Birm filter media

    Brand: Clack
    Origin: USA


    • Model: Birm (A8006)
    • Characteristics: Dark brown granules, hard, dry and loose
    • Density: 640-720 kg/m3
    • Standard size: 10 x 40 mesh (0.4 – 2 mm)
    • Iron adsorption: 9.5 mg/g
    • Arsenic adsorption: 0.2 mg/g
    • pH operating range: 6.8 – 9
    • Required bed depth: 750 – 900 mm
    • Effective filtration speed: 8.55 – 12.2 m3/m2.h
    • Required backwash speed: 30 – 40 m3/m2.h
    • Specification: 20 kg/bag
    • Application: Used as a catalyst in the reduction of iron, manganese, and arsenic
    • Replacement cycle: 2-3 years
    • Unit price applies to 1bag
    • Origin: Clack
    • Get an immediate 5% discount on your total order when purchasing more than 10 units of product. Please log in to cart and checkout to receive the offer immediately
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    • Product unit price: VAT included
    • Commitment to quality: With every product sold, we are always committed to providing quality to customers. For any complaints, you can contact directly to hotline 0913 90 72 74
    • Product: 100% genuine, original, original packaging
    • Warranty: 12 months, return within 14 days if there is a manufacturer defect
    • Transportation and installation: Reputable - fast - on time
    • After-sales service: Peace of mind, dedicated to customers.

    Birm filter media

    What is birm?

    Birm® is an effective and economical filter material for reducing dissolved iron and manganese compounds from raw water supplies. It can be used in gravity or pressure water filtration systems. Birm filter media acts as an insoluble catalyst to enhance the reaction between dissolved oxygen (D.O.) and iron compounds.

    In groundwater, dissolved iron is often in the iron bicarbonate state because there is too much free and unfilterable carbon dioxide. Birm, acting as a catalyst between oxygen and dissolved iron compounds, enhances the oxidation reaction of Fe++ to Fe+++ and produces iron hydroxide which precipitates and can be easily filtered. Birm’s physical properties make it an excellent filter media, easily cleaned by backwashing to remove precipitates. Birm filter media is not consumed in the iron removal operation and therefore offers a huge economic advantage over many other iron removal methods.

    Physical properties

    • Black brown color
    • Bulk density: 40-45 lbs./cu. ft.
    • Mesh size: 10 x 40
    • Specific gravity: 2.0 gm/cc
    • Effective size: 0.48 mm
    • Uniformity coefficient: 2.7
    Birm photo

    Features of Birm:

    • Acts as an insoluble catalyst to remove Iron, Manganese, Arsenic and some soluble heavy metal compounds in water sources.
    • The surface can be easily cleaned by backwashing to remove precipitated substances
    • Characteristics: granular, dark brown, hard, dry and loose
    • Difficult to dissolve in iron reactions, long usage time and low material consumption
    • Birm granules are a manganese dioxide MnO2 coated aluminum silicate filter material. This coating is a highly oxidizing compound that acts as an insoluble catalyst to enhance the oxidation reactions of Fe2+ to Fe3+ and produce Fe(OH)3 iron hydroxide that precipitates (alum) and adheres to the surface of birm’s layers.

    Operating conditions

    • The alkalinity must be greater than twice the combined sulfate and chloride concentration.
    • Maximum water temperature: 100°F/38°C
    • Water pH range: 6.8-9.0
    • The dissolved oxygen (D.O.) content must be at least 15% of the iron content and 29% of the manganese content.
    • Birm bed depth: 30-36 inches (750-900mm).
    • Backwash speed: 10-12 gpm/sq. ft.
    • Expansion during backwashing: 20-40% of Birm bed depth (minimum)
    • Filtration rate: 3.5-5 gpm/sq.ft (8.55 – 12.2 m3/m2.h), intermittent flow rates and/or favorable local conditions may allow high filtration rates than

    Restrict operating conditions for input water

    • Free chlorine concentration (residual chlorine) is below 0.5 ppm, which means that if you are filtering municipal water, or previously treated chlorinated of raw water, Birm is not recommended.
    • Hydrogen Sulfide should be removed before exposure to Birm media
    • Oil: None
    • Polyphosphate: None

    Birm’s application

    • Under the right conditions, there is no need to purchase chemicals for maintenance. Regeneration is not necessary.
    • Iron removal efficiency is extremely high.
    • Labor costs are negligible: only periodic backwashing is required.
    • Durable material with long life and wide temperature range.
    • Weighs only 40-45 lbs./cu. ft. (640-720kg/m3)

    To effectively remove impurities from water, you should combine gravel, quartz sand, activated carbon, etc. In addition, you need to replace this Birm within 2 to 3 years to increase water filtration efficiency.

    Above is basic information about the characteristics, uses and how to use Birm effectively. If you want to buy quality water filter Birm seeds at a good price, please contact Song Phung Environmental Company immediately for quick advice and support!

    Filter media calculator

    Calculate filter media for filter tank (Purpose: calculate filter media, select filter media, calculate height of filter material in filter tank, select filter capacity for filter tank, select appropriate filter tank)

    Enter filter tank diameter (mm):
    FRP filter tank model:

    Average filter flow (for filter speed - 15m3/m2.h): m3/h

    Filter media

    Total height of filter media: mm

    Media type Filter media height Unit Results Unit
    Filter gravel mm kg
    Filter sand mm kg
    Glass sand mm kg
    Anthracite coal mm kg
    Activated carbon mm kg
    Birm for removed iron mm kg
    ODM for removed iron mm L
    Softener resin mm L

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    Product is waiting for user manual to be updated
    Please contact the technical department for support and instructions for use:

    Mr. Huy – 0913274433

    Mr. Lực – 0919569221

    Email: cskh@thietbinganhnuoc.com


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