Hello Badpacket,
PHOSaR was engineered, designed and manufactured to be an improved media compared to earlier generation GFO products including Granular media.
The PHOSaR pellet has a more uniform and sharper pore structure compared to the Granular form. This material was developed to address the weaknesses of the Granular form.
And as to surface area affecting adsorption, this is not granular Activated Carbon. The adsorption characteristics for PHOSaR are completely different compared to the large DOC molecules adsorped by GAC.
Pelletized PHOSaR and Granular media have the SAME capacity (to remove Phosphate, Arsenic and Silicates) per weight, but the pelletized PHOSaR allows a drop in pressure across the media bed which means MORE WATER flows THROUGH PHOSaR, not AROUND it. And if used in a Fluidized Media Reactor, PHOSaR is still superior to Granular Media as the pelletized media is more prone to tumble and spin and will allow more water flow through the reactor itself. In addition, the pelletized media is more robust, resistant to grinding itself to powder at higher water flow rates in a Fluidized Media Reactor.
PHOSaR is more FLEXIBLE, in that it can be used in more applications. PHOSaR pulls down Phosphates FASTER than Granular Media in the real world because more water will flow THROUGH it and not around it. PHOSaR is easier to rinse (if you so wish, RO/DI only please) and less dusty. And of course, PHOSaR doesn't stain water like the GFH product from Europe.
And I certainly hope that RANDY tests PHOSaR in his upcoming article. PHOSaR is the next evolutionary step in GFO products and to omit it would be ignoring the elephant in the room, so to speak.
If you or anyone else would like the raw material engineering data that conclusively proves PHOSaR's superiority, please email me at
jon@warnermarine.com
Best Wishes,
Jon Warner
Warner Marine