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Separationand recovery of 152+154Eu and 90Sr from radioactive wasteusing tracer concentration from active material from waste tank in the ET-RR1Egypt via hollow fiber supported liquid membrane (HFSLM) were achieved. ThePolypropylene was used as supporter to carrier 0.5M Cyanex301/kerosene(bis(2,4,4-trimethylpentyl)dithiophosphinic acid and 0.1MEDTA as stripping of 152+154Euand 90Sr ions from nitrate medium at pH ~3.6. The separation factorwas found to be ~4 for 152+154Eu over 90Sr. Theaqueous feed of mass transfer coefficient (ki) and the organic masstransfer coefficient (km) were calculated to be (1.52 and 4.5) × 102cm/s, respectively. In addition,the mass transfer modeling was performed and the validity of the developedmodel from experimental data was found to join in well with the theoreticalvalues when the Cyanex301 concentration is higher than 1% (v/v). The number ofcycles evaluated for complete separation of 152+154Eu and 90Sris five cycles.

american journal of analytical chemistry

Hollow Fiber Supported Liquid Membrane for Separation and Recovery of &amp;lt;sup&amp;gt;152+154&amp;lt;/sup&amp;gt;Eu and &amp;lt;sup&amp;gt;90&amp;lt;/sup&amp;gt;Sr from Aqueous Acidic Wastes