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When selecting the proper water treatment to the needs that we have is essential to take into account the great variety in the market. The most popular ones are those with membranes as the primary agent of water filtration and purification.

Today you can find different types of water treatment devices with membranes. One of them, the more permeable microfiltration is characterized by that separates the suspended solids found in water,allowing the passage of salts and large molecules.

On the other hand, water treatment system that has less capacity is permeable reverse osmosis, which only allows passage of fluid. At a midpoint between the two forms is described ultrafiltration, which removes high molecular weight components, resulting in water filtration with salts.

The ultrafiltration system works through low-pressure fluids leading to the membrane, which absorbs unwanted elements. The same is usually used as a stage prior to nanofiltration and reverse osmosis, with the aim of obtaining a completely pure water.

This type of water treatment can be used with three different types of membranes, which fit different circumstances. In this context it is important to having the size is proportional to the filtering ability.

One is the spiral membrane, which is characterized by having a wide surface on which all the water circulates and is collected in a central channel, which results in a reduced need for pumping, reducing energy costs. And it works at high pressure and high temperatures. These are the most extensively have therefore involve lower cost, provided that the conditions for obtaining the fluid is good.

Another class of membrane is tubular, with a diameter of approximately half an inch. These are distinguished from the former by support large amounts of pollutants, as well as high temperatures and high pH levels.

The last type is Hollow Fiber membranes or resistant ceramics. These are the smallest among the comparison, but are especially recommended to treat water with highly polluting agents.

It is essential to note that ultrafiltration is effective not only for water processes, but also another type of liquid and effluent, wine, juices and dairy products.