What does the term "chloramine" refer to in the context of wastewater treatment?

The term "chloramine" in the context of wastewater treatment specifically refers to a disinfectant that is formed by the reaction of chlorine with ammonia. This compound is used to disinfect water because it is more stable than free chlorine and can provide residual disinfection throughout the distribution system. Chloramine is particularly beneficial in situations where residual disinfectant is necessary to prevent microbial regrowth after the initial treatment process.

In contrast to free chlorine, chloramine releases its disinfecting properties more gradually, making it effective over longer periods. This characteristic is valuable for treatment facilities that need reliable disinfection throughout the entire system without the potential for odor and taste issues that can arise with chlorine alone.

Understanding chloramine's role is crucial for wastewater operators because it helps in managing water quality, ensuring safety for public health, and preventing recontamination after treatment. Additionally, knowledge of chloramine's formation and its uses plays a key part in compliance with regulatory standards for drinking water safety and wastewater management.