The diagram below shows how salt is removed from sea water to make it drinkable.
The diagram outlines the process of seawater purification and its integration into the water supply system.
There are three treatment steps in the purification process to make the seawater drinkable.
As soon as some saltwater is taken from the sea, it goes to the first stage of filtration. Once it is processed with the pre-treatment filter, the filter backwash is transported back to the sea. After that, the water remaining is piped through the membrane filter to be subjected to
a
high pressure, where the salt and other impurities are separated to be washed back as concentrates.
In the final step, the purified water molecules are treated with chemical additives Correct article usage
apply
such
as lime, chlorine and fluoride, which makes this
liquid potable and suitable for household purposes. As a result
, the purified substance leaves the filtration system to be stored in tanks before being integrated into the supply system and used domestically.Submitted by SvetlanaDinara on
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