WHAT IS REVERSE OSMOSIS? Reverse osmosis (RO) is a special type of filtration that uses a semi-permeable, thin membrane with pores small enough to pass pure water through while rejecting larger molecules such as dissolved salts (ions) and other impurities such as bacteria. Reverse osmosis is used to produce highly purified water for drinking water systems, industrial boilers, food and beverage processing, cosmetics, pharmaceutical production, seawater desalination, and many other applications.
Reverse osmosis (RO) is a filtering method that can filter out large molecules and ions from a solution by applying pressure to the solution when the solution is on one side of the selection membrane (filter layer). This process makes the solute settle in the pressure flowing layer so that the pure solvent can flow to the next layer. The selection membrane must be selective or be able to sort out, which means that the solvent can be passed (or a smaller portion of the solution) but cannot be passed by solutes such as large molecules and ions.
Osmosis is a natural phenomenon that occurs in the cells of living things where solvent molecules (usually water) will flow from a low concentration area to a high concentration area through a semipermeable membrane. This semipermeable membrane refers to any cell membrane or membrane that has a similar structure or part of a cell membrane. The movement of the solvent continues until a balanced concentration is reached on both sides of the membrane.
Reverse osmosis is a process of forcing a solute from an area of high solute concentration through a membrane to a region of low solute using a pressure that exceeds osmotic pressure. In easier terms, reverse osmosis is pushing a solution through a filter that captures solutes from one side and allows pure solvent revenue from the other side.
To get fresh water from sea water can be done by reverse osmosis, a process of filtering sea water using pressure flowed through a filter membrane. This system is called SWRO (Seawater Reverse Osmosis) and is widely used in marine vessels or clean water installations on the coast with raw water.