This California startup is cleaning water and removing CO2 from the atmosphere — all at a reduced cost

As more parts of the world face intense drought, new technologies are emerging to clean and reuse existing water. Investors are seeing potential for big profits. Water treatment is expensive. It uses a lot of energy and produces its own waste that gets disposed of at a hefty price. Capture6, a startup in Berkeley, California, says it's developing a solution, and one with an added benefit to the environment. Capture6's technology repurposes industrial and water treatment waste, generating clean water and capturing carbon dioxide from the atmosphere. "That combination of water treatment, brine management, and carbon capture all at once is part of what makes us unique, what makes our process innovative," said Capture6 CEO Ethan Cohen-Cole, who co-founded the company in 2021. "We are able to do so at reduced energy costs." The process is complex. It starts with the waste from any sort of water treatment process. Once the solids are removed, that waste is called brine, which is leftover ... Read full article.