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How do UV germicidal lamps work?
UV germicidal lamps are modern devices that use ultraviolet radiation for effective water disinfection. They enable the removal of bacteria and viruses without the use of chemicals, making them an ideal solution for various applications, from households to industrial use. In this article, we will present different types of these lamps, their operation, and the benefits of using them.
Last updated: August 26, 2025
In this article, you will learn…
- What is a UV germicidal lamp – what is it and how does it work?
- What are the types of UV germicidal lamps and their efficiency?
- What are the benefits of using germicidal lamps?UV germicidal lamp – what is it and how does it work? UV germicidal lamps use ultraviolet radiation for complete water disinfection. For this reason, they are very often installed in households, hotels, swimming pools, or food service establishments. They make it possible to eliminate from the waterof bacteria and viruses without the use of chemicals, as well as effectively protecting it from the development of harmful microorganisms. Additionally, it is worth noting that disinfection using UV lamps does not alter the taste and smell of the liquid.
Types of UV germicidal lamps and their efficiency
There are various types of UV lamps available on the market for water disinfection. Their classificationis related to the pressure of the vapor inside the bulbs (fluorescent lamps), which affects the range of ultraviolet radiation emission.
It is worth remembering: UV lamps are effective in eliminating many types of pathogens, making them a versatile solution for disinfection.
The first group includes low-pressure UV lamps, whose radiation is almost entirely emitted inthe 254 nm wavelength and has a bactericidal effect. For this reason, this type of equipment is considered the most efficient. The second type of disinfection lamps are products that use medium-pressure lamps (arc lamps). In their case, the radiation covers the entire UV spectrum, which means it is less effective. Furthermore, to achieve full efficiency, a low-pressure arc lamp requires about 65 degrees Celsius, while a medium-pressure lamp reaches full effectiveness only ataround 900 degrees!
Benefits of using UV germicidal lamps
The use of UV germicidal lamps offers many benefits. First and foremost, they are environmentally friendly, as they do not require the use of chemicals for water disinfection, which minimizes the negative impact on the environment. Additionally, UV lamps are extremely effective in eliminating microorganisms,what makes them an ideal solution in places where water quality is crucial. It is also worth noting that UV disinfection is quick and does not require a lengthy process, which is important in industrial applications.
Nowadays, due to the increasing threats associated with water pollution, UV germicidal lamps are becoming more and more popular. Their versatility and effectiveness make them eagerlychosen by both individual users and businesses.
It is also worth adding that thanks to modern technologies, UV lamps are becoming increasingly efficient and available in various sizes, allowing for their use in different conditions and needs.
It is important to remember: Choosing the right type of UV lamp is crucial for the effectiveness of disinfection.
Author: Maciej Waliduda - specialist at MojaWoda.com
Frequently Asked Questions (FAQ)
What are the main applications of UV germicidal lamps?
UV germicidal lamps are used in homes, hotels, swimming pools, and food service establishments.
Does UV disinfection affect taste?water?
No, UV disinfection does not change the taste or smell of water.
What microorganisms can be removed using UV lamps?
UV lamps effectively eliminate bacteria, viruses, and some types of fungi.
How long does the UV disinfection process take?
The UV disinfection process is quick and usually takes a few seconds.
Do lampsAre UVs safe for humans?
Yes, however, direct contact with UV radiation should be avoided.
What are the costs of purchasing a UV lamp?
Costs can vary depending on the model and manufacturer, but there are various options available in different price ranges.
Author: MaciejWaliduda — a specialist in water treatment technology, with experience in designing filtration and disinfection systems.
