(70f) Parametric Study on Physicochemical Properties of Ozone Microbubble - Applications to Fresh Produce Washing
AIChE Annual Meeting
2021
2021 Annual Meeting
Process Development Division
Environmentally Friendly Product and Process Development for Sustainability
Monday, November 8, 2021 - 9:55am to 10:18am
The biocidal effect by combining both microbubble and ozone largely depends on its unique physicochemical properties. However, very little is known about the influence of washing processing conditions on physicochemical properties. Here, we provide a systematic study on the influence of various washing processing conditions including bubble generation methods, fluid to gas ratio, pH level, temperature, ozone concentration, and organic compound load. We focus on those physicochemical properties that are relevant to the washing efficacy including bubble size distribution, number density, mass transfer rate, stability, zeta-potential, oxidation reduction potential. The large sets of experiments allow us to develop a data-driven model that will provide a better prediction and optimization of the system. Furthermore, this model can be used as a critical tool for a broad spectrum of applications using ozone microbubbles.