger, P. and Lukae, P.: 2000, ‘Adsorption and desorption of Cr (III) on natural and chemically modified Slovak Zeolites’, J. Radioanal. Nucl. Chem. 245(2), 435–439.
Freundlich, H.: 1926, Colloid and Capillary Chemistry, Methuen, London, p. 397.
Hasany, S. M. and Ahmad, R.: 2002, ‘Fixation of micro or submicro amounts of Hg(II) ions onto sawdust from aqueous solutions’, Main Group Met. Chem. 25(12), 719–726.
Hasany, S. M. and Ahmad, R.: 2003, ‘Sorption profile of Cd(II) ions onto coconut husk’, Main Group Met. Chem. 26(2), 87–98.
Hasany, S. M., Ahmad, R. and Chaudhary, M. H.: 2003, ‘Investigation of sorption of Hg(II) ions onto coconut husk from aqueous solution using radiotracer technique’, Radiochim. Acta 91, 533–538.
Hasany, S. M. and Chaudhary, M. H.: 1998, ‘Fixation of Cr(III) traces onto Haro river sand from acidic solution’, J. Radioanal. Nucl. Chem. 230(1–2), 11–15.
Hobson, J. P.: 1969, ‘Physical adsorption isotherms extending from ultrahigh vacuum to vapor pressure’, J. Phys. Chem. 73, 2720–2727.
James, B. R., Peutra, J. C. and Vitale, R. J.: 1997, ‘Oxidation-reduction chemistry of chromium: Relevance to the regulation and remediation of Chromate-contaminated soils’, J. Soil. Contam. 6(6), 569–580.
Khalid, N., Rahman, A., Ahmad, S., Toheed, A. and Ahmed, J.: 1999, ‘Adsorption behavior of rice husk for the decontamination of chromium from industrial effluents’, J. Radioanal. Nucl. Chem. 240(3), 775–781.
Lagergren, S.: 1889, ‘Theorie der sogennanten adsorption geloster stoffe’, K. Seveska Vetenskaped Handle. 24, 1–39.
Langmuir, I.: 1918, ‘The adsorption of gases on plane surface of glass, mica and platinum’, J. Am. Chem. Soc. 80, 1361–1403.
Lee, K. S., Lee, C. K. and Ng, A. Y.: 1998, ‘Column study on the sorption of Cr(VI) using quaternized rice hulls’, Bioresour. Technol. 68(2), 205–208.
Low, K. S., Lee, C. K. and Lee, P. L.: 1997, ‘Chromium(III) sorption enhancement through NTA-Modification of biological materials’, Bull. Environ. Contam. Toxicol. 58, 380–386.
Mishra, S. P., Tiwari, D. and Dubey, R. S.: 1997, ‘The uptake behaviour of rice (Jaya) husks in the removal of Zn(II) ions – A radiotracer study’, Appl. Radiat. Isot. 48(7), 877–882.
Morris, W. J. and Weber, J. C.: 1963, ‘Kinetics of adsorption on carbon from solution’, J. Saint, Eng. Div., ASCE 89(SA2), 31–59.
Pandy, K. K., Prasad, G. and Singh, V. N.: 1984, ‘Removal of Cr (IV) from aqueous solutions by adsorption on fly ash-wallastonite’, J. Chem. Tech. Biotechnol. 34A, 367–374.
Plunkett, E. R.: 1987, Handbook of Industrial Toxicology, Edward Arnold Publishers, London, pp. 138–140.
Reichenberg, D.: 1953, ‘Properties of ion exchange resins in relation to their structure. III. Kinetics of exchange’, J. Am. Chem. Soc. 75, 589–597.
Voropanova, L. A., Getova, E. Y., Rubanovskaya, S. G. and Pastukhov, A. V.: 1998, ‘Use of seeds of leguminous crops for sorption of chromium (VI), molybdenum (VI) and tungston (VI)’, Khim Prom-St. 9, 555–559.
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Ahmad, R. Sawdust: Cost Effective Scavenger for the Removal of Chromium(III) Ions from Aqueous Solutions. Water Air Soil Pollut 163, 169–183 (2005). https://doi.org/10.1007/s11270-005-0217-x
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DOI: https://doi.org/10.1007/s11270-005-0217-x