Iron Removable Filtration Plant (IRF)
To level the iron removable plant, chemical pre-treatment is conducted to facilitate accelerated aeration the chemically dosed water is then sent to the aeration tanks.These elements can be removed during softening with lime, but most commonly iron and manganese is removed by filtration after oxidation (with air, potassium permanganate, or chlorine). Gravity and pressure filters are both used, with pressure filters being the more popular.
