Planar UV light source for the disinfection of water

UV light source.
UV light source.

Increasing population density promotes the spread of pathogens. Disinfection with UV light has established itself as a reliable and environmentally friendly process. However, the light sources currently available are tubular mercury vapour lamps and therefore emit linear radiation in a very limited wavelength range. However, different wavelengths are required for the damage of many microorganisms.

In cooperation with a European industrial partner, we have developed a novel high-power UV light source in which the UV light is emitted from a plasma that is excited by microwaves.

This offers the following advantages:

  • Reliable and economical disinfection of high volume flows
  • Reduced fouling and reduced cleaning effort due to homogeneous light output over the entire surface
  • No wearing electrodes
  • Easy maintenance, as the components are outside the wetted part of the apparatus
  • Free constructive design of the shape of the light body

Project information

Project titel

Planar UV light source for the disinfection of water

 

Coordinator

  • Fraunhofer IGB

 

Cooperation partners

  • Sico Technology GmbH, Bad Bleiberg (Austria)