Export file:


  • RIS(for EndNote,Reference Manager,ProCite)
  • BibTex
  • Text


  • Citation Only
  • Citation and Abstract

Landfill Leachate Treatment Using Coupled, Sequential Coagulation-flocculation and Advanced Oxidation Processes

1 Programa de Maestría y Doctorado en Ingeniería Ambiental, UNAM-IMTA, Morelos, México
2 Instituto Politécnico Nacional, Ciudad de México, México
3 Division of Hydrologic Sciences. Desert Research Institute, Las Vegas, Nevada, USA
4 Sección de Estudios de Posgrado e Investigación ESIA-UZ. U.P., México

Special Issues: Water for an increasing population in a changing climate

This study evaluated the efficiency of Fenton (Fe/H2O2) and photo-assisted Fenton (Fe2+/H2O2/UV) reactions combined with coagulation-flocculation (C-F) processes to remove the chemical oxygen demand (COD) in a landfill leachate from Mexico at a laboratory scale. The C-F experiments were carried out in jar test equipment using different FeSO4 concentrations (0.0, 0.6, 1.0, 3, and 6 mM) at pH = 3.0. The effluent from the C-F processes were then treated using the Fenton reaction. The experiments were carried out in a 500 mL glass reactor fillet with 250 mL of landfill leachate. Different molar ratio concentrations (Fe/H2O2) were tested (e.g., 1.6, 3.3, 30, 40 and 75), and the reaction was followed until COD analysis showed no significant further variation in concentration or until 90 min of reaction time were completed. The photo-assisted Fenton reaction was carried out using a UV lamp (365 nm, 5 mW) with the same Fe/H2O2 molar ratio values described above. The results suggested that the photo-assisted Fenton process is the most efficient oxidation method for removing organic matter and color in the leachate. The photo-assisted Fenton process removed 68% of the COD and 90% of the color at pH = 3 over 30 minutes of reaction time using a H2O2/Fe molar ratio equal to 75 only using a third of the reaction time of the previous process.
  Article Metrics


1. INECC-SEMARNAT (2013) Diagnóstico básico para la gestión de los residuos en Mexico. Secretaría de Medio Ambiente y Recursos Naturales, Mexico D.F.

2. Guo JS, Abbas AA, Chen YP, et al. (2010) Treatment of landfill leachate using a combined stripping, Fenton, SBR, and coagulation process. J Hazard Mater 178: 699-705.    

3. Vedrenne M, Vasquez-Medrano R, Prato-Garcia D, et al. (2012) Characterization and detoxification of a mature landfill leachate using a combined coagulation-flocculation/photo Fenton treatment. J Hazard Mater s205-206: 208-215.

4. Alkassasbeh JYM, Heng LY, Surif S (2009) Toxicity testing and the effect of landfill leachate in Malaysia on behavior of common carp (Cyprinus Carpiol., 1758; Pisces, Cyprinidae). Am J Environ Sci 5: 2009-2017.

5. Cassano D, Zapata A, Brunetti G, et al. (2011) Comparison of several combined/integrated biological-AOPs setups for the treatment of municipal leachate: Minimization of operating costs and effluent toxicity. Chem Engin J 172: 250-257.    

6. Abbas AA, Jingsong G, Ping LZ, et al. (2009) Review on landfill leachate treatments. Am J Appl Sci 6: 672-684.

7. Renou S, Givaudan JG, Poulain S, et al. (2008) Landfill leachate treatment: Review and opportunity. J Hazard Mater 150: 468-493.    

8. UE Agency (2007) Guidance for the Treatment of Landfill Leachate, Sector Guidance Note IPPC S5.03, in: I.P.P.a.C. (Ippc) (Ed.).

9. Gotraja A, Ragor-Koncan J, Cotman M (2011) Fenton oxidative treatment of municipal landfill leachate as an alternative to biological process. Desalin 275: 269-275.    

10. Gupta A, Zhao R, Novak JT (2014) Application of Fenton reagents as polishing step for removal of UV quenching organic constituents in biologically treated landfill leachate. Chem 105: 82-86.

11. Rocha EMR, Vilar VJP, Fonseca A, et al. (2011). Landfill leachate treatment by solar-driven AOPs. Sol Energy 85: 46-56.    

12. Silva TCV, Fonseca A, Sraiva I, et al. (2013). Biodegradability enhancement of a leachate after biological lagooning using a solar driven photo-Fenton reaction, and further combination with an activated sludge biological process, at pre-industrial scale. Water Rese 47: 3543-3457.    

13. Silva TCV, Silva MEF, Cunha-Queda C, et al. (2013) Multistage treatment system for raw leachate from sanitary landfill combining biological nitrification-denitrification/solar photo-Fenton/biological processes, at a scale close to industrial--biodegradability enhancement and evolution profile of trace pollutants. Water Res 47: 6167-6186.    

14. Singh SK, Tank WZ, Tachiev G (2013) Fenton treatment of landfill leachate under different COD loading factors. Waste Manage 33: 2116-2122.    

15. Vilar VJP, Rocha EMR, Mota FS, et al. (2011) Treatment of sanitary landfill leachate using combined solar photo-Fenton and biological immobilized biomass reactor at a pilot scale. Water Res 45: 2647-2658.    

16. Vilar VJP, Silva FCV, Santos MAN, et al. (2012) Evaluation of solar photo-Fenton parameters on the pre-oxidation of leachates from a sanitary landfill. Sol Energy 86: 3301-3315.    

17. Ramirez-Sosa D, Castillo-Borges ER, Mendez-Novelo R (2013) Determination of organic compounds in landfill leachates treated by Fenton-adsorption. Waste Manage 33: 390-395.    

18. Varank G, Demir A, Top S, et al. (2011) Migration behavior of landfill leachate contaminants through alternative composite liners. Sci Total Environ 409: 3183-3196.    

19. DNK (Den Norske Veritas) (2006) Ecatepec-Ecomethane landfill gas to energy project in Mexico. Validation Report No. 2006-1190.

20. ASTM E313 (2015) Standard practice for calculating yellowness and whiteness indices from instrumentally measured color coordinates. ASTM West Conshohocken, Pennsylvania., Available from: www.astm.org.

21. American Public Health Association (1992) Standard Methods for the Examination of Water and Wastewater, (18th Edition), Washington D.C., MD, USA.

22. Wiszniowski J, Robert D, Sumarcz-Gorska J, et al. (2006) Landfill Leachate Treatment Methods: A Review. Environ Chem Lett 4: 51-61.    

23. United States Environmental Protection Agency (US EPA) (1995) Groundwater and Leachate Treatment Systems, Center for Environmental Research Information, National Risk Management Research Laboratory, Cincinnati.

24. Cozzarelli IM, Bohlke JK, Masoner J, et al. (2011). Biogeochemical evolution of a landfill leachate plume, Norman, Oklahoma. Ground Water 49: 663-687.    

25. Karanfil T, Schlautman MA, Erdogan I (2002) Survey of DOC and UV measurement practices with implications for SUVA determination. J Am Water Works Ass 94: 68-80.

Copyright Info: © 2017, José L. Álvarez Cruz, et al., licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution Licese (http://creativecommons.org/licenses/by/4.0)

Download full text in PDF

Export Citation

Article outline

Show full outline
Copyright © AIMS Press All Rights Reserved