Potassium permanganate should be fed as what?

Potassium permanganate is primarily used in water treatment as a pre-treatment chemical. It serves several purposes, such as controlling taste and odor, oxidizing organic compounds, and removing iron and manganese from water supplies. When applied before the main treatment processes, it helps to enhance the effectiveness of subsequent treatment stages by reducing the concentrations of certain contaminants and facilitating their removal.

Feeding potassium permanganate during pre-treatment allows it to react with impurities before entering processes like coagulation and filtration, ensuring that the water treatment system operates more efficiently. This strategy can lead to lower chemical dosages in later stages and improve the overall water quality.