Castrillón Marín, MateoRubio Clemente, Ainhoa2021-04-152021-04-152020Revista Producción + Limpia-VOL 15 No. 2-20201909-0455http://hdl.handle.net/10567/3026Due to the increased toxicity of wastewater and the limited efficiency of conventional systems, the application of alternative processes is required, among which the sono-photo-Fenton system is highlighted.Objective. This work aims at optimizing the variables that directly affect the oxidation power of the sono-photo-Fenton process, such as the pH of the solution and the concentration of the oxidizing and the promoting agents, for the treatment of a petrochemical wastewater, in order to validate the suitability of using designs of experiments based on a reduced number of runs.Materials and methods. For this purpose, a face-centered composite central experiment design was used, whose second-order regression model was validated. The results achieved were compared Conclusiones. Se demuestra, por tanto, la importancia de llevar a cabo diseños de experimentos que permitan optimizar sistemas de tratamiento de aguas usando un reducido número de corridas, lo cual se traduce en la reducción tanto de costos económicos como de tiempos de experimentación y análisis de la variable respuesta objeto de estudio.Palabras clave: diseño de experimentos, tratamiento del agua, proceso avanzado de oxidación, contaminante persistente, contaminación.Optimization of the sono-photo-Fenton process for wastewater treatment using a central composite design.ABSTRACTto those ones reported in the literature using a larger number of experimental runs.Results. Under optimized operating conditions (3 pH units, 525 mg/L H2O2 and 25,70 mg/L Fe2+), COD removals > 70 % were obtained. These results were similar to the optimal conditions previously obtained and informed in the literature by using a full factorial experiment design.Conclusions. Therefore, it is demonstrated the importance of conducting designs of experiments that allow optimizing water treatment systems using a reduced number of runs, which results in the reduction of both economic costs and times of experimentation and analysis of the response variable of interestesAcceso abiertoCorporación Universitaria LasallistaÁrea Metropolitana del Valle de Aburráinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAcces