Author(s)

A. T. Kassem^*, Y. T. Selim, N. El-Said

Hot Labs. and Waste Management Center, Atomic Energy Authority, Cairo, Egypt.

Separation and recovery of ^152+154Eu and ⁹⁰Sr from radioactive waste using tracer concentration from active material from waste tank in the ET-RR1 Egypt via hollow fiber supported liquid membrane (HFSLM) were achieved. The Polypropylene was used as supporter to carrier 0.5M Cyanex301/kerosene (bis(2,4,4-trimethylpentyl)dithiophosphinic acid and 0.1MEDTA as stripping of ^152+154Eu and ⁹⁰Sr ions from nitrate medium at pH ~3.6. The separation factor was found to be ~4 for ^152+154Eu over ⁹⁰Sr. The aqueous feed of mass transfer coefficient (k_i) and the organic mass transfer coefficient (k_m) were calculated to be (1.52 and 4.5) × 10^﹣2cm/s, respectively. In addition, the mass transfer modeling was performed and the validity of the developed model from experimental data was found to join in well with the theoretical values when the Cyanex301 concentration is higher than 1% (v/v). The number of cycles evaluated for complete separation of ^152+154Eu and ⁹⁰Sr is five cycles.

Hollow Fiber Supported Liquid Membrane, Separation and Recovery, ^152+154Eu and ⁹⁰Sr, EDTA (Stripping Phase)

Kassem, A. , Selim, Y. and El-Said, N. (2015) Hollow Fiber Supported Liquid Membrane for Separation and Recovery of ^152+154Eu and ⁹⁰Sr from Aqueous Acidic Wastes. American Journal of Analytical Chemistry, 6, 631-643. doi: 10.4236/ajac.2015.67061.