Water scarcity, water reuse, and environmental concerns present challenges for cooling water systems (CWSs). Operating CWSs at high cycles of concentration (COC) increases the deposition potential on heat exchangers, tower fill, and piping. These conditions necessitate robust treatment programs to prevent deposition (both fouling and scaling) and corrosion.

This paper presents approaches to manage CWSs operating under high stressed conditions attributable to make up water contaminants (e.g., high calcium, temperature, aluminum). Technologies for preventing deposition in cooling systems operating under stressed conditions are discussed.

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