Reverse Osmosis Plants - High-pressure Membrane Technology (8-70 Bar) | Cross Flow Filtration Method For Efficient Water Purification

We provide RO plants which are based on the reverse osmosis process to clean impure water. Reverse osmosis is the process of forcing a solvent from a region of high solute concentration through a membrane to a region of low solute concentration by applying a pressure in excess of the osmotic pressure. As Reverse Osmosis does not occur naturally, it must be created by applying pressure to the high solids water in order to force it through the membrane, with pressures from 8 - 14 bar for fresh and brackish water, and 40 - 70 bar for seawater, which has around 24 bar (350 psi) natural osmotic pressure which must be overcome. The membranes used for reverse osmosis have a dense polymer barrier layer in which separation takes place.

Operating process:
Our RO Plants work on the Cross flow Filtration method, which takes the feed water and uses a percentage of it as a wash or reject stream, removing the solids during the filtration process. The product flow of an RO is mainly a function of temperature and pressure. RO units do not deliver to service all of the water that is fed to them. During operation, some of the incoming water is used to wash down the membrane, and only part becomes finished product water. Purified water is referred to as product and wastewater is referred to as concentrate, or reject. The percent of water delivered as product is called the recovery, and depends upon the membrane and on total RO unit design considerations