Chlorine is the most common disinfectant used with water.
The process of separating parts of a substance by vaporizing it and then condensing the vapor. It can be used to help purify water, first by boiling, then collecting the steam as it condenses. Most contaminants are left behind. A widespread event, usually a disease or illness, affecting many people in a community or large area at the same time. The process by which water becomes vapor in the atmosphere.