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DynaDeni
A process plant for the removal of nitrogen using the DynaSand-Deni,
denitrification process.
The water which is to be denitrified is admitted into the DynaSand filter through
an inlet distributor. As the water flows upwards through
the filter bed, nitrite (NO2-) and nitrate (NO3-) are converted into nitrogen (N2) by a layer of micro-organisms formed on the surfaces of the filter grains. The nitrogen is discharged from the filter by the air-lift pump.
Advantages
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Space saving |
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The N2 generated is simply removed by the air-lift pump, thus no "bed bumping" is needed |
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Predators cannot survive the action of the air-lift
pump and sand washer |
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Offers scope for automatically controlled addition of carbon, which prevents an increase in BOD caused by over-dosing |
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