Chemical Engineering @ChemengFiles.Com

The salt water purification is a matter of extreme importance, since in the coming years freshwater availability will decrease, and should be thinking parallel tracks for human survival. These include the conversion of salt water into fresh (or drinking). Considering that 97.5% of water on the planet is salty (most of the sea), can not help but conclude that something must be done to treat drinking this water.

Before proceeding with this issue, we must be clear that it is salt water. Is the water in the sea or in lakes and rivers connected to the sea (through some arm). Salt dissolved solids content must be maintained between the values: 1.000 mg / l and 10.000 mg. / L. Although the seawater, this rises to: 10,000 mg / l and 40,000 mg. / L.

Now the problem is that humans can not consume water with a salt content higher than 1.000 mg. / l. Therefore, we must treat them with industrial processes, so that can be consumed later. Among these water treatment can be applied to convert seawater to drinking water, reverse osmosis is the most suitable, for desalination and water desbacteriza.

More and more are being built desalination plants, and have greater growth in the future. These plants are unusual in order to be transported, which further facilitates the realization of the processes. In addition, it saves time for field work, and need not be installed or put into effect once they are used. They are used in industries, civilian and military bases in areas of development in small towns, etc..

In addition, demineralization of drinking water is extremely vital for industrial processes. This water is used especially for boilers, to replenish their water supply (at thermal cycling). It is also used for tests or procedures quite where it should be used as raw material water immutable characteristics that do not change or be transformed over time, and that the sample serves to generalize in several processes. The food industry is using much water to keep the original flavor of the food product.

However, there are some processes where it is not recommended to have salt water tanks. Some of them are the object of the electronics industry, the metalworking and textiles.