In the scope of the project of the Subsystems of Sanitation of the Mondego Superior region, the project of execution of the WWTP of Alvôco das Várzeas in the Municipality of Oliveira do Hospital was elaborated, with capacity for 670 Hab.Eq: The plant was designed with tertiary treatment and tryed to be integrated as far as possbile int involving landscape.
The WWTP was devoleped underground in order to minimize its visual impact, and presents a line of tertiary treatment with nitrogen removal and final disinfection with UV.
It includes the following main components:
• Entrance with grade solids removal, sand and fats removal
• Activated Sludge Biological reactor – prolonged aeration with Nitrogen removal;
•Secondary decanter (two in parallel);
The Project also includes deodering equipments.