UV systems

Ultraviolet (UV) light is a proven method for germicidal disinfection of water. At a wavelength of 254 nm in the UV-C range, it reliably destroys microorganisms by acting on organic substances such as DNA and amino acids without chemically altering the water. This effect is produced by low-pressure mercury lamps that are specially designed for the required UV-C wavelength.

Functionality and technical principles:

• UV light with a wavelength of 254 nm destroys the genetic information of bacteria, viruses and other germs
• Use of low-pressure mercury lamps to generate UV-C light
• Important parameters such as light transmission or the spectral absorption coefficient (SAC) at 254 nm are required for the design of the UV system
• Disinfection is carried out purely physically, without chemical additives

Advantages of UV disinfection:

• No change in the taste, smell or chemical composition of the water
• Environmentally friendly and free from by-products that can arise during chemical disinfection
• Particularly suitable for the food and beverage industry and sensitive areas of application
• Universally applicable in drinking water, service water, swimming pool and industrial systems

Regulatory requirements:

• Since 1 January 2006, UV systems used in the drinking water sector have been subject to mandatory certification.
• Systems must be tested and approved in accordance with applicable standards.
• Regular maintenance and inspection of UV lamps and sensors are essential to ensure disinfection performance.

Areas of application:

• Drinking water supply for households and municipalities
• Food and beverage industry
• Swimming pools and leisure facilities
• industrial processes with high hygiene requirements
  
  

Bottling in the beverage industry – UV disinfection is an important part of water treatment.

Photo: SongMin | adobe stock