The International Conference on Ozone and Advanced Oxidation (EA3G2024) was organized by the International Ozone Association (IOA) and co-organized by the Faculty of Engineering of the University of Porto and the University of Coimbra, held in the World of Wine, Vila Nova de Gaia, Portugal, from 27 to 29 November 2024. EA3G2024 event presented an overview of the current state of knowledge and latest advances regarding Ozone and Advanced Oxidation Processes.

The OZONE4WATER PI, Vítor Vilar, was a member of the Scientific Committee, Organizing Committee, and Local Organizing Committee. Other members of the OZONE4WATER project were members of the Local Organizing Committee (Francisca Moreira, Inês Rodrigues, Laura Cullen and Paulo Marrocos).

The OZONE4WATER team contributed to this conference with thirteen research works entitled “Recent advancements in the production of ozone by water electrolysis”, “Sustainability assessment of sidestream ozone injection systems for water treatment: venturi injector vs static mixer”, “A review of O2/O3 gas separation technologies”, “PDMS membrane for O2/O3 gas separation using a spiral wound module”, “Design of an ozone sidestream injection scheme: assessment of the influence of nozzle length on mixing efficiency”, “Design optimisation of a flow distribution device incorporated in a sidestream injection system for ozone water treatment”, “Ozone-based treatment of nanofiltration retentate from municipal secondary effluent applying a stainless-steel membrane contactor”, “Multi-membrane module for gas-liquid contact: proposal of a scale-up methodology for ozone side-stream injection systems”, “Ozone injection system based on a novel micro/meso-structured static mixer for the removal of contaminants of emerging concern from secondary effluent of urban WWTP”, “Sidestream ozone injection system based on a novel micro/meso-structured static mixer for pre-oxidation of drinking water”, “CFD-based assessment of the interfacial area generation mechanisms of gas-liquid flows in a novel micro/meso-structured static mixer”, “Assessment of topological characteristics of a novel micro/meso-structured static mixer on the gas-liquid mass transfer performance” and “Integration of membrane bioreactor with ozonation for the quaternary treatment of urban wastewaters”.

Inês Rodrigues was awarded the best poster short oral presentation, with the work entitled “PDMS membrane for O2/O3 gas separation using a spiral wound module”.