Pilot Barcelona
The area contains several waste treatment facilities, such as a bio-methanisation integral waste treatment plant, a waste incineration plant, and a pneumatic collection station; plus a covered WasteWater Treatment Plant (currently underneath the Forum Plaza), with a treatment capacity of 3M inhabitants, the biggest in Catalonia; and a wastewater sludge treatment plant. The odour problems caused by these plants are well known in the city, and depending on the time of the day and the meteorological conditions, one can smell fresh wastewater, sludge, fresh waste, decomposed residue or biogas. […]