How UV disinfection works ?

In 1877 scientists first observed strong sunlight disinfecting water. They noticed that sugar water kept in the shade went cloudy as microorganisms grew in it, whereas the sugar water kept in direct sunlight stayed totally clear. Being able to artificially create the correct wavelengths of UV light with lamps gives us the power to disinfect a variety of liquids as well as air and surfaces.

UV disinfection (also known as ultraviolet germicidal irradiation) is a chemical-free disinfection method that uses short-wavelength ultraviolet (UV-C) light to kill or inactivate microorganisms by disrupting their DNA, leaving them unable to perform vital cellular functions such as reproduction. At the 254nm wavelength UV light can penetrate the cell wall of a microorganism, permanently altering the DNA structure within seconds and leaving no chemical by-products as a result.

Precise and targeted ‘dosing’ is used to calculate the type of lamp needed for different applications and how long different liquids, air or surfaces need to be exposed to the UV light, in order for them to be safely disinfected.

Dosing takes into account the UV intensity being given out from the lamps, the UV transmittance (UVT) of the water, air or surface (if applicable) and the amount of time the substance being disinfected is exposed to the UV light.

Aquaculture Ultraviolet disinfection systems in hatcheries, fish farms and aquariums have enabled operators to farm or keep greater yields of healthier stock. Find out more Packaging & Processing The hygienic processing and packing of foodstuffs, pharmaceuticals and cosmetics is vital to ensure they reach consumers still meeting the high standard of quality required. Find out more Laboratories UV technology is used in pharmaceutical research and manufacturing sites for the production of ultrapure process water, as well as disinfecting air, surfaces and lab equipment. Find out more Marine UV disinfection is used in the marine industry to treat ballast water, and as part of advanced wastewater purification and potable drinking water systems. Find out more Waste Water UV disinfection of waste water is a chemical-free process that renders harmful microorganisms safe, and ensures safe water for residents, workers and flora and fauna that inhabit local water bodies. Find out more Drinking water UV disinfection is now tried, tested and trusted for the treatment of municipal and domestic drinking water around the world. Find out more Food & Beverages Food and drink producers are increasingly turning to germicidal lamps to ensure food, beverages and the areas they are produced in are all free of unwanted pathogens. Find out more Oil & gas On and off-shore oil and gas production requires the treatment of large amounts of water that is used for well-fracturing, cooling and reuse. Find out more Mining The UV disinfection of water used in mining processes ensures compliance with regulations and prevents the release of unsafe water Find out more Aquatics UV disinfection systems are an efficient and safe method of ensuring good water quality in all sizes of swimming pools and water parks. Find out more Horticulture UV disinfection is popular for treating water used in horticultural applications, as it introduces no chemicals or by-products which can stress plants and lower crop quality. Find out more Healthcare Germicidal lamps are used to disinfect patient rooms, equipment and air in hospitals, helping to fight hospital acquired infections. Find out more