ULTRAVIOLET DISINFECTION TECHNOLOGY
Ultraviolet (UV) disinfection technology has been the star performer in water and air treatment over the past two decades, due in part to its ability to provide treatment without the use of harmful chemicals.
UV represents wavelengths that fall between visible light and x-ray on the electAromagnetic spectrum. The UV range can be further divided into UV-A, UV-B, UV-C, and Vacuum-UV. The UV-C portion represents wavelengths from 200 nm - 280 nm, the wavelength used in our LED disinfection products.
UV-C photons penetrate cells and damage the nucleic acid, rendering them incapable of reproduction, or microbiologically inactive. This process occurs in nature; the sun emits UV rays that perform this way.
At AquiSense, we use Light Emitting Diodes (LEDs) to generate high levels of UV-C photons. The rays are directed at viruses, bacteria and other pathogens within water and air, or on surfaces to render those pathogens harmless in seconds.
UV-C LED Technology - The Next Revolution
In much the same way that LEDs have revolutionised the display and lighting industries, UV-C LED technology is set to provide new, improved, and expanded solutions in both air and water treatment. Dual barrier, post-filtration protection is now available where mercury-based systems could not previously have been conceivably used.
Attribute Conventional Mercury Lamp UV-C LED Product Implication
Mercury Content
Life Time
On/Off Cycles
Warm-Up Time
Operating Surface Temp.
Architecture
Durability
Wavelength
Power Supply
20 - 200 mg
5,000 - 15,000 hours
Max. 4 per day
Up to 15 minutes
100 - 600° C
Cylindrical tube
Fragile glass tube
Polychromatic (200 - 300nm)
110 - 240V AC
None
10,000 hours
Unlimited
Instantaneous
Same as process water
Point source
Rugged semiconductor
Selectable (250 - 300nm)
6 - 30V DC
Safe disposal - no special handling
Flexible operation
Intermittent- flow friendly
Extended replacement intervals
Zero-flow friendly does not promote fouling
Versatile implementation
Versatile operation
Now wasted energy & targeted performance
Batter/Solar option
UVC-LED Basics
An LED produces a selected wavelength from a small amount electricity. Depending on the composition of the LED it can produce anywhere from infrared, visible, and now UV-C wavelengths.
The side view of the LED shows that as power passes through the LED layers,
it activates the desired wavelength.
The LED is then packaged to allow for electrical connection, thermal management,
and physical protection. This helps maintain efficiency for the LED output and lamp life.
Back of lamp module with
LEDs integrated
Front of replaceable module with thermal management options
These LEDs can then be integrated into various systems to treat water, air, and surfaces.
These systems also work with the LED packaging to disperse heat and improve
efficiency of the disinfection process.