The diagram below shows how salt is removed from sea water to make it drinkable. Summarize the information by selecting and reporting the main features, and make comparisons where relevant.

The presented diagram depicts the method of removing salt from sea water so that it becomes drinkable. From an overall perspective, before being ready to consume, sea water needs to traverse 6 stages. The first stage is when salt water is taken out from the sea and the process ends with the transmission of drinkable water to an integrated water supply system. In the first stage, water from sea is carried out through a pipe and then passes the pre-treatment filter. At the same time, the filter backwash is returned to sea. After that, water is urged to pass through the membrane with high pressure. Salt and impurities are released and separated with the water molecules. As a result, the sea water concentrate is sent back to sea. Then, the water molecules are entered into the post-treatment. In this stage, water is added with lime chlorine and fluoride to make it purer. Finally, consumable water is collected in a storage and ready to transfer to an integrated water supply system.