UV Filtration_ An Overview
A UV water purifier uses germicidal ultraviolet radiation to treat microbiologically hazardous water. The UV wavelength scrambles the DNA of living organisms in water, preventing them from reproducing and causing illness. Bacteria can embed and reproduce in your digestive tract if you drink bacteria-infested water. By destroying the nucleic acids in bacteria, viruses, parasites, and fungi's DNA, ultraviolet radiation leaves them unable to proliferate.
How Does a UV Purifier Work?
A UV water purifier uses a germicidal ultraviolet wavelength to kill bacteria, viruses, and cysts (such as Cryptosporidium and Giardia). UV radiation at a wavelength of 254 nm breaks the DNA of harmful germs, preventing them from reproducing. Bacteria cannot spread disease through drinking water because of the ultraviolet light.The amount of energy (in mJ/cm2) delivered by a UV water purifier is referred to as UV dosage. The higher the dosage, the more energy is used to treat the contaminated water. This energy reaches a point where it is adequate to inactivate the majority of the microorganisms in water.
What is removed by UV disinfection?
UV disinfection kills bacteria, but it doesn't remove particles from water, add chemicals, or get rid of undesirable tastes and odors. UV disinfection treats water for:
1- Cryptosporidium
2- Giardia
3- Dysentery bacilli
4- Salmonella
5- Mycobacterium tuberculosis
6- Streptococcus
7- E. coli
8- Hepatitis B
9- Cholera
10- Algae
11- Fungi
12- Some viruses
What’s inside a UV Water Purifier?
The entire system is enclosed in a chamber in a UV water purifier. The UV lamp, which emits a germicidal wavelength of radiation (UV-C) to destroy live organisms, is housed in the glass quartz sleeve. The quartz glass sleeve is UV-transparent, allowing UV light to pass through the glass to disinfect the water. Because water and electricity don’t mix well, the UV lamp is protected by a quartz sleeve. One or two O-rings are required to seal the entire system.
Mercury vapor is used to power UV lamps. In the shape of little beads, mercury vapor is injected into a UV lamp. Beads may occasionally be seen rolling around in the bulb. These beads are mercury before it is evaporated and used as lamp fuel.
How Safe Is to Use UV Purifiers?
The use of ultraviolet light to purify water is completely safe. It doesn't utilize any dangerous chemicals or change the water's makeup. A UV sterilizer disinfects by emitting UV-C light. Humans, like microscopic living species, are vulnerable to UV-C light. You won't be exposed unless you touch or stare at the UV bulb when it's turned on.Although chlorine therapy is an alternative to UV, UV treatment is far safer. Water is treated with ultraviolet light to kill protozoa that chlorine treatment can't kill. Chemical disinfectants are far more difficult to maintain and use than a UV system. Chlorine water treatment necessitates the use of a retention tank as well as precise injections and solutions.
How Effective a UV Purifier Is?
UV sterilizes water in a short amount of time, 99.99 percent of biological organisms in water are deactivated by UV disinfection. They're made to run indefinitely to ensure that the water you use is always safe. The UV system purifies every drop of water that enters it.
Is UV Necessary for a Water Filter?
A water filter does not require UV purification, but a water filter is required before a UV system. UV systems work best when the water is clear, thus at least a five-micron pre-filter is required to prevent living organisms from hiding behind loose particles. A sediment filter ora water softener could be used as pre-filtration to remove dirt and debris from a well water source. The final thing water flows through on its route to the house is a UV purifier.
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