Collect. Czech. Chem. Commun. 1992, 57, 2089-2094

Sorption of Lead and Cadmium on Ostsorb P and Ostsorb SA-5 Cellulose Sorbents

Ladislav Svobodaa and Leona Čáňováb

a Department of Inorganic Technology, Institute of Chemical Technology, 532 10 Pardubice
b Research Section, Synthesia - East Bohemia Chemical Works, 532 17 Semtin


The effect of pH and ionic strength on the exchange capacity of sorbents based on modified bead cellulose was examined for the sorption of Pb2+ and Cd2+ ions. Ion exchange of these cations in aqueous solutions is nonselective on Ostsorb SA-5, which is cellulose containing functional groups based on H-acid. The medium acidic Ostsorb P cation exchanger with functional groups formed by the phosphoric acid fragment, on the other hand, sorbs lead, and to a lesser extent also cadmium, also at high ionic strengths of the medium even at low pH values.