Disinfection systems play a crucial role in water and wastewater treatment by eliminating harmful microorganisms, bacteria, and viruses to ensure safe and clean water. These systems use various technologies such as chlorination, ultraviolet (UV) irradiation, and ozone treatment to achieve effective disinfection. UV systems use high-intensity UV light to destroy pathogens without adding chemicals, while ozone treatment oxidizes contaminants for enhanced purification. Chlorination, one of the most widely used methods, provides residual protection against microbial regrowth. Disinfection systems are essential in municipal water treatment plants, industrial processes, and healthcare facilities to maintain water safety and hygiene compliance.