Which method is NOT one of the ways to disinfect water?

Using distilled water is not a method of disinfecting water; instead, it refers to a specific type of water that has been purified through the process of distillation. Distillation involves heating water to create steam and then condensing that steam back into a liquid, which effectively removes impurities, including pathogens. While distilled water is safe to drink and can be used as a source of clean water, it does not involve a disinfection process to kill or deactivate pathogens in a water source.

In contrast, boiling water for 5-10 minutes effectively kills many pathogens present in the water. Adding iodine tablets is a recognized method of disinfection, as iodine has antiseptic properties that eliminate harmful microorganisms. Treating water with chlorine is another proven disinfection method, as chlorine is effective in killing bacteria and viruses. These methods directly address the need to make potentially contaminated water safe for consumption through an active disinfection process, contrasting sharply with the passive purification represented by distilled water.