Ultraviolet Education

Radiant Industrial Solutions is committed to it’s educational efforts designed to increase the public awareness of the biologic effects and benefits of ultraviolet light.

Ultraviolet FAQ

What is Ultraviolet?

Ultraviolet (UV) light is a form of light that is invisible to the human eye. It occupies the portion of the electromagnetic spectrum between X-rays and visible light. The sun emits ultraviolet light; however, much of it is absorbed by the earth’s ozone layer.

uvc-spectrum-of-light-chart (1)

A unique characteristic of UV light is that a specific range of its wavelengths, those between 200 and 300 nanometers (billionths of a meter), are categorized as germicidal – meaning they are capable of inactivating microorganisms, such as bacteria, viruses and protozoa. This capability has allowed widespread adoption of UV light as an environmentally friendly, chemical-free, and highly effective way to disinfect and safeguard water against harmful microorganisms.

How does Ultraviolet sterilization work?

Using a variety of methods, high-energy ultraviolet light in the area of the spectrum known as UV-C is produced. This UV-C energy passes through the cell walls of bacteria, viruses and bacterial spores. When bacteria, viruses and protozoa are exposed to the germicidal wavelengths of UV light, they are rendered incapable of reproducing and infecting. UV light has demonstrated efficacy against pathogenic organisms, including those responsible for cholera, polio, typhoid, hepatitis and other bacterial, viral and parasitic diseases.


The high energy associated with short wavelength UV energy, primarily at 254 nm, is absorbed by cellular RNA and DNA. Once the UV-C energy is inside the microorganism, it is absorbed by the DNA, RNA and proteins. All organisms rely on their cellular DNA as a blueprint to direct their critical physiological activities, including reproduction. When UV-C light strikes the DNA nucleotide known as “thymine,” its carbon- double bond breaks, ruining the nucleotide’s ability to pair with adenine. This inability to pair with its complementary nucleotide makes it impossible for the DNA to properly replicate and reproduce, rendering the organism sterile. This destruction of thymine also interferes with the cell’s ability to translate that gene into critical, life-sustaining proteins.

Why do I need Ultraviolet?

UV sterilization has many advantages such as:

  • Environmentally friendly, no dangerous chemicals to handle or store, no problems of overdosing.
  • Universally accepted disinfection system for potable and non-potable water systems.
  • Low initial capital cost as well as reduced operating expenses when compared with similar technologies such as ozone, chlorine, etc.
  • Immediate treatment process, no need for holding tanks, long retention times, etc.
  • Extremely economical, hundreds of gallons may be treated for each penny of operating cost.
  • Low power consumption.
  • No chemicals added to the water supply – no by-products (i.e. chlorine + organics = trihalomethanes).
  • Safe to use.
  • No removal of beneficial minerals.
  • No change in taste, odor, pH or conductivity nor the general chemistry of the water.
  • Automatic operation without special attention or measurement, operator friendly.
  • Simplicity and ease of maintenance, TWT Deposit Control System prevents scale formation of quartz sleeve, annual lamp replacement, no moving parts to wear out.
  • No handling of toxic chemicals, no need for specialized storage requirements, no OHSA requirements.
  • Easy installation, only two water connections and a power connection.
  • More effective against viruses than chlorine.
  • Compatible with all other water processes (i.e., RO, filtration, ion exchange, etc.).

UV Safety

Is Ultraviolet harmful to people?

Prolonged, direct exposure to UV light is harmful to all living organisms, including people. However, Radiant UV systems are designed with safety in mind. There is minimum exposure to people. This provides for safe operations and maintenance.

UV Light protection

The key to effectively reducing UV exposure is to properly shield the source and to require that users wear the appropriate personal protection. Personal protection that is appropriate includes welder’s masks, goggles and face shields. Radiant can provide information on the appropriate protection for the source in use.

UV Overexposure Symptoms:

Sunburn: This is a reddening of the skin, with blistering and peeling in severe cases. Of the three UV bands, UV-B is most effective in causing sunburn. To protect itself against UV radiation, the skin “tans”. Prolonged exposure to UV radiation causes a thickening of the skin’s outer layer. Since people wiht lighter skin, hair and eyes have less pigment, they are more sensitive to UV exposure. Damage to the skin accumulates over the day. Given time, sunburned skin repairs itself.

Welder’s flash (overexposure to the eyes): This is a painful irritation of the cornea and the conjunctiva. There is a feeling of “sand in the eye” and sensitivity to light. Other symptoms include a burning and painful sensation in the eye, the sensation of a foreign object in the eye and tearing. Symptoms appear from six to 24 hours after exposure and usually disappear within the following 48 hours. No permanent damage to the eye results unless a severe exposure has occurred. If the symptoms persist over 48 hours the individual should be examined by a physician.

First Aid

Skin Burns: immediate application of cold (cold water, ice, cold clean cloths) to the affected area will reduce the severity and relieve the pain associated with first and second degree burns.

Eyes: place sterile dressings over the the affected person’s eyes and the individual should be examined by a physician if the symptoms persist over 48 hours.

UV Lamps

What are the characteristics of a UV lamp?

Call Radiant at 713-972-0196 or email us at sales@radiantuv.com

What is UV Dose?

Call Radiant at 713-972-0196 or email us at sales@radiantuv.com

How do I know when it is time to replace the germicidal UV lamp?

Call Radiant at 713-972-0196 or email us at sales@radiantuv.com

What type of custom engineering solutions can Radiant provide?

Within the Radiant Industrial offices, laboratory, and warehouse we harness the technology to
adapt ultraviolet, filtration, and ozone technology to applications which range from:

  • Extreme weather applications: sub-zero, over 200⁰F, Mach5, hurricane force 5 winds
  • Critical control conditions: invasive patient devices, explosion control, clean room control, zero glass environment, air quality, water quality, final control measures
  • Fluid clean control: blood, fructose, sucrose, water, municipal consumption, municipal reuse, municipal waste, human consumption product
  • Product control: meat, poultry, fish, RTE (ready to eat) foods, petri-dish, medical equipment, medical devices, critical touch product, packaging, patient touch, OR, ICU
  • Air quality: VOC (volatile organic compounds), confined spaces, ozone disinfection, ozone removal, chemical control, outgas, cross contamination
  • General disinfection: Air quality control, surface disinfection control, water disinfection control
  • General disinfection: Air quality control, surface disinfection control, water disinfection control