Advanced filtration media
Activated Glass Filtration Media
Activated Glass Filtration Media (AGFM) replaces traditional sand media in all filtration applications. It is manufactured from a specific glass type and processed to obtain the optimum particle size and shape, and then activated to increase the surface area by 300 times over crushed glass or sand. The high surface area is negatively charged (zeta potential) to electro-statically attract organics and small particles. It also has permanent metal oxide catalysts, creating a high redox potential, to make AGFM self-sterilizing.
Explore AGFM benefits
AGFM main benefits
Activated Glass Filtration Media replaces traditional sand in filtration applications with a higher-surface-area, longer-life media designed for efficient water treatment.
- ✓Over 30% lower running costs vs sand
- ✓Over 50% lower chlorine consumption and lower disinfection by-products vs sand
- ✓Filtration down to several microns at 100% efficiency without filtration aids
- ✓More than 4 times longer lifecycle than sand, with targeted removal of priority metal oxides
- ✓Guaranteed prevention of channeling and biological fouling on the AGFM surface
Recommended AGFM grades
The grades below show recommended arrangements from top to bottom on a bottom plate in pressure filters.
| Grade | Size (mm) | Commercial Purification | High Purification | Ultra Purification |
|---|---|---|---|---|
| Grade 0 | 0.25 - 0.50 | N/A | 20% | 60% |
| Grade 1 | 0.4 - 1.0 | 70% | 50% | 20% |
| Grade 2 | 1 - 2 | 15% | 15% | 10% |
| Grade 3 | 2 - 6 | 15% | 15% | 10% |
Recommended applications for AGFM
| Application Type | Removed by use of AGFM |
|---|---|
| Drinking water | Iron, Manganese, Arsenate and some priority chemicals |
| Municipal Wastewater | Phosphorous & Bacteria, BOD, COD & TOC |
| Industrial Process Water | Organic pollutants & oils, TSS, VSS & Particles < 1 micron |
| Industrial Wastewater | Colors and fine fibers, Residual mineral oils |
How to use AGFM
AGFM is a direct replacement for sand in media filters. Its 15% lower density means less media is required by weight than the equivalent sand.
Recommended operational parameters
| Parameter | Value |
|---|---|
| Filtration velocity | 1-15 m³/hr/m² |
| Back Wash velocity | 35-55 m³/hr/m² |
| Max. operating differential pressure | > 0.4 bar |
| Back Wash Duration | 5 - 10 mins |
| Water pH limits | 3 - 9 |
| Water temperature limits | 1-100 °C |
Important note: Before first use, backwash the media for 10 - 15 minutes three consecutive times with potable water, then rinse it for a further hour.
AGFM product details
| Name | Activated Glass Filtration Media (AGFM) |
| Usage | Replacement for sand in all media filtration applications |
| Material | Green recycled glass, uniquely shaped particles with activated surface |
| Unique Features | Bio-resistant, self-sterilizing, sustainable, activated filtration media |
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