AFM® Activated Filter Media

Quick Overview

AFM® Activated Filter Media is a direct replacement for sand, doubling the performance of sand filters without the need of additional investments in infrastructure.


AFM® resists biofouling, biocoagulation and transient wormhole channeling of unfiltered water and never needs to be recharged or replaced


4 AFM Grades Available :



  • AFM Grade 0 = 0.25mm to 0.5mm

  • AFM Grade 1 = 0.4mm to 1.0mm

  • AFM Grade 2 = 1.0mm to 2.0mm

  • AFM Grade 3 = 2.0mm to 4.0mm

Excl. Tax: £20.80 Incl. Tax: £24.96

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AFM
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Details

What is AFM?

AFM® Activated Filter Media is a direct replacement for sand, doubling the performance of sand filters without the need of additional investments in infrastructure. AFM® resists biofouling, biocoagulation and transient wormhole channeling of unfiltered water and never needs to be recharged or replaced.

AFM® is a highly engineered product manufactured from a specific glass type, processed to obtain the optimum particle size and shape. It is then exposed to a 3-step activation process to increase its surface area by up to 300 times for superior mechanical and electro-static filtration performance.

The activated surface of AFM® is self-sterilizing which prevents bacteria mud-balling, coagulation and channeling of unfiltered water through the filter bed. Activation increases the surface area by up to 300 times for catalysis and adsorption reactions. Similar to activated carbon, the surface nano-structure adsorbs pollutants from the water but unlike carbon, AFM® is recharged by just back-washing with water.

AFM FiltrationAFM Benifits

  • more than doubles the performance of an existing filtration system without the need for additional investments
  • is not subject to biodynamic instability and will never allow untreated water to pass the filter
  • substantially lowers chlorine oxidation demand by up to 50%
  • lowers backwash water demand by an average of 50%
  • is expected to last for the life of the filtration system
  • provides quick return on investment

AFM® replaces sand in all sand filters

AFM® reduces the biological risk from bacteria and parasites as well as the chemical risk. AFM® does not channel so it is an effective barrier against Cryptosporidium and giardia. AFM® does not incubate or discharge bacteria and will reduce the bacterial load of the product water. Also because of the better filtration performance, there are lower THM concentrations. AFM® also provides an excellent solution to remove metals and heavy metals from water.

AFM® is manufactured in a state-of-the-art hygienic factory designed by Dr. Howard Dryden, CEO and inventor of AFM®. AFM® contains metal oxide catalysts that dissociate oxygen and water to create a zone of high oxidation potential to prevent bacteria growing on the surface of AFM®. In addition, the huge activated surface area has a strong negative charge for the adsorption of sub-micron particles and dissolved organic molecules. This makes AFM® far superior to any other filtration media because AFM® does not need to be replaced and is recharged by a simple back-wash.

 

What is the recommended layering of AFM?


If you are currently using sand or glas sand simply replace this in your filter with AFM. While sand has a specific weight of 1‘450 kg/m3, the specific weight of AFM is 1‘250 kg / m3, and therefore it needs about 20 % less AFM according to weight. For example: your filter has 150 kg of sand, only 125 kg of AFM are needed.

Active Filter Media Grades

AFM is supplied in four different grain sizes and should be used as follows:

  • AFM grain 0 = 0.25 to 0.5 mm grain size
  • AFM grain 1 = 0.4 to 1.0 mm grain size
  • AFM grain 2 = 1.0 to 2.0 mm grain size
  • AFM grain 3 = 2.0 to 4.0 mm grain size

Grain 2 can be used for filters less than 1000 mm in diameter instead of grain 3. Also for all DIN filters with nozzle plate, grain 3 can be substituted with grain 2.

Product Attachments

View FileAFM Active Filter Media IFTS Report    Size: (425.18 KB)

AFM® Activated Filter Media Independent performance test results, July 2014*

IFTS (Institut de la Filtration et des Techniques Séparatives www.ifts-sls.com)

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