Removal of Acid Violet 17 by Electrocoagulation Using Plain and Extended Surface Electrodes

Removal of dyes from industrial effluent is currently a major ecological issue. Several researchers have stated that electrocoagulation (EC) is an effective technique for the removal of dyes. Therefore, in this study, the removal of Acid Violet 17 (AV 17) dye by EC that uses plain and extended surface electrodes will be performed. The effect of major factors, such as polarity change, pH, current, spacing, speed, and sodium chloride (NaCl) on dye removal efficiency will be investigated using aluminum (Al) and iron (Fe) electrodes. In this study, the maximum dye removal obtained using an extended surface electrode (100%) will be compared with a plain electrode (95%) that used Fe-Fe electrodes. Further, the performance of the EC process was confirmed with different electrode configurations, such as normal, series, and induced mode. The EC process that used extended surface electrodes required less time and had lower economic operating costs for the treatment of synthetic and actual effluent. The results from this study confirmed that an EC process could be a sustainable option and Al-Al and Fe-Fe electrodes in a monopolar configuration was the best mode for the removal of dyes. (C) 2021 American Society of Civil Engineers.