Features of AFM® Glass filter media

AFM® Glass Filter Benefits

Features of AFM® glass filter media, high quality water filter glass, filter water, international standards, manufactured and imported from Europe. Efficiency in use for up to 15 years. There are 4 sizes, making the filtration quality up to 1 micron, 40 times higher than sand.
Features of Glass filter media

Dryden Aqua AFM® (Activated Filter Media)

Used as a replacement for sand and other filters in water filtration or wastewater applications.
AFM® Water Purifier Applications:

  • AFM® can be used as a replacement for sand filters in all sand filtration systems.
  • AFM® uses only 85% of amount sand filters.
    For example, if your conventional water filtration tank requires 1000 kg of sand, only 1000 x 0.85 = 850 kg of AFM® filter will be required.

The glass body is green and amber that has been enhanced and optimized for maximum filtration efficiency.

  • Consistent both the size of the filter granules and the shape.
  • Surface area increased by up to 300 times that of crushed glass or sand.
  • Surface is permanently negatively charged, allowing AFM® to self-sterilize.

Unique features of AFM® water filters
Bio-resistant, self-sterilizing, predictable performance.
Filters as small as 1 micron (Grade 0) and 4 microns (Grade 1)

  • AFM® glass filters are manufactured in four grades.
  • Grades 0 and 1 are used for very fine filtration.
  • Grades 2 and 3 provide better support and distribution of the flow through the filter.
Features of Glass filter media
filter water


Able to filter Vibrio Cholera, parasites Cryptosporidium, Giardia

filter water

super quality

Long service lifespan up to 15 years, need not to replace filters frequently

Moleclar sieve

Produced to have small, porous molecules arranged in an orderly manner.

ION Exchange

Cation Exchange: capture positive charge
Anion Exchange: Capture negative ions.

Excellent features of AFM® glass filter media

Features of AFM® new generation glass filter media
Features of Glass filter media
Features of Glass filter media
Features of Glass filter media

Self-sterilizing surface

Fully resistant to bacterial growth

Increased surface area

Superior mechanical filtration

High negative surface charge

Advanced adsorption of heavy metals

hydrophobic  properties

Self-cleaning surface

Fully resistant to bacterial growth

hydrophobic  properties

Increased surface area

Superior mechanical filtration

hydrophobic  properties

High negative surface charge

Advanced adsorption of heavy metals

filter glass

AFM® Glass Filter Benefits

AFM® Lifespan Service up to 15 years, without having to change the filter often

AFM® + APF® Filtration

Innovative Water Filtration With AFM® and APF®, turbid water can be filtered. Clean and clear easily and quickly, can be used to filter drinking water, waste water treatment, pool water and many other applications.

AFM® Backwash

Backwash the filter tank to remove any dirt on the AFM® to keep the AFM® clean and ready to use.

Thanks to the unique material of AFM®, the residue is completely removed. not left behind like a sand filter or other types of filters

Size and how to use AFM®

filter glass

Versatile, available in 4 sizes to choose from:

  • AFM® grain 0 = grain size 0.25 to 0.5 mm.
  • AFM® grain 1 = grain size 0.4 to 0.8 mm.
  • AFM® grain 2 = grain size 0.7 to 2.0 mm.
  • AFM® grain 3 = grain size 2.0 to 4.0 mm.

*NOTE : Applications should be used with a stander that has a slot size smaller than the size of the filter selected. To prevent the filter from leaking out of the filter tank. The standard should be 0.2-0.35 mm.

AFM® Grade NO.0

Bathing water
  • Used for filtering fine sediments of 1 micron or 0.001 millimeters.
  • Size of filter granules: 0.25-0.5 mm.

AFM® Grade NO.1

Bathing water
  • Able to filter sediment as fine as 5 microns or 0.005 millimeters.
  • Size of filter granules: 0.4-0.8 mm.
  • Usage ratio: 70% of the amount of filter used per tank

AFM® Grade NO.2

Bathing water
  • Use Grade 1 for foundation.
  • Size of filter granules: 0.7 to 2.0 mm.
  • Usage ratio: 15% of the amount of filter used per tank

AFM® Grade NO.3

Bathing water
  • Use Grade 2 for Foundation.
  • Size of filter granules: 2.0-4.0 mm.
  • Usage ratio: 15% of the amount of filter used per tank

Special advantages of AFM® (Activated Filter Media)

1. AFM® grade 0 can filter fine sediments larger than 1 micron (001 mm) and can filter down to 0.1 micron when used together with APF® (Flocculation Fluid). (Flocculation) and accelerate sedimentation. (Coagulation))

2. AFM® grade 1 can filter fine sediments larger than 5 microns (0.005 mm) and can filter down to 1 micron when used with APF®.

3. AFM® is made of glass, using approximately 90 – 95% green glass (Pure Green Glass) which contains high iron oxides (Metal Oxides) capable of generating free radicals (Free Radical) to create high Redox potential that is effective in eliminating bacteria and viruses with (Self-Sterilizing) is an environmentally friendly filter.

  • Green glass contains manganese and chromium oxide and helps to absorb heavy metals such as arsenic, cadmium and lead in water and pool water.
  • Amber glass contains aluminum or ferric oxide and aids in the adsorption of heavy metals such as copper, cadmium, nickel and lead in water.
4. AFM® is a single glass filter media with both anion and a positive charge in an anion

  • Negative ions (Cationic), which helps to accelerate the precipitation (Coagulants) of steel, aluminum.
  • Positive ions (Anionic), which helps in coagulation. (Flocculants) of steel and aluminum

5. Surface of AFM® has a high negative charge potential, which helps in the adsorption of heavy metals and organic matter in water and pool waterwith a positive charge potential. It is also an oxidizer, so the AFM® surface is kept clean because it is free from bacteria. Preventing the occurrence of Trichloramine, can reduce THMs by 50 – 90%.


6. AFM® can kill bacteria. Cyanobacteria, Diatoms and Legionella, which are sources for biofilm formation.

7. AFM® Grade 0, when combined with APF®, can filter Vibrio Cholera bacteria (3 micron), parasites such as Cryptosporidium, Giardia.

  • Cryptosporidium is a parasitic or protozoan of the Coccidia type, approximately 5 microns in size, living in the intestinal tract, causing diarrhea.
  • Vibrio Cholerae is a bacterium that causes cholera or hemorrhoids.
  • Giardiasis is a type of protozoa. When it enters the body, it causes an infection in the small intestine and can become acute and chronic diarrhea
8. With the correct grain size and shape, AFM® is ideal for water filtration applications. A typical water filter glass has a surface area (Filter Surface) of approximately 3,000 square meters per 1 cubic meter, but AFM® has a surface area of more than 1,000,000 square meters per 1 cubic meter, which is 300 times more surface area than conventional filtered glass.

9. Phosphates come in three forms:

  • Phosphate in organic form found in plankton, algae, and bacterial forms
  • Phosphate in inorganic form or in solid form, known as phosphorus
  • Soluble phosphate is called Ortho-phosphate
  • Water purification to a resolution of less than 1 micron or the use of AFM® with APF® can remove both organic particulate phosphate. and more than 95% inorganic. AFM directly adsorbs soluble orthophosphate PO4 2- solution. In a layer known as the AFM stern layer, AFM® has low adsorption capacity, but sufficient for adsorption. After Ferric, Lanthanum or Magnesium is precipitated (Fe3+)2(PO42-)3 Mg2+NH4+PO42- ) and these substances are discarded from the filter tank by the backwash process, there is no accumulation of germs, bacteria and metal. Heavy on the filter grains like sand or other heavy metal filters.
10. Picture shows the filtration efficiency at Filtration velocity 20 Meter/Hour compared to other filters. It has been shown that AFM® can filter more than 99% at 1 micron, while other filters can only filter 5 microns or more
11. AFM® takes only 4-5 minutes to backwash and removes dirt. Helps to save water, time, the filter system can work continuously
12. AFM® has received a Reg 31 (Public water supply) certified water purifier from the UK; that it is safe for use with drinking water filtration systems. It was tested and confirmed by the IFTS in France in 2014 to be more effective than quartz sand and other water filters, WQA, NSF50 (Swimming Pools) and NSF61 (Drinking Water), HACCP, UK DWI and others.
13. The problem of wastewater from leather factories is chromium. AFM® compounds can convert Cr5+ (valent chromium 5) to Cr3+ (valent chromium 3) which is safer and absorbing positive ions based on the principles of AFM®
14. For wastewater treatment from hotels and restaurants, AFM® can absorb up to 100 mg/L of fat. And when used in conjunction with APF®, fat removal is up to 2000 mg/L or more than 99%.

15. Can filter pool water turbidity to less than 0.05 NTU and reduce TSS (Total Suspended Solid) by more than 90%

16. AFM®, when used in pretreatment systems for RO and UF membranes, can help reduce membrane clogging by providing a SDI (silt density index) of less than 3, which is the standard for raw water before entering the membrane. The SDI value must not exceed 5 and it can also help collapse conventional pretreatment systems with heavy metal sedimentation tanks such as carbon filter tank and fine sediment filter set of which leaving only one AFM® filter tank left.

17. AFM® can remove more than 95% Ferric, more than 80% Manganese, more than 90% Arsenic, TBT (tributyltin), Copper, Mercury and PCB`s Works effluent (AFM® filtration to remove the suspended metal oxide solids, there will also be adsorption reactions and surface oxidation reactions.)

  • Transforms from aqueous solution form to insoluble form (Co-precipitation reactions – accelerating sedimentation) to be removed from the filter tank by backwash process.
  • Iron changes from Fe2+ (Ferrous – Ferrous) to Fe3+ (Ferric – Ferric)
  • Manganese change from Mn2+ to Mn4+
  • Arsenic change from AS3+ to AS5+
  • AFM® has been tested for water purification efficiency by the ECO-India project and FP7 research project in arsenic removal. Comparative test results show that it is more effective than High quality silica sand filters
18. AFM® can absorb harmful chemicals such as herbicides.
19. AFM® can reduce DOC or dissolved organic carbon by eliminating organic matter in water (A Negative Zeta potential of AFM adsorbs small particles and dissolved organic molecules from water), but the use of sand will create organic matter, causing the DOC value higher when used, so when the DOC value is reduced the TOC value (total organic carbon) The organic carbon in water is the food of bacteria, when the bacteria are abundant the need for oxygen in the water increases. When the excretion of bacteria produces a large amount of carbon dioxide in the water and most importantly, organic carbon is also a food for Vibrio Sp. that causes many shrimp diseases.
Bacteria that are organic substances in water need oxygen (Aerobic bacteria) to decompose inorganic substances. The oxygen demand of these bacteria decreases the dissolved oxygen content in the water. Therefore, clean water has a high DO value (Dissolved Oxygen) and waste water has a low DO value.

BOD (Biochemical Oxygen demand) is the amount of oxygen that microorganisms use to break down organic matter in water.

  • Water with a BOD greater than 100 is waste water and if the water has a BOD < 100 mg/l it is bile.
  • Water with a high BOD indicates a high content of organic matter. Microorganisms need O2 to break down those organic compounds.
  • Water with a low BOD indicates a low organic content. Microorganisms need O2 to break down those organic compounds.

20. AFM® and ACO® can help remove nitrogen from swimming pools and fish ponds. AFM® filters out organic matter and filters out bacteria, and ACO® converts organic nitrogen to nitrogen gas, for gas to evaporate into the atmosphere

  • Oxidation potential (eV), oxidation potential
  • Fluorine (F) 2.87
  • Hydroxyl radical (OH) 2.86
  • Oxygen atom (O) 2.42
  • Ozone (O3) 2.07
  • Hydrogen peroxide (H2O2) 1.78
  • Chlorine (Cl) 1.36
  • Oxygen molecule (O2) 1.23

Nitrogen is an essential trace element for plants which will be in the form of Ammonia – nitrogen, nitrite, nitrate, if the water contains a high nitrogen content. It will make aquatic plants grow rapidly
Plants can synthesize nitrogen-containing organic matter. Animals, when eating plants, excrete nitrogen in organic form. Microorganisms convert nitrogen into inorganic substances, such as ammonia, we call this cycle as Ammonification. The other ammonia is oxidized by Nitrosomonas and Nitrobacter bacteria to Nitrite and Nitrate respectively under



Water Containing Oxygen

Properties of Glass filter media


Free radicals by surface catalytic reaction
The free radicals help prevent biofouling and will cause some oxidation of dissolved organic matter and heavy metals and metalloids. Dissolved oxygen levels must be above 2mg/l for the reactions to proceed.


Each size of AFM® (Activated filter media) contains 25 KG / 1 bag of filter media.

Properties of Glass filter media