What controls biological growth in the tower and in circulating water?
A. pH
B. Biocides
C. Dispersants
D. Corrosion inhibitors
A. Incorrect. A cooling tower requires pH adjustment for the health of the tower and equipment. These pH controls assist corrosion control and suppress organic growth (for example, algae).
B. Correct. Biocides control biological growth (for example, bacteria and algae) in the tower and in circulating water.
C. Incorrect. Dispersants are used to clean the cooling tower and other equipment by keeping foreign material distributed in the water until filters can remove them.
D. Incorrect. Corrosion inhibitors are chemicals added to cooling tower water to prevent corrosion in piping and heat exchange equipment.
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