1Professor, Department of Civil Engineering, Basaveshwar Engineering College (Autonomous), Bagalkot
2M. Tech Scholar, Basaveshwar Engineering College (Autonomous), Bagalkot
Molasses-based distilleries are one of the most polluting industries generating large volumes of high strength wastewater which poses a serious environmental concern. These units generate large volume of dark brown coloured wastewater known as spentwash. Even after biomethanation, the effluent contains considerable amount of organic matter and requires further treatment before its final discharge to the water body. The present study focuses on the use of bagasse activated carbon to adsorb pollutants and colour from wastewater. The primary treated wastewater was diluted and the studies were carried out in batch, to optimize the parameters like adsorbent dose, pH and contact time for the removal of pollutants and colour. The maximum percent reductions of COD, colour, and TDS with bagasse activated carbon were observed to be 95.4%, 62.83% and 89.8%, respectively. The equilibrium data of the study followed the Freundlich and Langmuir adsorption isotherm.
Biomethanated distillery spent wash, activated carbon, adsorption isotherm
