Which water treatment method utilizes ozone for disinfection?

Ozonation is the water treatment method that specifically utilizes ozone for disinfection. Ozone is a powerful oxidizing agent that effectively kills bacteria, viruses, and other pathogens by breaking down their cell walls. This method is appreciated for its ability to disinfect water without leaving harmful residues, as ozone reverts back to oxygen shortly after its application. The disinfection process using ozone also results in improved water quality, including the reduction of taste and odor issues.

In contrast, chlorination involves the use of chlorine compounds and has different chemical properties and disinfection capabilities. UV irradiation uses ultraviolet light to disinfect water but does not involve chemical agents like ozone. Filtration involves physical or mechanical processes to remove impurities but does not directly sanitize water through disinfection like ozonation does. Understanding these distinctions helps to clarify why ozonation is the correct answer concerning methods that specifically use ozone for disinfection.