Reverse Osmosis Membrane
This is one of the most efficient methods of water softening. A lot of processes are involved here, but the initial stage involves passing the water through a semipermeable membrane and other larger particles. Some of the particles from the hard water such as calcium and magnesium ions are removed in the osmotic membrane chamber. In this chamber, these ions are separate from the water, and this is possible because the membrane has very tiny holes which can only allow water molecules. A single solution used for water softening and for water purification. This therefore, means that only pure water will be allowed to pass through the membrane and that means that the water will have been softened. Reverse osmosis/Hyperfiltration completely removes contaminants and is one of the most used water purification processes around the world. In addition to water purification, the reverse osmosis process works in desalination of water, concentration of liquids and kidney dialysis.
How does a Reverse Osmosis Membrane / RO membrane work?
Reverse osmosis works by forcing water through a membrane. RO Membranes play an important role in the production of Industrial Potable water. A water purification technology that uses a semipermeable membrane to remove ions, molecules and larger particles that are present in water. The Reverse osmosis uses an applied pressure to overcome osmotic pressure. A Reverse osmosis membrane removes all kinds of contaminants including bacteria. This aids in removing some chemicals from the water.This is the “reverse” in reverse osmosis, since the pressure is needed to reverse the natural process of osmosis, according to the Water Quality Institute. Natural osmosis, the less concentrated water (purified) will move to water with greater concentrations of minerals, particles, etc., in order to dilute it.
Advantages of a RO Membranes
- It is the best method for water softening.
- No ion particles can be allowed to enter through the semipermeable membrane.
- Simple maintenance.
- Environment Friendly.
- They require a minimal amount of power.
- Reverse osmosis systems work well in home filtration systems because they are typically small in size.
- Taste of the purified water is another distinct advantage.
- Prevention of corrosion caused in Pipes and Motors.
Disadvantages of a Reverse Osmosis Membranes:
- A lot of energy is required for the whole process.
- Lot of pressure needed so that deionization can occur.
- The water becomes acidic because it has been deionised of all its mineral content.
- It is not advisable drinking water from the process because naturally, the water must possess some minerals which help in the functioning of the body.
- Reverse osmosis requires an enormous amount of water. And typically return as little as 5 to 15 percent.
Reverse osmosis is a very effective way of water softening and water purification.