Abstract:

After the water consumption revamping and cascading using, the wastewater with high salinity must be treated by highefficiency chemical soften device, nanofiltration, multistage reverse osmosis system, disk tube reverse osmosis and forced circulation crystallizer before meeting the requirement of makeup water of circulating water. At the same time, industrial salt is obtained whose purity is up to 98.5%. The technology can provide reference for zero discharge of highsalinity waste water in thermal power plants.

Key words:

zero discharge of high salinity wastewater, nanofiltration, multistage reverse osmosis system, disk tube reverse osmosis, forced circulation crystallizer