One of the primary categories of water purifying chemicals is disinfectants. Chlorine and chloramine are commonly used disinfectants that help eliminate bacteria, viruses, and other pathogens from water. Chlorine is particularly effective due to its ability to penetrate microorganisms and kill them off, making it a popular choice in municipal water treatment systems. However, it is essential to balance the concentration of chlorine, as excessive amounts can lead to the formation of harmful byproducts, such as trihalomethanes (THMs), which have been linked to health concerns.
Microbial growth, including bacteria, algae, and fungi, can lead to biofouling, which decreases heat exchange efficiency and can create health risks. Biocides are essential for controlling these organisms. They can be categorized into oxidizing and non-oxidizing types. Oxidizing biocides, such as chlorine and bromine, kill microbes by disrupting their cellular functions, while non-oxidizing biocides, like isothiazolinones, work by inhibiting their growth. Maintaining appropriate biocide levels is crucial for system integrity and compliance with health and safety regulations.