What is Reverse osmosis?
Update time: 23-01-28 Views: 453
What is Reverse osmosis?
By Zhao from Onlyzone,a manufacturer of water treatment bio ceramic ball filter media in China.
Reverse osmosis is a new membrane separation technology developed in the 1960s.
It relies on reverse osmosis membrane to separate the solvent and solute in the solution under pressure.
The full English name of reverse osmosis is "REVERSEOSMOSIS", abbreviated as " RO".
Why is it called reverse osmosis:
First of all, we must understand the concept of "osmosis". Osmosis is a physical phenomenon. When two kinds of water with different concentrations of salt are separated by a semi-permeable film, it will be found that the water on the side with less salt will permeate The membrane penetrates into the water with high salt content, but the salt in it does not penetrate. In this way, the salt concentration on both sides is gradually merged to equalize. However, it takes a long time to complete this process. This process is also called For infiltration. But if a pressure is applied on the water side with high salt content, the above-mentioned infiltration can be stopped as a result. If the pressure is increased, the water can infiltrate in the opposite direction, and the salt remains. Therefore, the reverse The principle of osmotic desalination is to apply a pressure greater than the natural osmotic pressure in saline water (such as raw water), so that the osmosis proceeds in the opposite direction, and the water molecules in the raw water are pressed to the other side of the membrane to become clean. water, so as to achieve the purpose of removing impurities and salt in the water.
