In November 1990 the shutdown of the Rheinsberg nuclear power station situated north of Berlin was decided after 23 years of Operation and its deconstruction initiated.

The reactor core is taken apart at a water depth of about eight metres. The problem:
The sight under water is impeded because the water is contaminated by the cutting with plasma cutting torches and other dis mantling procedures.

The owner of the power station, Energiewerke Nord GmbH, placed an order with Babcock Noell in June 2003 tor the construction of a water cleaning plant. This prevents the contamination of the water in a reliable manner and thereby facilitates undisturbed and safe working under water.

The contract volume amounts to approx. Euro 1.2 million.

The plant was completed in September 2005.

The main features of the plant which was completed by BNN GmbH in 2005 are:

• Four pumps with a driving power of 42 KW each and a volume flow of 100 cubic metres per hour at a gauge pressure of six bar
• A coarse separator with a strainer basket (the strainer basked can be exchanged by remote control)
• A secondary filter with a degree of separation of 2 mm (can be exchanged by remote control)
• Four working filters with a degree of separation of 6/10 mm (can be exchanged by remote control)