What is the primary use of chlorine in wastewater treatment?

Chlorine is primarily used in wastewater treatment for its disinfection properties. It effectively eliminates pathogens, including bacteria, viruses, and parasites, from the water, making it safe before it is released into the environment or reused. This process is crucial for protecting public health and minimizing the environmental impact of wastewater discharges.

While chlorine does have secondary roles, such as being involved in some reactions that could affect pH or help with certain stabilization processes, its principal application remains disinfection. This vital function ensures that treated wastewater is compliant with health standards and safe for various uses, thereby underscoring its significance in wastewater management practices.