How an Ultra Violet Water Purifier Works

There are many options available today for water treatment. Indeed, you should do your homework before purchasing a water purification system. All systems have their advantages and drawbacks. Because of this, you may want to take your time and examine a number of variables before making your decision. The water purifier will be the focus of this article. Learn about the system and how it can help you.

What is an ultraviolet water purifier?

You need to know what an ultrawide system is first. You use a chemical-free water purification method when using the UV water purifier. This will help to eliminate impurities from your faucet’s water. Decontamination of water by electromagnetic radiation can help remove many sorts of chemicals, bacteria, and mineral materials.

A germicidal vapor produces ultraviolet light. The lamp’s glass part creates an optical illusion of transparency. Ultraviolet light travels through this lamp and kills a variety of bacteria and germs.

Ultraviolet light is a powerful tool, but it cannot remove dissolved particles, organic or inorganic. Well, UV purifiers can be of general assistance when it comes to well and tap water purification.

In addition, it is just as effective as any other water filtration system on the market. A decent UV water purifier will save money and time if you seek a quick and energy-efficient one.

An ultraviolet (UV) water purifier typically includes these parts:

Reactor chamber:

This component holds the quartz sleeve and UV lamp in place. It also controls the flow of water during the purification process.

Quartz sleeve:

In order to keep the UV light from coming into direct contact with the water, it’s enclosed in a long quartz glass tube.

Controller unit:

By using this component, you can add additional alarms to let you know when it’s time for a new ultraviolet bulb or if the system fails.

Ultraviolet lamp

The most important part of the ultraviolet water filter is the UV lamp. It emits the UC-C radiation that kills germs.

What is it that UV light is capable of removing?

How an Ultra Violet Water Purifier Works

Most bacteria can be removed from water once treated with a UV water purifier. In addition to destroying harmful bacteria, it destroys other dangerous pathogens in water, like flu, gastroenteritis, typhoid, hepatitis, cholera, etc. Ultraviolet systems can destroy all dangerous microorganisms. These include fungi, viruses, bacteria, and protozoans like Salmonella, Giardia, E. coli, and Cryptosporidium. These systems can kill 99.99 percent of them. For example, the hepatitis virus is resistant to chlorine and only needs UV treatment to eliminate the virus.

Some water contaminants, like heavy metals (e.g., iron, mercury, and lead), VOCs, and chlorine, are not easily eliminated by UV light. In addition, ultraviolet disinfection doesn’t eliminate the smell and nasty taste of water.

Ultra Violet Water Purifiers: What to Consider Before You Buy One

Even if UV light is efficient against all bacteria, there’s no way to know that it will destroy them. However, if the UV system is properly maintained and specific conditions are met, a decrease of 99.99 percent is achievable.

Water quality

Some pollutants scatter or absorb ultraviolet light. This reduces the quantity of UV radiation that reaches microbes by limiting the transmission of UV rays through the water.

Some of the most common pollutants found in surface water include humic and fulvic acid, manganese, iron, and a variety of other elements. This means that UV disinfection is most successful with already filtered water to get rid of these types of pollutants.

Suspended particles, dirt, and other floating debris may shield microorganisms from sunlight. Water hardness should be less than 7 grains per gallon, and the amount of total dissolved solids (TDS) should be less than 0.03 ppm.

Flow rate

It’s not uncommon for UV water purifiers to have a maximum and/or minimum flow rate capacity. It’s possible that water with a high flow rate will not get enough UV light exposure.

Overheating of the ultraviolet lamp may occur as a result of water with a low flow rate. There should be no flow rate that is too low or too high. Constant flow recirculation systems are also ideal for UV units.

GPM (gallons per minute) measures UV water purifiers’ flow rate. Water can be efficiently cleaned at this flow rate while still being polluted. Purifying water at 12GPM is standard for most whole-house UV units.

Bulb longevity and capacity

A UV lamp has limited capacity and can only filter so much water before replacing it.

It would be best to look for a reasonably priced bulb and long lifespan. For this reason, you will not have to replace it frequently and limit the cost of doing so.


The ballast must have a specific wattage in order to generate the needed UV-C, short-wave radiation. A 55-watt, 120-volt system is sufficient for most houses.


You’ll need to figure out how much money you will spend on a UV water purifier. Also, consider which features are most important to you before you buy one.

The cost can range from a few hundred to over a thousand dollars. But this will depend on the features, brand, and model.

When deciding whether or not to buy a UV light, think about the cost of replacing the lamp as well as the cost of the light itself.

Portable UV units

You can use portable UV devices in conjunction with water filters, the most typical outdoor purification devices. These units can remove large amounts of bacteria and sediment, but not all microorganisms.

Listed below are the primary advantages of ultraviolet water purifiers:

It disinfects water with outstanding efficiency

UV water purifiers effectively disinfect water if the UVC light source and penetration are powerful enough. Water can be disinfected in a single cycle, allowing greater throughput and treated volume.

No chemicals

Biocides or chlorine aren’t necessary for UV disinfection. As a result, you can use it in places without the need to use chemicals, such as fish farms and breweries. Another benefit of not using chemicals is that you can work in a safer environment and spend less money on new supplies.

The majority of water filters contain moving pieces within them. Because of the wear and tear on moving parts, it is necessary to perform more frequent maintenance. Moving parts are absent from UV water purifiers. A replacement UV bulb makes them self-contained systems.

Flexible UV intensity

You don’t necessarily need a larger UV water purifier to improve the quality of your drinking water. Obviously, this isn’t correct. If you don’t have enough UV intensity, you won’t be able to get the right disinfection dose. The flow rate depends on the system size.

Simple to maintain

A UV water purifier is significantly easier to maintain than other types of water filters. Other models necessitate frequent maintenance and filter replacement every few months.

You’ll only have to clean the lamp every couple of months and replace it once a year.

Compact models are available for the most constrained areas

Compact and non-intrusive, UV technology is a great choice for a variety of applications. Retrofitting an existing treatment system is frequently possible. You can design your system to be as small as possible to fit on a wall or as large as possible to handle more than 600 m3/hr.

It gets rid of 99.9% of microbes

If the system is properly sized, UV water purifiers can eliminate 99.9% of water microbes, including harmful bacteria and viruses. COVID-19 is an example of a virus that may be effectively destroyed by UVC radiation.

It doesn’t affect the water’s taste and color

This treatment doesn’t affect the water’s smell, taste, pH, or color. Unlike chemical treatment techniques, it does not add anything. The technology can treat portable water in a single or multistage procedure.


It’s better for the environment because UV water purifiers don’t add any disinfection toxins or components to the water during cleaning. This makes them better for the environment than other water purification methods, such as adding chlorine.

Eliminates a wide range of organic pollutants.

As well as destroying microbes, viruses, and bacteria, UV purification can also remove chlorine and ozone from water. To make ultra-pure water (UPW), it can also assist in the removal of TOC and urea from the water supply.


Microbes that threaten human health can be inactivated by exposure to ultraviolet radiation. Their DNA is rendered useless almost immediately by UV radiation. UV purification should always require An additional filtering system, as it does not remove sediment. You may rest assured that waterborne infections will not be a problem if you use UV light to filter water for your home or outdoor use.