Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-27T07:47:39.441Z Has data issue: false hasContentIssue false

The leaching behaviour of lead metallurgical slag in high-molecular-weight (HMW) organic solutions

Published online by Cambridge University Press:  05 July 2018

V. Ettler*
Affiliation:
Institute of Geochemistry, Mineralogy and Mineral Resources, Charles University, Albertov 6, 128 43 Praha 2, Czech Republic
J. Jehlička
Affiliation:
Institute of Geochemistry, Mineralogy and Mineral Resources, Charles University, Albertov 6, 128 43 Praha 2, Czech Republic
V. Mašek
Affiliation:
Institute of Geochemistry, Mineralogy and Mineral Resources, Charles University, Albertov 6, 128 43 Praha 2, Czech Republic Geomin, Znojemská 78, 586 56 Jihlava, Czech Republic
J. Hruška
Affiliation:
Czech Geological Survey, Geologická 6, 152 00 Praha 5, Czech Republic

Abstract

The reactivity of primary Pb metallurgical slags in high-molecular-weight (HMW) organic solutions has been studied in order to determine the processes of release and attenuation of metal and metalloid contaminants (Pb, Zn, Cu, As) in 'soil-like' environments. Slag was submitted to a 112-day batch leaching experiment in Suwannee River fulvic acid solution and peat water (∼50 mg DOC l–1). The leaching was coupled with investigation of the secondary phases (SEM/EDS, Raman microspectrometry) and thermodynamic speciation-solubility modelling using MINTEQA2. Metals and As are released in large amounts during the early stage of the experiment, followed by a decrease in the concentrations in the leachate as a result of adsorption on secondary (hydrous) ferric oxides (HFO/FO), predicted by MINTEQA2 calculations and confirmed on the leached slag surface by SEM and Raman spectrometry. Compared to other contaminants, Zn exhibits more pronounced mobility and is adsorbed on HFO/FO only at pH >7. Such a scavenging process may be predominant during the long-term interaction of slag with an HMW organic solution of real soil. As a result, the soil cover and subsequent re-vegetation of slag dumps may be considered as a possible scenario for slag management.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2005

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Aiken, G.R., McKnight, D.M., Wershaw, R.L. and MacCarthy, P. (1985) Humic Substances in Soil, Sediment, and Water. Wiley Interscience, New York.Google Scholar
Allison, J.D., Brown, D.S. and Novo-Gradac, K.J. (1991) MINTEQA2/PRODEFA2, A Geochemical Assessment Model for Environmental Systems, Version 3.0 User's Manual. US Environmental Protection Agency, Athens, Georgia, EPA/600/2-91/021.Google Scholar
Bennett, O.C. and Casey, W. (1994) Chemistry and mechanisms of low-temperature dissolution of minerals by organic acids. Pp. 162200 in: Organic Acids in Geological Processes (Pittman, E.D. and Lewan, M.D., editors). Springer Verlag, New York, USA.CrossRefGoogle Scholar
Christensen, J.B., Botma, J.J. and Christensen, T.H. (1999) Complexation of Cu and Pb by DOC in polluted groundwater: a comparison of experimental data and predictions by computer speciation models (WHAM and MINTEQA2). Water Research, 33, 32313238.CrossRefGoogle Scholar
Clesceri, L.S., Greenberg, A.E. and Eaton, A.D. (1998) Standard Methods for the Examination of Water and Wastewater, 20th edition. United Book Press, Baltimore, USA.Google Scholar
Davis, J.A. and Leckie, J.O. (1978) Effect of adsorbed complexing ligands on trace metal uptake by hydrous ferric oxides. Environmental Science and Technology, 12, 13091315.CrossRefGoogle Scholar
de Faria, D.L.A., Venancio, S.S. and de Oliveira, M.T. (1997) Raman microspectroscopy of some iron oxides and oxyhydroxides. Journal of Raman Spectroscopy, 28, 873878.3.0.CO;2-B>CrossRefGoogle Scholar
Drever, J.I. and Stillings, L.L. (1997) The role of organic acids in mineral weathering. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 120, 167181.CrossRefGoogle Scholar
Ettler, V. (2000) Etude du potentiel polluant de rejets anciens et actuels de la metallurgie duplomb dans le district de Přίbram (République tchèque). PhD thesis, Université d'Orléans, France. Available from: http://tel.ccsd.cnrs.frGoogle Scholar
Ettler, V., Legendre, O., Bodénan, F. and Touray, J.C. (2001) Primary phases and natural weathering of old lead-zinc pyrometallurgical slag from Příbram, Czech Republic. The Canadian Mineralogist, 39, 873888.CrossRefGoogle Scholar
Ettler, V., Mihaljevič, M., Touray, J.C. and Piantone, P. (2002) Leaching of polished sections: an integrated approach for studying the liberation of heavy metals from lead-zinc metallurgical slag. Bulletin de la Société Géologique de France, 173, 161 — 169.CrossRefGoogle Scholar
Ettler, V., Piantone, P. and Touray, J.C. (2003) Mineralogical control on inorganic contaminant mobility in leachate from lead-zinc metallurgical slag: experimental approach and long-term assessment. Mineralogical Magazine, 67, 12691283.CrossRefGoogle Scholar
Ettler, V., Komárková, M., Jehlička, J., Coufal, P., Hradil, D., Machovič, V. and Delorme, F. (2004) Leaching of lead metallurgical slag in citric solutions - implications for disposal and weathering in soil environments. Chemosphere, 57, 567577.CrossRefGoogle ScholarPubMed
Gee, C., Ramsey, M.H., Maskall, J. and Thornton, I. (1997) Mineralogy and weathering processes in historical smelting slag and their effect on the mobilisation of lead. Journal of Geochemical Exploration, 58, 249257.CrossRefGoogle Scholar
Gin, S., Godon, N., Mestre, J.P., Vernaz, E.Y. and Beaufort, D. (1994) Experimental investigation of aqueous corrosion of R7T7 nuclear glass at 90“C in the presence of organic species. Applied Geochemistry, 9, 255269.CrossRefGoogle Scholar
Glatzel, S., Kalbitz, K., Dalva, M. and More, T. (2003) Dissolved organic matter properties and their relationship to carbon dioxide efflux from restored peat bogs. Geoderma, 113, 397411.CrossRefGoogle Scholar
Hruška, J., Johnson, C.E. and Krám, P. (1996) Role of organic solutes in the chemistry of acid-impacted bog waters of the Western Czech Republic. Water Resources Research, 32, 28412851.CrossRefGoogle Scholar
Hruška, J., Köhler, S., Laudon, H. and Bishop, K. (2003) Is a universal model of organic acidity possible: comparison of the acid/base properties of dissolved organic carbon in the boreal and temperate zones. Environmental Science and Technology, 37, 17261730.CrossRefGoogle ScholarPubMed
Kaiser, M.G. and Van Riemsdijk, W.H. (2002) ECOSAT: A Computer Program for the Calculation of Speciation and Transport in Soil-Water Systems. Wageningen University, Wageningen, The Netherlands.Google Scholar
Komárková, M. (2003) Experimental investigation ofPb slag reactivity in citric solutions. MSc thesis, Charles University of Prague, Czech Republic (in Czech).Google Scholar
Lottermoser, B.G. (2002) Mobilization of heavy metals from historical smelting dumps, north Queensland, Australia. Mineralogical Magazine, 66, 475490.CrossRefGoogle Scholar
Oliver, B.G., Thurman, E.M. and Malcolm, R.L. (1983) The contribution of humic substances to the acidity of colored natural waters. Geochimica et Cosmochimica Acta, 47, 20312035.CrossRefGoogle Scholar
Parfitt, R.L., Fraser, A.R. and Farmer, V.C. (1977) Adsorption on hydrous oxides. III. Fulvic acid and humic acid on goethite, gibbsite and imogolite. Journal of Soil Science, 28, 289296.CrossRefGoogle Scholar
Piatak, N., Seal, R.R. II and Hammarstrom, J.M. (2004) Mineralogical and geochemical controls on the release of trace elements from slag produced by base- and precious-metal smelting at abandoned sites. Applied Geochemistry, 19, 10391064.CrossRefGoogle Scholar
Sauvé, S., McBride, M. and Hendershot, W. (1998) Soil solution speciation of lead(II): effect of organic matter and pH. Soil Science Society of America Journal, 62, 618621.CrossRefGoogle Scholar
Scheinost, A.C., Abend, S., Pandya, K.I. and Sparks, D.L. (2001) Kinetic controls on Cu and Pb sorption by ferrihydrite. Environmental Science and Technology, 35, 10901096.CrossRefGoogle Scholar
Sobanska, S., Ledesert, B., Deneele, D. and Laboudigue, A. (2000) Alteration in soils of slag particles resulting from lead smelting. Comptes Rendus de I'Académie des Sciences IIa, 331, 271278.Google Scholar
Thiry, M., Huet-Taillanter, S. and Schmitt, J.M. (2002) La friche industrielle de Mortagne-du-Nord (56) — I - Prospection du site, composition des scories, hydrochimie, hydrologie et estimation des flux. Bulletin de la Société Géologique de France, 173, 369381.CrossRefGoogle Scholar
Tipping, E. (1981) The adsorption of aquatic humic substances by iron oxides. Geochimica et Cosmochimica Acta, 45, 191199.CrossRefGoogle Scholar
Tipping, E. (1998) Humic ion-binding model VI: An improved description of the interactions of protons and metal ions with humic substances. Aquatic Geochemistry, 4, 348.CrossRefGoogle Scholar