Birm – Iron and Manganese Removal Media 1 cuft

Birm is a filter media for the removal of iron and manganese. It Is an aluminium silicate coated with manganese dioxide. Under the proper conditions no chemicals but an air pocket is needed. In that case Birm only needs to be backwashed from time to time with water.

Birm acts as a catalyst to enhance the reaction between dissolved oxygen and the iron compounds, changing the Fe²+ into Fe³+ and form ferric hydroxide that precipitates and may be easily filtered.

Birm® is an efficient and economical media for the reduction of dissolved iron and manganese compounds from raw water supplies. It may be used in either gravity fed or pressurized water treatment systems. Birm acts as an insoluble catalyst to enhance the reaction between dissolved oxygen (D.O.) and the iron compounds. In ground waters the dissolved iron is usually in the ferrous bicarbonate state due to the excess of free carbon dioxide and is not filterable. Birm, acting as a catalyst between the oxygen and the soluble iron compounds, enhances the oxidation reaction of Fe++ to Fe+++ and produces ferric hydroxide which precipitates and may be easily filtered. The physical characteristics of Birm provide an excellent filter media which is easily cleaned by backwashing to remove the  precipitant. Birm is not consumed in the iron removal operation and therefore offers a tremendous economic advantage over many other iron removal methods.