Are you finding it difficult to decide which type of water purifier will best suit your home? Read on to know different types of water purification methods and how effective they are.
By Leena Ghosh
Water pollution in India is a serious problem and a growing concern for Indians. Today, many households invest in water purifiers, so that they have access to clean drinking water at home. But, deciding on the right water purifier for your home is not an easy task. One has to choose from various types of water purifiers available in the market that boast of different types of water treatments. You also have to consider different types of water purification methods and the types of water filters used in the water purifiers.
If you are struggling to decide on the best water purifier for your home, we give you all the details you’ll need to come to a decision.
How it works: Water purification through reverse osmosis (RO) is one of the most preferred systems of water treatment at home. In this process, the water is pushed through an RO membrane (RO water filter), which is a semi-permeable membrane. Through this method contaminants like sodium, chlorine, urea, lead, copper, chromium, selenium, pesticides and fluoride also get filtered out. The best RO purifier also helps treat bacteria and virus to a certain degree. Many RO water purifiers also have a Post Filter or a Carbon Filter that removes any remaining odour or taste from the water.
Advantages of RO water purifiers
Disadvantages of RO water purifiers
How it works: Ultraviolet (UV) water purifiers have a UV light source that is placed in front of the water chamber. As the water passes through the chamber it is treated by the UV rays that kill harmful pathogens present in the water. Many companies combine both water purification technologies to treat water and recommend RO UV water purifiers.
Advantages of UV water purifiers
Disadvantages of UV water purifiers
How it works: Gravity-based water purifiers use activated carbon instead of electricity to treat water. The activated carbons present in the fibre mesh absorb contaminants in the water, and the water is filtered with the help of gravity while it flows from a higher point to a lower one. Most of these gravity water purifiers come with UF technology. Treatment through UF technology includes pushing water through the UF membrane which has pores of 0.1 microns. These microns filter out most pathogens and sediments present in the water. Most UF water purifiers come with sediment filters and activated carbon filters.
Advantages of UF water purifiers
Disadvantages of UF water purifiers
How it works: Alkaline water purifier, also known as ionised water filter, changes the chemical composition of water and the water is filtered into two groups: alkaline and acidic water.
Advantages of alkaline water purifiers
Disadvantages of alkaline water purifiers
Also read: 4 Ways To Encourage Children To Drink Water
How it works: Activated carbon water filter removes chlorine and other harmful chemicals from the water and improves the taste of water. It also removes odour from water. While there are several varieties of high-tech activated carbon filters, there are two main activation methods - steam activation and chemical activation. RO water purifiers often come with activated carbon water filters installed in them.
Advantages of activated carbon water purifiers
Disadvantages of activated carbon water purifiers
How it works: Ceramic water purifiers filter the water as it passes through the pores of the water cartridge surface. Because of this, contaminants like sediments and cysts get removed from the water. Because of the small size of the pore in these water filters, even certain types of bacteria get filtered out.
Advantages of ceramic filters
Disadvantages of ceramic filters
The following are some of the best water purifiers in India:
1. Kent Grand 8-Litre Wall Mountable RO+UV+UF+TDS Water Purifier
2. Eureka Forbes Aquaguard Enhance RO + UV + UF + TDS Regulator water Purifier
3. Havells Max RO+UV 8 Litres Water Purifier
4. Livpure Glo 7L RO+UV+Mineralizer Water Purifier
5. Kent Pearl 8-Litre Mineral RO+UV+UF Water Purifier
6. HUL Pureit 5 Litre Advanced RO+MF Water Purifier
7. Blue Star Majesto 8-Liter RO + UV Water Purifier
The type of water purifier you choose also depends on your place of residence. In some areas, the water is harder and contains more chemicals. Depending on your budget and the quality of water you get at home, choose the water purifier that’ll suit you and your family’s needs.
About the author:
Written by Leena Ghosh and published on 21 August 2019
The author is a journalist, writer, editor and the mother of a spirited young girl. In between juggling the roles of being a full-time cheerleader for her daughter, a thorough professional and a part time chef, she dreams of finishing the first page of her unwritten book.
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