Abstract
Chelating extraction of heavy metals from contaminated soils is seen as a remediation technique. This work addresses important consideration in the application of chelating agents for soil remediation, namely the complexing power, selectivity, and recoverability of the chelators with respect to heavy metal contaminants. To address these issues, an assessment technique was developed to evaluate the chelators based on complexation equilibria of the chelators toward the target metals including Pb, Cu, Cd, Zn, Ni, and Hg. Predictions in terms of complexing power and selectivity were made using this technique and were compared to experimental extraction results using several chelators including L-5-glutamyl-L-cysteinylglycine (GCG), ethylenediaminetetraacetic acid (EDTA), nitrilotris(methylene)triphosphonic acid (NTTA), and trimethylenedinitrilotetraacetic acid (TMDTA). Experimental results showed an increasing complexing ability in the order of GCG < NTTA < TMDTA < EDTA, and an increasing selectivity toward the metal contaminants in the order of EDTA < TMDTA < GCG < NTTA. These results were largely consistent with equilibrium predictions. Enhanced recovery of metals from a very strong chelator EDTA was demonstrated with the use of metal-competing cationic precipitants (calcium hydroxide and ferric chloride) or anionic sulfide precipitant.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Bricka, R., and C. Williford, L. Jones (1994) “Heavy metal soil contamination at U.S. Army installations: Proposed research and strategy for technology Development,” Technical Report IRRP-94-1, U.S. Army Engineer Waterways Experiment Station, Vicksburg, MS.
Brewster, M.D., R.W. Peters, M.P. Henry, T.L. Patton, and L.E. Martino (1995). “Physical/Chemical Treatment of Heavy Metals-Contaminated Soils”, Paper presented at the 2nd International Symposium on Waste Processing and Recycling in Mineral and Metallurgical Industries”, Vancouver, British Columbia, Canada, August 19–23.
Bulman, R.A., A.J. Wedgwood, and G. Szabo (1992). “Investigations into the Chemical Forms of 239Pu in a West Cumbrian Saltmarsh Soil Radiolabelled by an Environmental Process”, Sci. Total Environ., 114(1–3):215–226.
Burckhard, S.R., A.P. Schwab, and M.K. Banks (1995). “The Effects of Organic Acids on the Leaching of Heavy Metals from Mine Tailings”, J. Haz. Mater:, 41(1–2):135–145.
Davis, A.P. and I. Singh, (1995). “Washing of Zinc(II) from Contaminated Soil Column”, J. Environ. Engrg. (ASCE), 121(2): 174–185.
Doepker, R.D. (1991). “Enhanced Metal Mobilization through Leachants Containing Acetate Ion”, pp. 365–381 in Emerging Technologies in Hazardous Waste Management II, ACS Sympos. Series 468, D.W. Tedder and F.G. Pohland, Eds., American Chemical Society, Washington, D.C.
Elliott, H.A., G.A. Brown, G.A. Shields, and J.H. Lynn (1989). “Restoration of Pb-Polluted Soils by EDTA Extraction”, pp. 64–67 in 7th Internat. Conf. on Heavy Metals in the Environ., Vol. II, J.-P. Vernet, Ed., Geneva, Switzerland (1989).
Ellis, W.D., T.R. Fogg, and A.N. Tafuri (1986). “Treatment of Soils Contaminated with Heavy Metals”, pp.201–207 in Land Disposal, Remedial Action, Incineration and Treatment of Hazardous Waste, 12th Ann. Res. Sympos., EPA 600/9-86/022, Cincinnati, OH.
Hessling, J.L., M.P. Esposito, R.P. Traver, and R.H. Snow (1989). “Results of Bench-Scale Research Efforts to Wash Contaminated Soils at Battery-Recycling Facilities”, pp. 497–514 in Metals Speciation, Separation, and Recovery, Vol. II, J.W. Patterson and R. Passino, Eds., Lewis Publishers, Inc., Chelsea, MI.
Kocher, W.M. (1995). “The Use of Soil Washing Processes for the Reclamation and Reuse of Foundry Waste Sands”, Proc. 27th Mid-Atlantic Indus. Waste Conf., 27:450–459.
Peters, R.W. and L. Shem (1992), “Use of Chelating Agents for Remediation of Heavy Metal Contaminated Soil”, ACS Sympos. Series 509 on Environmental Remediation: Removing Organic and Metal Ion Pollutants, G.F. Vandegrift, D.T. Reed, and I.R. Tasker, Eds., 509:70–84, American Chemical Society, Washington, D.C.
Peters, R.W. (1995). Feasibility/Treatability Studies for Removal of Heavy Metals from Training Range Soils at the Grafenwöhr Training Area, Germany, ANL/ESD/TM-81, Argonne National Laboratory, Argonne,IL.
Sistani, K.R., D.A. Mays, R.W. Taylor, and C. Buford (1995). “Evaluation of Four Chemical Extractants for Metal Determinations in Wetland Soils”, Commun. Soil Sci. Plant Anal., 26(13–14):2167–2180.
Tsang, K.W., P.R. Dugan, and R.M. Pfister (1992). “Mobilization of Bi, Cd, Pb, Th, and U Ions from Contaminated Soils and the Influence of Bacteria on the Process”, pp. 78–93 in Emerging Technologies in Hazardous Waste Management IV, D.W. Tedder and F.G. Pohland, Eds., ACS Sympos. Series No. 554, American Chemical Society, Washington,D.C.
Chen, T.-C., E. Macauley, and A. Hong (1995). “Selection and Test of Effective Chelators for Removal of Heavy Metals from Contaminated Soils”, Canadian Journal of Civil Engineering, 22:1185–1197.
Allen, H.E. and P.-H. Chen (1993). “Remediation of Metal Contaminated Soil by EDTA Incorporating Electrochemical Recovery of Metal and EDTA”, Environ. Prog., 12(4):284–293.
Hong, A., T.-C. Chen, and R. Okey (1995a). “Chelating Extraction of Copper from Soil with S-Carboxymethylcysteine”, Water Environment Research, 67:971–978.
Hong, A., T.-C. Chen, and R. Okey (1995b). “Chelating Extraction of Zinc from Soil with N-(2-acetamido)iminodiacetic Acid”, ACS Symposium Series 607, Chapter 17, 210–223.
Macauley, E. and A. Hong (1995). “Chelation Extraction of Lead from Soil Using Pyridine-2,6-dicarboxylic Acid”, J. Haz. Mater., 40(3):257–270.
Chen, T.-C. and A. Hong (1995). “Chelating Extraction of Lead and Copper from an Authentic Contaminated Soil Using N-(2-Acetamido)iminodiacetic Acid and S-Carboxymethyl-L-cysteine”, J. Haz. Mater., 41(1–2):147–160.
Hong, A. and T.-C. Chen (1996). “Extractive Recovery of Cadmium from Soil Using Pyridine-2,6-dicarboxylic Acid”, Water, Air, And Soil Pollution, 86:335–346
Stumm W. and J.J. Morgan (1996). Aquatic Chemistry. John Wiley & Sons, Inc., New York.
American Public Health Association, Greenberg, A.E., L.S. Clesceri, and A.D. Eaton, Eds., (1992). Standard Methods for the Examination of Water and Wastewater, 18th Ed., American Public Health Association, Washington, D.C.
USEPA. (1979) Methods for the Chemical Analysis of Water and Wastes. EPA600/4-79-020.
U.S.EPA. (1986) Testing Methods for Evaluating Solid Waste (SW-846). Volume IA, IB, IC, and II, Third Edition, U.S.EPA 955-001-00000-1.
Smith, R.E. and A.E. Martell, Critical Stability Constants. Vol. 1, Vol. 4, 5, and 6, New York: Plenum Press, 1974, 1976, 1982, 1989.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2002 Kluwer Academic Publishers
About this chapter
Cite this chapter
Hong, P.K.A., Li, C., Jiang, W., Chen, TC., Peters, R.W. (2002). Chelating Agents for Extraction of Heavy Metals from Soil. In: Tedder, D.W., Pohland, F.G. (eds) Emerging Technologies in Hazardous Waste Management 8. Springer, Boston, MA. https://doi.org/10.1007/0-306-46921-9_2
Download citation
DOI: https://doi.org/10.1007/0-306-46921-9_2
Publisher Name: Springer, Boston, MA
Print ISBN: 978-0-306-46362-4
Online ISBN: 978-0-306-46921-3
eBook Packages: Springer Book Archive