Wastewater EngineeringNitrogen Removal Facility

Oyster Bay Sewer District

The project includes construction of a new two basin Sequencing Batch Reactor (SBR). To reduce capital costs, the existing primary clarifiers were converted to aerated pre-equalization basins. Fiberglass covers were installed over the pre-equalization basins with ducts to an activated carbon odor control system. Both trickling filters and the rotating biological discs were taken out of service.

To reduce hydraulic variations, existing secondary clarifiers were converted to post-equalization basins. A new masonry building was designed to house the belt thickener and polymer feed equipment, SBR and sludge holding tank blowers, and motor control center.