Evaluation of the Effect of Pitched Blade Impellers on the Performance of an Electrochemical Reactor

摘要

The use of electrochemical reactors to remove hexavalent chromium (Cr(VI)) in aqueous media, hasshown remarkable results and it can be considered as a potential clean technology. In order to increasethe reactor performance, its hydrodynamics must be studied. In this work, an electrochemical reactorwith rotating rings electrodes and inner impellers added to the drive shaft has been proposed. Itsperformance was evaluated by CFD simulations, for different arrays of impellers at different rotationalspeeds. Although power consumption increased for higher speeds, vorticity and turbulence intensitywere also increased inside the rotating rings electrode, thus improving the hydrodynamic performanceof the reactor..