In today’s world Water purifiers have become a basic necessity for everyone. It is the most important source of getting pure and clean water which is our necessity. There are various types of water filtration techniquess, for instance – Reverse Osmosis Water Filtration (RO), Ultra Filtration (UF) and Ultra Violet sterilization (UV) but making a wise choice is really difficult. Market is flooded with wide variety of devices and every manufacturer claim that their devise is the best. Therefore we need to carefully analyse how these systems work before arriving at any conclusion.
The RO technique works on a simple principle. It has a semi permeable membrane that filters all types of contaminants including pathogens, chemicals and disintegrated solutes. This is one of the most effective procedures that makes desalination ( process of removing salt from sea water)conceivable. Many RO water treatment plants have started taking advantage of the Reverse Osmosis system to manage any water-related issues.
The various components of RO purifier and their functioning is given below-
- Pre-filters- These are vital part of RO system as these eliminate the chlorine content and other sediments which may harm the system. Water is passed through the frosty water line valve into the RO Pre-Filters where residue and carbon is filtered from water filter are the generally utilized filters.
- Reverse Osmosis Membrane- It is a significant component of RO device and is semi permeable. It effectively removes a wide range of contaminants from water at the point where it enters the storage tank.
- Storage tank- As the name suggests the storage tank is used to store the treated water. The tank can store around 2-4 gallons of water easily.
- Post-filters- This is a carbon filter and also the final stage of water purification. Before the water is stored in the storage tank it comes out of the Reverse Osmosis faucet and enters through the post-filter for getting purified. It is removes bad odors and adds sweetness to the water.
- Drain line- The drain line drains out the waste water Including dirt and other contaminants.
Ultra Violet sterilization
It makes use of an Ultraviolet light to give us pure, clean and safe drinking water. This UV light also known as UV-C or germicidal UV attack the pathogens and can enter into a body thereby altering the DNA of the pathogenic living beings due to which these get deactivated and can’t cause sicknesses. These beam of rays are highly effective as these can kill 99.9% of the microbes. Unlike chemical disinfection, the organisms can’t build up any immune mechanism against UV light. Pre-treatment strategies like carbon channel, sediment channel and water softener can be used to boost the productivity of the treatment. Sediment filters eliminate the residual matter while natural materials are expelled through the carbon channels. The unwanted minerals are expelled through the Water softener.
Ultra Filtration is a kind of layer filtration which makes use of hydrostatic pressure to constrict the flow of fluid against a semi permeable membrane. This semi permeable membrane filters pathogens and removes any kind of foul smell in the RO water. Ultra Filtration is not the same as reverse osmosis, microfiltration or Nano Filtration, with the exception of the size of the atoms it holds. To the extent the ultrafiltration strategy is concerned, it is better in the case of evacuation of colloids, harmful microbes and different atoms that are bigger than the size of the pores in the semi-penetrable membrane.
So different devices make use of different techniques of working though their main role is to purify water. In some cases single technique is used and in others a combination of techniques is employed to get safe and healthy drinking water.