Construct the lasting world - Science and Life

A mushroom eliminates the uranium of the polluted soil

By Olivier Donnars • June 2nd, 2008 in 22:26 · Category: Actuality

How to eliminate the depleted uranium, the not very radioactive but very toxic metal, which pollutes some soil? By growing filamentous mushrooms there, answers the biologist Marina Fomina, of the university of Dundee (Scotland), which discovered that not only these mushrooms grow very well in the presence of this metal, but also that they can transform it. In the humid soil of which are very fond mushrooms, the particles of uranium corrode and oxidise. And yet in the presence of mushrooms, the soil acidifies, what speeds corrosion up and mineralises the oxide of uranium in a complex of phosphate and of uranium, hardly dissociable. Trapped in filament, the particles of mineralised uranium are so more unloosed in the water and soil. A possible solution of decontamination of the soil of Iraq and of the Balkans, particularly polluted.

Picture: An American munition in the depleted uranium © DR

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