Published Paper Details:

Waste water generated from car wash service station contributes to majority of environmental contamination because of the chemical characteristics present in the car wash water. This research work compares the effectiveness of treating car wash water collected from car wash station located in Coimbatore using naturally available water hyacinth, chemical(alum) and electrocoagulation (Cu - Cu, Cu - Al, Al - Al) method. Different parameters like pH, turbidity, Chemical oxygen demand, oil and grease, total organic carbon were characterized for the collected car wash water. Oil and grease, Chemical oxygen demand contributes to majority of pollution. Experimental results show that electro coagulation method have better removal efficiency of oil and grease, Chemical oxygen demand and turbidity. Maximum Chemical oxygen demand removal efficiency of 61% and oil and grease removal efficiency of 70% has been attained by electro coagulation method. Water hyacinth has also shown a good result with Chemical oxygen demand removal efficiency of 50% and oil and grease removal efficiency of 54.5%. Electrocoagulation method has been found to give better results for the treatment of car wash water.