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Municipal Leachate Treatment by Fenton Process: Effect of Some Variable and Kinetics Publisher Pubmed



Ahmadian M1 ; Reshadat S1 ; Yousefi N2 ; Mirhossieni SH3, 4 ; Zare MR3, 4 ; Ghasemi SR1 ; Rajabi Gilan N1 ; Khamutian R5 ; Fatehizadeh A3, 4
Authors
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Authors Affiliations
  1. 1. Social Development and Health Promotion Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
  2. 2. Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Environment Research Center, Isfahan University of Medical Sciences (IUMS), Isfahan, Iran
  4. 4. Department of Environmental Health Engineering, School of Health, IUMS, Isfahan, Iran
  5. 5. Faculty of Public Health, Kermanshah University of Medical Sciences, Kermanshah, Iran

Source: Journal of Environmental and Public Health Published:2013


Abstract

Due to complex composition of leachate, the comprehensive leachate treatment methods have been not demonstrated. Moreover, the improper management of leachate can lead to many environmental problems. The aim of this study was application of Fenton process for decreasing the major pollutants of landfill leachate on Kermanshah city. The leachate was collected from Kermanshah landfill site and treated by Fenton process. The effect of various parameters including solution pH, Fe2+ and H2O2 dosage, Fe 2+/H2O2 molar ratio, and reaction time was investigated. The result showed that with increasing Fe2+ and H 2O2 dosage, Fe2+/H2O2 molar ratio, and reaction time, the COD, TOC, TSS, and color removal increased. The maximum COD, TOC, TSS, and color removal were obtained at low pH (pH: 3). The kinetic data were analyzed in term of zero-order, first-order, and second-order expressions. First-order kinetic model described the removal of COD, TOC, TSS, and color from leachate better than two other kinetic models. In spite of extremely difficulty of leachate treatment, the previous results seem rather encouraging on the application of Fenton's oxidation. © 2013 Mohammad Ahmadian et al.
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