Industrie De Nora S.p.A.
TETRA Denite - Denitrification and Filtration Process System
With Denite, the denitrification process and the filtration process are combined in a single system and provide superior process synergy. NO3-N is converted to nitrogen gas and captured within the media bed along with suspended solids and biomass formed from the denitrification reaction. The Denite gravity filter system operates in a downflow mode to maintain excellent suspended solids removal, thus avoiding the necessity for clarifiers or additional effluent polishing filters. The system integrates well with other plant treatment processes to provide superior total nitrogen (TN) below 3 mg/l and phosphorous removal.
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- Effective removal of nitrate-nitrogen
- Proprietary TETRAPace automatic dosing control offers savings of up to 30% in carbon consumption
- Patented SpeedBump operation removes accumulated gas that can build up in the filter. This can be accomplished without removing the reactor from service.
- Consistent and proven performance - even with low water temperatures
- Small footprint one tenth of the size of a conventional suspended growth system.
- Low levels of wastewater return - less than 4% (<2% typical) of the plant’s forward flow