Abstract

; MONTERO DEL AGUILA, Edgar  and  CRUZ PIO, Liz Erika. Fenton process optimization in the treatment of landfill leachates lixiviated. Rev. Soc. Quím. Perú [online]. 2016, vol.82, n.4, pp.454-466. ISSN 1810-634X.

In this study Fenton process was optimized in the treatment of landfill leachates "Aguas de las Virgenes", Huancayo-Perú. The parameters tested were BOD₅, COD, alkalinity, hardness, pH, conductivity, total solids, turbidity, Pb and Cd. Samples were treated in a system of jars with stirring and to optimize the application values the Box - Behnken design and response surface methodology were used. The values of optimal concentrations were determined in two seasons: rainy seasons (pH = 3.19, 1645.55 mg/L of FeSO₄ and 1096.55 mg/L of H₂O₂) and dry seasons (pH = 3.26, 1788.61 mg/L of FeSO₄ and 1180.83 mg/L of H₂O₂). The optimal reaction time was 20 minutes for both seasons. The Biodegradability indicator was 0.568 and 0.329 in rainy seasons and dry seasons, respectively, with a near elimination of 42% of the COD in both periods. Fenton process is an effective alternative for treatment persistent substances in leachates and can be applied post treatment

Keywords : Fenton process; leachate; landfill; organic load.

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