The Theory Of Water Purifiers}
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Submitted by: Neha M Rastogi
“Water, this most precious commodity, is in peril in virtually all parts of the globe.” – Marq De Villiers
The concept of purification of water has gained a huge importance in India in the last few years. Factors such as Industrialization, over reliance on the use of pesticides, old pipe and damaged pipe lines, dependence on ground water which contains excessive levels of impurities, along with the global water crisis and climate changes has made the purification of water necessary.
Whats In Your Water?
If you are drinking tap water or underground water, the answer to that question is that there are more than 300 pollutants, according to research from the Environmental Working Group. Among these contaminants are:
1) Volatile Chemicals such as pesticides, Insecticide and other chemicals. These chemicals are found in most municipal water sources and even in well and other sources due to modern agricultural activities and contamination. Various studies have proved that these chemicals damage in the reproductive system, liver, kidneys and more.
2) Heavy Metals like lead and mercury are found in some water sources and have been linked to many health problems.
3) Other impurities such as dust, sand, dead insects and other sediments
So what are the options for those of us not interested in drinking a chemical cocktail every time we are thirsty?
1) Boiling water: – This is the most common and widely used form of water purification technology available. It is as ancient as the history of man himself. The advantage of this method is that it eliminates almost all of the germs of water. Another advantage of this method is that it cost effective. Boiling effectively kills all harmful micro-organisms but does not affect impurities like dust, sand, etc. It is also not able to remove dissolved impurities present in the water.
2) Chemical Disinfection (chlorine, bromine, iodine): Direct use of these chemicals or using water purifiers which these chemicals are common. But you will find it hard to believe that municipalities use the same technology for purification. This process can help you get rid of some micro organisms, however it is totally ineffective in removing suspended impurities like
Dust and sand as well cysts which are a major cause of water borne diseases. Another major disadvantage of this technology is that the disinfection process may lead to creation of harmful chemicals known as disinfection bi-products (DBP) that are carcinogenic (cancer causing) in nature.
3) Reverse Osmosis (RO) based water Purifiers: – RO technology is among the best known purification technology to the man. Reverse Osmosis, a water treatment method traditionally known for removing salt from seawater, is also used to purify drinking water by forcing untreated water molecules through a semi-permeable membrane or filter. The membrane blocks contaminants and the impurities are subsequently expelled from the environment. The result is pure, clean drinking water. The Reverse Osmosis membrane has a tight pore structure (less than 0.0001 micron or 500,000 times less than the diameter of a human hair) that effectively removes up to 99% of all contaminants and impurities such as total dissolved solids, chemicals, bacteria and viruses from drinking water. Anti-microbial filters used in Reverse Osmosis also help to remove unwanted odors, colors and tastes from water. Reverse Osmosis filtration technology is so effective that it is used by most leading water bottling plants.
4) Ultra Violet (UV) based water purification is another option for cleaning of your water. It has been used for some time now. This technology can also be referred as electronic boiling. Ultraviolet (UV) rays penetrate harmful pathogens in your water and destroy illness-causing microorganisms by attacking their genetic core (DNA). This is extremely efficient in eliminating their ability to reproduce. Disinfecting your water with Ultraviolet light is exceptionably simple, effective and environmentally safe. UV systems destroy harmful microorganisms without adding chemicals or changing your waters taste or odor. UV water purification is usually used with other forms of filtration such as reverse osmosis systems or carbon block filters.
5) Gravity Based ultra filtration: – This innovative technology by Kent water purifiers has a specially designed UF membrane that works under the force of gravity and at atmospheric pressure. This UF membrane has a pore size of 0.1 microns which is small enough to filter out bacteria as well as harmful micro-organisms like cysts. It is used in combination with fine Nylon filter which removes dust and sand as well as Carbon filter that is coated with nano-silver. This nano-silver coated carbon filter absorbs many organic impurities and dissolved gases in water. The nano silver coating is anti-microbial by nature and ensures that the carbon does not become a breeding ground for micro-organisms.
Kent water purifiers also use a combination of these techniques i.e. RO + UV/UF in addition of the TDS control which leaves no chance for impurities to pass through. No wonder that with such innovative mindsets Kent water Purifiers have worked their way to the top.
About the Author: Neha is an expert who writes on the topics related to water and air purifiers. She disseminates her technological knowledge via write-ups for popular brands. She not only knows the technicalities & the science behind the purifiers but also holds an experience in the same. More details can be seen on
kent.co.in
Source:
isnare.com
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