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Overview

Discharged water from cooling towers contains anti-scalant, anti-corrodant and an-ti-microbiological toxic chemicals used to control scaling, fouling and corrosion. The blowdown is discharged into local sewage or stormwater systems and ultimately into the environment.

Key Facts

  • While high-efficiency cross-flow microsand filtration (CMF) is a uniquely effective solution for reducing fouling, according to research by Eneref Institute only about 15% of all US commercial buildings use CMF systems in their cooling towers.
  • Unlike total dissolved solids, total suspended solids (TSS) can be reduced by filtration. Reducing TSS makes chlorine and other disinfectants more effective, allowing chemical treatments to be reduced by as much as 35%.
  • In the United States, Legionnaires’ disease is fairly common and serious—one of the top three causes of non-epidemic, community-acquired pneumonia.
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