Institutional Research Week
Ms Monika Leevi
Q. What your research is about and the problems you wish to solve or have already solved?
A. My research focuses on the environmental impact of brine wastewater from green hydrogen desalination plants on coastal flora and fauna biodiversity, and the potential for repurposing this waste to mitigate harm. Green hydrogen production, through electrolysis, requires vast amounts of pure water, with desalination producing highly concentrated brine as a byproduct.
If discharged untreated into the ocean, this brine can severely affect marine ecosystems. For example, a 3 GW electrolyser like Hyphen will consume up to 500 tonnes of water per hour, generating nearly the same amount of brine.
This brine, over twice as saline as seawater (Omerspahic, 2022), disrupts the balance of coastal ecosystems, affecting the survival, growth, and metabolism of marine organisms.