We Ion Water Machineries manufacturer and supplier of iron removal filter since 1967 in all over India. Raw water generally contains of soluble iron in form of ferrous bicarbonate and insoluble as ferric hydroxide. Water containing ferrous bicarbonate is clear when coming out from a boring, but as soon as it comes in contact with oxygen a whitish haze, which on longer standing turns yellowish and then forms yellowish to reddish-brown deposits of hydrated ferric oxide, some of this deposit sticks to the side of the filter vessel and the rest sinks to the bottom. Oxidation of ferrous bicarbonate is usually accomplished by the dissolved oxygen introduce into the water by aeration. Water directly from the boring is first passed into the aeration chamber packed with manganese base catalyst. Before entering into the aeration chamber air is injected with water from an air compressor. Here according to the above reaction iron is oxidized into ferric form. Water is then passed through the iron removal filter packed with catalytic filtering media. Here the residual ferrous iron is oxidized into ferric and entire precipitated ferric hydroxide is filtered out. The precipitated and entrapped ferric hydroxide is then removed from the filter bed during back washing. Capacity 50 to 50000 gallon per hour and above.