Which of the following is NOT a common method of disinfection in wastewater treatment?

The choice of newspaper treatment as a method of disinfection in wastewater treatment is not accurate because it is not a recognized or effective method for this purpose. Traditional disinfection methods in wastewater treatment focus on the destruction or inactivation of pathogens to make the treated water safe for release into the environment or for reuse.

Chlorine disinfection, ultraviolet light disinfection, and ozone treatment are all well-established techniques that utilize chemical or physical means to effectively reduce or eliminate pathogens present in wastewater. Chlorine is commonly added to wastewater to kill bacteria and viruses; UV light uses high-energy light to inactivate pathogens without introducing chemicals; and ozone treatment biologically oxidizes contaminants and pathogens using ozone gas.

In contrast, newspaper treatment has no scientific basis or practical application in the context of wastewater treatment disinfection. Therefore, it is clearly not a valid method of disinfection and is the correct answer to identify as the exception among the listed options.