Biological Denitrification process in anoxic fluidized bed reactor is a simple
way to eliminate nitrate – nitrogen that pollute the groundwater.
In this method the biofilm (including organic bacteria) was cultured on the
reactor bed particles, whi
ch we chose granular activated carbon (1-3) mm.
The raw water containing Nitrate ions and bacteria nutrients was pumped
into the bottom of the reactor in an adequate velocity to fluidize the bed
particles holding the biofilm.
Ethanol and DeHydrogenated Sodium ortho phosphate was chosen as
bacteria nutrients, Ethanol as carbonic nutrient and DeHydrogenated
Sodium ortho phosphate as phosphoric nutrient.