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Water saving systems

Recycling and reduced evaporation

Innovative concepts for optimizing water consumption for cooling circuits and for the whole process water chain from production to treatment.

By using a dry cooling system and/or adiabatic cooling tower, a maximum of up to 100% make-up water, adapted to the cooling task requirements, can be saved with a simultaneous rise in the cooling water temperature. However, this depends to a large extent on the climatic conditions at the installation site.

Using river water for recooling

The use of a water-to-water heat transfer allows the heat generated to be dissipated in a river or sea, for example. Which results in savings in the evaporation of make-up water. So losses are reduced. What's more, the investment costs and space requirements for a heat exchanger are far lower than for cooling towers. 

Figure: River water-cooling water heat exchanger Figure: River water-cooling water heat exchanger Figure: River water-cooling water heat exchanger Figure: River water-cooling water heat exchanger
Figure: River water-cooling water heat exchanger

Water treatment

With the treatment of the make-up water in particular, we are able to reduce the volume of make-up water by increasing the degree of thickening. So less water needs to be fed into the process.

Another option is to treat a portion of the blowdown water using reverse osmosis, thereby reducing the amount of new make-up water required, as the treated blowdown water is fed back into the circuit as make-up water.

Figure: Example of a softening system Figure: Example of a softening system Figure: Example of a softening system Figure: Example of a softening system
Figure: Example of a softening system