What is the main function of chlorine in water treatment?

The primary function of chlorine in water treatment is to kill harmful microorganisms. Chlorine acts as a disinfectant, effectively targeting bacteria, viruses, and other pathogens that can cause waterborne diseases. By introducing chlorine into the water supply, operators ensure that the water is safe for public consumption. This process is crucial, particularly in preventing outbreaks of illness and maintaining overall public health.

While chlorine can have some secondary effects, such as contributing to the improvement of taste or slightly affecting the perception of color in water, these are not its main purposes. Softening the water typically involves different processes, such as the use of certain chemicals or ion exchange methods; therefore, it does not directly relate to the function of chlorine. The primary aim of chlorine usage remains its disinfectant properties, making it an essential component of effective water treatment protocols.