Seawater desalination

Out of the 70 cities around the world with more than one million inhabitants that have no direct access to additional fresh water resources, 42 are located on the coast. In addition, 39% of the world's population lives less than 100 km from the sea (or some 2.4 billion people). These two factors make the desalination of sea a genuine alternative resource, which uses a virtually inexhaustible raw material.


Developed by Degrémont, reverse osmosis is a desalination process that uses membrane technology to retain the salt contained in the water. This technique plays a key-role for areas with scarce natural resources often due to the combined effect of demography and geography. SUEZ ENVIRONNEMENT has built over 250 installations in the past 30 years, with a daily capacity to desalinate more than two million cubic meters water.