FENTON PROCESS OPTIMIZATION IN THE TREATMENT OF LANDFILL LEACHATES LIXIVIATED

• Autores: Valderrama, Medina, Javier, Carlos, del Águila, Montero, Miche, Edgar, Pio, Cruz, Erika, Liz
• Formato: artículo
• Fecha de Publicación: 2016
• Institución: Sociedad Química del Perú
• Repositorio: Revista de la Sociedad Química del Perú
• Lenguaje: español
• OAI Identifier: oai:rsqp.revistas.sqperu.org.pe:article/135
• Enlace del recurso: http://revistas.sqperu.org.pe/index.php/revistasqperu/article/view/135
• Nivel de acceso: acceso abierto
• Materia: carga orgánica; leachate; landfill; organic load; proceso Fenton; lixiviado; aguas residuales

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 H2 O2 ) 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.