title: Municipal leachate treatment by Fenton process: effect of some variable and kinetics.
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, Fe(2+) and H2O2 dosage, Fe(2+)/H2O2 molar ratio, and reaction time was investigated. The result showed that with increasing Fe(2+) and H2O2 dosage, Fe(2+)/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.
authors.affiliation: Social Development & Health Promotion Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Ahmadian
authors.forename: Sohyla
authors.initials: S
authors.lastname: Reshadat
authors.forename: Nader
authors.initials: N
authors.lastname: Yousefi
authors.forename: Seyed Hamed
authors.initials: SH
authors.lastname: Mirhossieni
authors.forename: Mohammad Reza
authors.initials: MR
authors.lastname: Zare
authors.forename: Seyed Ramin
authors.initials: SR
authors.lastname: Ghasemi
authors.forename: Nader
authors.initials: N
authors.lastname: Rajabi Gilan
authors.forename: Razieh
authors.initials: R
authors.lastname: Khamutian
authors.forename: Ali
authors.initials: A
authors.lastname: Fatehizadeh
mesh_terms: D006861:Hydrogen Peroxide / Q000737:chemistry*; D007492:Iran; D007501:Iron / Q000737:chemistry*; D007700:Kinetics; D008962:Models, Theoretical; D010084:Oxidation-Reduction; D012037:Refuse Disposal; D062611:Solid Waste; D014874:Water Pollutants, Chemical / Q000737:chemistry*
chemical_list: C045076:Fenton's reagent; D062611:Solid Waste; D014874:Water Pollutants, Chemical; D006861:Hydrogen Peroxide; D007501:Iron