Abstract
A contaminated soil was exhaustively sampled at various depthson a rectangular sampling grid of 12 by 15 m (107 samples).Four metal contaminated soil samples were submitted to physicaltreatment methods followed by chemical leaching. The treatmentflowsheet consisted of crushing the 2–10 mm contaminatedfraction, various sieving and use of a wet magnetic separatorprocess for the >63 μm size fraction (SF). Subsequently theWilfley shaking table was applied to the 63-850 μm SF while ajig gravimetric separator was used on the SF >850 μm. Themagnetic separator had a small removal efficiency. Out of fourSF, one was successfully decontaminated by the Wilfley table andtwo other SF were successfully decontaminated by the jig; bothtreatments removed a significant part of metals from all soils.Chemical leaching using hydrochloric and acetic acids at atemperature of 37 °C was performed on 9 SF out of 12. After completion of the treatment, soils were recombined and tested with the Toxicity characteristics leaching procedure (TCLP) of the United States Environmental Protection Agency anda gastric juice simulation test (GJST). Untreated small size particles leach more metals with the GJST than coarse particles.Decreases in Pb concentrations varied from 33.9 to 82.5%, thehighest values corresponding to the most heavily contaminated soils. Decreases in Pb TCLP between 54.1 and 99.5% were observedand the maximal value for a treated soil was 1.53 mg Pb L-1.The GJST decrease varied from 48.5 and 92.5% (highest leachingpotential before treatment). No problematic levels of leachingoccurred, as leaching of Pb, Cu, Zn and Sn after treatment wasrelatively low. The amount of soil to be treated was estimated from a micro and macro characterization. For an heterogeneous soil like the one studied here, the estimated cost for a 100 000 metric tons project on a 2 year span is relatively low at nearly 60 $CDN/mt.
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References
APHA: 1995, Standards Methods for Examination of Water and Wastewater, 17th ed., American Public Health Association, Washington, DC.
Davis, A., Drexler, J. W., Ruby, M. V. and Nicholson, A.: 1993, ‘Mineralogy of mine waste in relation to lead bioavailability’, Environ. Sc. and Tech. 27, 1415–1425.
Environment Canada: 1992, ‘Guide méthodologique de caractérisation des sédiments’, Supply and Services Branch, ISBN 0-662-96-885-9, 160 pp.
Hall, D. and Holbein, B. E.: 1993, Integrated Treatment of Heavy Metal and Organic Contaminated Industrial Soils, Proceedings of the Soil Remediation Symposium, Quebec, Canada, September 1993, pp. 151–195.
INRS-Géoressources and CRM: 1997, ‘Protocole d'évaluation de la traitabilité des sédiments, des sols et des boues à l'aide des technologies minéralurgiques’, Fiche Technique d'Environnement Canada. Environnement Canada, Montréal, Canada, 4 pp.
Jandel Scientific Software: 1995, ‘Sigmastat Statistical Software Users Manual Version 2.0 for Windows 95, 98, NT and 3.1’, Jandel Corporation, P.O. Box 7005, San Rafael, CA 94912-7005, U.S.A.
Lang, D. D. and Mourato, D.: 1993, ‘Results of the Toronto Harbour Commissioners Soil Recycling Demonstration Project’, Toronto Harbour Commissioners, Toronto, Canada, 42 pp.
Marino, M. A., Brica, R. M. and Neale, C. N.: 1997, ‘Heavy metal soil remediation; The effects of attrition scrubbing on a wet gravity concentration process’, Environ. Progr. 16(3), 208–214.
MEFQ: 1998, ‘Politique de protection des sols et de réhabilitation des terrains contaminés’, Gouvernement du Québec, Ministère de l'Environnement et Faune, Québec, Canada Annexe 2 tableau 1.
Mercier, G.: 2000, ‘Disponibilité des métaux dans les sols et prévision du rendement d'enlèvement par des techniques minéralurgiques’, Ph.D. Thesis, Départment de géologie et de génie géo-logique, Université Laval, Québec, Canada et Thèse de doctorat, INSA-Toulouse, Toulouse, France, 277 pp.
Mercier, G., Duchesne, J. and Blackburn, D.: 2001a, ‘Prediction of the efficiency of physical methods to remove metals from contaminated soils’, Jour. of Environ. Eng. of the ASCE 127(4), 348–358.
Mercier, G., Duchesne, J. and Carles-Gibergues, A.: 2001b, ‘A new test simulating gastrointestinal absorption for the detection of soils contaminated by metals’, Submitted for publication in Adv. in Environ. Res.
Murray, K., Bazzi, A., Carter, C., Ehlert, A., Hanis, A., Kopec, M., Richardson, J. and Sokol, H.: 1997, ‘Distribution and mobility of lead in soils at an outdoor shooting range’, J. of Soil Contam. 6(1), 79–93.
Nedwed, T. and Clifford, D. A.: 1997, ‘A survey of lead battery recycling sites and soil remediation processes’, Waste Mgmt. 17(4), 257–269.
Perkins, Dexter: 1998, Mineralogy, Prentice Hall Inc., Upper Saddle River, New Jersey, U.S.A., 484 pp.
Rikers, R. A., Rem, P., Dalmijn, W. L. and Honders, A.: 1998a, ‘Characterization of heavy metals in soil by high gradient magnetic separator’, J. of Soil Contam. 7(2), 163–190.
Rikers, R. A., Rem, P. and Dalmijn, W. L.: 1998b, ‘Improved method of prediction of heavy metal recoveries from soil using high magnetic process (HIMS)’, Int. J. Miner. Process 54, 165–182.
Rulkens, W. H. and Honders, A.: 1996, ‘Clean-up of contaminated sites: Experiences in The Netherlands’, Wat. Sc. and Techn. 34(7–8), 293–301.
Svoboda, J.: 1987, Magnetic Methods for the Treatment of Minerals, Elsevier, Amsterdam, The Netherlands, 692 pp.
USEPA: 1999, ‘Current Drinking Water Standards’, United States Environment Protection Agency. Office of Water, Current drinking water standards, Web site: www.epa.gov/OGWDW/wot/appa.html.
USEPA: 1994a, ‘Guidance manual for the integrated exposure uptake biokinetic model for lead in children, Report and Software, Lead 0.99d’, Office of Emergency and Remedial Response, EPA 540-R-93-081, Washington, D.C., U.S.A.
USEPA: 1994b, ‘Assessment and remediation of contaminated sediments (ARCS program); mineral processing pretreatment of contaminated sediments’, Rapport No. EPA 905-R94-022, Chicago Il, U.S.A.
Van Benschoten, J. E., Matsumoto, M. R. and Young, W. H.: 1997, ‘Evaluation and analysis of soil washing for seven lead-contaminated soils’, J. of Environ. Eng. of the ASCE, 123(3), 217–224.
Villeneuve, J. P., Chartier, M., Mercier, G. and Roberge, G.: 1998, ‘Mise au point d'un procédé de biolixiviation des métaux pour la décontamination des sols et des sédiments’, Scientific Report No. R509, INRS-Eau, Ste-Foy, Quebec, Canada, 52 pp.
Wagner, R. H. O., Stogran, S. W. and Plumpton, A. J.: 1997, ‘Mineral Processing Technology for Site Remediation’, Technical document distributed by Lakefield Research Limited, Lakefield, Ontario, Canada, 18 pp.
Wasay, S. A., Barrington, S. F. and Tokunaga, S.: 1998, ‘Remediation of soil polluted by heavy metals using salts or organic acids and chelating agents’, Environ. Techn. 19, 369–380.
Wills, B. A.: 1992, Mineral Processing Technology, Pergamon Press, NY, U.S.A., 855 pp.
Wixon, B. G. and Davies, B. E.: 1993, ‘Lead in Soil, Recommended Guidelines’, Report prepared for Society for Environmental Geochemistry and Health 'Lead in Soil' Task force USEPA, Published by Science Reviews, University of Bradford U.K. and Clemson University S.C., U.S.A., 132 pp.
Xintaras, C.: 1992, Analysis Paper: Impact of Lead Contaminated Soil on Public Health, Published by the U.S. Department of Health and Human Services, Agency for Toxic Substances and Disease Registry, Atlanta, Georgia 30333, U.S.A.
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Mercier, G., Duchesne, J. & Blackburn, D. Removal of Metals from Contaminated Soils by Mineral Processing Techniques Followed by Chemical Leaching. Water, Air, & Soil Pollution 135, 105–130 (2002). https://doi.org/10.1023/A:1014738308043
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DOI: https://doi.org/10.1023/A:1014738308043