Among the new features included in the contract is the implementation of a photovoltaic plant that will cover around 30% of the energy consumption of the facilities with renewable energy, as well as the installation of a new centrifugal decanter and an overflow control system equipped with a screening system. In addition, among other efficiency improvements, ACCIONA has included in its bid the implementation of an intelligent system, developed in-house, to control the aeration of the biological process called Biocontrol-Carr®. Its use will result in additional savings in the supply of oxygen to the biological treatment.
General Information
- Project: WWTP Mairena and Viso.
- Entity: EMASESA.
- Location: Mairena and Viso del Alcor, Seville. Spain.
- Design flow: 9,220 m3/day.
- Population: 41,000 inhabitants
Key points - treatment
Pre-treatment:
Large particle screens, sifting, desander, sand classifier, deoiler and influent flow metre
Secondary treatment:
Biological treatment of active sludge with nitrification-denitrification and stabilisation of sludge. O2 input / Mud recirculation / Sedimentation
Mud treatment:
Thickener
Miscellaneous:
Deodorising