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Reverse osmosis (RO)

Reverse osmosis is a pressure-driven physical process for separating liquids and substances dissolved in them.
They are used in particular at saltwater desalination, water softening or at process water and ultrapure water preparation.
In the process the water to be desalinated is pressed under partially very high pressure through a semi-permeable membrane. The salts are concentrated before the membrane, while almost completely demineralised water remains after the membrane. Reverse osmosis membranes have to withstand high pressures. In order to avoid crystallising in the membranes, so called anti-scalings are dosed. A protective filter or an ultrafiltration stage is usually positioned upstream in order to protect and relieve reverse osmosis. RO systems are often constructured in several stages.

Graphic reverse osmosis

We would be pleased to provide further information on request. For data about the system design please refer to the PDF file in the download area.

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Information reverse osmosis
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