Birm Media For Iron Removal Filter is efficiently helps to remove the iron and manganese from the raw water. It may be used by both gravity fed or pressurized water treatment systems. It acts as insoluble catalyst to enhance the reaction between dissolved oxygen and the iron compounds. In ground water dissolved iron is normally in the ferrous bicarbonate state due to the excess of free carbon dioxide and is not filterable. Birm acts as a catalyst between the oxygen and soluble iron compounds and enhances the oxidation reaction of Fe++ to Fe+++ and produces ferric hydroxide which precipitates and is easily filtered. Birm is easily cleaned by backwashing to remove the ferric hydroxide and regeneration is not requied. Other benefits of birm include long material life with relatively low attrition loss,a wide temperature performance range and extremely high removal efficiency.