ELECTRODE LIFETIME INFLUENCES ON ELECTROCOAGULATION EFFICIENCY IN WASTEWATER TREATMENT: MODELING AND OPTIMIZATION

摘要

In this work, reactive red 198 dye removal by electrocoagulation were studied focusing electrode lifetime influences on dye removal efficiency. Other seven empirical parameters including initial dye concentration, initial pH, initial conductivity, initial salt concentration, applied voltage, electric current intensity, and process time were investigated experimentally and statistically. Achieved experimental dye removal data of 0-100% gained under different experimental conditions. The data was used for model building by employing reduced quadratic multiple regression model. Further statistical tests were applied to exhibit models goodness and significant variables. Experiments show the surprising results regarding lifetime influences on dye removal efficiency as well as other investigated parameters. The constructed model was shown the acceptable reliability and predictability. Finally, optimization of dye removal efficiency was carried out using Taguchi algorithm.