Water Filter Media for Water Filter Purification from Industrial Water Equipment Ltd

Birm
TYPICAL USES, IRON REMOVAL AND MANGANESE REMOVAL.
MAIN APPLICATIONS, PRESSURISED AND GRAVITY FED FILTERS.

What are the advantages of birm.

What is birm.

Birm is furnished in two grades: regular and fine. Regular Birm is generally recommended for industrial and municipal installations. Fine Birm is recommended for domestic application or in cases where the available backwash water is limited. Bed expansion of 35 to 50% in backwash is required for best results. 12 to 15 GPM per square foot are required for backwashing regular Birm. 8 to 10 CPM per square foot are required for fine Birm.

REGULAR BIRM - Order No. A8006. Unit weight: 47.50lbs per cubic foot.
Effective size	0.615mm	Uniformity	Coefficient	1.725	-	-	-
Sieve No:	9	9.14	14.20	20.28	28.35	35.48	48.100
Per cent:	0.5	30.3	34.7	26.5	6.8	0.4	-
Per cent retained:	0.5	30.8	65.5	92.0	98.8	99.2	-
FINE BIRM - Order No. A8007. Unit weight: 47.50lbs per cubic foot.
Sieve No:	9	9.14	14.20	20.28	28.35	35.48	48.100
Per cent:	0.5	0.7	2.3	12.5	35.0	32.5	11.5
Per cent retained:	0.5	1.2	35	16.0	51.0	83.5	95.

What will a birm filter remove.
1,Iron

There are three main forms of iron and manganese. Other types are much rarer:

Ferrous -

This type of iron is often called "clear water iron" since it is not visible in poured water. It is found in water which contains no oxygen, such as water from deep wells or groundwater. Carbon dioxide reacts with iron in the ground to form water-soluble ferrous bicarbonate, which, in the water, produces ferrous ions (Fe++).

Ferric -

Ferric iron is also known as "red water iron". This type of iron is basically ferrous iron which has been exposed to oxygen (oxidized), usually from the air. As carbon dioxide leave the water, oxygen combines with the iron to form ferric ions (Fe+++). These oxidized particles are generally visible in poured water.

Bacterial Iron -

Slime depositing in toilet tanks or fouling water filters and softeners is a good indication of the presence of bacterial iron. Better described as iron bio fouling, the iron bacteria problem is both complex and widespread. It attacks wells and water systems around the world in all sorts of aquifer environments, both contaminated and pristine. In some places, it causes great damage; in others, it is considered a minor

2. Manganese

The removal of manganese from water by the catalytic action of Birm usually requires a higher pH than is required for iron removal. Such water should have a pH in the range of 8.0-9.0.
The dissolved oxygen content should be 15% or more of the total manganese and iron expressed in ppm.

Other conditions are the same as for iron removal.
For manganese removal, consult our laboratory.

How long will my birm filter last.

A birm filter will usually last up to ten years with a yearly service,However within the ten years we would expect to have to change the media inside the vessel.The frequency of changing the media is totally dependant upon the incoming levels of iron and manganese.

How long is the guarantee on my birm filter.

If you purchase your birm water filter from us all working parts are fully guaranteed for one year.

Do I need my birm filter serviced.

It is usual to have a service contract with the company you brought the birm filter off.This company should inspect the water quality every year to ensure that the filter is working correctly. Please contact our service department for further details.

What incoming water parameters are required for the birm filter to work.