Reverse osmosis (RO) is a method borrowed from nature. The technology has been tried-and-tested in water treatment systems all over the world for decades.
The natural osmosis process is reversed with reverse osmosis. This means water is pressed through a semipermeable membrane at high pressure.
Pure water molecules can pass through this without problems due to their molecular size. Dissolved salts, such as nitrates, sulphates and chlorides together with heavy metals and even microorganisms, such as bacteria, are filtered out. The feed water flow is separated under pressure into pure water (permeate) and the undesirable substances (concentrate). The so-called concentrate is discarded, while the permeate is supplied to the intended technical use.
Through the reverse osmosis, the salt content of the water is reduced by approx. 97-98 %, thus reducing the conductibility of 500 µS/cm in the untreated
water to approx. 10µS/cm in the permeate.