The BOxHy project, a collaboration between Flexens, Lhyfe and the DEEP department at Stockholm University, tackles the problem of anoxia in the Baltic Sea. This initiative aims to inject oxygen into the sea using suitable technology, while evaluating coastal sites for a pilot study and exploring opportunities for sectoral coupling with green hydrogen production.
Technological Innovation for the Marine Ecosystem
Deep oxygen injection (DOI) is a promising method for combating anoxia. It consists in releasing pure oxygen below the water surface, below the zone of high density variation, using a system that diffuses oxygen in micro-bubbles. The project will identify a suitable pilot site for the DOI and begin its preparation, including stakeholder engagement and identification of funding sources.
Green Hydrogen and Marine Health
BOxHy proposes a symbiotic approach to restoring the Baltic Sea by integrating green hydrogen production. The oxygen co-produced during water electrolysis, a hydrogen production process, would be used to revitalize marine ecosystems. This “super-green” hydrogen production could be essential to finance the oxygenation of the Baltic Sea.
Expertise and Innovation in Green Hydrogen
Lhyfe, a pioneer in green hydrogen production, is playing a key role in the BOxHy project. The company will study the integration of DOI technology with its offshore hydrogen production platform, and the possibility of replicating this platform in the Baltic Sea environment.
The BOxHy project represents a significant step forward in the fight against marine anoxia, while promoting the green hydrogen economy. This initiative could radically transform the health of the Baltic Sea and open up new horizons in sustainable hydrogen production.
