Explanation:

Potassium permanganate is a point-of-entry treatment method that oxidizes dissolved iron, manganese, and hydrogen sulfide into solid particles that are filtered out of the water. It can also be used to control iron bacteria growth in wells.

Potassium permanganate, or KMnO4, is a common inorganic chemical used to treat drinking water for iron, manganese and sulfur odors. It can be used as a disinfectant as well, keeping drinking water free of harmful bacteria.