AFM®ng Activated Filter Media- Hydrophobic - New

AFM^® ng undergoes a new activation process to increase its surface area and to make it hydrophobic (non polar). Dryden Aqua has developed AFM^® ng to remove organics and microplastics from the water. Any non polar chemical will be more difficult to dissolve into water and it will tend to float like oil, or be adsorbed on to a non polar hydrophobic surface.
Organic matters are the precursor for the formation of Trihalomethanes (THMs), including chloroform. Thanks to its large hydrophobic area and highly mesopourous structure, AFM^® ng can filter much finer particles and approximately 50% more organic substances than sand. High filtration performance means less disinfectants are used, resulting in healthier water and better air quality at lower costs.

• ... more than doubles the performance of an existing filtration system
• ... is not subject to biodynamic instability and will never allow untreated water to pass
• ... substantially lowers chlorine oxidation demand
• ... 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

Manufacturing of AFM®

1. Clean, carefully selected glass
AFM^® is only made from pure green and brown glass which have the necessary metal oxides to help make AFM^® self-sterilising.

2. Ideal hydraulic properties
The raw material is ground into the optimal grain size and shape, crucial for the outstanding hydraulic properties of AFM^®.
No dangerous glass splinters are allowed to be present in the filter material. Our manufacturing process is ISO certified.

3. Activation process
The AFM^®activation process creates a mesoporous structure with a huge catalytic surface area for greater adsorption and catalytic reactions. Hydroxyl groups on the surface give AFM^® a strong negative charge, known as the zeta potential, that attracts heavy metals and organic molecules. In the presence of small amounts of oxygen or oxidising agents, the catalytic surface generates free radicals that make AFM^® self-sterilising.