Cadmium Release from Four Sorbents during Treatment of Contaminated Soils by Catalyzed Propagations (Modified Fenton’s Reagent)
Publication: Journal of Environmental Engineering
Volume 134, Issue 5
Abstract
The release of heavy metals from soils and subsurface solids is a significant concern during in situ chemical oxidation treatment. The release of cadmium sorbed on four solids of varied properties was investigated in slurries treated by catalyzed propagations (CHP—modified Fenton’s reagent). Cadmium was released in all four solids in CHP reactions conducted at pH 3; however, aqueous cadmium concentrations decreased in CHP reactions conducted at pH 7. Cadmium release at pH 3 was directly proportional to the soil organic carbon (SOC) content of the four solids , and may have been due to destruction of the SOC by hydroxyl radical in the reactions at pH 3. Scavenging of hydroxyl radical minimized the release of cadmium in CHP systems at pH 3, which is consistent with cadmium release resulting from destruction of SOC by hydroxyl radical. Scavenging of hydroxyl radical in CHP systems at pH 7 resulted in increased cadmium release, compared to pH 7 reactions without the hydroxyl radical scavenger isopropanol. Superoxide, the conjugate base of perhydroxyl radical , was proposed as the desorbing species in the scavenged CHP reactions at pH 7. The results of this research demonstrate that cadmium release will likely be minimal in CHP reactions conducted at pH 7 if compounds that increase the activity of superoxide are not present at significant concentrations.
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Acknowledgments
Funding for this research was provided by the Strategic Environmental Research and Development Program through Grant No. UNSPECIFIEDCU-1288.
References
Afanas’ev, I. B. (1989). Superoxide ion: Chemistry and biological implications, CRC, Boca Raton, Fla.
Bissey, L. L., Smith, J. L., and Watts, R. J. (2006). “Soil organic matter-hydrogen peroxide dynamics in the treatment of contaminated soils and groundwater using catalyzed propagations (modified Fenton’s reagent).” Water Res., 40(13), 2477–2484.
Corbin, J. F., Teel, A. L., Allen-King, R. M., and Watts, R. J. (2006). “Reactive oxygen species responsible for the enhanced desorption of dodecane in modified Fenton’s systems.” Water Environ. Res., 79(1), 37–42.
Crimi, M. L., and Siegrist, R. L. (2003). “Geochemical effects on metals following permanganate oxidation of DNAPLs.” Ground Water, 41(4), 458–469.
Crimi, M. L., and Siegrist, R. L. (2004). “Association of cadmium with particles generated with permanganate oxidation.” Water Res., 38(4), 887–894.
David, M. D., and Seiber, J. N. (1999). “Accelerated hydrolysis of industrial organophosphates in water and soil using sodium perborate.” Environ. Pollut., 105(1), 121–128.
Gee, B. W., and Bauder, J. W. (1986). “Particle size analysis.” Methods of soil analysis. Part 1: Physical and mineralogical methods, A. Klute, ed., American Society of Agronomy and Soil Science Society of America, Madison, Wis., 399–404.
Gschwend, P. M., and Reynolds, M. D. (1987). “Monodisperse ferrous phosphate colloids in an anoxic groundwater plume.” J. Contam. Hydrol., 1(3), 309–327.
Haag, W. R., and Yao, C. C. D. (1992). “Rate constants for reaction of hydroxyl radicals with several drinking water contaminants.” Environ. Sci. Technol., 26(6), 1005–1013.
Johnson, B. L., and DeRosa, C. T. (1997). The toxicologic hazard of superfund hazardous waste sites, Agency for Toxic Substances and Disease Registry, U.S. Dept. of Health and Human Services, Public Health Service, Atlanta.
Karathanasis, A. D., and Hajaek, B. F. (1996). “Elemental analysis by x-ray fluorescence spectroscopy.” Methods of soil analysis. Part 3: Chemical methods, D. L. Sparks, ed., Soil Science Society of America and American Society of Agronomy, Madison, Wis., 161–223.
Loeppert, R. H., and Suarez, D. L. (1996). “Carbonate and gypsum.” Methods of soil analysis. Part 3: Chemical methods, D. L. Sparks, ed., Soil Science Society of America and American Society of Agronomy, Madison, Wis., 437–474.
Monahan, M. J., Teel, A. L., and Watts, R. J. (2005). “Displacement of five metals sorbed on kaolinite during and after treatment with modified Fenton’s reagent.” Water Res., 39(13), 2955–2963.
Nelson, D. W., and Sommers, L. E. (1982). Methods of soil analysis. Part 2: Chemical and microbiological methods, A. L. Page, ed., American Society of Agronomy and Soil Science Society of America, Madison, Wis., 539–579.
Pignatello, J. J., and Baehr, K. (1994). “Waste management: Ferric complexes as catalysts for “Fenton” degradation of 2,4-D and metolachlor in soil.” J. Environ. Qual., 23(2), 365–369.
Ravikumar, J. X., and Gurol, M. D. (1994). “Chemical oxidation of chlorinated organics by hydrogen peroxide in the presence of sand.” Environ. Sci. Technol., 28(3), 394–400.
Siegrist, R. L., Urynowicz, M. A., West, O. R., Crimi, M. L., and Lowe, K. S. (2001). Principles and practices of in situ chemical oxidation using permanganate, Batelle, Columbus, Ohio.
Smith, B. A., Teel, A. L., and Watts, R. J. (2004). “Identification of the reactive oxygen species responsible for TCE degradation in modified Fenton’s systems.” Environ. Sci. Technol., 38(20), 5465–5469.
Smith, B. A., Teel, A. L., and Watts, R. J. (2006). “Mechanism for the destruction of carbon tetrachloride and chloroform DNAPLs by modified Fenton’s reagent.” J. Contam. Hydrol., 85(3–4), 229–246.
Soil Conservation Service (SCS). (1986). “Soil survey laboratory methods and procedures for collecting soil samples.” Soil Survey Investigation: Rep. I, U.S. Government Printing Office, Washington, D.C.
Sposito, G. (1989). The chemistry of soils, Oxford University Press, Oxford, U.K.
Stark, J., and Rabani, J. (1999). “Photocatalytic dechlorination of aqueous carbon tetrachloride solutions in layer systems: A chain reaction mechanism.” J. Phys. Chem. B, 103(40), 8524–8531.
Teel, A. L., and Watts, R. J. (2002). “Degradation of carbon tetrachloride by modified Fenton’s reagent.” J. Hazard. Mater., 94(2), 179–189.
Troeh, F. R., and Thompson, L. M. (1993). Soils and soil fertility, Oxford University Press, Oxford, U.K.
Tyre, B. W., Watts, R. J., and Miller, G. C. (1991). “Treatment of four biorefractory contaminants in soils using catalyzed hydrogen peroxide.” J. Environ. Qual., 20(4), 832–838.
Walling, C. (1975). “Fenton’s reagent revisited.” Acc. Chem. Res., 8(1), 125–131.
Watts, R. J., Bottenberg, B. C., Hess, T. F., Jensen, M. D., and Teel, A. L. (1999). “Mechanism of the enhanced treatment of chloroaliphatic compounds by Fenton-like reactions.” Environ. Sci. Technol., 33(19), 3432–3437.
Watts, R. J., Kong, S., Dippre, M., and Barnes, W. T. (1994). “Oxidation of sorbed hexachlorobenzene in soils using catalyzed hydrogen peroxide.” J. Hazard. Mater., 39(1), 33–47.
Watts, R. J., Stanton, P. C., Howsawkeng, J., and Teel, A. L. (2002). “Mineralization of a sorbed polycyclic aromatic hydrocarbon in two soils using catalyzed hydrogen peroxide.” Water Res., 36(12), 4283–4292.
Watts, R. J., and Teel, A. L. (2005). “Chemistry of modified Fenton’s reagent (catalyzed propagations—CHP) for in situ soil and groundwater remediation.” J. Environ. Eng., 131(4), 612–622.
Watts, R. J., Udell, M. D., Rauch, P. A., and Leung, S. W. (1990). “Treatment of pentachlorophenol-contaminated soils using Fenton’s reagent.” Hazard. Waste Hazard. Mater., 7(4), 335–345.
Information & Authors
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Published In
Journal of Environmental Engineering
Volume 134 • Issue 5 • May 2008
Pages: 331 - 337
Copyright
© 2008 ASCE.
History
Received: Aug 7, 2006
Accepted: Aug 27, 2007
Published online: May 1, 2008
Published in print: May 2008
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