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.

Your benefits at a glance

• … 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

 What makes AFM^® so effective?

Dryden Aqua Intellectual Property protects AFM^® but we are happy to share some of the key points;

1. We use predominantly green and brown container glass as it has the correct chemical and structural properties for our activation process.
2. Particle shape and size distribution are critical for the best fluid hydraulics and solids retention. For example, solids can easily push their way through glass bead filter media but with a subangular AFM^® media, the grains lock together to prevent the solids slipping through.
3. The AFM^® activation process increases the surface area available for adsorption by up to 300 times to 1‘000‘000 m²/m³. This means 300 times more surface area for the adsorption of dissolved organic pollutants. The huge surface area coupled with the magnetic attraction of the negative zeta potential makes AFM^® the best filtration media for potable water treatment.