To Content

Optimizing the infusion of ozone into water

Molecular gas infusion into water

Objective:

The purpose of the project is to investigate and optimize the methodologies for infusion of ozone into water.

Justification:

The aim is to maximize the mass transfer efficiency from the gas to the liquid phase, while reducing the gas emanation. By optimizing these parameters, the amount of ozone needed for the disinfection is potentially lowered and thereby the costs too.

Method:

The project is focusing on infusion of ozone into water. Multiple injection methods e.g. a venture system and micro/nano bubbles are compared. The experiments are conducted in a closed tank system, where the injection methods are compared by their mass transfer rate, the power consumption, max. injected concentrations, maintenance and operational costs. An amperometric membrane electrode sensor is used as an ozone analyzer to determine the mass balance of the system.

The experiments are conducted in line with the development of the GUDP Project – WASHO3 in order to determine the best available techniques for disinfection of fruits and vegetables.

Expected outcome:

We aim to get a better understanding of the different mass transfer mechanisms happening when ozone is infused into water. We expect to clarify how the different operational parameters are affecting the transfer efficiency as well as which factors are affecting the gas emanation. An optimization can potentially provide a reduction of costs and an increase of the mass transfer.

Tangible goals:

We are going to compare the available gas injection techniques and dissolved ozone measuring systems. From these results we will determine which one fits the best for the construction of a prototype to be tested in the food industry.

 

To Content