Chemical treatment
A biocide program for biological control can be implemented in conjunction with the maintenance program for
increased operational safety. However, biological control should not be used in place of good housekeeping.
The two most commonly available biocides are chlorine and bromide. These chemicals have widespread success
in general application; however, caution should be practiced when using them in the adiabatic pre-cooling system.
Continuous dosages of chlorine or bromide could delignify the cellulose fibres of the pre-cooler media, and degrade
the stiffening agents.
RECOMMENDED CHLORINE / BROMIDE DOSAGES
Continuous Treatment:
Not required when basic housekeeping practices are followed, and when the guidelines
for operation and maintenance of this bulletin are followed.
Shock Treatment:
3.0 – 5.0 PPM Free Halogens. Not recommended more often than once per quarter.
W W W . B A L T I M O R E A I R C O I L . E U
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3 Water care
3 Water care
