Iron (Fe) and manganese (Mn) are abundant elements in the earth’s crust, they are mostly in oxidized state (Ferric, Fe3+ and Mn4+) and are insoluble in natural waters, however, under reducing condition. appreciable amounts of iron and manganese may occur in surface water and groundwater. the reduced form are soluble divalent ferrous(Fe2+) and manganous(Mn2+) ions that are chemically bound with organic matter.

Ferrolite is a filter media that can eliminate iron content in water which is characterized by a pungent iron odor and yellow water color.