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http://dx.doi.org/10.4491/eer.2007.12.3.101

FIXATION OF LEAD CONTAMINANTS IN Pb-DOPED SOLIDIFIED WASTE FORMS  

Lee, Dong-Jin (National Institute of Environmental Research, Environmental Research Complex)
Chung, David (National Institute of Environmental Research, Environmental Research Complex)
Hwang, Jong-Yeon (National Institute of Environmental Research, Environmental Research Complex)
Choi, Hyun-Jin (National Institute of Environmental Research, Environmental Research Complex)
Publication Information
Environmental Engineering Research / v.12, no.3, 2007 , pp. 101-108 More about this Journal
Abstract
Fixation of lead contaminants in the solidification/stabilization using Portland cement has been investigated by X-ray diffraction, scanning electron microscopy and compressive strength. The presence of lead was observed to produce lead carbonate sulfate hydroxide ($Pb_4SO_4(CO_3)_2(OH)_2$), lead carbonate hydroxide hydrate ($3PbCO_3{\cdot}2Pb(OH)_2{\cdot}H_2O$) and two other unidentified lead salts in cavity areas and was observed to significantly retard the hydration of cement. By 28 days, howevere, the XRD peaks of most of the lead precipitates have essentially disappeared with only residual traces of lead carbonate sulfate hydroxide and lead carbonate hydroxide hydrate evident. After 28 days of curing, hydration appears well advanced with a strong portlandite peak present though C-S-H gel peaks are not particularly evident. Lead species produced with the dissolution of lead precipitates are fixed into the cement matrix to be calcium lead silicate hydrate (C-Pb-S-H) during cement-based solidification.
Keywords
Cement; Solidification/Stabilization(S/S); Lead; X-Ray Diffraction; SEM;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Gougar, M. L.D., Scheetz, B. E., and Roy, D. M., 'Ettringite and C .. S-H Portland cement phases for waste ion immobilization: a review,' Waste Management, 16(4): 295-303 (1996)   DOI   ScienceOn
2 Landreth, R. E., Guide to the disposal of chemically stabilized and solidified waste, EPA SW-872, U. S. Environmental Protection Agency, Cincinnati, OH (1986)
3 Conner, J. R., Chemical Fixation and Solidification of Hazardous Wastes, Van Nostrand Reinhold, New York (1990)
4 Parapar, J. F. V., Francoy, C. R., RodriguezPinero, P., Martinez, L. S., and Pereira, C. F., 'Stabilization/solidification of hazardous metallic wastes: prediction of leach test performance to optimize S/S mixtures,' Waste Management, 16(2) 175-182 (1998)   DOI   ScienceOn
5 Bhatty, M. S. Y., 'Fixation of metallic ions in Portland cement,' Superfund '87 140-147 ( 1987)
6 Lee, D., 'Leachability of Pb-doped Solidified Waste Forms using Portland cement and calcite: II. Investigation of SEM/EDS,' Environ. Eng. Res., 9(2), 66-74 (2004)   DOI   ScienceOn
7 Yousuf, M., Mollah, A., Vempati, T. C. L., and Cocke, D. L., 'The Interfacial chemistry of solidification/stabilization of metals in cement and pozzolanic material systems,' Waste Management, 15(2) 137-148 (1995)   DOI   ScienceOn
8 Asavapisit, S., Fowler, G., and Cheeseman, C. R., 'Solution chemistry during cement hydration in the presence of metal hydroxide wastes,' Cem. Concr. Res., 27(8) 1249-1260 (1997)   DOI   ScienceOn
9 Gress, D. L., and EI-Korchi, T., 'Microstructural Characterization of Cement-solidified Heavy Metal Wastes,' Chemistry and Microstructure of Solidified Waste Forms, Spence, R. D. (Eds.), Lewis Publishers, Tennessee, pp. 169-185 (1993)
10 Lee, D., 'Performance of pH Static Leaching Test for evaluating Leachability of Solidified Waste Forms,' Environ. Eng. Res., 9(5), 231-237 (2004)   DOI   ScienceOn
11 Lee, D., 'Electron Probe Microanalysis (EPMA) Investigation of Lead Location on the Solidification/Stabilization of Pb Wastes,' Environ. Eng. Res., 9(6), 299-307
12 Cocke, D. L., 'The binding chemistry and leaching mechanisms of hazardous substances in cementitious solidification/stabilization systems,' J. Hazardous materials, 24, 231-253 (1990)   DOI   ScienceOn
13 Thomas, N. L., Jameson, D. A., and Double, D. D., 'The effect of lead nitrate on the early hydration of Portland cement,' Cem. Concr. Res., 11, 143-153 (1981)   DOI   ScienceOn
14 Mulligan, C. N., Yong, R. N., and Gibbs, B. F., 'Remediation technologies for metal-contaminated soil and groundwater,' Engineering Geology, 60(1-4) 193-207 (2001)   DOI   ScienceOn
15 Cote, P., Contaminant Leaching from Cementbased Waste Forms under Acidic Conditions, Ph.D thesis, McMaster University, Canada ( 1986)
16 Bishop, P. L., 'Leaching of inorganic hazardous constituents from stabilized/solidified hazardous wastes,' Hazard. Wastes Hazard. Mater., 5(2) 129-143 (1988)   DOI
17 Tashiro, C., Takahashi, H., Kanaya, M., Hirakida, I., and Yoshida, R., 'Hardening property of cement mortar adding heavy metal compound and solubility of heavy metal from hardened mortar,' Cem. Concr. Res., 7, 283-290 (1977)   DOI   ScienceOn
18 Cartledge, F. K., Butler, L. G., Chalasani, D., Eaton, H. C., Frey, F. P., Herrera, E., Tittlebaum, M. E., and Yang, S. L., 'Immobilization mechanisms in solidification/stabilization of Cd and Pb salts using Portland cement fixing agents,' Environ. Sci. Technol., 24(6) 867-873 (1990)   DOI