A denitrification system for denitrified wastewater or nitrified water
treatment using a detergent or detergent-like compound comprising
available carbon. The system comprises a plurality of interconnected
tanks including a mixing tank which feeds detention tanks which in
combination provide a detention time period for the effluent. A
controller determines the amount of detergent dispensed into the mixing
tank in accordance with the measured volume of effluent to be treated.
The mixing tank comprises a heater for maintaining the nitrified effluent
temperature above 50 degrees F. An optional line filter can be added to
the output of the system for further reducing organic nitrogen
concentration. An alternate embodiment comprises passing the final
denitrified effluent through a pump chamber for pumping of the effluent
to a sand filter capable of reducing bacterial populations.