Ferrara Ongoing (completion scheduled in 2023) Revamping of anaerobic digester and treatment plant Improved management of purification sludge (reclamation of anaerobic digesters) Ca’ Nordio (PD) 197,000 Ongoing (to be completed in 2022) Plant upgrade measure Increase of the nominal power of the system to 230,000 p.e. Borgheria (PU) 116,500 Ongoing (to be completed in 2021) Measure to achieve plant’s regulatory compliance Improvement of purification efficiency and of compliance with applicable regulations.