The influences of medium pH, sorption temperature and sorption time are investigated. The static and dynamic saturated sorption capacities of PAR for absorbing Pb(II) are as high as 321.8 and 319.2 mg Pb(II)/g resin respectively. Pb(II) adsorbed onto macroporous phosphonic acid resin (PAR) can be eluted by using 0.1mol dm~(-3) EDTA. The sorption rate constant (k_(298)) is determined to be 5.88 X 10~(-4) sec~(-1). The basic sorption parameters and sorption mechamism of macroporous phosphonic acid resin for absorbing Pb(II) are determined on the basis of chemical analysis and IR spectrometry.
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