Seamoretech Raises €1.1Mn to Turn Desalination Waste into Freshwater and Critical Minerals

The funding round included investments from Rypples, 7Seas Capital and Crédito Agrícola. The investors bring experience in the OceanTech and ClimateTech sectors.

“We are entering Seamoretech’s next phase with a clear ambition: to scale our technology, accelerate our market entry, produce freshwater at a lower cost, and establish a European reference in critical raw materials recovery, while helping protect marine ecosystems,” said Sofia Delgado, CEO and co-founder of Seamoretech.

Founded in 2021 by Delgado and Eva Sousa, Seamoretech started as a spin-off from the University of Porto’s Faculty of Engineering (FEUP). The company focuses on solving the problem of brine, a highly salty waste liquid produced by desalination plants.

Many industries treat brine as waste and release it into the ocean. Seamoretech has developed technology that turns this waste into useful products instead of allowing it to go to waste.

Its technology recovers fresh water and valuable minerals from brine. These include magnesium, calcium, copper and lithium, which are used in different industries.

The company uses a container-based system that can be easily installed at existing plants. It uses a process called forward osmosis to recover water and minerals while preventing liquid waste from being released back into the ocean. The system is designed to work without stopping plant operations or requiring upfront investment from plant operators.

According to Seamoretech, its technology can double freshwater production, reduce energy use by 50% compared with reverse osmosis and lower operating costs by 30%. It can also cut carbon emissions by up to 80% compared with traditional mineral mining.

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