Gaseous emissions are emitted from various stages of treatment in a WWTP. Currently, in developed countries the energy required for wastewater treatment accounts for approximately 3% of the total electrical load.
The Asopos River Basin is located at the centre of Greece, at the River Basin District of Eastern Sterea Ellada, has an area of approximately 1100 km2. It experiences significant pollution problems that threaten both surface and groundwater bodies.
European Water Policy has undergone a thorough restructuring process, and the Water Framework Directive adopted in 2000 serves as the operational tool, setting the objectives for water protection for the future.
Wastewater management in Greece is being regulated by the Urban Waste Water Treatment Directive (UWWTD).