This document summarizes the reverse osmosis effluent treatment plant installed at Vedanta Aluminium's smelter in Jharsuguda, India. The plant treats 250 cubic meters per day of effluent from the smelting process to remove over 99% of fluoride and other pollutants. It uses various stages including sand filtration, ultrafiltration, and double stage reverse osmosis. Treated water is recycled while rejects are concentrated in an advanced solar pond and disposed of properly. The plant achieves zero liquid discharge and reduces the company's water usage substantially.