The diagram gives information about the process of separating salt from seawater to make it suitable for drinking purposes.
Overall, the desalination process consists of seven stages, starting with taking saltwater from the sea into the system and ending with obtaining purified drinking water.
The process starts with the saltwater being taken, then it is driven into the pre-treatment filter, where seawater undergoes filtration to remove larger impurities and particles. Following this, the filtered water is forced through a membrane at high pressure, effectively blocking salt and other impurities, and allowing water molecules to pass through. Then, impurities and salt stay out, and this is called seawater concentrate. The seawater concentrate goes back to the sea like filter backwash.
Following that, post-treatment is started, and lime, chlorine, and fluoride are added. Subsequently, the filtered water is passed to the storage where it will be stored. At the end of the process, the filtered water is distributed to the integrated water supply system for people to use as drinking water.