What is typically one of the last steps in the water filtration process?

Disinfection is indeed one of the last steps in the water filtration process because it is aimed at eliminating any remaining pathogens that may not have been removed during the previous filtration stages. After water has undergone various forms of filtration—such as physical and biological methods, which serve to remove larger particles and organic matter—a final disinfection step is critical to ensure that the water is safe for consumption.

This step often involves the addition of chemicals, such as chlorine or chloramine, or the use of methods like ultraviolet (UV) light, which are effective at killing or inactivating harmful microorganisms. By placing disinfection at the end of the water treatment sequence, it acts as a safeguard, ensuring that the treated water remains free of pathogens up until it reaches the end-user. This is particularly important in preventing waterborne diseases and ensuring public health safety.