ZLD at a textile major
Thermax recently installed a Zero Liquid Discharge (ZLD) plant with a recycling capacity of 3.6 million litres per day (MLD) at a textile major located at Ambasamudram, Tamil Nadu. This system consists of an effluent treatment plant (ETP), recycling plant & multiple effect evaporators (MEE). The wastewater generated from manufacturing activities such as thread dyeing and bleaching are treated in the ETP followed by the recycling plant. The membrane filtration based processes help recover good quality water from this treated wastewater. While the recovered water is used by manufacturing units, the rejected water is sent to the MEE. MEE reduces the volume of the waste to be handled, thereby disposing off the brine generated; leaving zero discharge at the end of the treatment cycle.