How are microbiological organisms most effectively killed in the cooling tower water system?

In a cooling tower water system, effective control of microbiological organisms often relies on the use of chemical treatments. Temporarily raising the concentration of chemicals serves to create a hostile environment for bacteria, algae, and other microorganisms. Higher concentrations of biocides can effectively disrupt microbial cell structures and metabolic processes, leading to the rapid elimination of these organisms.

This method is advantageous because it allows for targeted treatment when microbial populations are known to spike, such as during warmer weather when cooling system temperatures rise and provide an ideal breeding ground for these organisms.

Maintaining a constant temperature typically does not directly kill microorganisms; instead, it can influence their growth rates. Reducing water flow may lead to stagnation, which can actually promote microbial growth rather than inhibit it. While non-chemical methods can be beneficial, such as physical cleaning or the use of ultraviolet light, they may not be as broadly effective or as easily applied as chemical methods when addressing large-scale contamination.