Desalination of brackish water and seawater

According to UNESCO the supply of drinking water is highly problematic in many parts of the world. A limited amount of water is available on our planet and 97.5 % of the water
in the world is salty. Because the availability of drinking water is limited, seawater is an important source of drinking water. Seawater desalination is defined as the attainment of drinking water or process water from seawater by reducing the salt content.

Pressure measurement before reverse osmosis

The crucial element in seawater desalination plants is the reverse osmosis unit. During reverse osmosis the seawater is pushed through a semi-permeable membrane at high
pressure. This membrane functions like a filter and only allows specific ions and molecules to pass through. Because seawater has such high salinity, a pressure of
60 to 80 bar is required. To ensure safe system operation, the pressure before reverse osmosis must be monitored.