Again Bio’s bacteria eats exhaust and spits vinegar (for the climate)
Reading Time: 2 minutesAgain Bio says its modified bacteria currently eats about a ton of CO2 per day.
Spun out by researchers at the Technical University of Denmark, Again Bio sics its hungry microbes on flue gas from a wastewater treatment plant in Copenhagen. The startup is 2.5 years old, and it quietly raised a $10 million seed round in February from ACME Capital, GV (formerly Google Ventures) and Atlantic Labs. The company also benefits from the nearly $47 million grant (€43 million) that Horizon Europe awarded to a project using Again’s tech, PyroCO2.
Again’s whole thing is piping industrial exhaust into a 65-foot-tall bioreactor, where its bacteria feeds on climate pollution and hydrogen, and excretes a useful byproduct: vinegar. The startup says it refines that byproduct into acetic acid and acetate — base chemicals for stuff like detergents, paints, pharmaceuticals and textiles. The point-of-source carbon capture service that Again offers is free, because its business is to sell the output.
Jensen added that the tech is now ‘producing at yields that are commercially viable.’
The firm declined to say more about the deal, which is apparently driving its expansion in Europe and North America.
In addition to genetically modifying the bacteria, ‘a lot of the work we’re also doing is forced evolution,’ Kufner clarified.
Again aims to help decarbonize industrial facilities, but the startup relies on hydrogen made from fossil fuels to deliver energy to its specialized bacteria. According to Jensen, the startup’s chemical production can be ‘carbon neutral’ using this gray hydrogen because Again can capture the CO2 from the hydrogen manufacturing process. Regardless, the methane industry, which powers gray hydrogen production, is a serious problem for the climate. Jensen added that Again intends to use green hydrogen — made via electrolyzers and renewable energy — in the future.
Ref: techcrunch
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