Ultraviolet (UV) Light Definition
Ultraviolet (UV) light invisible human eye, and it occupies the electromagnetic spectrum between X-rays and visible light.
The sun emits ultraviolet light; however, the earth’s ozone layer absorbs much of it. A unique feature of UV light is a specific range of its wavelengths, between 200 and 300 nanometers (one billionth of a meter).
And it classifies as germicidal it inactivate microorganisms such as bacteria, viruses, and protozoa.
This ability allows the widespread adoption of UV light as an environmentally friendly, chemical-free, and highly effective way to disinfect and protect water from harmful microorganisms.
Also You can find more helpful resources at TechiesGuardian
What are the Cost Benefits of Ultraviolet (UV) Light Disinfection?
- The operating costs of UV disinfection determined the annual replacement of lamps and electricity consumption.
- UV light eliminates or reduces the immediate safety hazard posed by chlorine gas without creating new long-term costs associated with the use of chemicals, transportation, and distribution.
- And UV disinfection, costs for leak response, administration, risk management, and emergency planning and operator training are minimized and eliminated.
- And municipalities do not pay premiums for the significant safety benefits of UV disinfection.
What are the Advantages of Disinfection for Safety?
- It is a chemical-free process that does not add anything to the water except UV light. And UV light does not require the transport, storage, or handling of toxic or corrosive chemicals.
- It also represents the safety of plant operators and the surrounding population. UV treatment does not generate carcinogenic by-products of disinfection that can negatively affect water quality.
- UV disinfection is highly effective in inactivating various microorganisms, including chlorine-resistant pathogens such as Cryptosporidium and Giardia.
How Ultraviolet Disinfection Works?
- Unlike chemical water disinfection methods, UV radiation provides rapid and efficient inactivation of microorganisms through a physical process.
- Also, bacteria, viruses, and protozoa are exposed to UV light’s germicidal wavelengths and become unable to reproduce and infect.
- UV light shows effectiveness against pathogenic microorganisms, such as those causing cholera, polio, typhoid fever, hepatitis, and other bacterial, viral, and parasitic diseases.
- Additionally, it uses UV light (alone or in conjunction with hydrogen peroxide) to destroy chemical contaminants such as pesticides, industrial solvents, and drugs through UV oxidation.
- And microorganisms inactivated UV light as a result of nucleic acid damage. Cellular DNA and RNA absorb the high energy associated with short wavelength UV energy, mainly at 254 nm.
- This absorption of UV energy forms new bonds between adjacent nucleotides creating double bonds or dimers.
- The dimerization of adjacent molecules, especially thymine, constitutes the most frequent photochemical damage.
- And the formation of numerous thymine dimers in the DNA of bacteria and viruses prevents replication and the ability to infect.
Also Read: What is Assistive Technology? – Definition, Benefits, Health, and More