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Why To Buy Reverse Osmosis Water Filtration System ?

Reverse osmosis water purifier is becoming very popular nowadays. You will find most of the people using a RO purifier in their home. Bottling companies also use this system for purification purpose as it can remove all the harmful particles from water.

A reverse osmosis water filter can stop very minute particles to pass through it. The size of membrane pores in a RO system is approximately 0.0005 micron which is much smaller than the size of bacteria, virus or any other particle.

Generally two types of RO membranes are used in home purification system: Thin Film Composite (TFC) and Cellulose Triacetate (CTA). TFC membranes have high rejection rate and filter out more contaminants than a CTA membrane. TFC membrane is more susceptible to degrade by chlorine. Therefore, RO system should include carbon pre-filters.

A RO system includes granular activated carbon (GAC) pre-filters, reverse osmosis membrane, storage tank and a faucet for delivering purified water. The quality of a RO system depends on the quality of membrane used and storing capacity of the tank.

Semi permeable membrane used in a reverse osmosis system allows pure water to go and does not allow impurities to go through it. Pressure is used in RO system to disinfect the water and strong pumps are used to solve this purpose.

You must be thinking that if the membrane filters the impurity to give pure water then where that dust particles go. Well the membrane clear it's porous by a process known as cross flow in which the impurities are washed away along with waste water via a drain and leave a clean membrane for next filtration.

Since membranes are degraded by chlorine, iron, manganese, hydrogen sulfide and bacterial attack, a sediment pre-filter and an activated carbon pre-filter or post-filter should be used in reverse osmosis system. RO system is considered to be a best choice for water contaminated with high nitrite levels.

There is no comparison between a RO water purifier and any other water purifier because RO purifier is best among all the purifiers. But one of the limitations of RO system is that it can not purify untreated lake or ocean water alone and requires an ultraviolet water purifier for this, otherwise it is a best solution for cleaning water.

Article Source: GardenGap.com

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