Fenton Process for Landfill Leachate Treatment: Evaluation of Biodegradability and Toxicity
Publication: Journal of Environmental Engineering
Volume 136, Issue 1
Abstract
The single Fenton or the Fenton process implemented in combined scheme as a posttreatment after the ferric chloride coagulation was applied for leachate collected from a real waste disposal site. Depending on the ratios of /chemical oxygen demand, , and pH, the Fenton oxidation or both the Fenton oxidation and the Fenton coagulation were involved in chemical oxygen demand reduction. The implementation of ferric chloride coagulation as a pretreatment stage or acidification of raw leachate did not result in the improvement of chemical oxygen demand reduction efficacy of the following Fenton process comparing with that obtained by the direct Fenton treatment of raw leachate. The direct Fenton treatment with a higher (3/1) /chemical oxygen demand ratio applied to raw leachate without pH preadjustment , produced more oxidized organic compounds (measured as dissolved organic carbon/chemical oxygen demand ratio), more biodegradable by-products (measured as a 7-day biological oxygen demand/chemical oxygen demand ratio), and required a considerably lower dosage of NaOH for neutralization, making it preferable for the leachate treatment. Although up to a twofold reduction in the toxicity was observed after the overall Fenton process application, the treated leachate remained extremely toxic to Daphnia magna.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The financial support of the Estonian Science Foundation (Grant No. UNSPECIFIED6564) is gratefully acknowledged. We thank Niina Kulik for the assistance in DOC analyses and Anu Viitak for the atomic absorption spectrometry analyses.
References
American Public Health Association, American Water Works Association, and Water Environment Federation. (2005). “Solids, biochemical oxygen demand, chemical oxygen demand.” Standard methods for the examination of water and wastewater, 21st Ed., A. D. Eaton, L. S. Clesceri, E. W. Rice, and A. E. Greenberg, eds., American Water Works Association, Washington, D.C., and Water Environment Federation, Alexandria, Va., 2-55–2-60, 5-2–5-19.
Bae, J. H., Kim, S. K., and Chang, H. S. (1997). “Treatment of landfill leachates: Ammonia removal via nitrification and denitrification and further COD reduction via Fenton’s treatment followed by activated sludge.” Water Sci. Technol., 36(12), 341–348.
Batarseh, E. S., Reinhart, D., and Daly, L. (2007). “Liquid sodium ferrate and Fenton’s reagent for treatment of mature landfill leachate.” J. Environ. Eng., 133(11), 1042–1050.
Deng, Y. (2007). “Physical and oxidative removal of organics during Fenton treatment of mature municipal landfill leachate.” J. Hazard. Mater., 146(1–2), 334–340.
Deng, Y., and Englehardt, D. (2006). “Treatment of landfill leachate by the Fenton process.” Water Res., 40, 3683–3694.
Di Iaconi, C., Ramadori, R., and Lopez, A. (2006). “Combined biological and chemical degradation for treating a mature municipal landfill leachate.” Biochem. Eng. J., 31, 118–124.
Ehrig, H. -J., and Stegmann, R. (1992). “Biological processes.” Landfilling of waste: Leachate, 1st Ed., T. H. Christensen, R. Cossu, and R. Stegmann, eds., Elsevier Science, New York.
Eisenberg, G. M. (1943). “Colorimetric determination of hydrogen peroxide.” Ind. Eng. Chem. Res., 15, 327–328.
Fang, H. H. P., Lau, I. W. C., and Wang, P. (2005). “Anaerobic treatment of Hong Kong leachate followed by chemical oxidation.” Water Sci. Technol., 52(10–11), 41–49.
Gau, S. -H., and Chang, F. -S. (1996). “Improved Fenton method to remove recalcitrant organics in landfill leachate.” Water Sci. Technol., 34(7–8), 455–462.
Gogate, P. R., and Pandit, A. B. (2004). “A review of imperative technologies for wastewater treatment. I: Oxidation technologies at ambient conditions.” Adv. Environ. Res., 8, 501–551.
ISO. (1996). “Water quality—Determination of the inhibition of the mobility of Daphnia Magna Straus (Cladocera, Crustacea)—Acute toxicity test.” ISO 6341, International Organization for Standardization, Geneva.
Kang, Y. W., Cho, M. -J., and Hwang, K. -Y. (1999). “Correction of hydrogen peroxide interference on standard chemical oxygen demand test.” Water Res., 33(5), 1247–1251.
Kiely, G. (1997). “Solid waste treatment.” Environmental engineering, McGraw-Hill, New York, 623–692.
Merck, E. (1974). “The testing of water.” Iron, 9th Ed., Merck, Darmstadt, Germany, 107–110.
Neyens, E., and Baeyens, J. (2003). “A review of classic Fenton’s peroxidation as an advanced oxidation technique.” J. Hazard. Mater., 98(1–3), 33–55.
Pignatello, J. J., Oliveros, E., and MacKay, A. (2006). “Advanced oxidation processes for organic contaminant destruction based on the Fenton reaction and related chemistry.” Crit. Rev. Environ. Sci. Technol., 36(1), 1–84.
Rivas, F. J., Beltran, F., Gimeno, O., and Carvalho, F. (2003). “Fenton-like oxidation of landfill leachate.” J. Environ. Sci. Health, Part A: Toxic/Hazard. Subst. Environ. Eng., 38(2), 371–379.
Silva, A. C., Dezotti, M., and Sant’Anna, G. L., Jr. (2004). “Treatment and detoxification of a sanitary landfill leachate.” Chemosphere, 55, 207–214.
Slomczynska, B., Wasowski, J., and Slomczynski, T. (2004). “Effect of advanced oxidation processes on the toxicity of municipal landfill leachates.” Water Sci. Technol., 49(5), 273–277.
Trapido, M., and Kallas, J. (2000). “Advanced oxidation processes for the degradation and detoxification of 4-nitrophenol.” Environ. Technol., 21, 799–808.
Trujillo, D., Font, X., and Sánchez, A. (2006). “Use of Fenton reaction for the treatment of leachate from composing of different wastes.” J. Hazard. Mater., 138, 201–204.
Walling, C. (1975). “Fenton’s reagent revisited.” Acc. Chem. Res., 8, 125–131.
Yoo, H. -C., Cho, S. -H., and Ko, S. -O. (2001). “Modification of coagulation and Fenton oxidation processes for cost-effective leachate treatment.” J. Environ. Sci. Health, Part A: Toxic/Hazard. Subst. Environ. Eng., 36(1), 39–48.
Yoon, J., Cho, S., Cho, Y., and Kim, S. (1998). “The characteristics of coagulation of Fenton reaction in the removal of landfill leachate organics.” Water Sci. Technol., 38(2), 209–214.
Information & Authors
Information
Published In
Copyright
© 2010 ASCE.
History
Received: Jun 25, 2008
Accepted: Jul 31, 2009
Published online: Aug 6, 2009
Published in print: Jan 2010
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.