The first commercial operation of RO occurred in the 1970’s. Compared to MSF and MED, it is a recent technology. RO uses semi-permeating membrane to separate the water from the solute in the seawater. In RO, most of the energy is needed to pressurize the feed water.
The seawater desalination by RO system consists of pretreatment system, high pressure pump and RO membrane. The auxiliary units include water intake and effluent systems and power reception and transmission systems.
