Disinfection of seawater by means of UV radiation
From the Antarctic icebergs to the ground of the oceans: The scientists at the Alfred Wegener Institute for Polar and Marine Research (AWI) explore polar areas, oceans and their shores. Target is to understand the complex system Earth, especially the climate and its changes.
Part of the scientific marine research in the North Sea is the analysis of the ecology of marine organisms as well as studies of marine contamination, a topic becoming more and more explosive.
Marine life as shrimps or squids from the North Sea and polar seas are kept in the laboratories of the Alfred Wegener Institute to observe their way of living. In spite of appropriate water treatment marine organisms are once in a while affected by bacteria. This results in financial damage as well as loss of time for the individual research projects. Due to this reason an additional disinfection method was added to the process of cleaning the aquaria.
The challenge was:
- Disinfection of a „polar sea cycle” and two „North Sea cycles“ with a total of 45 m3 circulation volume
- Highly reliable disinfection
- Absolutely free from chemicals
- Corrosion resistance (salt water)
- Very limited space in the plant room
The solution consisted in:
- Procedural integration of one UV system in each cycle in order to increase disinfection safety
- Three noncorrosive UV systems type Dulcodes K with radiation chambers made of plastics
- Installation and spatial integration of the UV systems
Advantages for the Alfred Wegener Institute for Polar and Marine Research:
- Considerably reduced risk of infection for marine organisms
- Higher protection against financial loss
- No interruption of research projects
„The company eco-wasser with its system partner ProMinent supplied us with the optimal solution for safe disinfection. We are convinced of the combination of process competence and absolute reliability of the products applied.
(Dipl.-Ing. Guido Krieten, Technical Manager Sea Water Cycle, Alfred Wegener Institute, Bremerhaven)