The term Ozonation refers to which process?

Ozonation refers to the process of using ozone gas (O3) for treating water, particularly in the disinfection of wastewater or the effluent. Ozone is a powerful oxidizing agent that helps eliminate pathogens, including bacteria and viruses, effectively rendering the water safe for discharge or further treatment. The efficacy of ozone as a disinfectant comes from its ability to break down contaminants and microorganisms, making it an essential method in modern wastewater treatment processes.

In the context of wastewater treatment, ozonation serves as an advanced treatment option that typically follows biological treatments, as it can significantly reduce the concentration of residual pathogens and improve the quality of the effluent. While this process may be part of tertiary treatment, its primary role here is as a method of disinfection. Therefore, it is accurately identified as related to the disinfection of the effluent.