Tailor-made High-pressure technology for reverse osmosis

Reverse osmosis can change the concentration of substances dissolved in liquids. The physical process is used in many different applications. A common application is water treatment by seawater desalination. In order to reverse the natural osmosis process, an increased working pressure must be applied.

URACA provides tailor-made solutions for this. The high-pressure pump technology works reliably, efficiently and can be individually adapted to the requirements of a wide variety of applications.

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  • tailor-made solutions
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  • high efficiency of 92 to 94 percent
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  • ideally suited for continuous operation
  • wide range of different pump sizes
  • energy efficient operation

What is reverse osmosis?

Reverse osmosis is a physical process that reverses the natural osmosis process by pressure and changes the concentration of solutes in the liquid. The separation of liquids of different concentration takes place through a semipermeable membrane. The pressure to be applied must be greater than the natural osmotic pressure to balance the concentration of the two fluids.

The reverse osmosis process forces liquid at high pressure through the semipermeable membrane. The semipermeable membrane is made of materials such as PTFE or polyamide and has fine pores with diameters of only a few nanometers. Thanks to the high pressure, the fluid can overcome the natural osmotic pressure and penetrate the membrane. The membrane acts as a kind of filter and holds certain molecules or ions.

After penetrating the membrane, the liquid is "purified" and has a lower concentration of solutes. On the other side of the membrane, however, the concentration increases. The reverse osmosis and the "membrane filter" remove, for example, viruses, bacteria, salts, lime, toxins or heavy metals from the liquids.

In order to operate reverse osmosis systems economically, high efficient pumps are necessary. Since this is a continuous process, the pump technology must be suitable for continuous operation and work reliably. High quality and robust materials are used.

Components which come into contact with the fluids are made of stainless steel, for example. The pumps must be individually tailored to the respective requirements of the various reverse osmosis applications. In applications such as seawater desalination, the crystallization of salts in the membranes must be prevented.

Reverse osmosis is used wherever it is about cleaning, desalting or separating liquid media. In industrial applications, the process provides for process water or drinking water treatment. In drinking water production, for example, reverse osmosis removes microbes from the water. In areas with little or no fresh water, the process water or drinking water treatment by seawater desalination is possible.

Since reverse osmosis can also increase the concentration of solutes in liquids, the range of application of the process is expanded. Exemplary applications for increasing concentration are the production of fruit juice concentrates or non-alcoholic beer.

Reverse osmosis offers the possibility of changing the concentration of dissolved substances in liquids. The pressure required for the physical process is provided by URACA pumps. They are specially adapted to the requirements of reverse osmosis and the various media and are available in a large selection.

Do you have any questions about pump technology for reverse osmosis? Contact us now. Our experts gladly advise you in detail.