What role does chlorine serve as a strong oxidizer in water treatment?

Chlorine serves as a strong oxidizer in water treatment primarily through its ability to oxidize various contaminants, including iron, manganese, and organic molecules. This is a crucial step in the treatment process, as oxidation helps to convert these substances into forms that can be easily removed from the water. For instance, iron and manganese can cause staining and other issues in water systems, and when oxidized by chlorine, they are typically transformed into insoluble forms that can be filtered out effectively.

In addition to its role in dealing with metal contaminants, chlorine also helps to break down organic compounds, which can be the source of taste and odor problems in drinking water. By oxidizing these materials, chlorine improves the overall quality of the water, making it safer and more pleasant for consumption. This multifaceted role of chlorine underscores its importance in ensuring that drinking water meets safety and aesthetic standards.