Desalinated Water

This is the process of desalination. 

In September 2005, Singapore turned on its fourth National Tap, with the opening of the SingSpring Desalination Plant in Tuas. The SingSpring desalination plant was PUB’s first public-private partnership (PPP) project. This plant can produce 30 million gallons of water a day (136, 000 cubic meters) and is one of the region’s largest seawater reverse-osmosis plants.

Like its predecessor NEWater, desalinated water is the result of PUB's continued investments in water technologies and research. Recent advancements in technology and cheaper membrane prices have made desalinated water another viable source of water supply for Singapore.

At the SingSpring plant, sea water goes through a pre-treatment process where suspended particles are removed. In the second stage, the water undergoes reverse osmosis (RO). This is the same technology used in the production of NEWater. The water produced is very pure and is remineralised in the third stage. After treatment, desalinated water is blended with treated water before it is supplied to homes and industries in the western part of Singapore.