Description

The deep-bed denitrification filter is a treatment unit which combines the functions of biological denitrification and fitration. The ceramic filter media with special size and shape is applied as the media for the growth of bio-film, which makes the filter equipped with the functions of nitrate, SS and total phosphorous removal. The denitrification can be achieved without dosing external carbon source if the ratio of BOD5/TN in influent is more than 3;otherwise, the external carbon source is required to achieve a good denitrification performance.

Deep bed denitrification filter is eligible to the plan in which the total nitrogen in the effluent must conform to certain requirements.

• The entire filter bed is in the anoxic condition in which NO3-N and NO2-N are deoxidized to N2 by nitrifier, thus achieve the denitrification.

• Equation：

 2NO2-+6H+ → N2↑+2OH-＋2H2O

 2NO3-+10H+→ N2↑+2OH-＋4H2O

Applications

It could be used in the treatment of industrial wastewater, surface water, reused water, drinking water plant and Municipal Wastewater Treatment Plant.

Technical parameters

Advantages

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