The most ideal disinfectant for drinking water is?

Chlorine dioxide is considered the most ideal disinfectant for drinking water. It is highly effective at killing a wide range of bacteria, viruses, and other pathogens, and it does not produce harmful byproducts like chlorine can. Additionally, chlorine dioxide is able to penetrate biofilms and reach bacteria that may be hiding in pipes or other surfaces. It is also relatively stable and does not degrade quickly, allowing it to provide long-lasting protection against waterborne illnesses.

Chlorine