Seawater Plant for Removing Greenhouse Gases

After successful pilot programs, UCLA has partnered with Singapore’s national water agency and others to build the world’s largest ocean-based carbon dioxide removal plant capable of removing 3,650 metric tons (8,046,873 lb) of the greenhouse gas per year while producing 105 metric tons (231,000 lb) of carbon-negative hydrogen. According to the World Bank, average global carbon dioxide emissions in 2020 were 4.3 metric tons (9,500 lb) per capita. With this figure in mind, researchers from the UCLA Samueli School of Engineering have been working to trap atmospheric carbon dioxide from the oceans in an effort to reduce it.

Following the successful launch of two seawater-based carbon dioxide-removal pilot systems in Los Angeles and Singapore in 2023, UCLA and its start-up company Equatic, are eyeing the next phase of the project: a US$20-million full-scale demonstration plant called Equatic-1. They’re supported by Singapore’s national water agency, the Public Utilities Board (PUB), Singapore’s National Research Foundation (NRF), and UCLA’s Institute for Carbon Management (ICM).


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