Water, Air, and Soil Pollution

, Volume 138, Issue 1–4, pp 199–209 | Cite as

Adsorption of Copper in the Different Sorbent/Water Ratios of Soil Systems


While sorbate/sorbent, sorbate/water, and sorbent/water (S/W)ratios in a batch system are known to affect the adsorption ofsorbate, the effect of different S/W ratios on the adsorptionof inorganic sorbates has seldom been addressed. This studyinvestigates the adsorption phenomena of Cu2+ in differentsorbate/sorbent/water ratios in a batch system. Batch experimentsare performed to examine the adsorption, and the linear (KD), Langmuir (KL), and Freundlich (KF) adsorption coefficients of Cu2+ in lateritic soil. These experiments are conducted using solutions with initial concentrations of 0.5 to 50 mg Cu2+ L-1 equilibratedwith an appropriate amount of soil to give S/W ratios of 0.1 to 2 g mL-1. Although the variations in the sorbed amountand adsorption coefficients apparently originate from a changein the sorbate/sorbent/water ratio, only the equilibrium concentration significantly affects adsorption. On the otherhand, the linear and Langmuir isotherm cannot adequately describethe adsorption data. In this study, the Freundlich equation gavean excellent fit to the adsorption data with a goodness-of-fit(R2) > 0.984. However, adsorption isotherms should be regarded as only a curve-fitting model or a mathematical tool and cannot be employed to interpret any particular adsorptionmechanism. Meanwhile, the solids effect reveals that KF andmaximum adsorption (b) of the Langmuir equation increase when S/W ratio decreases. The sorbate in the stagnant phase must beconsidered as part of the equilibrium concentration in the solidphase to avoid underestimating the sorbed amount at a lower S/Wratio and/or a higher sorbate concentration level.

adsorption adsorption coefficients sorbent/water ratio stagnant phase 


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  1. Blake, G. R. and Hartge, K. H.: 1986, 'Particle Density', in A. Klute (2nd ed.), Methods of Soil Analysis, Part 1. Physical and Mineralogical Methods, American Society of Agronomy, Madison, WI, U.S.A., pp. 377–382.Google Scholar
  2. Bowman, B. T. and Sans, W. W.: 1985, 'Partitioning behavior of insecticides in soil-water systems: I. Adsorption Concentration Effects', J. Environ. Qual. 14, 265–269.Google Scholar
  3. Brady, N. C. and Weil, P. R.: 1999, The Nature and Properties of Soils, Prentice Hall, Upper Saddle River, NJ, 881 pp.Google Scholar
  4. Celorie, J. A., Woods, S. L., Vinson. T. S. and Istok, J. D.: 1989, 'A comparison of sorption equilibrium distribution coefficients using batch and centrifugation methods', J. Environ. Qual. 18, 307–313.Google Scholar
  5. Chang, C. M., Wang, M. K., Chang, T. W. and Lin, C.: 2001, 'Transport modeling of copper and cadmium with linear and nonlinear retardation factors', Chemosphere 43, 1133–1139.Google Scholar
  6. Chang, T. W.: 1995, 'Estimation of Distribution Coefficient by Miscible Displacement Experiments', in P. Binning, H. Bridgman and B. William (eds), Proceedings of the International Congress on Modeling and Simulation, Vol. 3: Water Resources and Ecology, Newcastle, Australia, 27-30 November 1995, pp. 169–172.Google Scholar
  7. Chang, T. W.: 1996, 'The study of heavy metal copper distribution in soil at various water contents', J. Chin. Agric. Eng. 42(1), 92–97.Google Scholar
  8. Cox, L., Hermosín, M. C. and Cornejo, J.: 1993, 'Adsorption of methomyl by soils of southern Spain and soil components', Chemosphere 27(5), 837–849.Google Scholar
  9. Christensen, T. H.: 1984, 'Cadmium soil adsorption at low concentrations: 1. Effect of time, cadmium load, pH and calcium', Water, Air, and Soil Pollut. 21, 105–114.Google Scholar
  10. Di Toro, D. M.: 1985, 'A particle interaction model of reversible organic chemical sorption', Chemosphere 14, 1503–1538.Google Scholar
  11. Farmer, W. J. and Aochi, Y.: 1974, 'Picloram sorption by soils', Soil Sci. Soc. Am. Proc. 38, 418–423.Google Scholar
  12. Freundlich, H.: 1926, 'Colloid and Capillary Chemistry' (Translated from the third German edition by H. S. Hatfield), Methuen, London.Google Scholar
  13. Garcia-Miragaya, J. and Page, A. L.: 1976, 'Influence of ionic strength and inorganic complex formation on the sorption of trace amounts of Cd by montmorillonite', Soil Sci. Soc. Am. J. 40, 658–663.Google Scholar
  14. Gee, G. W. and Bauder, J. W.: 1986, 'Particle Size Analysis', in A. Klute (2nd ed.), Methods of Soil Analysis, Part 1. Physical and Mineralogical Methods, American Society of Agronomy, Madison, WI, U.S.A., pp. 383–410.Google Scholar
  15. Gee, G. W., Rai, D. and Serne, R. J.: 1983, 'Mobility of Radionuclides in Soil', in Soil Science Society of America (ed.), Chemical Mobility and Reactivity in Soil Systems, Soil Science Society of America, Madison, U.S.A., pp. 203–227.Google Scholar
  16. Grover, R. and Hance, R. J.: 1970, 'Effect of ratio of soil to water on adsorption of linuron and atrazine', Soil Sci. 109, 136–138.Google Scholar
  17. Hatano, R. and Sakuma, T.: 1991, 'A plate model for solute transport through aggregated soil columns. II. Experimental results and application of the model', Geoderma 50, 25–36.Google Scholar
  18. Horzempa, L. M. and Di Toro, D. M.: 1983, 'PCB partitioning in sediment-water systems: the effect of sediment concentration', J. Environ. Qual. 12, 373–380.Google Scholar
  19. Inskeep, W. P. and Baham, J.: 1983, 'Adsorption of Cd(II) and Cu(II) by Na-montmorillonite at low surface coverage', Soil Sci. Soc. Am. J. 47, 660–665.Google Scholar
  20. Krishnamurti, G. S. R., Huang, P. M. and Kozak, L. M.: 'Sorption and desorption kinetics of cadmium from soils: influence of phosphate', Soil Sci. 164(12), 888–898.Google Scholar
  21. Langmuir, I.: 1918, 'The adsorption of gases on plane surfaces of glass, mica, and platinum', J. Amer. Soc. 40, 1361–1403.Google Scholar
  22. Lindsay, W. L.: 1979, 'Copper', in W. L. Lindsay (ed.), Chemical Equilibrium in Soils, John Wiley & Sons, New York, U.S.A., pp. 222–265.Google Scholar
  23. Lion, L. W., Stauffer, T. B. and MacIntyre, W. C.: 1990, 'Sorption of hydrophobic compounds on aquifer materials: analysis methods and the effect of organic carbon', Contam. Hydrol. 5, 215–234.Google Scholar
  24. Maraqa, M. A., Zhao, X., Wallace, R. B. and Voice, T. C.: 1998, 'Retardation coefficients of nonionic organic compounds determined by batch and column techniques', Soil Sci. Soc. Am. J. 62, 142–152.Google Scholar
  25. McDonald Jr., L. M. and Evangelou, V. P.: 1997, 'Optimal solid-to-solution ratios for organic chemical sorption experiments', Soil Sci. Soc. Am. J. 61, 1655–1659.Google Scholar
  26. McLaren, R. G., Backes, C. A., Rate, A. W. and Swift, R. S.: 1998, 'Cadmium and colbalt desorption kinetics from soil clays: effect of sorption period', Soil Sci. Soc. Am. J. 62, 332–337.Google Scholar
  27. McLean, E. O.: 1982, 'Soil pH and Lime Requirement', in A. L. Page, R. H. Miller, and D. R. Keeney (2nd eds), Methods of Soil Analysis, Part 2. Chemical and Microbiological Properties, American Society of Agronomy, Madison, WI, U.S.A., pp. 199–224.Google Scholar
  28. Nelson, D. W. and Sommers, L. E.: 1982, 'Total Carbon, Organic Carbon, and Organic Matter', in A. L. Page, R. H. Miller, and D. R. Keeney (2nd eds), Methods of Soil Analysis, Part 2. Chemical and Microbiological Properties, American Society of Agronomy, Madison, WI, U.S.A., pp. 539–579.Google Scholar
  29. O'Connor, D. J. and Connolly, J. P.: 1980, 'The effect of concentration of adsorbing solids on the partition coefficient', Water Res. 14, 1517–1523.Google Scholar
  30. Puls, R. W., Powell, R. M., Clark, D. and Eldred, C. J.: 1991, 'Effect of pH, solid/solution ratio, ionic strength, and organic acids on Pb and Cd sorption on kaolinite', Water, Air, and Soil Pollut. 57-58, 423–430.Google Scholar
  31. Rhodes, J. D.: 1982, 'Cation Exchange Capacity', in A. L. Page, R. H. Miller and D. R. Keeney (2nd eds), Methods of Soil Analysis, Part 2. Chemical and Microbiological Properties, American Society of Agronomy, Madison, WI, U.S.A., pp. 149–157.Google Scholar
  32. Sanchez-Martin, M. J. and Sanchez-Camazano, M.: 1993, 'Adsorption and mobility of cadmium in natural, uncultivated soils', J. Environ. Qual. 22, 737–742.Google Scholar
  33. Servos, M. R. and Muir, D. C. G.: 1989, 'Effect of suspended sediment concentration on the sediment to water partition coefficient for 1,3,6,8-tetrachlorodibenzo-p-dioxin', Environ. Sci. Technol. 23, 1302–1306.Google Scholar
  34. Sidle, R. C. and Kardos, L. T.: 1977, 'Transport of heavy metals in a sludge-treated forested area', J. Environ. Qual. 6, 431–437.Google Scholar
  35. Snoeyink, V. L. and Jenkins, D.: 1980, Water Chemistry, John Wiley & Sons, New York, pp. 243–315.Google Scholar
  36. Soil Survey Staff: 1996, Keys to Soil Survey Taxonomy, 7th ed., United States Department of Agriculture and Natural Resources Conservation Services, Washington, DC.Google Scholar
  37. Sposito, G.: 1989, The Chemistry of Soils, Oxford University Press, New York, 277 pp.Google Scholar
  38. van Genuchten, M. Th. and Wierenga, P. J.: 1976, 'Mass transfer studies in sorbing porous media. I. Analytical solutions', Soil Sci. Soc. Am. J. 40, 473–480.Google Scholar
  39. Voice, T. C., Rice, C. P. and Weber Jr, W. J.: 1983, 'Effect of solids concentration on the sorptive partitioning of hydrophobic pollutants in aquatic systems', Environ. Sci. Technol. 19, 789–796.Google Scholar
  40. You, S., Yin, Y. and Allen, H. E.: 1999, 'Partitioning of organic matter in soils: Effects of pH and water/soil ratio', Sci. Total Environ. 227, 155–160.Google Scholar

Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  1. 1.Department of Agricultural ChemistryNational Taiwan UniversityTaiwan, ROC
  2. 2.Agricultural Engineering Research CenterTaiwan, ROC

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