Question

what is the use of 'reverse osmosis'.

Answer 1

Reverse osmosis is most commonly known for its use in drinking water purification from seawater, removing the salt and other effluent materials from the water molecules.

Answer 2

In wastewater treatment, reverse osmosis is a water purification technology that, like ultrafiltration, uses a semipermeable membrane to remove larger particles from drinking water. But in reverse osmosis, an applied pressure is used to overcome osmotic pressure, a colligative property that is driven by chemical potential, a thermodynamic parameter.