Abstract
The adsorption of lead(II) and zinc(II) onto goethite was studied as a function of pH, total dissolved metal concentration, surface area of goethite, and ionic strength. The results for zinc and lead were compared with those for copper reported earlier. The adsorption edge of lead ranges from pH 4 to 7, similar to that of copper, but the adsorption edge of zinc is displaced by 1.5 pH units toward higher pH. A fourfold increase in goethite surface area had a significant effect on the adsorption edge of lead, but a tenfold increase in the ionic strength of the medium did not affect the adsorption edge of lead and zinc. At neutral pH, 50 percent of the zinc was still available for transport and reactions in aqueous solution, whereas almost 100 percent of the lead and copper were bound to the goethite surface. The distribution coefficients increase sharply with the increase in pH and ranged from 60 to 30,000 ml/g in 2.5 pH units for lead and from 60 to 3000 ml/g in 1.5 pH units for zinc, depending on the goethite surface area and metal concentration. Distribution coefficients were used to calculate the number of protons released per mole of metal adsorbed during the adsorption process, with the average number of protons released per mole of lead and zinc adsorbed estimated to be 0.97±0.07 and 1.32±0.06, respectively. Proton coefficients of copper, lead, and zinc were correlated to their ionic radii and apparent equilibrium binding constant. Although the adsorption behavior of copper and lead were similar and both have the same charge, the drop in pH per mole of metal adsorbed is more in copper than in lead.
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References
Anderson PR and Christensen TH (1988) Distribution coefficients of Cd, Co, Ni, and Zn in soils. J Soil Sci 39:15–22
Balistrieri LS and Murray JW (1982) The adsorption of Cu, Pb, Zn, and Cd on goethite from major ion seawater. Geochim Cosmochim Acta 46:1253–1265
Balistrieri LS and Murray JW (1983) Metal-solid interactions in the marine environment: Estimating apparent equilibrium binding constants. Geochim Cosmochim Acta 47:1091–1098
Benjamin MM and Leckie JO (1981) Multiple-site adsorption of Cd, Cu, Zn and Pb on amorphous iron oxyhydroxide. J Colloid Interface Sci 79(1):209–221
Burgess J (1978) Metal ions in solution. New York: John Wiley & Sons. p 186
Dudley LM, Mclean JE, Sims RC and Jurinak JJ (1988) Sorption of copper and cadmium from the water soluble fraction of an acid mine waste by two calcareous soils. Soil Sci 145:207–214.
Forbes EA, Posner AM, and Quirk JP (1976) The specific adsorption of divalent Cd, Co, Cu, Pb, and Zn on goethite. J Soil Sci 27:154–166.
Fuller CC and Davis JA (1987) Processes and kinetics of Cd2+ sorption by a calcareous aquifer sand. Geochim Cosmochim Acta 59:1491–1502
Hayes KF, and Leckie JO (1987) Modeling ionic strength effects on cation adsorption at hydrous oxide/solution interfaces. J Colloid Interface Sci 115:564–572
Hem JD (1972) Chemistry and occurrence of cadium and zinc in surface water and groundwater. Water Resour Res 8:661–679
Hem JD (1976) Geochemical controls on lead concentrations in stream water and sediments. Geochim Cosmochim Acta 40:599–609
James RO and Leckie JO (1974) Control mechanisms for trace metals in natural waters.In: Rubin E (Ed), Aqueous-environmental chemistry of metals. Ann Arbor, Michigan: Ann Arbor Science. pp 1–77
Kooner ZS (1992) Adsorption of copper onto goethite in aqueous systems. Environ Geol Water Sci 20(3), 205–212
Loganathan P and Burau RG (1973) Sorption of heavy metal ions by a hydrous manganese oxide. Geochim Cosmochim Acta 37:1277–1293.
McCarthy JF and Zachara JM (1989) Subsurface transport of contaminant. Environ Sci Technol 23(5):496–502
Padmanabham M (1983a) Adsorption-desorption behaviour of copper(II) at the goethite-solution interface. Aust J Soil Res 21:309–320
Padmanabham M (1983b) Comparative study of the adsorptiondesorption behavior of copper(II), zinc(II), cobalt(II) and lead(II) at the goethite-solution interface. Aust J Soil Res 21:515–525
Parks GA (1975) Adsorption in marine environment.In: Riley JP and Skirrow G (Eds), Chemical oceanography, vol 1. New York: Academic Press. pp 241–308
Quirk JP and Posner AM (1975) Trace element adsorption by soil minerals.In: Nicholas DJD and Egan AR (Eds), Trace elements in soil-plant-animal Systems. New York: Academic Press. pp 95–107
Schindler PW (1967) Heterogeneous equilibria involving oxides, hydroxides, carbonates, and hydroxide carbonates.In: Stumm W (Ed), Equilibrium concepts in natural water systems; Advances in chemistry series 67, Washington, D.C.: Americal Chemical Society. pp 196–221
Westall JC, Zachary JL and Francois MMM (1976) A computer program for the calculation of chemical equilibrium composition of aqueous system. Technical Note No. 18. Cambridge, Massachusetts: Massachusetts Institute of Technology.
Zachara JM, Kittrick JA and Harsh JB (1988) The mechanism of Zn2+ adsorption on calcite. Geochim Cosmochim Acta 52:2281–2291
Zachara JM, Cowan CE and Resch CT (1991) Sorption of divalent metals on calcite. Geochim Cosmochim Acta 55:1549–1562
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Kooner, Z.S. Comparative study of adsorption behavior of copper, lead, and zinc onto goethite in aqueous systems. Geo 21, 242–250 (1993). https://doi.org/10.1007/BF00775914
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DOI: https://doi.org/10.1007/BF00775914