The Basic Design and Technology behind Water Purification Systems

 The sources of water supply in India are highly polluted as a result of the increasing number of industries and the carelessness of the people. As much as we should worry about keeping the environment clean for lives to flourish, we also need to use the best water purifier India to keep ourselves healthy. For this, it is important to purify water using a suitable technology. The primary technologies used for water purification are discussed below.


Pre-filtration process removes large suspended impurities from the water. These include sand, silt and other deposits, which might be a part of the water body. This is helpful for the further processes of filtration. The carbon pre-filter works helps in removing odours and other toxic compounds from the water. Once this process is over, the water is put through the next stage of filtration.

Reverse Osmosis (RO):

In this process, water flows from an area of low salt concentration to that of high salt concentration. In RO, it is forced to flow towards lower concentration of salt and passed through a membrane, which prevents the dissolved impurities from going along with the water. It retains the bacteria, viruses and even heavy metals such as arsenic, lead, copper etc. With all the dissolved impurities removed with the best water purifier India, we move on to the next stage.

The UV Filtration

In this stage, UV light kills the microorganisms present in water. These organisms are cause a number of waterborne health disorders. The strong UV rays destroy the genetic core leaving them unable to reproduce and making the water safe. Moving on to the next stage, the water gets filtered through an ultra-filtration process.


Here, the water is made to pass through a fibre membrane, which retains the impurities behind and lets the clean water to pass through. This removes any remnants of the bacteria and viruses that might have been killed by UV filtration.

Post Filtration

Once again, the water is passed through an activated carbon filter, which removes any smell that might be rendering the water undrinkable. Once the water has gone through all these processes, it is fit to drink.

TDS Count

If the TDS level in water is beyond 550 ppm, use of aRO filter as this TDS count could be harmful. But if the TDS is within the prescribed limit you can choose to use UV+UF purification. This is recommended as the TDS levels should not become lesser than the recommended limit. To ensure that you do not lose the essential minerals from the water, many models of best water purifier India come with a TDS Controller, which helps to retain these essential minerals.

The purification processes described here use a combination of all the technologies available. You may not need to use all of them but can choose the combination as per the quality of water you get at home.