Comparison of high-performance TiO<SUB align="right">2-coated Al electrode (TiO<SUB align="right">2/Al) and conventional electrodes in removal of dyes using electrocoagulation reactor

The process of electro-coagulation is quite complex in nature and an understanding about the process and the effect of primary operating parameters is a prerequisite for larger scale and field application. This work aims at studying the performance of electro coagulation reactor in a batch scale system for the treatment of textile dyeing wastewater using iron and aluminium electrodes. The influence of the essential operating parameters like the initial dye concentration, applied current, pH, reaction time and the electrolyte concentration in removal of dye were premeditated. Also, the impact of these parameters on the economic parameters such as electrode and energy consumption which are directly proportional to the operation cost was also analysed. TiO2/Al electrode showed maximum colour removal efficiency of nearly 100% with 60 mA of current whereas, Fe and Al electrodes showed maximum efficiency of 98% and 75% at 120 mA respectively.