Pump and Ejector Design in Wastewater Treatment Pilot Equipment

G. Actis Grande[1], A. Pezzin[1], G. Rovero[1]
[1]Politecnico di Torino, Torino, Italy
Published in 2014

Ozone treatment is an oxidative process used in wastewater treatment plant to demolish complex organic molecule. In the case of textile industry is required to adequately remove residual color, demolishing the chromophoric bonds or groups in the dye molecules.

A useful method for adding the ozone gas into water and maximize ozone-water mixing to increase mass transfer, is the use of Venturi ejectors.

Forcing water through Venturi body, it creates a differential pressure between the fluid inlet and outlet, which in turn creates a vacuum inside the ejector body. In this part, it is possible introduce ozone.

COMSOL Multiphysics® is used to define the design parameter of the ejector.