What is the desalination of water?

water desalination is a process of removal of salt and other minerals from water to make water suitable for drinking or irrigation. The by -product of this process is a brine, which can be processed for table salt. Water desalination is used to produce fresh water in communities where drinking water is naturally found. It is also used to create fresh water for use on ships and submarines.

Due to specialized equipment, water desalination is more expensive than the use of naturally occurring water sources such as lakes, springs and rivers. For this reason, water desalination is economically feasible only if it is difficult or impossible to obtain fresh water from natural sources. One way to reduce the cost of desalination of water is to pair the desalination plant with an energy plant, and then use a thermal by -product from the power plant to help desalination of water.

Many countries use desired water. Some examples are the United States, Australia, IZrael and Saudi Arabia. Although water desalination tends to be expensive compared to the use of naturally occurring groundwater, some studies suggest that it is generally cheaper than the use of extensive water recycling programs.

There are several methods that water can be designed. One of the most common methods of desalination is a multi -stage lightning distillation (MSF). In the MSF, the water blinks on the steam using a series of heat exchangers. Thermal exchangers allow efficient heat transfer from one medium to another. As water condenses, salt and other minerals will remain behind.

Another method of desalination of water uses reverse osmosis. In this process, a membrane filter is used to remove minerals from water. The water is pushed at high pressure by membrane. The water is able to move the membrane, but salt and other minerals cannot. Thje process also used to clean fresh water.

the desalination of water causes someEré concerns about the environment. It is difficult to remove water from the sea without damaging sea life. Beach wells can solve this problem; However, they reduce the amount of water that can be harvested and requires more energy.

Another big problem in the environment is what to do with a by -product. The browse a by -product has a concentration of salt much higher than natural seawater. This can be harmful to fish if it is thrown into the ocean. This problem can be solved by mixing the brine with a by -product of water from other plants or by throwing it away in places where the current is most likely to distract salt.