Techno-economical evaluation of fluoride removal by electrocoagulation process: Optimization through response surface methodology

► As we checked, there is no study on optimization of EC parameters for fluoride removal. ► RSM was applied to obtain a useful model in predicting and optimizing the main parameters behavior. ► Operating cost was considered as another major response to obtain a model for economical view points. ► SEM and XRF analysis were used for more information of the produced sludge.