Industrial cooling water systems create a unique ecological environment, with ideal conditions for microbial growth, such as suitable temperature, oxygen levels, nutrients, pH, and flow rate. These conditions lead to the rapid proliferation of microorganisms and the subsequent formation of biofilm sludge. This can cause various issues for water treatment systems, including microbial induced corrosion (MIC), reduced operational efficiency (such as decreased heat exchange efficiency), compromised system cleanliness, and potential health risks. The primary microorganisms in cooling water systems are bacteria and algae. In practice, the most direct and effective way to control microbial growth in such systems is the addition of biocides. It is crucial to select biocides that are tailored to the specific characteristics of each cooling water system. Proper selection of biocides can significantly reduce microbial accumulation in industrial cooling systems while minimizing environmental impact. Biocides play an indispensable role in maintaining cooling water systems, ensuring their efficiency and protection. Henning provides a range of non-oxidizing biocides for water treatment, effectively addressing microbial contamination issues in industrial water treatment applications.