Active Filter Media

Product Details:

Benefits of AFM -

• AFM mechanically removes most particles down to 5 microns.
• Sand surface area, approx 3000m2/tonne, AFM surface area >1,000,000 m2/tonne
• The high surface negative charge potential helps to adsorb micron and sub-micron particles as well as some dissolved organics
• AFM rejects bacteria growth and worm-hole channelling
• Backwash water requirement reduced by 50%.
• No requirement to replace AFM for the life of the filter.
• AFM removes heavy metals, Iron, Manganese & Arsenic from the water.
• AFM reduces BOD, COD from the water.
• Reduced consumption of biocides & flocculants by 25 to 50%.
• AFM removes organic impurities/NOM from the water.
• AFM Removes colour & odour.

Certain specialised applications of AFM -

In addition to traditionally recommended substitute to filter media in rapid gravity sand filters or pressure sand filters. There are several critical application performed by AFM.

• Removal or Arsenic from the Potable water.
• Removal of chromium 6 from waste water.
• For COD reduction in waste water.( Textile, dyes & chemical industry).
• For colour removal in waste water.
• For removal of pseudomonas in process water.
• Process water treatment in pressure sand filters.
• Process water treatment for power plants.
• Raw water treatment in SWRO plants.
• AFM as a substitute to Disc, Bag, Cartridge filters.

Product Details:

Use of AFM for chromium 6 removal -

Chromium is occasionally found in ground water in trace amount from 1 to 10 ug/l however, the occurrence of chromium is usually associated with pollution from industries such a leather tanning, wood preservation and textiles. Polluted ground water may have much higher concentrations.

Hexavalent Chromium is very difficult to remove down to low concentrations, however, AFM can absorb Cr6+ directly from the water. If the concentration is low then it may be possible to just filter the water through a deep AFM filter bed >1200mm at a slow flow rate, 5m/hr. This may be all of the treatment required.

AFM has a low capacity for chromium, so in order to improve performance, water pretreatment may be required The Cr6+ is reduced to Cr3+ by using a reducing agent such as ferrous sulphate or calcium polysulphide. The reaction takes time, so a buffer tank of more than 30 minutes is required.

After the 30-minute contact tank, the water overflows to a second contact tank which is aerated, this oxidises any remaining ferrous to ferric which co-precipitates and flocculates the Cr3+ to form a solid particle that can be more easily removed by AFM. The bed may take few week to get conditioned to chromium.

 

Procedure:

1. The pH of the water to be treated should be above pH7.5
2. Ferrous sulphate and lime/calcium polysulfide may be injected into the water via a ZPM cavitating static mixer. Application rate approx. 20:1, 20 ferrous to 1 Chromium, and 5:1 for the calcium polysulphide.
3. After injection, the water enters a sedimentation decantation reaction tank for at least 30 minutes.
4. After decantation to water enters a second 30-minute retention tank for aeration. The aeration level is the same as water flow if water flow is 50m3/hr air flow is 50m3/hr applied via Dryden Aqua air diffusers. The aeration is not sufficient to oxidise the Cr3+ back to Cr6+ but it is sufficient to oxidise the Fe2+ to Fe3+ which helps to co-precipitate the Cr3+
5. The water is pumped out of the aeration tank to an AFM pressure filter.

 

AFM filtration Details:

Pretreatment of the water prior to filtration by AFM is very important. AFM will remove Cr6+ and Cr3+ by the following mechanisms:

• Direct adsorption of Cr6+ ion on to AFM
• Direct adsorption of chromium Cr3+: ferric particles onto the -ve charged surface of AFM
• Physical filtration of most particles down to 1 micron
• Back-washing with water will completely remove the Chromium
• Backwash water sludge should be separated and disposed of responsibly

Product Details:

UF, RO membranes & DM plant resins work best when they are new and clean. .As a pre-treatment prior to RO or UF, the SDI after AFM will be at least 50% to 75% lower than the SDI from a sand filter.

Specifications :

• The surface has a -70mV charge on it.
• Surface area of SFm is 1000000m2/ton
• Removed Particles up to 5 Micron
• Packaging: 25 kg bags

Product Details:

DGS is a filtration media made from 100% recycled glass in Dryden Aqua's ultra-sophisticated glass factories. In contrast to AFM®, DGS is made from mixed glass and it is not subjected to any activation process.

Product Details:

Certain specialised applications of AFM –

In addition to traditionally recommended substitute to filter media in rapid gravity sand filters or pressure sand filters. There are several critical application performed by AFM.

• Removal or Arsenic from the Potable water.
• Removal of chromium 6 from waste water.
• For COD reduction in waste water.( Textile, dyes & chemical industry).
• For colour removal in waste water.
• For removal of pseudomonas in process water.
• Process water treatment in pressure sand filters.
• Process water treatment for power plants.
• Raw water treatment in SWRO plants.
• AFM as a substitute to Disc, Bag, Cartridge filters.

Benefits of AFM –

• AFM mechanically removes most particles down to 5 microns.
• Sand surface area, approx 3000m2/tonne, AFM surface area >1,000,000 m2/tonne
• The high surface negative charge potential helps to adsorb micron and sub-micron particles as well as some dissolved organics
• AFM rejects bacteria growth and worm-hole channelling
• Backwash water requirement reduced by 50%.
• No requirement to replace AFM for the life of the filter.
• AFM removes heavy metals, Iron, Manganese & Arsenic from the water.
• AFM reduces BOD, COD from the water.
• Reduced consumption of biocides & flocculants by 25 to 50%.
• AFM removes organic impurities/NOM from the water.
• AFM Removes colour & odour.

 

AFM as a pre-treatment to RO, DM & EDI plants –

UF, RO membranes & DM plant resins work best when they are new and clean. Fouling of the membranes by inorganic and organic contaminants as well as biofouling are some of the main issues affecting the performance and cost of running water treatment systems.

AFM is an activated mesoporous aluminosilicate with glass as a structural substrate. The surface area is over 1,000,000m2 per tonne of filter media of a particle size 0.5 to 1.0mm. The very large surface area has a negative –ve charge for the adsorption of positive +ve particles that are too small to be mechanically removed from the water. The pre-coagulation and flocculation stage will drag some chemicals out of solution to form small positive charge particles that are easy to remove by AFM.

AFM is used prior to UF and RO, however, AFM filtration can actually out-perform UF filtration when combined with pre-coagulation and flocculation via a ZPM static mixer prior to AFM filtration. AFM is a much lower cost than UF and can remove most particles down to 0.1 microns and many particles that are much smaller by adsorption reactions. While UF will give absolute filtration down to 0.03 microns, AFM can give nominal filtration down to at least 0.1microns and sub 0.01-micron particles by electrical adsorption reactions. AFM will also remove many chemicals and pollutants from solution by selective molecular sieve adsorption. Indeed we can now activate AFM to remove specific dissolved priority substances from water. AFM can, therefore, perform better than UF and is a more cost-effective and efficient option as a pre-treatment prior to RO.

Regeneration of AFM is by a simple backwash using filtered water, and the process is 100% sustainable, the media should last for the life of the filtration system.

You don’t need to use chlorine with AFM for cleaning, so no THM (trihalomethane) production with organic matter such as organic acids. In addition to dissolved natural organic matter, TCP (trichlorophenol) can act as a precursor for the production TCA trichloroanisole. TCA has a terrible taste even at single-digit parts per trillion.

 

SDI control in membrane -

As a pre-treatment prior to RO or UF, the SDI after AFM will be at least 50% to 75% lower than the SDI from a sand filter. IFTS independent accredited laboratory has conducted a very detailed analysis of AFM in comparison to sand other media. The results confirm the superior performance of AFM.

Product details:

• The surface has a -70mV charge on it.
• Surface area of SFm is 1000000m2/ton
• Removed Particles up to 5 Micron
• Packaging: 25 kg bags

 

Product Details:

AFM as a pre-treatment to RO, DM & EDI plants -

UF, RO membranes & DM plant resins work best when they are new and clean. Fouling of the membranes by inorganic and organic contaminants as well as biofouling are some of the main issues effecting the performance and cost of running water treatment systems.

AFM is an activated mesoporous aluminosilcate with glass as a structural substrate. The surface area is over 1,000,000m2 per tonne of filter media of a particle size 0.5 to 1.0mm. The very large surface area has a negative -ve charge for the adsorption of positive +ve particles that are too small to be mechanically removed from the water. The pre-coagulation and flocculation stage will drag some chemicals out of solution to form small positive charge particles that are easy to remove by AFM.

AFM is used prior to UF and RO, however AFM filtration can actually out-perform UF filtration when combined with pre coagulation and flocculation via a ZPM static mixer prior to AFM filtration. AFM is a much lower cost than UF and can remove most particles down to 0.1 microns and many particles that are much smaller by adsorption reactions. While UF will give absolute filtration down to 0.03 microns, AFM can give nominal filtration down to at least 0.1microns and sub 0.01 micron particles by electrical adsorption reactions. AFM will also remove many chemicals and pollutants from solution by selective molecular sieve adsorption. Indeed we can now activate AFM to remove specific dissolved priority substances from water. AFM can therefore perform better than UF and is a more cost effective and efficient option as a pre-treatment prior to RO.

Regeneration of AFM is by a simple back-wash using filtered water, and the process is 100% sustainable, the media should last for the life of the filtration system.

You don't need to use chlorine with AFM for cleaning, so no THM (trihalomethane) production with organic matter such as organic acids. In addition to dissolved natural organic matter TCP (trichlorophenol) can act as a precursor for the production TCA trichloroanisole. TCA has a terrible taste even at single-digit parts per trillion.

 

SDI control in membrane -

As a pre-treatment prior to RO or UF, the SDI after AFM will be at least 50% to 75% lower than the SDI from a sand filter. IFTS independent accredited laboratory have conducted a very detailed analysis of AFM in comparison to sand other media. The results confirm the superior performance of AFM.

 

Use of AFM in SWRO plants -

SWRO - Sea water reverse osmosis has found a great importance today as a technology for the reclamation of brackish water or sea water and making it portable enough for human consumption or industrial applications.

The most common schematics of an SWRO consists of a pre-filtration after a grit removal by an MGF/MMF followed by a disc filter and further to UF & RO. Sea water in most of the cases of has a large contamination of organics, bromine & other heavy metals. The most common biocide preferred for the use as a pretreatment for disinfection and sanitation to an SWRO is chlorine.

Chlorine in presence of organics, bromine & other heavy metal forms several chlorinated & disinfection byproducts including bromates which are no desirable in the SWRO plants. There are several instances which are brought to notice with contamination of the membranes in RO due to DBP's & bromates.

UF and RO membranes work best when the membranes are new and clean. Fouling of the membranes by inorganic and organic contaminants as well as biofouling are some of the main issues affecting the performance and cost of running membrane water filtration systems.

 

AFM as a media instead of sand -

• Appearance: Black
• Carbon Content: 80%min
• Grain Shape: Angular to sub-angular
• Use: Filter Material
• Would remove organics & heavy metal from water.
• Reduce the SDI in the membrane.
• Increase the lifespan of the RO & UF membranes.
• Reduced downtime for membrane maintenance.
• Prevents biofouling and contamination in the membrane.
• Reduce load on the RO & UF by removing micron & submicron size particles.

Additional Information:

• Minimum Order Quantity: 50 Kg

Product Details:

Benefits of AFM -

• AFM mechanically removes most particles down to 5 microns.
• Sand surface area, approx 3000m2/tonne, AFM surface area >1,000,000 m2/tonne
• The high surface negative charge potential helps to adsorb micron and sub-micron particles as well as some dissolved organics
• AFM rejects bacteria growth and worm-hole channelling
• Backwash water requirement reduced by 50%.
• No requirement to replace AFM for the life of the filter.
• AFM removes heavy metals, Iron, Manganese & Arsenic from the water.
• AFM reduces BOD, COD from the water.
• Reduced consumption of biocides & flocculants by 25 to 50%.
• AFM removes organic impurities/NOM from the water.
• AFM Removes colour & odour.

Certain specialised applications of AFM -

In addition to traditionally recommended substitute to filter media in rapid gravity sand filters or pressure sand filters. There are several critical application performed by AFM.

• Removal or Arsenic from the Potable water.
• Removal of chromium 6 from waste water.
• For COD reduction in waste water.( Textile, dyes & chemical industry).
• For colour removal in waste water.
• For removal of pseudomonas in process water.
• Process water treatment in pressure sand filters.
• Process water treatment for power plants.
• Raw water treatment in SWRO plants.
• AFM as a substitute to Disc, Bag, Cartridge filters.

Product Details:

AFM – Active Filter Media is a product of Dryden Aqua Research & Development over the last 20 years to replace filter grade sand. AFM is manufactured from a specific type of glass and processed to provide a hydraulically optimised media in terms of particle shape and particle size distribution. The glass then proceeds through an activation process to increase the surface area by 300 times over crushed glass or sand. The high surface area is negatively charged (zeta potential) to adsorb organics and small particles, the surface also has permanent metal oxide catalysts that give a high redox potential to make AFM self-sterilizing and the only activated glass filter media.

AFM Properties -

• AFM®is an activated amorphous alumino-silicate with positive charge organic adsorption (OAD) number greater than 10, the activated hydrophilic surface has cation bridging, hydrogen bonding and entropic interactions with organic molecules.
• High surface electrical charge density Zeta potential > -70mv
• AFM®is certified under Regulation 31 in the UK and International NSF61
• AFM®is compliance with European Water Directive (98/83/EC) & (80/778/EEC)
• AFM®manufactured under ISO9001-2008 quality procedures.
• AFM®complies with BSEN12902 and BSEN 12904.
• Uniformity coefficient better than 1.5
• Sphericity factor better than 0.8

Benefits of AFM –

• AFM mechanically removes most particles down to 5 microns.
• Sand surface area, approx 3000m2/tonne, AFM surface area >1,000,000 m2/tonne
• The high surface negative charge potential helps to absorb micron and sub-micron particles as well as some dissolved organics
• AFM rejects bacteria growth and worm-hole channelling
• Backwash water requirement reduced by 50%.
• No requirement to replace AFM for the life of the filter.
• AFM removes heavy metals, Iron, Manganese & Arsenic from the water.
• AFM reduces BOD, COD from the water.
• Reduced consumption of biocides & flocculants by 25 to 50%.
• AFM removes organic impurities/NOM from the water.
• AFM Removes colour & odour.

Certain specialized applications of AFM –

In addition to traditionally recommended substitute to filter media in rapid gravity sand filters or pressure sand filters. There are several critical application performed by AFM.

• Removal or Arsenic from the Potable water.
• Removal of chromium 6 from waste water.
• For COD reduction in waste water.( Textile, dyes & chemical industry).
• For colour removal in waste water.
• For removal of pseudomonas in process water.
• Process water treatment in pressure sand filters.
• Process water treatment for power plants.
• Raw water treatment in SWRO plants.
• AFM as a substitute to Disc, Bag, Cartridge filters.

Additional Information:

• Delivery Time: READY STOCK
• Packaging Details: 25 KG BAGS

Use of AFM for the swimming pool application –

AFM® is successfully working in over 100‘000 private and public swimming pools worldwide.

 

Where to use AFM® in the swimming pool?

Every swimming pool has a pressure sand filter installed which normally has a sand as a media of different grades. AFM is used to replace existing filter media in the PSF.

 

Why use AFM in the swimming pool?

AFM® reduces the biological risk from bacteria and parasites as well as the chemical risk from water and air just above the surface. The result is a safer pool for children, a healthier workplace for staff in public pools and a greatly improved swimming experience for everyone.

Key benefits at a glance

• Crystal clear water: AFM® filters at least 30 % more than silica or glass sand.
• Lower consumption of chlorine: Everything filtered out doesn’t ??t need to be oxidised by chlorine. The better the filtration, the lower the chlorine demand.
• No trichloramine – no chlorine smell: AFM® prevents the growth of biofilm, therefore, eliminating trichloramine.
• No biofilm – no Legionella: Biofilm is a slippery film of bacteria, that can provide a home for pathogens such as Legionella, Staphylococcus and (MRSA) Pseudomonas.
• Chlorine-free systems: AFM® greatly reduces the oxidation demand of the water which makes it perfect for chlorine free systems.

Commercial benefits of use of AFM in swimming pool -

• No lump formation in the PSF or no need to replaces the sand in the bed for the life of the filter.
• Reduced chemical consumption by 20 to 30% at least.
• Reduced operational, handling and manpower cost.
• Breakeven point of less than 1 year.
• The cost of health can not be measured in terms of money.

Specifications

• Single filter water flow:2-50m3 / h
• Pressure rating:2.5-16 bars
• Type: media filter
• Application:irrigation water treatment
• Material:Carbon Steel
• Control mode:DP/TIMER
• Application:irrigation water treatment
• Material:Carbon Steel

Additional Information:

• Minimum Order Quantity: 50 Kg

Product Details:

AFM - Active filter media.

AFM - active filter media is a product of Dryden Aqua Research & Development over the last 20 years to replace filter grade sand. AFM is manufactured from a specific type of glass and processed to provide a hydraulically optimised media in terms of particle shape and particle size distribution. The glass then proceeds through an activation process to increase the surface area by 300 times over crushed glass or sand. The high surface area is negatively charged (zeta potential) to adsorb organics and small particles, the surface also has permanent metal oxide catalysts that give a high redox potential to make AFM self-sterilising and the only activated glass filter media.

AFM properties -

• AFM is an activated amorphous alumino-silicate with positive charge organic adsorption (OAD) number greater than 10, the activated hydrophilic surface has cation bridging, hydrogen bonding and entropic interactions with organic molecules.
• High surface electrical charge density Zeta potential > -70mv
• AFM is certified under Regulation 31 in the UK and International NSF61
• AFM is compliance with European Water Directive (98/83/EC) & (80/778/EEC)
• AFM manufactured under ISO9001-2008 quality procedures.
• AFM complies with BSEN12902 and BSEN 12904.
• Uniformity coefficient better than 1.5
• Sphericity factor better than 0.8

Benefits of AFM-

• AFM mechanically removes most particles down to 5 microns.
• Sand surface area, approx 3000m2/tonne, AFM surface area >1,000,000 m2/tonne
• The high surface negative charge potential helps to absorb micron and sub-micron particles as well as some dissolved organics
• AFM rejects bacteria growth and worm-hole channelling
• Backwash water requirement reduced by 50%.
• No requirement to replace AFM for the life of the filter.
• AFM removes heavy metals, Iron, Manganese & Arsenic from the water.
• AFM reduces BOD, COD from the water.
• Reduced consumption of biocides & flocculants by 25 to 50%.
• AFM removes organic impurities/NOM from the water.
• AFM Removes colour & odour.

Certain specialised applications of AFM-

In addition to traditionally recommended substitute to filter media in rapid gravity sand filters or pressure sand filters. There are several critical application performed by AFM.

• Removal or Arsenic from the Potable water.
• Removal of chromium 6 from waste water.
• For COD reduction in waste water.( Textile, dyes & chemical industry).
• For colour removal in waste water.
• For removal of pseudomonas in process water.
• Process water treatment in pressure sand filters.
• Process water treatment for power plants.
• Raw water treatment in SWRO plants.
• AFM as a substitute to Disc, Bag, Cartridge filters.

Additional Information:

• Delivery Time: 3 to 5 working days
• Packaging Details: 25 kg bag

Product Details:

Use of AFM from Arsenic removal from groundwater -

Arsenic is often found in borehole/tube wells and ground water at varying concentrations depending upon the geology of the ground. In India western states along with certain locations in the south have fairly high contamination of Arsenic in the groundwater. IN certain cases Arsenic is also found in the waste water effluent of certain industries.

 

Process

1. Oxidation reactions to convert metals from soluble ionic form to insoluble oxidised precipitate, pH correction and redox correction.

2. Decantation may be required if the concentrations are above 5 mg/l, if not proceed to AFM filtration.

3. AFM filtration to remove the suspended metal oxide solids, there will also be adsorption reactions and surface oxidation reactions.

Procedure

Oxidation: This is achieved through aeration of the water. The water is aerated for a period of no less than 60 minutes. If water flow is 50 m3/hr the aeration level is 100m3/hr of air and tank volume is 50m3 of water. Aeration also helps in removing the several dissolved gases from water and making the water to behave in a manner favourable for mechanical adsorption on AFM.

pH: The pH of the water should be increased to a value over pH 7.5

Appearance: Granules

Redox: The aeration system should increase the redox potential of the water. It is important to raise the potential to as high a value as possible. Certainly, it should be over 200mv.

1. Arsenic oxidation also benefits from the addition of ferric to the water. Arsenic is removed by oxidation and co-precipitation with ferric, example 0.1 mg/l As requires up to 1 mg/l of ferric (as ferric chloride)

 

AFM filtration

Pretreatment of the water prior to filtration by AFM is very important. AFM will remove the metals and metalloid by the following mechanisms;

• Oxidation and adsorption (similar to greensands and ferric media)
• Adsorption of sub-micron metal oxide particles
• Physical filtration of most particles down to 1 micron.

Arsenic removal by AFM is one of the recommended technology by the Department of science and technology. Several projects are in operation currently in the state of west Bengal for the removal of Arsenic from the ground water.

Product Details:

Filter Media For Pressure Sand Filters AFM - Active filter media. AFM - active filter media is a product of Dryden Aqua Research & Development over the last 20 years to replace filter grade sand. AFM is prepared from a specific type of glass and processed to provide a hydraulically optimised media in terms of particle shape and particle size distribution. The glass then proceeds through an activation process to increase the surface area by 300 times over crushed glass or sand. The high surface area is negatively charged (zeta potential) to adsorb organics and small particles, the surface also has permanent metal oxide catalysts that give a high redox potential to make AFM self-sterilizing and the only activated glass filter media. AFM properties -

• AFM is an activated amorphous alumino-silicate with positive charge organic adsorption (OAD) number greater than 10, the activated hydrophilic surface has cation bridging, hydrogen bonding and entropic interactions with organic molecules.
• High surface electrical charge density Zeta potential > -70mv
• AFMis certified under Regulation 31 in the UK and International NSF61
• AFMis compliance with European Water Directive (98/83/EC) & (80/778/EEC)
•  AFMprepared under ISO9001-2008 quality procedures.
• AFMcomplies with BSEN12902 and BSEN 12904.
• Uniformity coefficient better than 1.5
• Sphericity factor better than 0.8 Benefits of AFM -
• AFM mechanically removes most particles down to 5 microns.
• Sand surface area, approx 3000m2/tonne, AFM surface area >1,000,000 m2/tonne
• The high surface negative charge potential helps to adsorb micron and sub-micron particles as well as some dissolved organics
•  AFM rejects bacteria growth and worm-hole channeling
• Back wash water requirement reduced by 50%.
•  No requirement to replace AFM for the life of the filter.
• AFM removes heavy metals, Iron, Manganese & Arsenic from the water.
• AFM reduces BOD, COD from water.
•  Reduced consumption of biocides & flocculants by 25 to 50%.
•  AFM removes organic impurities/NOM from water.
•  AFM Removes color & odor. Certain specialized applications of AFM - In addition to traditionally recommended substitute to filter media in rapid gravity sand filters or pressure sand filters. There are several critical application performed by AFM.
• Removal or Arsenic from Potable water.
•  Removal of chromium 6 from waste water.
•  For COD reduction in waste water.( Textile, dyes & chemical industry).
•  For color removal in waste water.
•  For removal of Pseudomonas in process water.
•  Process water treatment in pressure sand filters.
•  Process water treatment for power plants.
•  Raw water treatment in SWRO plants.
•  AFM as an substitute to Disc, Bag, Cartridge filters.

Active Filter Media is a product of Dryden Aqua Research & Development over the last 20 years to replace filter grade sand. AFM is manufactured from a specific type of glass and processed to provide a hydraulically optimized media in terms of particle shape and particle size distribution. The glass then proceeds through an activation process to increase the surface area by 300 times over crushed glass or sand. The high surface area is negatively charged (zeta potential) to adsorb organics and small particles, the surface also has permanent metal oxide catalysts that give a high redox potential to make AFM self sterilizing and the only activated glass filter media.

AFM properties:

• AFM®is an activated amorphous alumino-silicate with positive charge organic adsorption (OAD) number greater than 10, the activated hydrophilic surface has cation bridging, hydrogen bonding and entropic interactions with organic molecules.
• High surface electrical charge density Zeta potential > -70mv
• AFM®is certified under Regulation 31 in the UK and International NSF61
• AFM®is is compliance with European Water Directive (98/83/EC) & (80/778/EEC)
• AFM®manufactured under ISO9001-2008 quality procedures.
• AFM®complies with BSEN12902 and BSEN 12904.
• Uniformity coefficient better than 1.5
• Sphericity factor better than 0.8

Benefits of AFM:

• AFM mechanically removes most particles down to 5 microns.
• Sand surface area, approx 3000m2/tonne, AFM surface area >1,000,000 m2/tonne
• The high surface negative charge potential helps to adsorb micron and sub-micron particles as well as some dissolved organics
• AFM rejects bacteria growth and worm-hole channelling
• Back wash water requirement reduced by 50%.
• No requirement to replace AFM for the life of the filter.
• AFM removes heavy metals, Iron, Manganese & Arsenic from the water.
• AFM reduces BOD, COD from water.
• Reduced consumption of biocides & flocculants by 25 to 50%.
• AFM removes organic impurities/NOM from water.
• AFM Removes color & odor.

Certain specialized applications of AFM:

In addition to traditionally recommended substitute to filter media in rapid gravity sand filters or pressure sand filters. There are several critical application performed by AFM.

• Removal or Arsenic from Potable water.
• Removal of chromium 6 from waste water.
• For COD reduction in waste water.( Textile, dyes & chemical industry).
• For color removal in waste water.
• For removal of pseudomonas in process water.
• Process water treatment in pressure sand filters.
• Process water treatment for power plants.
• Raw water treatment in SWRO plants.
• AFM as an substitute to Disc, Bag, Cartridge filters.

Additional Information:

• Port of Dispatch: NHAVASHEVA
• Production Capacity: 30000 TON ANNUM
• Delivery Time: 3 DAYS
• Packaging Details: 25 KG PLASTIC BAGS.

AFM – active filter media is a product of Dryden Aqua Research & Development over the last 20 years to replace filter grade sand. AFM is manufactured from a specific type of glass and processed to provide a hydraulically optimised media in terms of particle shape and particle size distribution. The glass then proceeds through an activation process to increase the surface area by 300 times over crushed glass or sand. The high surface area is negatively charged (zeta potential) to adsorb organics and small particles, the surface also has permanent metal oxide catalysts that give a high redox potential to make AFM self-sterilising and the only activated glass filter media.

AFM Properties -

• AFM®is an activated amorphous alumino-silicate with positive charge organic adsorption (OAD) number greater than 10, the activated hydrophilic surface has cation bridging, hydrogen bonding and entropic interactions with organic molecules.
• High surface electrical charge density Zeta potential > -70mv
• AFM®is certified under Regulation 31 in the UK and International NSF61
• AFM®is is compliance with European Water Directive (98/83/EC) & (80/778/EEC)
• AFM®manufactured under ISO9001-2008 quality procedures.
• AFM®complies with BSEN12902 and BSEN 12904.
• Uniformity coefficient better than 1.5
• Sphericity factor better than 0.8

Benefits of AFM –

• AFM mechanically removes most particles down to 5 microns.
• Sand surface area, approx 3000m2/tonne, AFM surface area >1,000,000 m2/tonne
• The high surface negative charge potential helps to adsorb micron and sub-micron particles as well as some dissolved organics
• AFM rejects bacteria growth and worm-hole channelling
• Backwash water requirement reduced by 50%.
• No requirement to replace AFM for the life of the filter.
• AFM removes heavy metals, Iron, Manganese & Arsenic from the water.
• AFM reduces BOD, COD from the water.
• Reduced consumption of biocides & flocculants by 25 to 50%.
• AFM removes organic impurities/NOM from the water.
• AFM Removes colour & odour.

Certain specialized applications of AFM –

In addition to traditionally recommended substitute to filter media in rapid gravity sand filters or pressure sand filters. There are several critical application performed by AFM.

• Removal or Arsenic from the Potable water.
• Removal of chromium 6 from waste water.
• For COD reduction in waste water.( Textile, dyes & chemical industry).
• For colour removal in waste water.
• For removal of pseudomonas in process water.
• Process water treatment in pressure sand filters.
• Process water treatment for power plants.
• Raw water treatment in SWRO plants.
• AFM as a substitute to Disc, Bag, Cartridge filters.

AFM - Active filter media.

AFM - active filter media is a product of Dryden Aqua Research & Development over the last 20 years to replace filter grade sand. AFM is manufactured from a specific type of glass and processed to provide a hydraulically optimized media in terms of particle shape and particle size distribution. The glass then proceeds through an activation process to increase the surface area by 300 times over crushed glass or sand. The high surface area is negatively charged (zeta potential) to adsorb organics and small particles, the surface also has permanent metal oxide catalysts that give a high redox potential to make AFM self sterilizing and the only activated glass filter media.

AFM properties -

• AFMis an activated amorphous alumino-silicate with positive charge organic adsorption (OAD) number greater than 10, the activated hydrophilic surface has cation bridging, hydrogen bonding and entropic interactions with organic molecules.
• High surface electrical charge density Zeta potential > -70mv
• AFMis certified under Regulation 31 in the UK and International NSF61
• AFMis is compliance with European Water Directive (98/83/EC) & (80/778/EEC)
• AFMmanufactured under ISO9001-2008 quality procedures.
• AFMcomplies with BSEN12902 and BSEN 12904.
• Uniformity coefficient better than 1.5
• Sphericity factor better than 0.8

Benefits of AFM -

• AFM mechanically removes most particles down to 5 microns.
• Sand surface area, approx 3000m2/tonne, AFM surface area >1,000,000 m2/tonne
• The high surface negative charge potential helps to absorb micron and sub-micron particles as well as some dissolved organics
• AFM rejects bacteria growth and worm-hole channelling
• Backwash water requirement reduced by 50%.
• No requirement to replace AFM for the life of the filter.
• AFM removes heavy metals, Iron, Manganese & Arsenic from the water.
• AFM reduces BOD, COD from the water.
• Reduced consumption of biocides & flocculants by 25 to 50%.
• AFM removes organic impurities/NOM from the water.
• AFM Removes colour & odour.

Certain specialised applications of AFM -

In addition to traditionally recommended substitute to filter media in rapid gravity sand filters or pressure sand filters. There are several critical application performed by AFM.

• Removal or Arsenic from the Potable water.
• Removal of chromium 6 from waste water.
• For COD reduction in waste water.( Textile, dyes & chemical industry).
• For colour removal in waste water.
• For removal of pseudomonas in process water.
• Process water treatment in pressure sand filters.
• Process water treatment for power plants.
• Raw water treatment in SWRO plants.
• AFM as a substitute to Disc, Bag, Cartridge filters.

AFM - active filter media is a product of Dryden Aqua Research Development over the last 20 years to replace filter grade sand. AFM is manufactured from a specific type of glass and processed to provide a hydraulically optimised media in terms of particle shape and particle size distribution. The glass then proceeds through an activation process to increase the surface area by 300 times over crushed glass or sand. The high surface area is negatively charged (zeta potential) to adsorb organics and small particles, the surface also has permanent metal oxide catalysts that give a high redox potential to make AFM self-sterilising and the only activated glass filter media.

AFM properties -

• AFMis an activated amorphous alumino-silicate with positive charge organic adsorption (OAD) number greater than 10, the activated hydrophilic surface has cation bridging, hydrogen bonding and entropic interactions with organic molecules.
• High surface electrical charge density Zeta potential > -70mv
• AFMis certified under Regulation 31 in the UK and International NSF61
• AFM is compliance with European Water Directive (98/83/EC) (80/778/EEC)
• AFM manufactured under ISO9001-2008 quality procedures.
• AFM complies with BSEN12902 and BSEN 12904.
• Uniformity coefficient better than 1.5
• Sphericity factor better than 0.8

Benefits of AFM -

• AFM mechanically removes most particles down to 5 microns.
• Sand surface area, approx 3000m2/tonne, AFM surface area >1,000,000 m2/tonne
• The high surface negative charge potential helps to adsorb micron and sub-micron particles as well as some dissolved organics
• AFM rejects bacteria growth and worm-hole channelling
• Backwash water requirement reduced by 50%.
• No requirement to replace AFM for the life of the filter.
• AFM removes heavy metals, Iron, Manganese Arsenic from the water.
• AFM reduces BOD, COD from the water.
• Reduced consumption of biocides flocculants by 25 to 50%.
• AFM removes organic impurities/NOM from the water.
• AFM Removes colour odour.

Certain specialised applications of AFM -

In addition to traditionally recommended substitute to filter media in rapid gravity sand filters or pressure sand filters. There are several critical application performed by AFM.

• Removal or Arsenic from the Potable water.
• Removal of chromium 6 from waste water.
• For COD reduction in waste water.( Textile, dyes chemical industry).
• For colour removal in waste water.
• For removal of pseudomonas in process water.
• Process water treatment in pressure sand filters.
• Process water treatment for power plants.
• Raw water treatment in SWRO plants.
• AFM as a substitute to Disc, Bag, Cartridge filters.

AFM – Active filter media.

AFM – active filter media is a product of Dryden Aqua Research Development over the last 20 years to replace filter grade sand. AFM is manufactured from a specific type of glass and processed to provide a hydraulically optimised media in terms of particle shape and particle size distribution. The glass then proceeds through an activation process to increase the surface area by 300 times over crushed glass or sand. The high surface area is negatively charged (zeta potential) to adsorb organics and small particles, the surface also has permanent metal oxide catalysts that give a high redox potential to make AFM self-sterilizing and the only activated glass filter media.

AFM properties -

• AFM®is an activated amorphous alumino-silicate with positive charge organic adsorption (OAD) number greater than 10, the activated hydrophilic surface has cation bridging, hydrogen bonding and entropic interactions with organic molecules.
• High surface electrical charge density Zeta potential > -70mv
• AFM®is certified under Regulation 31 in the UK and International NSF61
• AFM®is compliance with European Water Directive (98/83/EC) (80/778/EEC)
• AFM®manufactured under ISO9001-2008 quality procedures.
• AFM®complies with BSEN12902 and BSEN 12904.
• Uniformity coefficient better than 1.5
• Sphericity factor better than 0.8

Benefits of AFM –

• AFM mechanically removes most particles down to 5 microns.
• Sand surface area, approx 3000m2/tonne, AFM surface area >1,000,000 m2/tonne
• The high surface negative charge potential helps to absorb micron and sub-micron particles as well as some dissolved organics
• AFM rejects bacteria growth and worm-hole channelling
• Backwash water requirement reduced by 50%.
• No requirement to replace AFM for the life of the filter.
• AFM removes heavy metals, Iron, Manganese Arsenic from the water.
• AFM reduces BOD, COD from the water.
• Reduced consumption of biocides flocculants by 25 to 50%.
• AFM removes organic impurities/NOM from the water.
• AFM Removes colour odour.

Certain specialised applications of AFM –

In addition to traditionally recommended substitute to filter media in rapid gravity sand filters or pressure sand filters. There are several critical application performed by AFM.

• Removal or Arsenic from the Potable water.
• Removal of chromium 6 from waste water.
• For COD reduction in waste water.( Textile, dyes chemical industry).
• For colour removal in waste water.
• For removal of pseudomonas in process water.
• Process water treatment in pressure sand filters.
• Process water treatment for power plants.
• Raw water treatment in SWRO plants.
• AFM as a substitute to Disc, Bag, Cartridge filters.

AFM - active filter media is a product of Dryden Aqua Research & Development over the last 20 years to replace filter grade sand. AFM is manufactured from a specific type of glass and processed to provide a hydraulically optimized media in terms of particle shape and particle size distribution. The glass then proceeds through an activation process to increase the surface area by 300 times over crushed glass or sand. The high surface area is negatively charged (zeta potential) to adsorb organics and small particles, the surface also has permanent metal oxide catalysts that give a high redox potential to make AFM self-sterilising and the only activated glass filter media.

AFM properties -

• AFM is an activated amorphous alumino-silicate with positive charge organic adsorption (OAD) number greater than 10, the activated hydrophilic surface has cation bridging, hydrogen bonding and entropic interactions with organic molecules.
• High surface electrical charge density Zeta potential > -70mv
• AFM is certified under Regulation 31 in the UK and International NSF61
• AFM is compliance with European Water Directive (98/83/EC) & (80/778/EEC)
• AFM manufactured under ISO9001-2008 quality procedures.
• AFM complies with BSEN12902 and BSEN 12904.
• Uniformity coefficient better than 1.5
• Sphericity factor better than 0.8

Benefits of AFM -

• AFM mechanically removes most particles down to 5 microns.
• Sand surface area, approx 3000m2/tonne, AFM surface area >1,000,000 m2/tonne
• The high surface negative charge potential helps to absorb micron and sub-micron particles as well as some dissolved organics
• AFM rejects bacteria growth and worm-hole channelling
• Backwash water requirement reduced by 50%.
• No requirement to replace AFM for the life of the filter.
• AFM removes heavy metals, Iron, Manganese & Arsenic from the water.
• AFM reduces BOD, COD from the water.
• Reduced consumption of biocides & flocculants by 25 to 50%.
• AFM removes organic impurities/NOM from the water.
• AFM Removes colour & odour.

Certain specialised applications of AFM -

In addition to traditionally recommended substitute to filter media in rapid gravity sand filters or pressure sand filters. There are several critical application performed by AFM.

• Removal or Arsenic from the Potable water.
• Removal of chromium 6 from waste water.
• For COD reduction in waste water.( Textile, dyes & chemical industry).
• For colour removal in waste water.
• For removal of pseudomonas in process water.
• Process water treatment in pressure sand filters.
• Process water treatment for power plants.
• Raw water treatment in SWRO plants.
• AFM as a substitute to Disc, Bag, Cartridge filters.

AFM - active filter media is a product of Dryden Aqua Research & Development over the last 20 years to replace filter grade sand. AFM is manufactured from a specific type of glass and processed to provide a hydraulically optimised media in terms of particle shape and particle size distribution. The glass then proceeds through an activation process to increase the surface area by 300 times over crushed glass or sand. The high surface area is negatively charged (zeta potential) to adsorb organics and small particles, the surface also has permanent metal oxide catalysts that give a high redox potential to make AFM self-sterilising and the only activated glass filter media.

AFM properties -

• AFM is an activated amorphous alumino-silicate with positive charge organic adsorption (OAD) number greater than 10, the activated hydrophilic surface has cation bridging, hydrogen bonding and entropic interactions with organic molecules.
• High surface electrical charge density Zeta potential > -70mv
• AFM is certified under Regulation 31 in the UK and International NSF61
• AFM is compliance with European Water Directive (98/83/EC) & (80/778/EEC)
• AFM manufactured under ISO9001-2008 quality procedures.
• AFM complies with BSEN12902 and BSEN 12904.
• Uniformity coefficient better than 1.5
• Sphericity factor better than 0.8

Benefits of AFM -

• AFM mechanically removes most particles down to 5 microns.
• Sand surface area, approx 3000m2/tonne, AFM surface area >1,000,000 m2/tonne
• The high surface negative charge potential helps to absorb micron and sub-micron particles as well as some dissolved organics
• AFM rejects bacteria growth and worm-hole channelling
• Backwash water requirement reduced by 50%.
• No requirement to replace AFM for the life of the filter.
• AFM removes heavy metals, Iron, Manganese & Arsenic from the water.
• AFM reduces BOD, COD from the water.
• Reduced consumption of biocides & flocculants by 25 to 50%.
• AFM removes organic impurities/NOM from the water.
• AFM Removes colour & odour.

Certain specialised applications of AFM -

In addition to traditionally recommended substitute to filter media in rapid gravity sand filters or pressure sand filters. There are several critical application performed by AFM.

• Removal or Arsenic from the Potable water.
• Removal of chromium 6 from waste water.
• For COD reduction in waste water.( Textile, dyes & chemical industry).
• For colour removal in waste water.
• For removal of pseudomonas in process water.
• Process water treatment in pressure sand filters.
• Process water treatment for power plants.
• Raw water treatment in SWRO plants.
• AFM as a substitute to Disc, Bag, Cartridge filters.