Evaluating the Mobility of Arsenic in Synthetic Iron-Containing Solids Using a Modified Sequential Extraction Method
Publication: Journal of Environmental Engineering
Volume 136, Issue 2
Abstract
Many water treatment technologies for arsenic removal that are used today produce arsenic-bearing residuals which are disposed in nonhazardous landfills. Previous works have established that many of these residuals will release arsenic to a much greater extent than predicted by standard regulatory leaching tests (e.g., the toxicity characteristic leaching procedure) and, consequently, require stabilization to ensure benign behavior after disposal. In this work, a four-step sequential extraction method was developed in an effort to determine the proportion of arsenic in various phases in untreated as well as stabilized iron-based solid matrices. The solids synthesized using various potential stabilization techniques included: amorphous arsenic-iron sludge (ASL), reduced ASL via reaction with zero valent iron (RASL), amorphous ferrous arsenate (PFA), a mixture of PFA and SL (M1), crystalline ferrous arsenate (HPFA), and a mixture of HPFA and SL (M2). The overall arsenic mobility of the tested samples increased in the following order: .
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Acknowledgments
This work was supported by the National Institute of Environmental Health Sciences (NIEHS) Grant No. UNSPECIFIEDP42 ES04940. This paper’s contents are solely the responsibility of the writers and do not necessarily represent the official views of NIEHS. The writers want to thank the Arizona Department of Health for providing arsenic analysis on their ICP-OES instrument and Dr. Robert Downs and his research group in the University of Arizona, Geosciences Department for their help in arsenic mineral identification.
References
Ahsan, H., et al. (2006). “Arsenic exposure from drinking water and risk of premalignant skin lesions in Bangladesh: Baseline results from the health effects of arsenic longitudinal study.” Am. J. Epidemiol., 163, 1138–1148.
Alam, M. G. M., Tokunaga, S., and Maekawa, T. (2001). “Extraction of arsenic in a synthetic arsenic-contaminated soil using phosphate.” Chemosphere, 43, 1035–1041.
Bodwell, J. E., Kingsley, L. A., and Hamilton, J. W. (2004). “Arsenic at very low concentrations alters glucocorticoid receptor (GR)-mediated gene activation but not GR-mediated gene repression: Complex dose-response effects are closely correlated with levels of activated GR and require a functional GR DNA binding domain.” Chem. Res. Toxicol., 17, 1064–1076.
Borovec, Z. (1993). “The uptake of trace amounts of uranium and radium on some river suspension components.” Proc., 11th Conf. Clay Mineral Petrol., Karlova, Czech Republic, 251–258.
Cornell, R. M., and Schwertmann, U. (2003). The iron oxides: Structure, properties, reactions, occurrences and uses, 2nd Ed., Wiley, New York.
Dixit, S., and Hering, J. G. (2003). “Comparison of arsenic(V) and arsenic(III) sorption onto iron oxide minerals: Implications for arsenic mobility.” Environ. Sci. Technol., 37, 4182–4189.
Ela, W. (2006). Disposal of arsenic-bearing water treatment residuals: Assessing the potential for environmental contamination, NIEHS, Washington, D.C.
EPA. (2007). Method 6020A, ⟨http://www.epa.gov/epaoswer/hazwaste/test/pdfs/ 6020a.pdf⟩ (2009).
Ghosh, A., Mukiibi, M., and Ela, W. P. (2004). “TCLP underestimates leaching of arsenic from solid residuals under landfill conditions.” Environ. Sci. Technol., 38, 4677–4682.
Ghosh, A., Mukiibi, M., Sáez, A. E., and Ela, W. P. (2006a). “Leaching of arsenic from granular ferric hydroxide residuals under mature landfill conditions.” Environ. Sci. Technol., 40, 6070–6075.
Ghosh, A., Sáez, A. E., and Ela, W. P. (2006b). “Effect of pH, competitive anions and NOM on the leaching of arsenic from solid residuals.” Sci. Total Environ., 363, 46–59.
Jain, A., Raven, K. P., and Loeppert, R. H. (1999). “Arsenite and arsenate adsorption on ferrihydrite: Surface charge reduction and net OH-release stoichiometry.” Environ. Sci. Technol., 33, 1179–1184.
Jekel, M., and Amy, G. L. (2006). “Arsenic removal during drinking water treatment.” Interface Sci. Technol., 10, 193–206.
Keon, N. E., Swartz, C. H., Brabander, D. J., Harvey, C., and Hemond, H. F. (2001). “Validation of an arsenic sequential extraction method for evaluating mobility in sediments.” Environ. Sci. Technol., 35, 2778–2784.
Krysiak, A., and Karczewska, A. (2007). “Arsenic extractability in soils in the areas of former arsenic mining and smelting, SW Poland.” Sci. Total Environ., 379, 190–200.
Manning, B. A., and Goldberg, S. (1996). “Modeling arsenate competitive adsorption on kaolinite, montmorillonite and illite.” Clays Clay Miner., 44, 609–623.
Mihaljevič, M., Poňavič, M., Ettler, V., and Šebek, O. (2003). “A comparison of sequential extraction techniques for determining arsenic fractionation in synthetic mineral mixtures.” Anal. Bioanal. Chem., 377, 723–729.
Ruttenberg, K. C. (1992). “Development of a sequential extraction method for different forms of phosphorus in marine sediments.” Limnol. Oceanogr., 37, 1460–1482.
Shaw, D. (2004). “Mobility of arsenic in saturated, laboratory test sediments under varying pH conditions.” Proc., 4th Geoenviron. Eng. Conf., Thomas Telford, London.
Shiowatana, J., Tantidanai, N., Nookabkaew, S., and Nacapricha, D. (2001). “A novel continuous-flow sequential extraction procedure for metal speciation in solids.” J. Environ. Qual., 30, 1195–1205.
Smith, A. H., et al. (2006). “Increased mortality from lung cancer and bronchiectasis in young adults after exposure to arsenic in utero and in early childhood.” Environ. Health Perspect., 114, 1293–1296.
Tan, K., Yong, R. N., and Thomas, H. R. (2006). “Leaching column test on arsenic-soil interactions.” Geotech. Spec. Publ., 148, 306–314.
Tessier, A., Campbell, P. G. C., and Bisson, M. (1979). “Sequential extraction procedure for the speciation of particulate trace metals.” Anal. Chem., 51, 844–851.
Van Herreweghe, S., Swennen, R., Vandecateele, C., and Cappuyns, V. (2003). “Solid phase speciation of arsenic by sequential extraction in standard reference materials and industrially contaminated soil samples.” Environ. Pollut., 122, 323–342.
Information & Authors
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Published In
Journal of Environmental Engineering
Volume 136 • Issue 2 • February 2010
Pages: 238 - 245
Copyright
© 2010 ASCE.
History
Received: Jan 6, 2009
Accepted: Aug 12, 2009
Published online: Aug 15, 2009
Published in print: Feb 2010
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