Collect. Czech. Chem. Commun. 1994, 59, 106-118

A Study of Lead Sorption by a Cellulose-Based Chelating Ion Exchanger Ostsorb Dtta

Ladislav Svoboda, Jaroslav Chutný and Miloslav Tomek

Department of Inorganic Technology, University of Chemical Technology, 532 10 Pardubice, Czech Republic


Complexing properties of the chelating ion exchanger based on spherical cellulose modified by the functional groups of diethylenetriaminetetraacetic acid, Ostsorb DTTA, have been studied in the sorption of lead from aqueous medium at various experimental conditions, such as pH, the dynamic or static arrangement of experiment, the presence of other compounds, the concentration of the ion being sorbed, the form of ion exchanger etc. The results have been compared with the data found with the known selective ion exchanger Dowex A-1. Ostsorb DTTA exhibits good kinetics of the ion exchange at the exchange capacity of 210 mg Pb g-1 for pH 6. For some applications, its lower mechanical stability and high water content in the swollen particles may be unfavourable.