Once up on a time there were no industries, no deforestation and less pollutions, so water was clean like the air. The dead and decaying plants and animal carcass created antibody giving the rivers their mysterious healing power.
Now things are different, water is polluted, and we need to purify water. So how does water get cleaned? What are processes that allows purification. But before that let us look at the relevance of water.
Earth is made up of 82% of water was what we learnt at school, the USGS water science school says that it is 71% lets stay with that. This water manifests as different water bodies, oceans, seas, lakes, rivers and even within us.
In our everyday life we need water to sustain us, we either drink it or used it cook, we also use water to bathe and clean. Water is an essential part of our existence.
The 2014 WHO report claims that 842,000 deaths/year are courtesy waterborne disease. These deaths could have been prevented if adequate care had been taken. Clean, safe portable water is necessity. Indiscriminate urbanization like remote location is hugely challenged when it comes to sanitation. This also raises challenge to safe and hygienic drinking water. Water contains, ions, algae, nutrients, parasites sometimes minerals and lot more.
various methods are used for purification, these methods are established depending on the purpose of water consumption.
- Boiling water of course is the most traditional way of doing things
- Filtration. This is a physical process and eliminates water and gross particle suspensions.
- Distillation or boiling water condensing it and collecting it is another popular method.
- Sedimentation, uses basin or clarifier, it separates amorphous metal hydroxide from water, this is commonly called demineralization. Studies however say that removing minerals from water could cause digestive and urinary problems.
- Slow and rapid sand filtration, are biologic process where sand is used . water seeps through the layers of sands, slowly until it is safe for consumption. In the rapid sand filter activated carbon is used which removes taste and odor from water.
- Flocculation and coagulation is the term that is used when chemical components are added to water to remove unwanted particles both organic and inorganic.
- Chlorination is another popular methods, but this harmful both to germs and humans.
- Iodinization is done using 2% tincture of Iodine, this kills, bacteria and viruses when added to water but is only moderately effective when it comes to Protozoa.
- Calcium hypochlorate or Pool Shock is used. It is safe and effective as long as it is not mixed with other chemicals or algaecides. It is quite economic to. But it is essentially an alternate chlorine product.
- Finally we have the ultra violet rays. For this method to be effect the water needs to be clear.
Despite the efforts of the municipalities to ensure that water supplied to houses are safe, the water is not safe to portable and consumed. Being aware of this most of us boil or filter the water. Boiling does eliminate lot of germs but it has its limitations. Water needs to boiled for at least 20mnts to kill the microorganism. It could get recontaminated when it cools down. It consumes time and alteration of taste occurs with the escaping oxygen.
UV Light is a safe way to purify water, it can destroy the micro-organisms. This process is the ultraviolet germicidal irradiation and it uses 250-270 nanometer wavelength of ultraviolet light rays. Unlike the chlorinated water, it does effect the taste or smell of water.
UV light process is a physical one and not a chemical one. it renders the microbe ineffective by destroying the genetic material inside the cell. Though it is possible render water totally sterile, it is not practical when it comes to household applications, which is the claim is the water is 99.99% microbe free.
With UVLight the advantage is major disease causing bacteria like E.coli, typhoid, dysentery etc. get nullified without changing the taste or smell of water.
There are a few limitations however like
- UV purification is effective when the light is strong and exposure to the water is adequate.
- The water should be clear of suspended and dissolved particles so that its intensity is not reduces.
- Unfiltered water could shield microbes from UV-rays.
The RO and UV purification system offered by Livpure makes it the best option as passes the water through 6 filters, including the RO filter filtering the water so that it is almost crystal clear, this is now allows the intensity to be optimal, water is clear there is nothing to shield the microbe from the UV rays, so the water becomes microbe free. Finally essential minerals are incorporated into the water to ensure that the water is healthy.
Livpure has products of various efficacy and economy… you could choose the right one for you here.. RO water filter prices..if you are confused how to choose you could invite the Livpure expert to check the quality of the water in your zone and choose the right one.