Reverse Osmosis Indonesia (RO System)
Reverse osmosis system (RO system ) is a water purification technology that uses an impermeable membrane to remove larger particles from drinking water. In reverse osmosis system, an applied pressure is used to overcome osmotic pressure, a collective property, driven by chemical potential, a thermodynamic parameter.
Reverse osmosis system ( RO system ) can remove many types of molecules and ions from solutions, including bacteria, and is used in both industrial processes and the production of potable water. To be “selective”, this membrane should not allow large molecules or ions through the pores (holes) but should allow smaller components of the solution (such as the solvent) to pass freely.
In the normal osmosis process, the solvent naturally moves from an area of low solute concentration (high water potential), through a membrane, to an area of high solute concentration (low water potential).Applying an external pressure to reverse the natural flow of pure solvent, thus, is reverse osmosis system
The process is similar to other membrane technology applications. The main removal mechanism in membrane filtration is straining, or size exclusion, so the process can theoretically make the perfect exclusion of particles regardless of working limits such as influent pressure and concentration.
Moreover, reverse osmosis system involves a diffusive mechanism, so that separation efficiency is dependent on solute concentration, pressure, and water flux rate. Reverse osmosis system is most commonly known for its use in drinking water purification from seawater, removing the salt and other effluent materials from the water molecules.