INFLATABLE AND INSOLUBLE FIBERS AND THEIR USE IN THE TREATMENT OF EFFLUENTS PREDOMINATELY WATER

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The present invention relates to swellable and insoluble fibres in an essentially aqueous effluent, to a method for preparing these fibres and to the use of these fibres for extracting, in an effluent, metals, in particular metal salts derived from heavy metals, from rare earth metals, from alkali metals, from alkaline-earth metals or from actinides, in the stable and unstable isotopic forms thereof.