AWT: Monitoring & Partial Softening

Cooling towers create some of the larger potable water loads in commercial office buildings. Up to 50% is regularly flushed or blown down to minimize scale build up.

The National Renewable Energy Laboratory (NREL) tested a supplemental water treatment system that determines the optimal blowdown to satisfy water chemistry limits. Researchers found that the system saved 15% water.  View full-size infographic. [PDF - 235 KB]

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