Sustainable cooling water through reuse of rainwater

RWB, in collaboration with ECW Energy, has offered an installation to ensure efficient absorption of rainwater and then purify it so that this water can be used as cooling water for the Microsoft data center.

Rainwater will be collected in the winter months and pumped into the ground after purification using self-cleaning filters. These filters ensure the effective removal of impurities, without time-consuming manual maintenance.
The purified water is the input for the sustainable ASR (Aquifer Storage and Recovery) system, which allows us to store the purified water and later recover it for further treatment.

The rainwater is pumped up again in the summer months, after which the iron and manganese particles are removed by using iron removal filters. Further purification takes place through reverse osmosis. This removes the smallest impurities and minerals and provides pure and sparkling cooling water.

On behalf of ECW, RWB water provided the complete water treatment for this sustainable and progressive project:
- Transport pumps between the collection basin to the central water building
- Pre-filtration and infiltration of the water into the underground freshwater source
- Pumping up the fresh water, filtering and conditioning the source water into cooling water
- Pumping the water to the data center and greenhouses
- Complete installation including intermediate piping and cabling
- Full automation of the water treatment installation and ASR control.

The collaboration between RWB and ECW Energy ensures sustainable water management and reduces the ecological footprint of data centers.