Verification of the hydrodynamic functionality of a municipal sewage treatment plant.
Among the main malfunctions that can arise in a sewage treatment plant are hydrodynamic anomalies. A hydrodynamic malfunction of the tanks can lead to the presence of substantial 'dead volumes' and 'flow by-passes' with a consequent increase in costs and reduction in plant performance. In this project, the degree of hydrodynamic functionality of biological reactors for the oxidation of organic matter and removal of nitrogenous forms, present in a municipal wastewater treatment plant also authorised to treat liquid waste, was evaluated. Thanks to an integrated RTD-CFD approach, it was possible to quantify and localise the 'dead volumes', allowing the operator to define subsequent localised interventions to restore functionality.
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