Reverse osmosis (RO) is a separation process that uses pressure to force a solvent through a semi permeable membrane. Impurities in the solvent are excluded, whilst pure solvent passes through the membrane. In other words, it is the process of forcing a solvent from a region of high solute concentration through a semi permeable membrane to a region of low solute concentration by applying a pressure in excess of the osmotic pressure. This is the reverse of the normal osmosis process.
Reverse Osmosis Technology is the tightest possible membrane process in liquid separation. In most cases the membrane is designed to allow only water to pass through the membrane while rejecting the salts. This process requires high pressure at the high concentration side of the membrane, Normally the operating pressure range is 8-60 bar depends on the type of water like fresh, brackish & sea water.
The RO membrane acts as a barrier to all dissolved salts, inorganic molecules as well as organic molecules in some amount. Rejection of dissolved salt is typically 95 to 99%.
RK Water provide the most economical process for desalination of brackish water and sea water. The system allows further integration with pre & post treatment such as media filters clarifier, microfiltration (MF), Ultrafiltration (UF) in the pre-treatment side and ultra-violet sterilizer and chlorination system, degasser & pH correction are the part of post treatment. However, there are numerous other applications in the chemical, pharmaceutical, and food industry, as well as in effluent water recycling applications.
