LIT is a leading manufacturer of ultraviolet disinfection equipment. For more than 15 years we have been involved in the design, development, production and installation of UV-systems and –projects. The capacities of our UV-systems range from a few cubic meters per hour up to unparalleled volumes of more than 1.000.000 m³ /day. We are among the top three manufacturers of UV-disinfection systems in the world.

Company details

Business Type:
Manufacturer
Industry Type:
Water and Wastewater - Water Treatment
Market Focus:
Globally (various continents)
Year Founded:
1991
Employees:
101-1000
Turnover:
10,000,000 - 100,000,000 €

This company also provides solutions for other industrial applications.
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LIT offers a complete range of certified UV disinfection equipment. Systems that can be used for potable, process, waste and re-use water, as well as for special applications like swimming pools and aquaculture. We offer both pressurized and open-channel versions.

Next to the production of UV-disinfection systems, LIT also produces UV-C lamps for commercial purposes. Both high-performance germicidal mercury low-pressure lamps and amalgam low-pressure high-output lamps are manufactured by LIT. The UV intensity depreciation of these germicidal lamps at the end of lifetime is less than 20%!!

Our renowned scientific base and extensive experience allow us to provide sophisticated and efficient solutions, tailor-made for any application.

Provide our customers with safe, reliable and good quality ultraviolet technology applications for water, air and surface disinfection in order to protect the environment and health of human beings. As a company we are committed to continuously invest in the development of our products and our people and establish long lasting relationships with our customers and suppliers.

Key activities of LIT UV are:

  • Research, development, production, and installation of ultraviolet water disinfection equipment;
  • Research, development and production of equipment for air and surface disinfection by ultraviolet (UV) radiation;
  • Research, development and production of germicidal ultraviolet lamps;
  • Research, development and application of ecological innovations in the field of potable water disinfection, wastewater treatment and environmental contaminant treatment by UV-advanced oxidation.

 

Main departments
  • LIT’s multiple-discipline mechanical production department is equipped with modern technologies and equipment for stainless steel processing, including mechanical and plasma jet cutting, milling and turning machines, argon welding and electromechanical surface finishing. This department manufactures both serial product lines as well as UV-systems to customers' specific requirements.

  • LIT Ultra Violet light sources manufacturing. Produces various types of germicidal low-pressure UV lamps in accordance with international quality standards. Latest lamp manufacturing technologies combined with high quality materials and components, guarantee the reliability of our products. Continuous research and development efforts allow us to improve our technologies and to manufacture sophisticated and very competitive products.

  • The LIT Research & Development Centre includes a laboratory for technological research in the field of water treatment, a bioassay testing laboratory, an experimental hydrodynamics test complex and a laboratory for light source technology.
  • A renowned Design and Engineering department is specializing in the development of equipment, the design of projects, supervision, assembly and start-up of UV systems, operator training for both serial, small and mid-scale UV installations and non-standard large-scale projects.
  • Our Marketing and Service department is providing and facilitating successful market entries for LIT products, while ensuring outstanding product and service support to our clients both before and after sales.

UV disinfection

Globally mankind now recognizes that it has to protect nature from industrial operations. Historically, nature usually managed to evolve and protect itself, however, humanity needs to step in and choose effective solutions to avoid pollution. One of such technologies is water disinfection by ultraviolet (UV) radiation; arguably it is the most reliable and environmentally friendly method of water disinfection. These days popularity for UV disinfection technology is growing rapidly throughout the world. For decades LIT Technology has been introducing and successfully applying this method.

UV radiation destroys the genetic structure of micro-organisms and inhibits their ability to replicate thus causing their death. In nature germicidal ultraviolet is a part of the sun's radiation; however, most germicidal radiation (UV-C) does not reach earth.

Modern technologies can be used to convert electrical power into germicidal ultraviolet in an efficient manner. One of these technologies is a mercury gas-discharge lamp that generates UV-C radiation, which can be used to inactivate micro-organisms by destroying DNA.

UV radiation, in particular UV-C, effectively kills airborne, surface and water living bacteria, viruses and cysts. Especially important is the fact that UV radiation destroys some types of viruses that are resistant to conventional chlorination. One of the characteristics of UV lamps is the ability to selectively radiate at 254 nm close to the optimum wavelength of 260 nm (see below) and not to emit radiation that generates ozone or other carcinogenic substances.

Germicidal ultraviolet does not change the chemical composition and flavour of water in contrast to reagent methods of disinfection (chlorination, ozonation). Resistivity of micro-organism to UV radiation strongly depends on its type. Most sensitive to UV radiation are viruses and bacteria in vegetative forms (bacillus, coccus), for example, well know micro-organisms such as Salmonella typhosa, Vibrio cholerae, Shigella dysenteriae, Hepatitis virus, Mycobacterium tuberculosis.

A modest UV dose is required to inactivate Lamblia cysts and Cryptosporidium oocysts, while a large UV dose is necessary to destroy spores. It is always possible to choose a UV dose that provides proper disinfection in any particular case, since there is no negative overdosing effect.

Inactivation efficiency of UV radiation is demonstrated by the so-called germicidal curve that shows relative quantity of destroyed micro-organisms versus wavelength of UV radiation. The germicidal effect of ultraviolet radiation is considerable in the 205-315 nanometre range of the spectrum, with the maximum disinfection efficiency achieved at 260 nm. The spectral distribution of radiation from mercury low-pressure germicidal lamps used in LIT UV systems is peaks at 254 nm, which is very close to the optimal disinfection wavelength. LIT UV units provide reliable disinfection over a wide range of water quality parameters due to the margin of UV dose. Ultraviolet radiation only takes about 3-5 seconds to kill most bacteria and viruses in treated water.

Attractive technical and economical characteristics of UV equipment manufactured by LIT created conditions for widespread use of UV systems in water treatment and distribution facilities of any capacity.

  • Municipal wastewater treatment plants
  • Reused wastewater applications
  • Industrial 'grey' water applications
  • Combined sewer overflow and storm water
  • Fish farms

  • Municipal and private drinking water supply
  • Domestic potable water applications
  • Spa’s and swimming pools
  • Fish farms
  • Food and beverage industries
  • Hospitals
  • Pharmaceutical industry
  • Electronic industry
  • Cosmetic industry

  • Municipal wastewater treatment plants
  • Wastewaters re-use applications
  • Industrial ' grey ' water applications
  • Combined sewer overflow and storm water
  • Fish farms