RO (Reverse osmosis) is considered one of the most important water purification technologies. The contaminants present in water are removed by pushing water under pressure through a semi-permeable membrane. Pure water is thus squeezed out which is fit for drinking. RO is also used in the desalination of seawater. RO is a reliable source for obtaining potable water. The process eliminates dissolved and suspended impurities, even bacteria. The membrane is small enough to allow the solvent molecules to pass but does not allow large ions or molecules to pass through its pores.
