Method of recovering uranium enrichment and bioaccumulation in microalgae using genetically improved

摘要

The present invention relates to a recovery method and a method U of U through bioaccumulation in genetically improved microalgae. For these improved microalgae, the invention includes a method for artificial breeding selection by which the strain has been obtained Chlaf SCEP Chlamydomonas fonticola. This strain concentrated therein by active bioaccumulation, captured foreign uranium in the form of precipitated metal representing 3% of the dry biomass of algae. It also produces an isotopic fractionation IMAGE ** ** that can be applied in successive steps to increase 235U enrichment. The invention also includes the use of these microalgae in the recovery of dissolved uranium producing isotope fractionation can be used to obtain enriched uranium for industrial use and its use in bioremediation of water and / or soil contaminated with uranium (in mining, radioactive waste tanks, swimming pools extinguishing -radioactive decay-, nuclear accidents, spills, etc.).