Ultraviolet light kills micro-organisms

Ultraviolet sterilisation works by dissociating the DNA structure of living cells thus preventing their multiplication. To destroy molecular chains requires a UV dose dependent on the organism type and at the germicidal wavelength of 253.7 nm. UV light between 200 and 280 nm is called shortwave UV light, or more commonly UVC, and has germicidal properties.
The UV disinfection unit comprises an enclosed chamber with an inner sleeve of high purity quartz, which contains one or more shortwave ultraviolet lamp/s. Water passes through the chamber and is subjected to the UVC which shines through the quartz sleeve. As the genetic structure of bacteria or viruses in the water are exposed to the UVC it will be destroyed.

Ultraviolet disinfection offers several benefits

It is economical - Ultraviolet disinfection uses significantly lower capital, operating and maintenance costs than other disinfection methods.
UV does not create toxic substances as do traditional chlorine or newer ozone treatments, nor does it alter the taste or physico-chemical properties of the water.
Ultraviolet Disinfection is a safe and reliable method as nothing is added to the water and it is impossible to overdose UV.
Ultraviolet disinfection is highly effective against viruses unlike most chemicals. No organisms known are immune to UVC light, though doses vary.

• Low-pressure lamps are most efficient at converting electrical energy into disinfection wavelengths, as the output is centred at 253,7 nm and they offer the longest lamp life (minimum 8000 hours). Low-pressure lamps also mean lower temperatures than other UV lamps and they do not accelerate internal fouling of optical surfaces.
• Multi-lamp units arranged in compact single chambers, offers better light distribution and greater reliability (should a lamp fail, remaining lamps continue to provide UV protection – no need for duty/standby units).
• Automatic self-cleaning systems that allow UV to be used in ‘dirty’ waters. Iron- and peatloaded supplies, sewage and trade effluents can all be successfully UV treated with minimal maintenance.
• Over the years we have developed an in-depth understanding for a vast field of applications and problems, this diverse expertise resulting in highly Creative and Customised Solutions.
• A detailed Customer Questionnaire is sent to every customer and all necessary parameters are considered before designing and producing the UV equipment.