Chemical Plant Water: Boiler Feed, Cooling and Process Water

Oct 27, 20267 min readVOLARDDA Engineering Team432 views

Boiler feed is judged by hardness and conductivity, not by appearance. A softener is enough for low-pressure boilers; higher pressure needs demineralization or RO to keep silica and dissolved solids under control.

  • Cooling tower make-up softened to 0–50 ppm hardness dramatically reduces blowdown and chemical dosing.
  • For rinse water in electroplating and circuit boards, RO plus mixed bed gives the low conductivity that prevents spotting.
  • Water reuse is usually the fastest payback in this sector — treated effluent can feed cooling towers instead of the drain.
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