Advantages And Disadvantages Of UV Water Purifiers

Even though access to clean drinking water should be a fundamental human right available to all, there are many challenges that prevent this from being a reality. This is why having a good household purification system is becoming increasingly important and necessary. This process if used by some of the best water purifier brands in India and it is one of the most common water purification systems observed in most households is UV Purifiers that use Ultraviolet radiation to get rid of unhygienic and harmful substances.

Still not convinced? This article elaborates on the process of UV Purification and its advantages and why you should get it installed as soon as possible in your house! This way, you can ensure that the tap water you drink every day is hygienic and free from contaminants, bacteria, and other microorganisms that can cause health concerns in the long run.

What Is UV Purification?

Ultraviolet water purification is currently one of the most preferred methods for disinfecting water, which ensures water is safe for consumption and improves its odor and taste. Drinking water that is not purified can result in organisms and bacteria lingering in your digestive tract that replicate. To prevent this, UV water purifiers use ultraviolet rays. The ultraviolet rays attack the genetic core of harmful bacteria, preventing them from reproducing and making the water fit for consumption. Using ultraviolet rays is extremely effective and environmentally safe. It comes with multiple advantages that can be beneficial to your health in the long run. UV purifiers do not use any added chemicals or microorganisms and still manage to destroy 99.9% of harmful bacteria. UV water purification technology is often used in addition to other filtration techniques, including reverse osmosis systems or carbon block filters. If you don’t the difference between these process, look at our article “Difference Between RO, UV And UF Water Purifiers“.

How Does A UV Purifier Work?

When pollution is at an all-time high in today’s world, getting access to clean, purified water is a task. However, homeowners can now utilize Ultraviolet technology to purify and disinfect water with the recent advances in technology. Ultraviolet water purification is one of the most effective techniques for getting rid of bacteria and contaminants like copper or arsenic from the water. The Ultraviolet water purifier ensures that water-borne diseases are eliminated by exposing the water to UV rays. It contains a UV light source positioned so that when water passes through it, it is exposed to Ultraviolet Radiation. 

This UV Radiation functions at a 254-m wavelength which penetrates through dangerous pathogens, illness-causing microorganisms, and contaminants present in the water. These ultraviolet rays attack their genetic core- DNA or RNA. This eliminates their capability to multiply by harming their reproductive ability. Bacteria, viruses, parasites, fungi, and any other microorganisms present in the water lose their ability to replicate and are no longer harmful to the body.

Benefits Of UV Water Purifier

Benefits Of UV Water Purifier

1. Cost-Effective

Investing in a water purification system can be cost-effective, especially in the long run. If you turn to bottled water as your source of clean water, it can prove to be expensive. Constantly purchasing bottled water can mount up to a costly bill and isn’t a practical option to use in the long run. An ultraviolet water purifier, on the other hand, is a permanent one-time investment. A UV water purifier uses about 60 watts of power, equivalent to the amount used by a standard light bulb. Thus proving that ultimately a water purifier is a more affordable and reasonable option.

Also Read: Best Water Purifiers Under 10000 In India

2. Effectively Kills Bacteria And Viruses

It is a proven fact that water that has not been purified contains high levels of contaminants like viruses, bacteria, and microorganisms harmful to the body in more ways than one. The purifier uses ultraviolet rays to prevent these dangerous pathogens from reproducing, making the water safer to drink. The radiation emitted by UV water purifiers destroys 99.99% of the bacteria, microorganisms, viruses, and cysts that may be present in the water. Thus, ultraviolet rays are an efficient and reliable solution to obtain water that is safe from contaminants and suitable for consumption.

3. Uses No Chemicals

Often in the past, chemical disinfectants like chlorine have been regarded as a medium for purifying water. However, it is not advised to use these chemicals to disinfect water because they can create toxic by-products that can negatively impact one’s health. Ultraviolet water purifiers are a recommended alternative because they neutralize the contaminants without adding any harmful chemicals. The Ultraviolet rays directly penetrate the genetic core of the pathogens and ensure that their impact on one’s health is eliminated. This way, the microorganisms are destroyed without chemicals affecting their quality.

4. Zero Water Wastage

The most significant advantage that an Ultraviolet water purifier has over an RO purifier is the fact that it wastes no water. When considering an RO purifier, the RO purifier wastes at least 3 to 4 liters of wastewater for every liter of water produced. The ratio of wastewater to water consumed is 25:75. This indicated that if you purify 4 liters of water through an RO system, it will produce only 1 liter of water suitable for consumption. In comparison, there is no water wastage in a UV water purifier since it uses ultraviolet rays to eliminate contaminants. It is the most eco-friendly option as it minimizes water wastage.

5. Negligible Maintenance Required

Ultraviolet water purifiers come with a UV bulb. The UV bulb is three main components of ultraviolet purification as it emits ultraviolet rays. When it comes to maintaining an ultraviolet water purifier, the only requirement is that you need to change the bulb annually or whenever it stops functioning properly. The ultraviolet bulb is not expensive, so the maintenance of a UV water purifier is inexpensive. Compared to RO and other UF water purifiers that have high maintenance costs and require effort, the UV water purifier is affordable and easy to maintain.

6. Doesn’t Alter Taste Or Odor Of Water

Ultraviolet rays do not use any chemicals, and so the odor and taste of water are maintained. Ultraviolet rays eliminate any bacteria and viruses, therefore significantly improving the taste! Any unpleasant odor or taste caused by the impurities and contaminants gets eliminated, and purifying water ensures a fresher feel. It only makes sure that the water is free from all uncomfortable tastes and smells and enhances its natural taste.

7. No Damage To Pipes

Another extremely positive advantage of UV water purification is the fact that this system doesn’t cause any damage to your pipes. When one uses chemical disinfectants like chlorine, iodine, and bromine to purify water, they can affect the water’s PH, which can damage your water pipes, especially if you have copper piping. In fact, chlorine is known to accelerate the corrosive action of both metal and plastic fixtures. If you use these methods to purify water, your pipes may need replacing in the long run! On the other hand, UV water purification does not use any chemicals and only utilizes ultraviolet rays to get rid of contaminants.

UV Water Purifier Disadvantages

UV Water Purifier Disadvantages

1. Can’t Filter Out Solid Impurities

Unlike RO water purifiers, Ultraviolet water purifiers don’t come with a dense, semi-permeable member, and so they cannot remove solid compounds including dust, dirt, heavy salt impurities like chlorine, and heavy metals like arsenic, lead, and antimony. They cannot eliminate volatile organic compounds and other suspended impurities as well. This means that an ultraviolet water purifier cannot remove the total dissolved solids (TDS). And so, they cannot convert hard water into soft water.

2. Needs Constant Power To Work

UV water purifiers require constant electricity to function. Since the UV rays are emitted from a bulb that consumes 40 to 60 watts of energy, the purifier needs to be starched to a power source. Unlike UF water purifiers, if there is no electricity, an ultraviolet water purifier won’t function. This makes it an unsuitable option for those who stay at home or localities where the electricity supply is unreliable. Moreover, if the power supply is absent for some time, there will no longer be a storage tank to store water.

3. No Water Storage Tank

One of the drawbacks of a UV purifier is that most of them do not come with the option of installing a water storage tank. Usually, you need to fill the water into an external water bottle or container since no other option is available.

4. Heats The Water

The ultraviolet rays emitted from the UV water purifier act as a heat source. When the tap is off, and there is no flowing water, the water stored in the UV reactor slowly heats up until it reaches a state of thermal equilibrium. This means that the heat radiating from the water is at the same level as the heat being dissipated by the purifier bulb. As long as the water sits in contact with the heat source, in this case, the bulb, it will continue to avoid heat and remain warm. As a result, often, when you turn on the tap, the water flowing out from the purifier is warm. 

Verdict | Is UV Water Good For Health?

As mentioned above, a UV water purifier comes with its own set of pros and cons. However, one of the biggest drawbacks of using UV water purifiers is that they cannot eliminate solid impurities, which can have harmful side effects. This is why UV water purifiers are NOT recommended as a stand-alone treatment process, and the best way to ensure maximum safety and hygiene is to ensure that other water treatment processes accompany it.

So what is the best option for consumers? Even a reverse osmosis water filter has its downsides. This is why to provide benefits of both RO and UV technologies; the market has introduced RO UV water purifiers. These purifiers have the best of both- with an RO technology membrane and a UV light source, making them an ideal choice for everyone irrespective of the water source!

With the help of these water purifiers, you can be at ease and not worry about the quality of the water you consume-because it will undoubtedly be hygienic and healthy!

Akanksha is a fond food critic and a wellness enthusiast, aiming to always look on the brighter side of life. Aligning with her interests, she has pursued a masters in hospitality and hotel management. She believes that the effects of ageing can be significantly controlled if we monitor the quality of our food accurately. Through this blog, it’s her aim to share what she’s learned through the years across these domains. Follow her on Facebook