Techno Press
Techno Press

Advances in Environmental Research   Volume 6, Number 4, December 2017, pages 301-315
DOI: http://dx.doi.org/10.12989/aer.2017.6.4.301
 
The adsorption-desorption behavior of strontium ions with an impregnated resin containing di (2-ethylhexyl) phosphoric acid in aqueous solutions
Hossein Sid Kalal, Ali Reza Khanchi, Mojtaba Nejatlabbaf, Mohammad Reza Almasian, Kamal Saberyan and Mohammad Taghiof

 
Abstract     [Full Text]
    An Amberlite XAD-4 resin impregnated with di(2-ethylhexyl)phosphoric acid was prepared and its adsorption-desorption behaviors with Sr(II) ions under various conditions was examined. The resin was characterized by fourier transform infrared and thermal analysis techniques. The effects contact time, temperature, pH, interfering ions and eluants were studied. Results showed that adsorption of Sr (II) well fitted with pseudo-second-order kinetic model. The equilibrium adsorption data of Sr (II) on the impregnated resin were analyzed by Jossens, Weber-van Vliet, Redlich-Peterson and Fritz-Schlunder models to find out desirable equilibrium condition. Among them, the Fritz-Schlunder model best fitted to the experimental data. The maximum sorption capacity of impregnated resin amounted to 0.45 mg/ g at pH 8.0 and 20oC.
 
Key Words
    strontium removal; Amberlite XAD-4; di (2-ethylhexyl) phosphoric acid; isotherm study
 
Address
Hossein Sid Kalal , Ali Reza Khanchi, Mojtaba Nejatlabbaf,
Mohammad Reza Almasian, Kamal Saberyan and Mohammad Taghiof: Materials and Nuclear Fuel Research School, Nuclear Science and Technology Research Institute, AEOI, P.O. Box 11365-3486, Tehran, Iran
 

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