Why Not Continue to Use Sand or Silica?
Modern glass and activated glass filters are significantly more resistant to biofouling, bio-coagulation and even transient wormhole channeling than sand or silica of any unfiltered water. Glass/activated glass filters do not require recharging or replacing for many many years.
African Pegmatite uses a specific glass type which has been taken from recycled glass and processed down to specific and optimised particle sizes and shapes (see below). This optimised glass is then put through a number of processes designed to negatively ‘activate’ the glass - thereby increasing its surface area by around 300 times normal amount whilst providing a small negative charge at the surface. This vastly improves its mechanical and electrostatic filtration performance.
Furthermore, the resulting activated surface is known to be self-sterilising. Which means bacteria and other impurities cannot attach themselves to the surface of the glass, but do not pass through the filter. Regeneration is simply applied by backwashing with water to restore glass particles to their initial state, as part of a standard process maintenance regime. Backwashing will dislodge undesirable particulates from the filter allowing for their disposal. This is possible because activated glass is not the same as standard glass media due to the aforementioned treatment.
Does Acti Desolidex require a change to current installations or equipment?
One of Acti Desolidex’s major advantages is that in the vast majority of cases, it can be simply swapped for the current filtration medium requiring no modification to filter housings or other operational changes. This is also the case for all activated glass filtration products available through African Pegmatite.
Summary
- Acti Desolidex is an advanced activated glass media filter for high performance water filtration operations
- Activated glass filters outperform traditional sand and/or silica based filters, providing better filtration over a longer lifetime and often at enhanced operation rates. Because of a lower bulk density, less glass filter medium has to be used compared to the equivalent for sand or silica
- Such filters rely on highly optimised grind sizes and an overall negative surface charge - making removal of heavy metals from liquids, for example, easier
- Glass filters and Acti Desolidex are environmentally friendly as they are produced from recycled glass waste
- The efficiencies generated in backwashing with Acti Desolidex are realised with 75 to 80% water savings for each backwash cycle - as a result of smooth particle shapes
- Acti Desolidex can be installed in pre-existing filtration setups without the need for extensive or expensive modifications
With a global distribution network providing the broadest reach and a wide bouquet of glass based water purification systems, African Pegmatite is best placed to supply high quality filter media - including Acti Desolidex - for any project size, for the most demanding and mission critical water purification applications.
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