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Abstract PS-D2EHPA beads were prepared by immobilizing di-2-ethylhexyl-phosphoric acid (D2EHPA) with polysulfone (PSf). The removal experiments of Cu(II) and Pb(II) by the prepared PS-D2EHPA beads were conducted batchwise. The removal efficiency of Cu(II) and Pb(II) by PS-D2EHPA beads was increased with increasing pH of solution. The removal rate of Cu(II) and Pb(II) was well described by the pseudo-second-order kinetic model. The maximum removal capacity of Cu(II) and Pb(II) obtained from Langmuir isotherm were 2.58 mg/g and 12.63 mg/g, respectively. External mass transfer coefficients for the removal of Cu(II) and Pb(II) by PS-D2EHPA beads were obtained 0.61×10 -2 5.87×10 -2 /min and 1.55×10 -2 8.53×10 -2 /min, respectively and diffusion coefficients were obtained 1.32×10 -4 3.98×10 -4 cm 2 /min and 1.80×10 -4 2.28×10 -4 cm 2 /min, respectively. Key words : D2EHPA, Polysulfone, Immobilization, Cu(II), Pb(II), Extractant 1) 1.             Cu(II) Pb(II)            ,             (Cui , 2013).        -    . Mishra Devi(2011)  Cyanex 921  Cu(II)     , Sarangi (2007)  tri-n-butyl phosphate(TBP), LIX 84I  Cyanex 923       Cu(II), Fe(III), Zn(II)     . Ren (2007)  di-(2-

Removal of Cu(II) and Pb(II) by Solid-Phase Extractant Prepared by Immobilizing D2EHPA with Polysulfone