The given diagram highlights the process be which salt is removed from sea water to make it drinkable. Overall, the picture depicts a production of drinkable water appears to composed of five steps, starting by intaking sea water into type and ending with integrating water into supply system.
The process commences when salt water intake from seas into tube, after that goes into pre-treatment filter. During filtration, some of water goes through filter backwash, which in turn returned to sea, while another part goes to next step. In the stage that follows, water forced through membrane at high pressure, where impurities and salt divided from water molecules. As this happening, sea water concentrate return to sea.
Once water molecules intake to post- treatment with line, chlorine and fluoride, it is then flow into storage. The process ends with integrating water from storage to supply system.