The residual dyes from different industries (e.g., textile, paper and pulp, dye, pharmaceutical industries, tannery etc.) are considered a wide variety of organic pollutants introduced into the natural water resources or wastewater treatment systems. Several conventional treatment methods have been carried out for this purpose such as adsorption, coagulation, flocculation etc. However, each method has some disadvantages. Electrocoagulation is an attractive method and effective method for the treatment of various kinds of wastewater. In the present study, characterization, correlation analysis and treatment by Electrocoagulation (EC) were carried out for the dyeing effluent samples collected from the industry located between Aruppukkottai and Kariyapatti near Madurai, Tamilnadu, India. Most of the water quality parameters (WQPs) of dyeing effluent were found to be higher than the limit prescribed by Bureau of Indian Standards (BIS) for the discharge of industrial effluent. EC technique is employed for the treatment of dyeing effluent with and without adsorbent using iron and aluminium electrodes. The decrease in values of Total Dissolved Solids (TDS) was higher in the case of EC with and without Graphene (GR) and Multi Walled Carbon Nanotubes (MWCNTs) than Commercial Activated Carbon (CAC). The decrease in concentration of both anions and cations are relatively higher in EC with and without GR and MWCNTs than CAC. The result of present investigation on dyeing industrial effluent revealed that generally the EC process with adsorbent is an effective tool for the treatment of industrial effluent.
