Features ▶ For the removal of iron - In water with alkalinity, iron is melted as Fe (HCO3)2. It is safe only when an appropriate amount of CO2 exists Fe(HCO3)2 FeCO3+CO2+H2O - Oxidation by ferox is as follows K2Z·MnO·Mn2O7+4Fe(HCO3)2 → K2Z+3MO2+2Fe2O3+8CO2+4H2O (Z : Zeolite) - The contact oxidized steel becomes insoluble, and thus is filtered, separated, and removed while passing through the Ferox layer ▶ For the removal of manganese - Manganese is melted in a similar state to iron - In general, it coexists with iron, but sometimes it exits independently. Its quantity is very small, compared with iron - The process of removing manganese is same as that for iron, and sometimes, the two are removed simultaneously