Total organic carbon (TOC) removal from textile wastewater by electro-coagulation: Prediction by response surface modeling (RSM)

Civil Engineering Department, Indian Institute of Engineering Science and Technology, Shibpur, Howrah-711 103,
West Bengal, India
E-mail: budhodeb1@gmail.com
Manuscript received online 03 December 2020, accepted 23 December 2020

Water pollution control is presently one of the most important areas for scientific research. Strict regulatory measures are
asking industries to treat their waste effluents up to the standards set by the governing body. Color removal, in particular,
has recently become an area of major scientific interest as indicated by many related research reports. The textile industries
use huge amount of water in their various processes of dyeing and are thus one of the largest producers of industrial liquid
waste (ILW). In this study TOC removal was evaluated by electro-coagulation using iron electrode from real textile dye waste
and mathematical model was developed to predict TOC removal performance. The parameters that were taken into considerations
were the effect of pH, time, current and initial TOC concentration. At optimum condition the removal was achieved as
95.7%.