Scale-up Design of Ultrasound Irradiator for Advanced Oxidation Process (AOP) Using COMSOL Multiphysics® Simulation

Z. Wei[1]
[1]The Ohio State University, Columbus, OH, USA

Ultrasound is a promising green technology for the advanced oxidation process (AOP) since it adds no chemicals to the treated water. In this paper, COMSOL Multiphysics® was used as a tool to design and characterize an ultrasound irradiator with multi-stepped configuration, which aims to overcome disadvantages of typical irradiators and to enhance contaminant removal in large-scale water treatments. COMSOL adequately simulated the acoustic wave generation in the transducer and propagation through the irradiator. The simulated acoustic pressure level and distribution suggested the designed irradiator successfully introduced multiple reactive zones and had a great capacity for large-scale AOPs. The compatible simulation results to experimental measurements indicate COMSOL is a reliable tool in the design and characterization of scaled-up ultrasound irradiator.