Reverse Osmosis is a filtration process that uses pressure to force a high concentration solution through a semipermeable membrane into a lower concentration solution. This process is used in various applications such as water treatment and the production of sugar and salts. It is called “reverse” because it reverses the natural process of osmosis.
Reverse osmosis is a process that uses pressure to force a high concentration solution through a semipermeable membrane into a lower concentration solution. It works through the following processes:
Pressure is applied to the high concentration solution, forcing it through the semi-permeable membrane.
The semi-permeable membrane only allows water molecules and small dissolved molecules to pass through, preventing the passage of larger molecules and impurities.
The filtered solution, with a lower concentration, is collected on the opposite side of the membrane, while the concentrated solution is discarded.
The semi-permeable membrane must be cleaned and regenerated regularly to ensure the efficiency of the process.
The pressure needed to force the concentrated solution through the membrane is provided by a pressure pump, usually electric.
It’s important to note that, unlike natural osmosis, reverse osmosis requires pressure to work, and that pressure needs to be greater than the osmotic pressure of the concentrated solution.
Reverse osmosis is widely used in a variety of applications including:
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