Experimental design approach to COD and color removal of landfill leachate by the electrooxidation process

Toxic leachates originate from landfills are one of the major environmental problems. It has an important role in groundwater contamination and its treatment is crucial for environmental protection. In this research, the Electrooxidation (EO) process is applied to the landfill leachate balancing poo...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Sevil Veli, Ayla Arslan, Melike Isgoren, Deniz Bingol, Dilay Demiral
Formato: article
Lenguaje:EN
Publicado: Elsevier 2021
Materias:
Acceso en línea:https://doaj.org/article/2bb9fa61b0a3420db212d13227ad5f0f
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
Descripción
Sumario:Toxic leachates originate from landfills are one of the major environmental problems. It has an important role in groundwater contamination and its treatment is crucial for environmental protection. In this research, the Electrooxidation (EO) process is applied to the landfill leachate balancing pool effluent. At the beginning of the study, conventional characterization of landfill leachate was conducted. Then, the EO process was progressed via 14 stainless steel and parallel positioned electrodes. Through the Response Surface Methodology (RSM), the effectiveness of process variables was explained statistically. Effects of pH, current density, and reaction time on the process efficiency were studied and optimum conditions of the EO reaction were determined via COD and color removal efficiency parameters. By the model, optimum conditions of the reaction were found to be pH 7, current density 4.30 mA/cm2, and reaction time 35 min. The estimated removal efficiencies for COD and color were 42% and 97%, respectively. R2 values of the models were 98% for color removal and 93% for COD removal.