WEDECO Spektrotherm® technology
The centrepieces of the WEDECO UV systems are particularly energy-efficient UV lamps. They have a long service life, operate continuously even at varying water temperatures and are far superior to conventional UV lamps thanks to their particularly high efficiency.
We at Xylem Water Solutions recognised the potential of UV disinfection and the associated lamp technology early on. To this very day we use a large proportion of our research resources in developing this constantly further. The core of our work, which started more than 30 years ago, is the continual improvement of the performance and economic efficiency of our UV technology. The result has been a high-performance low-pressure UV lamp, which sets benchmarks.
The ideal choice for water disinfection
WEDECO Spektrotherm® lamps emit UV light mainly in the spectral region of 254 Nm (nanometres). This UV light region is particularly effective for the disinfection of drinking water and waste water. The special characteristic of the WEDECO Spektrotherm® lamp is its special amalgam/indium doping. Thanks to this, a constantly high UV light yield is achieved with a substantially extended lamp service life at the same time. In addition, liquid mercury can be done without by using this technology inside the lamp.
Long-life WEDECO Spektrotherm® lamp with the highest energy efficiency
WEDECO Spektrotherm® lamp can no longer be beaten with regard to economic efficiency. The light yield in relation to the energy expenditure is over 40%!* Even modern energy-saving lamps or medium-pressure lamps frequently still used in water purification have only one efficiency of 12 - 15%. A higher light yield also means a lower heat generation at the same time. WEDECO Spektrotherm® lamps reach a temperature of just 100°C in operation. For comparison: Medium-pressure lamps reach temperatures of 600 - 800°C. Thanks to this, WEDECO Spektrotherm® lamps become less susceptible to varying water temperatures. Even surface formation on the quartz sleeves as well as lamp ageing is considerably lower than with alternative UV lamp technologies.
The effectiveness of the WEDECO Spektrotherm® lamps is increased thanks to the electronic ballasts with intelligent components which are specially fine-tuned to the lamps. They supply the lamps with the lowest possible energy depending on transmission and flow rate and ensure a reliable disinfection with optimal UV-radiation emission.
Advantages Overview
- Highly effective inactivation of bacteria, viruses and parasites
- Very high economic efficiency
- Long lamp service life
- No liquid mercury
- Low surface formation on the quartz sleeves
- Stable UV-C-performance at water temperatures from 0°C to 60°C
WEDECO Spektrotherm lamps originate from our own production in Germany and are used exclusively in WEDECO UV systems. You can see which systems these are here...
* Efficiency testing done under laboratory conditions.
Actual performances depends on operating conditions.
