Saturday, 7 April 2012

Phosphate Removal / Granulated Ferric Oxide (GFO)

 
- One of the most common questions is whether to use a phosphate removal material, such as GFO, with carbon dosing. GFO is useful in removal of phosphates from the water column. Essentially, by carbon source additions, the same net result is being achieved. It may even be counterproductive to run GFO while dosing an organic carbon source as both nitrate and phosphates need to be present for this to work properly. Therefore, it is not needed and not commonly recommended but some people continue to run phosphate reactors concurrently.

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