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April 12, 2026Open Access

Valorising co-produced oxygen from green hydrogen systems: circular economy pathways in wastewater treatment

Key Points

The aim is to explore the utilization of co-produced oxygen from green hydrogen systems in wastewater treatment applications.
Examined potential applications of co-produced oxygen in aeration processes.
Evaluated oxidant production options like ozone and hydrogen peroxide.
Assessed impacts on efficiency and emissions in wastewater systems.
Co-produced oxygen improves aeration efficiency in wastewater treatment.
Ozone and hydrogen peroxide production can reduce overall emissions.
Support for circular economy practices in the water sector is highlighted.

Abstract

Co-produced O 2 from green hydrogen production enables wastewater treatment applications, including aeration and oxidant production (O 3 , H 2 O 2 ), with potential opportunities to enhance efficiency, reduce emissions, and support water-sector circularity.

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Journals

Environmental Science Water Research & Technology

Institutions

The University of Melbourne

The University of Queensland

Monash University

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