Desalination is used all across the world. Desalination gives people access to clean, drinkable water. There are three methods of desalination: electrical, thermal, and pressure. The cons of desalination are that it is very expensive to build and maintain the machine. However, desalination is the best cost-effective solution for the world’s water crises.

It is essential for us to take care of a basic need: water. The world's population will continue to expand; water supplies will become more insufficient as time goes by. The world is made up of 70% of water; shortage of clean water should not be a global problem. Desalination is the best cost-effective solution for the world’s water crises. Desalination removes salt, producing fresh water …show more content…
It can occur in many different ways and steps. Generally thermal desalination is the process of warming seawater. Once the seawater is heated, it starts to collect water vapor (once the vapor starts to cools). The salt is removed and the water becomes drinkable Thermal desalination not only removes salt, it also removes other contaminants. Thermal desalination has been practiced for more than seventy years. Although the consumption of energy and costs are generally higher than the reverse osmosis and the electrical processes, it currently provides most of the processed drinking and processed water. The most common method for desalination is reverse osmosis. The reverse osmosis membrane is designed only to allow water to pass through the dense layer. “Reverse osmosis is a process where pressure is used to push the water solution through a membrane, with the membrane preventing the larger solutes (the salt) to pass through.” (Justin) This is a natural process. Reverse osmosis is dependent on flow rate and pressure. Reverse osmosis pressure can also recycle itself. The high pressured salt water is pushed out (very rapidly) through a large motor. The large motor then begins to re-harvests the force. The pressure can then be reused to pump the initial force of the water, thus recycling the energy. This saves