Thesis Format

Monograph

Advanced oxidation of water micropollutants by ozone and hydrogen peroxide: Process intensification in a novel multiphase technology

Author

Jaime F. Mata de la VegaFollow

Degree

Master of Engineering Science

Program

Chemical and Biochemical Engineering

Supervisor

Domenico Santoro

2nd Supervisor

Lars Rehmann

Abstract

Ozone is a potent oxidant capable of oxidizing a wide range of contaminants. However, its low solubility requires enhanced mixing in Advanced Oxidation Processes. The MITO₃X^® technology, which enhances mixing and particle disaggregation, shows promise in this regard. This dissertation studies the efficacy of MITO₃X^® technology in water treatment through six distinct studies. These studies encompass an analysis of ozone dissolution efficiency throughout the system, an evaluation of MITO₃X^® performance by concurrently applying ozone and hydrogen peroxide both in the presence and absence of micropollutants, and a detailed assessment of micropollutant degradation using ozone as the exclusive reagent under three different water matrices. This dissertation identifies the most advantageous and less effective operational conditions under various scenarios for performance optimization to achieve superior pollutant removal. Furthermore, it delineates the degree of influence of each operational parameter impacting the performance of MITO₃X^®.

Summary for Lay Audience

The world is facing serious problems with cleaning up water, especially because of the increase in industry and the rise of harmful waste. The usual methods we use to clean water struggle to get rid of new types of pollutants that can be bad for our health, like causing cancer or damaging our genes. There's a promising solution called Advanced Oxidation Processes (AOPs), especially ones that use ozone. These processes can quickly break down complicated pollutants in water and also kill harmful germs. However, there's a challenge with ozone-based methods because ozone doesn't dissolve well in water, making it hard to clean the water effectively. To fix this, some people suggest using high-pressure systems with strong mixing to make sure the ozone spreads evenly and works better to clean the water. This research is all about studying a technology called MITO₃X^® to see if it can make ozone-based methods even more effective at cleaning water and getting rid of pollutants. The study is divided into six parts, looking at things like how pressure affects the cleaning process, how the MITO₃X^® system works with different speeds and flows, and how well ozone dissolves under different conditions. They also explore the use of a combination of ozone and hydrogen peroxide to clean water, test the removal of seven different pollutants in different types of water, and analyze the results using statistical methods to understand how different factors affect the efficiency of the MITO₃X^® system in removing pollutants.

Recommended Citation

Mata de la Vega, Jaime F., "Advanced oxidation of water micropollutants by ozone and hydrogen peroxide: Process intensification in a novel multiphase technology" (2023). Electronic Thesis and Dissertation Repository. 9873.
https://ir.lib.uwo.ca/etd/9873