India has installed its first "Liquid Tree" — a water-filled structure packed with microalgae that absorb CO₂ and release oxygen through photosynthesis — functioning as a compact, even more efficient air-purifying alternative for dense urban areas where planting real trees is difficult. The harvested algae can also be used as plant fertilizer, adding a circular-economy dimension to the system.
(c) Landivia Weber

L’Inde installe son premier «arbre liquide» à microalgues pour dépolluer les villes

CHEMINDIGEST

L’Inde a inauguré son premier «arbre liquide» — une structure transparente remplie d’une solution de microalgues qui absorbent le CO₂ et libèrent de l’oxygène par photosynthèse, en alternative compacte aux arbres conventionnels dans les zones urbaines denses où la végétation manque. Les algues récoltées peuvent aussi servir d’engrais, ajoutant une dimension d’économie circulaire au dispositif.

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