The University of Belgrade’s Institute for Multidisciplinary Research invented an urban photo-bioreactor. Liquid 3 cleans the air and serves as a bench in the Belgrade city centre.

It’s a tank filled with microalgae, a solar panel on the top generates electricity for USB charging ports for citizens and a pump that pumps air into the tank where the algae process the CO² and produce Oxygen.

https://balkangreenenergynews.com/liquid-tree-to-combat-air-pollution-in-belgrade/

  • @Cort
    7•2 months ago

    Even though microalgae are more efficient in binding carbon dioxide than regular plants, trees have a larger volume, and a higher density of biomass as our system involves a lot of water. That’s why one Liquid 3 can replace one adult tree regarding the capacity of binding carbon dioxide,” Spasojević said, reflecting on the first year of operation

    They also claim it’s better than trees with heavy metal tolerance & particulate matter