The diagram demonstrates the process of eliminating salt from sea water to make it suitable for drinking purposes.
Overall, this process has seven stages which include the seawater being taken through the pre-treatment filter, a membrane at high pressure, the post-treatment with lime chloride, and fluoride; storage, and finally putting it in an integrated water supply system. In addition, it involves the return of byproducts such as filter backwash and seawater concentrate into the sea.
The initial stage of the desalination process starts with the salt within sea water being taken and followed into a pipe, then it is driven to the pre-treatment filter, where seawater undergoes filtration to remove particles and contaminants. Next, the seawater is forced through a membrane at high pressure, effectively blocking salt and impurities and letting water molecules go through. As a result after undergoing two stages, the byproduct consists of filter backwash and seawater concentrate going back to the sea.
Following that, the lime chloride and fluoride are added in order to interact with the water molecules in the post-treatment stage, then they will be stored in storage. And at the end of the process, the filtered water is distributed to the integrated water supply system for people to use as drinking water.